EP2984344B1 - System and method for compressing carbon dioxide - Google Patents
System and method for compressing carbon dioxide Download PDFInfo
- Publication number
- EP2984344B1 EP2984344B1 EP14782970.9A EP14782970A EP2984344B1 EP 2984344 B1 EP2984344 B1 EP 2984344B1 EP 14782970 A EP14782970 A EP 14782970A EP 2984344 B1 EP2984344 B1 EP 2984344B1
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- European Patent Office
- Prior art keywords
- process fluid
- stage compressor
- compressor
- drive shaft
- inlet
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- 238000000034 method Methods 0.000 title claims description 146
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title description 35
- 229910002092 carbon dioxide Inorganic materials 0.000 title description 18
- 239000001569 carbon dioxide Substances 0.000 title description 18
- 239000012530 fluid Substances 0.000 claims description 125
- 230000006835 compression Effects 0.000 claims description 66
- 238000007906 compression Methods 0.000 claims description 66
- 238000011084 recovery Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 description 14
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011143 downstream manufacturing Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- 241000894433 Turbo <genus> Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/5826—Cooling at least part of the working fluid in a heat exchanger
Definitions
- compact motor-compressors may often attempt to achieve the higher compression ratios by increasing the number of compression stages within the single, hermetically sealed housing. Increasing the number of compression stages, however, increases the overall number of components (e.g., impellers and/or other intricate parts) required to achieve the desired compressor throughput (e.g., mass flow) and pressure rise to achieve the higher compression ratios. Increasing the number of components required in these compact motor-compressors may often increase length requirements for the rotary shaft and/or increase distance requirements between rotary shaft bearings. The imposition of these requirements often results in larger, less compact motor-compressor arrangements as compared to previous compact motor-compressors utilizing fewer compression stages.
- components e.g., impellers and/or other intricate parts
- Embodiments of the disclosure may provide a compression system.
- the compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotational energy.
- the compression system may also include a first single-stage compressor and a second single-stage compressor.
- the first single-stage compressor and the second single-stage compressor may each include a rotary shaft coupled with or integral with the drive shaft of the driver.
- the first single-stage compressor and the second single-stage compressor may be configured to compress a high molecular weight process fluid to provide a compressed process fluid having a pressure ratio of about 10:1 or greater.
- the compressed process fluid may contain heat from the compression thereof.
- a heat recovery system may be fluidly coupled with the first single-stage compressor and the second single-stage compressor. The heat recovery system may be configured to receive the compressed process fluid and absorb at least a portion of the heat contained in the compressed process fluid.
- Embodiments of the disclosure may further provide another compression system.
- the compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotation energy.
- the compression system may also include a first single-stage compressor having a first rotary shaft operatively coupled with a first end of the drive shaft.
- the first single-stage compressor may have a compression ratio of at least about 3.8:1 and may be configured to compress a process fluid containing carbon dioxide to provide a first compressed process fluid.
- the compression system may further include a second single-stage compressor having a second rotary shaft operatively coupled with a second end of the drive shaft.
- the second single-stage compressor may have a compression ratio of at least about 2.7:1 and may be configured to compress the first compressed process fluid to provide a second compressed process fluid.
- the second compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of at least about 10:1.
- Embodiments of the disclosure may further provide a method for compressing a process fluid.
- the method may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft.
- the drive shaft may be operatively coupled with the first single-stage compressor and the second single-stage compressor and may be driven by a driver.
- the method may also include compressing the process fluid via the first single-stage compressor and the second single-stage compressor to provide a compressed process fluid.
- the compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of about 10:1 or greater.
- the method may further include directing the compressed process fluid to a heat recovery system and absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system.
- first and second features are formed in direct contact
- additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact.
- exemplary embodiments presented below may be combined in any combination of ways, i.e., any element from one exemplary embodiment may be used in any other exemplary embodiment, without departing from the scope of the disclosure.
- Figure 1 illustrates a schematic of an exemplary compression system 100 for pressurizing a process fluid, the compression system 100 including a plurality of compressors 140, 150 coupled with a driver 102, according to one or more embodiments.
- the compressors 140, 150 may be direct-inlet or axial-inlet, centrifugal compressors.
- each of the compressors 140, 150 may be a single-stage compressor having compression ratios of at least about 2.5:1 or greater.
- each of the compressors 140, 150 may include a rotary shaft 114, 116 coupled with a drive shaft 108 of the driver 102.
- Each of the compressors 140, 150 may be coupled with the driver 102 at opposing ends of the drive shaft 108 in a "double-ended" configuration or arrangement.
- a rotary shaft 114 of a first compressor 140 may extend therefrom and may be coupled with a first end 104 of the drive shaft 108
- a rotary shaft 116 of a second compressor 150 may extend therefrom and may be coupled with a second end 106 the drive shaft 108.
- the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 may be coupled with the drive shaft 108 via one or more gears (not shown).
- the one or more gears coupling the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 with the drive shaft 108 may allow the rotary shafts 114, 116 to spin at a faster or slower rate than the drive shaft 108.
- the rotary shafts 114, 116 of the first compressor 140 and/or the second compressor 150 may be integral with the drive shaft 108 of the driver 102.
- the driver 102 may drive the first and second compressors 140, 150 by providing rotation energy to the drive shaft 108, thereby rotating the rotary shafts 114, 116 coupled therewith.
- the drive shaft 108 may include a single segment or multiple segments (not shown) coupled with one another via one or more gears (not shown). The one or more gears coupling the multiple segments of the drive shaft 108 may allow a first segment of the drive shaft 108 to spin at a faster or slower rate than a second segment of the drive shaft 108.
