CN106554831A - A kind of methane purification and the equipment and technique of carbon dioxide synchronization methanation conversion - Google Patents
A kind of methane purification and the equipment and technique of carbon dioxide synchronization methanation conversion Download PDFInfo
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- CN106554831A CN106554831A CN201610985827.1A CN201610985827A CN106554831A CN 106554831 A CN106554831 A CN 106554831A CN 201610985827 A CN201610985827 A CN 201610985827A CN 106554831 A CN106554831 A CN 106554831A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/08—Production of synthetic natural gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/103—Sulfur containing contaminants
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/102—Removal of contaminants of acid contaminants
- C10L3/104—Carbon dioxide
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
- C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
- C10L3/10—Working-up natural gas or synthetic natural gas
- C10L3/101—Removal of contaminants
- C10L3/106—Removal of contaminants of water
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/08—Drying or removing water
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/54—Specific separation steps for separating fractions, components or impurities during preparation or upgrading of a fuel
- C10L2290/548—Membrane- or permeation-treatment for separating fractions, components or impurities during preparation or upgrading of a fuel
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- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention provides the equipment and technique of a kind of methane purification and carbon dioxide synchronization methanation conversion, belongs to biomass economy and carbon emission reduction field.The equipment includes desulfurizer, surge tank, compressor, cooling driers, membrane module, preheating device, methanation device and heat-exchanger rig, original thick biogas is extracted using the equipment, successively through desulfurizer, after surge tank and compressor, it is dehydrated into cooling driers, biogas after dehydration is separated into membrane module, it is separated into methane and carbon dioxide, wherein carbon dioxide part is after preheating, into methanation device system, it is partially converted into methane, surge tank is returned to after the cooling that exchanges heat to mix with former biogas, the product gas methane purity for finally giving reaches 97%.All biogas are completely converted into methane product by the technique and equipment of the present invention, realize the complete utilization of carbon resource, while realizing emission-free discharge, greenhouse gases near-zero release.
Description
Technical field
The present invention relates to biomass economy and carbon emission reduction field, particularly relate to a kind of methane purification and the same ground beetle of carbon dioxide
The equipment and technique of alkanisation conversion.
Background technology
The world today is faced with a large amount of carbon emissions that the energy and environment dual-pressure, particularly fossil energy consumption are brought,
Result in many global harm such as greenhouse effect, atmospheric pollution.Seek it is new, safety, reliable, cleaning, can hold
Continuous energy resource system becomes very urgent.Biogas, has as a kind of new renewable bioenergy compared with other energy
The characteristics of resource is readily available net discharge negative with greenhouse gases, is the green energy resource of a kind of " zero carbon emission ", it has also become New Energy
Source substitutes the important selection with carbon emission reduction.Modern biogas technology is by purification ＆ isolation, conversion CO2It is high heating value by marsh gas purifying
Biological methane (CH4), reach the quality of automobile-used or pipe natural gas, Substitute coal, oil and natural gas be used for modern industry and
Social development, is the domestic and international major trend that biogas development is utilized at present.
The Main Ingredients and Appearance of biogas is 50--70% methane (CH4), 30--50% carbon dioxide (CO2) and a small amount of hydrogen sulfide
(H2