- the driver 102 may be an electric motor, such as a permanent magnet motor, and may include a stator (not shown) and a rotor (not shown). It may be appreciated, however, that other embodiments may employ other types of electric motors including, but not limited to, synchronous motors, induction motors, brushed DC motors, or the like.
- the driver 102 may also be a hydraulic motor, an internal combustion engine, a gas turbine, or any other device capable of driving the rotary shafts 114, 116 of the first and second compressors 140, 150, either directly or through a power train.
- the compressors 140, 150 may be overhung at opposing ends of the driver 102.
- the first compressor 140 may be positioned or located along the rotary shaft 114 such that the first compressor 140 may not include additional bearings on the upstream ( e.g ., left, as illustrated in Figure 1 ) side of the rotary shaft 114.
- the second compressor 150 may be positioned or located along the rotary shaft 116 such that the second compressor 150 may not include additional bearings on the downstream ( e.g ., right, as illustrated in Figure 1 ) side of the rotary shaft 116.
- at least one of the compressors 140, 150 may be positioned about its respective rotary shaft 114, 116 between two or more bearings (not shown).
- the compressors 140, 150 may be fluidly coupled with one another via a network of piping 130.
- the piping 130 may be formed from a plurality of pipes, commonly referred to as lines or conduits, configured to fluidly couple the compressors 140, 150 with one another.
- One or more process fluids may flow through the compressors 140, 150 and the piping 130 fluidly coupling the compressors 140, 150.
- the compressors 140, 150 and the piping 130 may form, at least in part, a process fluid passageway through which the process fluids may be flowed, as further described herein.
- the process fluid flowing through the process fluid passageway may have a measurable pressure, temperature, and/or mass flow rate.
- the piping 130 including the lines or conduits thereof, may be configured to accommodate the process fluids and/or one or more properties (e.g ., pressure, temperature, and/or mass flow rate) of the process fluids flowing therethrough.
- a construction and/or sizing (e.g ., diameter, thickness, composition, etc.) of the conduits may vary and may be determined, at least in part, by the process fluids and or properties thereof flowing therethrough.
- the process fluids pressurized, circulated, contained, or otherwise utilized in the compression system 100 may be in a fluid phase, a gas phase, a supercritical state, a subcritical state, or any combination thereof.
- the compression system 100 may be utilized to compress various process fluids including high molecular weight process fluids, low molecular weight process fluids, or any mixtures or combinations thereof.
- High molecular weight process fluids may include those process fluids having a molecular weight of nitrogen or greater.
- Illustrative high molecular weight process fluids may include, but are not limited to, hydrocarbons, such as ethane, propane, butane, pentane, and hexane.
- High molecular weight process fluids may include, but are not limited to, carbon dioxide (CO 2 ) or mixtures containing carbon dioxide.
- Low molecular weight process fluids may include those process fluids having a molecular weight greater than or equal to hydrogen and less than or equal to nitrogen.
- Illustrative low molecular weight process fluids may include, but are not limited to hydrogen or mixtures containing hydrogen.
- Utilizing carbon dioxide as the process fluid or as part of a mixture of the process fluid in the compression system 100 may provide one or more advantages over other compounds that may be utilized as the process fluid.
- carbon dioxide may provide a readily available, inexpensive, non-toxic, and non-flammable process fluid. Due in part to a relatively high working pressure of carbon dioxide, the compression system 100 incorporating carbon dioxide, or mixtures containing carbon dioxide, may be more compact than other compression systems incorporating other process fluids.
- the high density and high heat capacity or volumetric heat capacity of carbon dioxide with respect to other process fluids may make carbon dioxide more "energy dense," meaning that a size of the compression system 100, and/or components thereof, may be reduced without reducing performance of the compression system 100.
- the carbon dioxide may be of any particular type, source, purity, or grade. For example, industrial grade carbon dioxide may be utilized as the process fluid without departing from the scope of the disclosure.
- the process fluids may be a mixture or process fluid mixture.
- the process fluid mixture may be selected for the unique attributes possessed by the mixture within the compression system 100.
- the process fluid mixture may include a liquid absorbent and carbon dioxide, or a mixture containing carbon dioxide, enabling the mixture to be compressed to a higher pressure with less energy input than required to compress carbon dioxide, or a mixture containing carbon dioxide, alone.
- the piping 130 may include a system inlet 132 configured to provide the process fluids to the compression system 100.
- the process fluids provided to the system inlet 132 may be from one or more external sources (not shown).
- the external sources may include, but are not limited to, a process fluid storage tank, a fluid fill system, a separate system, such as a heat engine system, or any combination thereof.
- the system inlet 132 may be fluidly coupled with an axial inlet 142 of the first compressor 140 and may be configured to provide the process fluids thereto.
- the process fluids may be compressed by the first compressor 140 and discharged via an outlet 144 of the first compressor 140.
- the first compressor 140 may have a compression ratio of about 2.5:1 or greater.
- the compression ratio of the first compressor 140 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater.
- the first compressor 140 may include one or more inlet vanes (e.g ., guide vanes), impellers, diffusers (e.g ., vaned or vaneless), discharge volutes, or any combination thereof.
- one or more inlet vanes may be movably coupled with the first compressor 140 and disposed in or about the axial inlet 142 and/or inlet passageway (not shown) of the first compressor 140.
- the axial inlet 142 and/or the inlet passageway may be defined by a compressor chassis or body (not shown) of the first compressor 140.
- the axial inlet 142 and/or the inlet passageway may be circular or substantially circular and the inlet vanes may be arranged about the circular cross-section of the axial inlet 142 in a spaced apart orientation.
- the impeller may be coupled with or mounted to the rotary shaft 114 extending through the first compressor 140.
- the impeller may be positioned or located downstream of the axial inlet 142 and/or the inlet passageway of the first compressor 140.
- the axial inlet 142 and/or the inlet passageway may be configured to provide a straight or substantially straight flowpath to the impeller.
- the inlet vanes may guide or direct the process fluids flowing through the axial inlet 142 and/or the inlet passageway directly to an inlet of the impeller.
- the diffuser may be defined by the compressor chassis of the first compressor 140 and may include a diffuser passageway extending from a location downstream of the impeller.
- the diffuser may be receive the process fluids from the impeller and may convert kinetic energy of the process fluids from the impeller into increased static pressure.
- the diffuser may include one or more moveable vanes.
- the diffuser may not include any moveable vanes ( e.g . vaneless).
- the discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuser and discharge the process fluids to the outlet 144 of the first compressor 140.
- the outlet 144 of the first compressor 140 may be fluidly coupled with an axial inlet 152 of the second compressor 150 via a first conduit 134 of the piping 130.
- the discharged process fluid, or first compressed process fluid, from the first compressor 140 may be directed to the second compressor 150 via the first conduit 134.
- the first compressed process fluid may be further compressed by the second compressor 150 and discharged via an outlet 154 of the second compressor 150.
- the second compressor 150 may receive the first compressed process fluid from the first compressor 140 and may further compress the first compressed process fluid to provide a second compressed process fluid having to a pressure ratio of about 10:1 or greater. In at least one embodiment, the second compressor 150 may have a compression ratio of about 2.5 or greater.
- the compression ratio of the second compressor 150 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater.
- the second compressor 150 may include one or more inlet vanes (e.g ., guide vanes), impellers, diffusers ( e.g ., vaned or vaneless), discharge volutes, or any combination thereof.
- the arrangement or configuration of the second compressor 150 may be similar to that of the first compressor 140.
- the second compressor 150 may include one or more inlet vanes (not shown) movably coupled with the second compressor 150 and disposed in or about the axial inlet 152 and/or inlet passageway (not shown) of the second compressor 150.
- the impeller (not shown) may be coupled with or mounted to the rotary shaft 116 extending through the second compressor 150 and may be positioned downstream of the axial inlet 152 and/or the inlet passageway of the second compressor 150.
- the diffuser e.g ., vaned or vaneless
- the discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuse r and discharge the process fluids to the outlet 154 of the second compressor 150.
- the compression system 100 including the compressors 140, 150 may have a compression ratio of at least about 10:1 or greater.
- the compression system 100 may compress the process fluid to a pressure ratio from a low of about 10:1, about 10.1:1, about 10.2:1, about 10.3:1, about 10.4:1, about 10.5:1, about 10.6:1, about 10.7:1, about 10.8:1, about 10.9:1, or about 11:1 to a high of about 11.2:1, about 11.3:1, about 11.4:1, about 11.5:1, about 12:1, about 12.5:1, or greater.
- the first compressor 140 may compress the process fluid to provide the first compressed process fluid at a desired pressure ratio
- the second compressor 150 may further compress the first compressed process fluid to provide a second compressed process fluid at a pressure ratio of at least about 10:1 or greater.
- the second compressor 150 may have a compression ratio sufficient to provide the second compressed process fluid at the pressure ratio of at least about 10:1 or greater.
- the first compressor 140 may have a compression ratio of at least about 3.8:1 and may compress the process fluid to provide the first compressed process fluid at a pressure ratio of at least about 3.8:1.
- the second compressor 150 may have a compression ratio of at least about 2.7:1 and may further compress the first compressed process fluid to provide the second compressed process fluid at a pressure ratio of at least about 10:1 or greater.
- the outlet 154 of the second compressor 150 may be fluidly coupled with an inlet 162 of a heat recovery system 160 via a second conduit 136 of the piping 130.
- the discharged process fluid, or second compressed process fluid, from the second compressor 150 may be directed to the heat recovery system 160 via the second conduit 136.
- the second compressed process fluid may contain thermal energy or heat generated from the compression of the process fluid in the first and second compressors 140, 150.
- the heat contained in the second compressed process fluid may be transferred to or captured by the heat recovery system 160, thereby cooling the second compressed process fluid and providing a cooled, compressed process fluid.
- the cooled process fluid from the heat recovery system 160 may be discharged via an outlet 164 of the heat recovery system 160.
- the outlet 164 of the heat recovery system 160 may be fluidly coupled with one or more downstream processing systems and/or components (not shown) via a third conduit 138 of the piping 130.
- the one or more downstream processing systems and/or components may be configured to further process the cooled process fluid.
- the heat recovery system 160 may be any system known in the art capable of capturing and/or recycling heat (e.g ., heat of compression) generated from the compression system 100.
- the heat recovery system 160 may include one or more components and/or heat recovery sections (not shown) capable of absorbing and/or transferring heat from the second compressed process fluid.
- Illustrative components and/or heat recovery sections of the heat recovery system 160 may include, but are not limited to, one or more recuperators, heat exchangers, heat recovery steam generators, or any combination thereof.
- the captured or absorbed heat from the heat recovery system 160 may be directed to one or more downstream processes and/or components via conduit 166 of the piping 130.
- the captured heat may be utilized in various processes known in the art.
- the captured heat may be provided as a waste heat stream in a heat engine system.
- the captured heat may be converted into useful energy by a variety of turbine generators or heat engine systems that may employ thermodynamic methods, such as Rankine cycles. Rankine cycles and similar thermodynamic methods may include steam-based processes that recover and utilize waste heat to generate steam to drive turbines, turbos, or other expanders coupled with electric generators, pumps, or other devices.
- FIG. 2 illustrates a flowchart of a method 200 for compressing a process fluid, accordingly to one or more embodiments.
- the method 200 may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft operatively coupled with the first single-stage compressor and the second single-stage compressor, the drive shaft driven by a driver, as shown at 202.
- the method 200 may also include compressing the process fluid via the first single-stage compressor and second single-stage compressor to provide a compressed process fluid containing heat from the compression thereof and having a pressure ratio of about 10:1 or greater, as shown at 204.
- the method may further include directing the compressed process fluid to a heat recovery system, as shown at 206.
- the method may also include absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system, as shown at 208.
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Description
- Reliable and efficient compression systems have been developed and are utilized in a myriad of industrial processes (e.g., petroleum refineries, offshore oil production platforms, and subsea process control systems). An example of a centrifugal compressor is described in
JP 2012 251529 US 5,857,348 . There is, however, an ever-increasing demand for smaller, lighter, and more compact compression systems. Accordingly, compact motor-compressors that incorporate compressors directly coupled to high-speed electric motors have been developed. Conventional compact motor-compressors may combine a high-speed electric motor with one or more compressors, such as a centrifugal compressor, in a single, hermetically sealed housing. Recently, for conventional compact motor-compressors to be considered economically and commercially viable for various industrial processes, it is desired that the compact motor-compressors achieve higher compression ratios (e.g., 10:1 or greater) while maintaining a compact arrangement. - In view of the foregoing, compact motor-compressors may often attempt to achieve the higher compression ratios by increasing the number of compression stages within the single, hermetically sealed housing. Increasing the number of compression stages, however, increases the overall number of components (e.g., impellers and/or other intricate parts) required to achieve the desired compressor throughput (e.g., mass flow) and pressure rise to achieve the higher compression ratios. Increasing the number of components required in these compact motor-compressors may often increase length requirements for the rotary shaft and/or increase distance requirements between rotary shaft bearings. The imposition of these requirements often results in larger, less compact motor-compressor arrangements as compared to previous compact motor-compressors utilizing fewer compression stages. Further, in many cases, increasing the number of compression stages in the compact motor-compressors may still not provide the desired higher compression ratios or, if the desired compression ratios are achieved, the compact motor-compressors may exhibit decreased efficiencies that make the compact motor-compressors commercially undesirable.
- What is needed, then, is an efficient system and method of compression that provides increased compression ratios in a compact arrangement that is economically and commercially viable.
- Embodiments of the disclosure may provide a compression system. The compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotational energy. The compression system may also include a first single-stage compressor and a second single-stage compressor. The first single-stage compressor and the second single-stage compressor may each include a rotary shaft coupled with or integral with the drive shaft of the driver. The first single-stage compressor and the second single-stage compressor may be configured to compress a high molecular weight process fluid to provide a compressed process fluid having a pressure ratio of about 10:1 or greater. The compressed process fluid may contain heat from the compression thereof. A heat recovery system may be fluidly coupled with the first single-stage compressor and the second single-stage compressor. The heat recovery system may be configured to receive the compressed process fluid and absorb at least a portion of the heat contained in the compressed process fluid.
- Embodiments of the disclosure may further provide another compression system. The compression system may include a driver having a drive shaft extending therethrough and configured to provide the drive shaft with rotation energy. The compression system may also include a first single-stage compressor having a first rotary shaft operatively coupled with a first end of the drive shaft. The first single-stage compressor may have a compression ratio of at least about 3.8:1 and may be configured to compress a process fluid containing carbon dioxide to provide a first compressed process fluid. The compression system may further include a second single-stage compressor having a second rotary shaft operatively coupled with a second end of the drive shaft. The second single-stage compressor may have a compression ratio of at least about 2.7:1 and may be configured to compress the first compressed process fluid to provide a second compressed process fluid. The second compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of at least about 10:1.
- Embodiments of the disclosure may further provide a method for compressing a process fluid. The method may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft. The drive shaft may be operatively coupled with the first single-stage compressor and the second single-stage compressor and may be driven by a driver. The method may also include compressing the process fluid via the first single-stage compressor and the second single-stage compressor to provide a compressed process fluid. The compressed process fluid may contain heat from the compression thereof and may have a pressure ratio of about 10:1 or greater. The method may further include directing the compressed process fluid to a heat recovery system and absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system.
- The present disclosure is best understood from the following detailed description when read with the accompanying Figures. It is emphasized that, in accordance with the standard practice in the industry, various features are not drawn to scale. In fact, the dimensions of the various features may be arbitrarily increased or reduced for clarity of discussion.
-
Figure 1 illustrates a schematic of an exemplary compression system for pressurizing a process fluid, the compression system including a plurality of compressors coupled with a driver, according to one or more embodiments disclosed. -
Figure 2 illustrates a flowchart of a method for compressing a process fluid, accordingly to one or more embodiments disclosed. - It is to be understood that the following disclosure describes several exemplary embodiments for implementing different features, structures, or functions of the invention. Exemplary embodiments of components, arrangements, and configurations are described below to simplify the present disclosure; however, these exemplary embodiments are provided merely as examples and are not intended to limit the scope of the invention. Additionally, the present disclosure may repeat reference numerals and/or letters in the various exemplary embodiments and across the Figures provided herein. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various exemplary embodiments and/or configurations discussed in the various Figures. Moreover, the formation of a first feature over or on a second feature in the description that follows may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features may be formed interposing the first and second features, such that the first and second features may not be in direct contact. Finally, the exemplary embodiments presented below may be combined in any combination of ways, i.e., any element from one exemplary embodiment may be used in any other exemplary embodiment, without departing from the scope of the disclosure.
- Additionally, certain terms are used throughout the following description and claims to refer to particular components. As one skilled in the art will appreciate, various entities may refer to the same component by different names, and as such, the naming convention for the elements described herein is not intended to limit the scope of the invention, unless otherwise specifically defined herein. Further, the naming convention used herein is not intended to distinguish between components that differ in name but not function. Additionally, in the following discussion and in the claims, the terms "including" and "comprising" are used in an open-ended fashion, and thus should be interpreted to mean "including, but not limited to." All numerical values in this disclosure may be exact or approximate values unless otherwise specifically stated. Accordingly, various embodiments of the disclosure may deviate from the numbers, values, and ranges disclosed herein without departing from the intended scope. Furthermore, as it is used in the claims or specification, the term "or" is intended to encompass both exclusive and inclusive cases, i.e., "A or B" is intended to be synonymous with "at least one of A and B," unless otherwise expressly specified herein.
-
Figure 1 illustrates a schematic of anexemplary compression system 100 for pressurizing a process fluid, thecompression system 100 including a plurality ofcompressors driver 102, according to one or more embodiments. Thecompressors compressors - As illustrated in
Figure 1 , each of thecompressors rotary shaft drive shaft 108 of thedriver 102. Each of thecompressors driver 102 at opposing ends of thedrive shaft 108 in a "double-ended" configuration or arrangement. For example, arotary shaft 114 of afirst compressor 140 may extend therefrom and may be coupled with afirst end 104 of thedrive shaft 108, and arotary shaft 116 of asecond compressor 150 may extend therefrom and may be coupled with asecond end 106 thedrive shaft 108. In at least one embodiment, therotary shafts first compressor 140 and/or thesecond compressor 150 may be coupled with thedrive shaft 108 via one or more gears (not shown). The one or more gears coupling therotary shafts first compressor 140 and/or thesecond compressor 150 with thedrive shaft 108 may allow therotary shafts drive shaft 108. In another embodiment, therotary shafts first compressor 140 and/or thesecond compressor 150 may be integral with thedrive shaft 108 of thedriver 102. Thedriver 102 may drive the first andsecond compressors drive shaft 108, thereby rotating therotary shafts drive shaft 108 may include a single segment or multiple segments (not shown) coupled with one another via one or more gears (not shown). The one or more gears coupling the multiple segments of thedrive shaft 108 may allow a first segment of thedrive shaft 108 to spin at a faster or slower rate than a second segment of thedrive shaft 108. - The
driver 102 may be an electric motor, such as a permanent magnet motor, and may include a stator (not shown) and a rotor (not shown). It may be appreciated, however, that other embodiments may employ other types of electric motors including, but not limited to, synchronous motors, induction motors, brushed DC motors, or the like. Thedriver 102 may also be a hydraulic motor, an internal combustion engine, a gas turbine, or any other device capable of driving therotary shafts second compressors - As illustrated in
Figure 1 , thecompressors driver 102. For example, thefirst compressor 140 may be positioned or located along therotary shaft 114 such that thefirst compressor 140 may not include additional bearings on the upstream (e.g., left, as illustrated inFigure 1 ) side of therotary shaft 114. Similarly, thesecond compressor 150 may be positioned or located along therotary shaft 116 such that thesecond compressor 150 may not include additional bearings on the downstream (e.g., right, as illustrated inFigure 1 ) side of therotary shaft 116. In another embodiment, however, at least one of thecompressors rotary shaft - The
compressors piping 130. The piping 130 may be formed from a plurality of pipes, commonly referred to as lines or conduits, configured to fluidly couple thecompressors compressors compressors compressors - In at least one embodiment, the process fluids pressurized, circulated, contained, or otherwise utilized in the
compression system 100 may be in a fluid phase, a gas phase, a supercritical state, a subcritical state, or any combination thereof. In at least one embodiment, thecompression system 100 may be utilized to compress various process fluids including high molecular weight process fluids, low molecular weight process fluids, or any mixtures or combinations thereof. High molecular weight process fluids may include those process fluids having a molecular weight of nitrogen or greater. Illustrative high molecular weight process fluids may include, but are not limited to, hydrocarbons, such as ethane, propane, butane, pentane, and hexane. Other high molecular weight process fluids may include, but are not limited to, carbon dioxide (CO2) or mixtures containing carbon dioxide. Low molecular weight process fluids may include those process fluids having a molecular weight greater than or equal to hydrogen and less than or equal to nitrogen. Illustrative low molecular weight process fluids may include, but are not limited to hydrogen or mixtures containing hydrogen. - Utilizing carbon dioxide as the process fluid or as part of a mixture of the process fluid in the
compression system 100 may provide one or more advantages over other compounds that may be utilized as the process fluid. For example, carbon dioxide may provide a readily available, inexpensive, non-toxic, and non-flammable process fluid. Due in part to a relatively high working pressure of carbon dioxide, thecompression system 100 incorporating carbon dioxide, or mixtures containing carbon dioxide, may be more compact than other compression systems incorporating other process fluids. The high density and high heat capacity or volumetric heat capacity of carbon dioxide with respect to other process fluids may make carbon dioxide more "energy dense," meaning that a size of thecompression system 100, and/or components thereof, may be reduced without reducing performance of thecompression system 100. The carbon dioxide may be of any particular type, source, purity, or grade. For example, industrial grade carbon dioxide may be utilized as the process fluid without departing from the scope of the disclosure. - As previously discussed, the process fluids may be a mixture or process fluid mixture. The process fluid mixture may be selected for the unique attributes possessed by the mixture within the
compression system 100. For example, the process fluid mixture may include a liquid absorbent and carbon dioxide, or a mixture containing carbon dioxide, enabling the mixture to be compressed to a higher pressure with less energy input than required to compress carbon dioxide, or a mixture containing carbon dioxide, alone. - As shown in
Figure 1 , the piping 130 may include asystem inlet 132 configured to provide the process fluids to thecompression system 100. The process fluids provided to thesystem inlet 132 may be from one or more external sources (not shown). The external sources may include, but are not limited to, a process fluid storage tank, a fluid fill system, a separate system, such as a heat engine system, or any combination thereof. Thesystem inlet 132 may be fluidly coupled with anaxial inlet 142 of thefirst compressor 140 and may be configured to provide the process fluids thereto. The process fluids may be compressed by thefirst compressor 140 and discharged via anoutlet 144 of thefirst compressor 140. In at least one embodiment, thefirst compressor 140 may have a compression ratio of about 2.5:1 or greater. For example, the compression ratio of thefirst compressor 140 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater. - To achieve the compression ratio, the
first compressor 140 may include one or more inlet vanes (e.g., guide vanes), impellers, diffusers (e.g., vaned or vaneless), discharge volutes, or any combination thereof. For example, in at least one embodiment, one or more inlet vanes (not shown) may be movably coupled with thefirst compressor 140 and disposed in or about theaxial inlet 142 and/or inlet passageway (not shown) of thefirst compressor 140. Theaxial inlet 142 and/or the inlet passageway may be defined by a compressor chassis or body (not shown) of thefirst compressor 140. In at least one embodiment, theaxial inlet 142 and/or the inlet passageway may be circular or substantially circular and the inlet vanes may be arranged about the circular cross-section of theaxial inlet 142 in a spaced apart orientation. The impeller may be coupled with or mounted to therotary shaft 114 extending through thefirst compressor 140. The impeller may be positioned or located downstream of theaxial inlet 142 and/or the inlet passageway of thefirst compressor 140. Theaxial inlet 142 and/or the inlet passageway may be configured to provide a straight or substantially straight flowpath to the impeller. The inlet vanes may guide or direct the process fluids flowing through theaxial inlet 142 and/or the inlet passageway directly to an inlet of the impeller. - In at least one embodiment, the diffuser may be defined by the compressor chassis of the
first compressor 140 and may include a diffuser passageway extending from a location downstream of the impeller. The diffuser may be receive the process fluids from the impeller and may convert kinetic energy of the process fluids from the impeller into increased static pressure. In at least one embodiment, the diffuser may include one or more moveable vanes. Alternatively, the diffuser may not include any moveable vanes (e.g. vaneless). The discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuser and discharge the process fluids to theoutlet 144 of thefirst compressor 140. - The
outlet 144 of thefirst compressor 140 may be fluidly coupled with anaxial inlet 152 of thesecond compressor 150 via afirst conduit 134 of thepiping 130. The discharged process fluid, or first compressed process fluid, from thefirst compressor 140 may be directed to thesecond compressor 150 via thefirst conduit 134. The first compressed process fluid may be further compressed by thesecond compressor 150 and discharged via anoutlet 154 of thesecond compressor 150. Thesecond compressor 150 may receive the first compressed process fluid from thefirst compressor 140 and may further compress the first compressed process fluid to provide a second compressed process fluid having to a pressure ratio of about 10:1 or greater. In at least one embodiment, thesecond compressor 150 may have a compression ratio of about 2.5 or greater. For example, the compression ratio of thesecond compressor 150 may be from a low of about 2.5:1, about 2.6:1, about 2.7:1, about 2.8:1, about 2.9:1, about 3.0:1, about 3.1:1, about 3.2:1, about 3.3:1, about 3.4:1, about 3.5:1, about 3.6:1, about 3.7:1, about 3.8:1, about 3.9:1, or about 4:1 to a high of about 4.1:1, about 4.2:1, about 4.3:1, about 4.4:1, about 4.5:1, about 5:1, or greater. - To achieve the compression ratio, the
second compressor 150, similar to thefirst compressor 140, may include one or more inlet vanes (e.g., guide vanes), impellers, diffusers (e.g., vaned or vaneless), discharge volutes, or any combination thereof. The arrangement or configuration of thesecond compressor 150 may be similar to that of thefirst compressor 140. For example, thesecond compressor 150 may include one or more inlet vanes (not shown) movably coupled with thesecond compressor 150 and disposed in or about theaxial inlet 152 and/or inlet passageway (not shown) of thesecond compressor 150. The impeller (not shown) may be coupled with or mounted to therotary shaft 116 extending through thesecond compressor 150 and may be positioned downstream of theaxial inlet 152 and/or the inlet passageway of thesecond compressor 150. The diffuser (e.g., vaned or vaneless) may be defined by the compressor chassis of thesecond compressor 150 and may include a diffuser passageway extending from a location downstream of the impeller. The discharge volute may be positioned downstream of the diffuser and configured to collect the process fluids from the diffuse r and discharge the process fluids to theoutlet 154 of thesecond compressor 150. - The
compression system 100 including thecompressors compression system 100 may compress the process fluid to a pressure ratio from a low of about 10:1, about 10.1:1, about 10.2:1, about 10.3:1, about 10.4:1, about 10.5:1, about 10.6:1, about 10.7:1, about 10.8:1, about 10.9:1, or about 11:1 to a high of about 11.2:1, about 11.3:1, about 11.4:1, about 11.5:1, about 12:1, about 12.5:1, or greater. In at least one embodiment, thefirst compressor 140 may compress the process fluid to provide the first compressed process fluid at a desired pressure ratio, and thesecond compressor 150 may further compress the first compressed process fluid to provide a second compressed process fluid at a pressure ratio of at least about 10:1 or greater. Thesecond compressor 150 may have a compression ratio sufficient to provide the second compressed process fluid at the pressure ratio of at least about 10:1 or greater. For example, thefirst compressor 140 may have a compression ratio of at least about 3.8:1 and may compress the process fluid to provide the first compressed process fluid at a pressure ratio of at least about 3.8:1. Thesecond compressor 150 may have a compression ratio of at least about 2.7:1 and may further compress the first compressed process fluid to provide the second compressed process fluid at a pressure ratio of at least about 10:1 or greater. - The
outlet 154 of thesecond compressor 150 may be fluidly coupled with aninlet 162 of aheat recovery system 160 via asecond conduit 136 of thepiping 130. The discharged process fluid, or second compressed process fluid, from thesecond compressor 150 may be directed to theheat recovery system 160 via thesecond conduit 136. The second compressed process fluid may contain thermal energy or heat generated from the compression of the process fluid in the first andsecond compressors heat recovery system 160, thereby cooling the second compressed process fluid and providing a cooled, compressed process fluid. The cooled process fluid from theheat recovery system 160 may be discharged via anoutlet 164 of theheat recovery system 160. Theoutlet 164 of theheat recovery system 160 may be fluidly coupled with one or more downstream processing systems and/or components (not shown) via athird conduit 138 of thepiping 130. The one or more downstream processing systems and/or components may be configured to further process the cooled process fluid. - The
heat recovery system 160 may be any system known in the art capable of capturing and/or recycling heat (e.g., heat of compression) generated from thecompression system 100. For example, theheat recovery system 160 may include one or more components and/or heat recovery sections (not shown) capable of absorbing and/or transferring heat from the second compressed process fluid. Illustrative components and/or heat recovery sections of theheat recovery system 160 may include, but are not limited to, one or more recuperators, heat exchangers, heat recovery steam generators, or any combination thereof. - The captured or absorbed heat from the
heat recovery system 160 may be directed to one or more downstream processes and/or components viaconduit 166 of thepiping 130. The captured heat may be utilized in various processes known in the art. For example, the captured heat may be provided as a waste heat stream in a heat engine system. The captured heat may be converted into useful energy by a variety of turbine generators or heat engine systems that may employ thermodynamic methods, such as Rankine cycles. Rankine cycles and similar thermodynamic methods may include steam-based processes that recover and utilize waste heat to generate steam to drive turbines, turbos, or other expanders coupled with electric generators, pumps, or other devices. -
Figure 2 illustrates a flowchart of amethod 200 for compressing a process fluid, accordingly to one or more embodiments. Themethod 200 may include driving a first single-stage compressor and a second single-stage compressor via a drive shaft operatively coupled with the first single-stage compressor and the second single-stage compressor, the drive shaft driven by a driver, as shown at 202. Themethod 200 may also include compressing the process fluid via the first single-stage compressor and second single-stage compressor to provide a compressed process fluid containing heat from the compression thereof and having a pressure ratio of about 10:1 or greater, as shown at 204. The method may further include directing the compressed process fluid to a heat recovery system, as shown at 206. The method may also include absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system, as shown at 208. - The foregoing has outlined features of several embodiments so that those skilled in the art may better understand the present disclosure.
Claims (13)
- A compression system, comprising:a driver (102) comprising a drive shaft (108) extending therethrough, the driver (102) configured to provide the drive shaft (108) with rotational energy;a first single-stage compressor (140) and a second single-stage compressor (150), each comprising a rotary shaft (114, 116) coupled with or integral with the drive shaft (108), characterized in that the first single-stage compressor (140) and the second single-stage compressor (150) are configured to compress a high molecular weight process fluid and to provide a compressed process fluid having a pressure ratio of about 10:1 or greater, the compressed process fluid containing heat from the compression thereof; and in that a heat recovery system (160) is fluidly coupled with the first single-stage compressor (140) and the second single-stage compressor (150) and configured to receive the compressed process fluid therefrom and absorb at least a portion of the heat contained in the compressed process fluid, and wherein the first single-stage compressor (140) has a compression ratio of at least about 3.8:1 and is operatively coupled with a first end (104) of the drive shaft (108) and configured to compress the high molecular weight process fluid to provide a first compressed process fluid.
- The compression system of claim 1, wherein the second single-stage compressor (150) has a compression ratio of at least about 2.7:1 and is operatively coupled with a second end (106) of the drive shaft (108) and configured to compress the first compressed process fluid from the first single-stage compressor (140) to provide the compressed process fluid.
- The compression system of claim 1, wherein the first single-stage compressor (140) and the second single-stage compressor (150) are overhung at opposing ends of the drive shaft (108) in a double-ended configuration.
- The compression system of claim 1, wherein an inlet (142) of the first single-stage compressor (140) is fluidly coupled with a system inlet (132), the system inlet (132) configured to provide the high molecular weight process fluid to the first single-stage compressor (140) from an external source.
- The compression system of claim 1, wherein the first single-stage compressor (140) and the second single-stage compressor (150) are axial-inlet centrifugal compressors.
- The compression system of claim 1, wherein each of the first single-stage compressor (140) and the second single-stage compressor (150) further comprises:an axial inlet (142, 152) configured to receive the process fluid;an impeller operatively coupled with the drive shaft (108) and positioned downstream the axial inlet (142, 152);an inlet vane movably coupled with the axial inlet (142, 152) and configured to guide the process fluid to the impeller;a diffuser positioned downstream from the impeller and configured to receive the process fluid from the impeller; anda discharge volute positioned downstream the diffuser and configured to collect the process fluid from the diffuser and discharge the process fluid via an outlet (144, 154).
- The compression system of claim 7, wherein the diffuser comprises a moveable vane.
- A method for compressing a process fluid, comprising:driving a first single-stage compressor (140) and a second single-stage compressor (150) via a drive shaft (108) operatively coupled with the first single-stage compressor (140) and the second single-stage compressor (150), the drive shaft (108) driven by a driver (102);compressing the process fluid via the first single-stage compressor (140) and the second single-stage compressor (150) to provide a compressed process fluid containing heat from the compression thereof and having a pressure ratio of about 10:1 or greater;directing the compressed process fluid to a heat recovery system (160);absorbing at least a portion of the heat contained in the compressed process fluid in the heat recovery system (160); and compressing the process fluid via the first single-stage compressor (140) to provide a first compressed process fluid having a pressure ratio of at least about 3.8:1.
- The method of claim 8, further comprising feeding the process fluid to the first single-stage compressor (140) from an external source.
- The method of claim 8, further comprising:directing the first compressed process fluid from the first single-stage compressor (140) to the second single-stage compressor (150) via piping (130); andcompressing the first compressed process fluid via the second single-stage compressor (150) to provide the compressed process fluid having a pressure ratio of about 10:1 or greater.
- The method of claim 8, wherein the first single-stage compressor (140) and the second single-stage compressor (150) are overhung at opposing ends of the drive shaft (108) in a double-ended configuration.
- The method of claim 8, wherein the first single-stage compressor (140) and the second single-stage compressor (150) are axial-inlet centrifugal compressors.
- The method of claim 8, wherein each of the first single-stage compressor (140) and the second single-stage compressor (150) comprises:an axial inlet (142, 152) configured to receive the process fluid;a rotary shaft (114, 116) coupled with or integral with the drive shaft (108);an impeller coupled with the rotary shaft (114, 116) and positioned downstream the axial inlet (142, 152);an inlet vane movably coupled with the axial inlet (142, 152) and configured to guide the process fluid to the impeller;a diffuser positioned downstream from the impeller and configured to receive the process fluid from the impeller; anda discharge volute positioned downstream the diffuser and configured to collect the process fluid from the diffuser and discharge the process fluid via an outlet (144, 154).
Applications Claiming Priority (2)
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US201361809503P | 2013-04-08 | 2013-04-08 | |
PCT/US2014/033130 WO2014168855A1 (en) | 2013-04-08 | 2014-04-07 | System and method for compressing carbon dioxide |
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EP2984344A1 EP2984344A1 (en) | 2016-02-17 |
EP2984344A4 EP2984344A4 (en) | 2017-01-11 |
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GB2576565B (en) | 2018-08-24 | 2021-07-14 | Rolls Royce Plc | Supercritical carbon dioxide compressor |
GB201813819D0 (en) | 2018-08-24 | 2018-10-10 | Rolls Royce Plc | Turbomachinery |
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Publication number | Priority date | Publication date | Assignee | Title |
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FR2553835B1 (en) * | 1983-10-25 | 1986-02-28 | Bertin & Cie | FLUID COMPRESSION MACHINE WITH MULTIPLE SERIES COMPRESSION STAGES |
IL109967A (en) | 1993-06-15 | 1997-07-13 | Multistack Int Ltd | Compressor |
KR20020024933A (en) * | 2000-09-27 | 2002-04-03 | 구자홍 | Turbine compressor structure with Impeller |
US20040247461A1 (en) * | 2001-11-08 | 2004-12-09 | Frank Pflueger | Two stage electrically powered compressor |
JP2004301075A (en) * | 2003-03-31 | 2004-10-28 | Sanyo Electric Co Ltd | Semi-hermetic multistage compressor |
US20070189905A1 (en) * | 2006-02-13 | 2007-08-16 | Ingersoll-Rand Company | Multi-stage compression system and method of operating the same |
CH697852B1 (en) * | 2007-10-17 | 2009-02-27 | Eneftech Innovation Sa | compression spiral device or expansion. |
KR101788023B1 (en) * | 2010-03-17 | 2017-11-15 | 이노베이티브 디자인 테크놀로지 피티와이 리미티드 | A centrifugal compressor |
US9062690B2 (en) * | 2010-11-30 | 2015-06-23 | General Electric Company | Carbon dioxide compression systems |
JP2012251529A (en) * | 2011-06-07 | 2012-12-20 | Daikin Industries Ltd | Centrifugal compressor |
-
2014
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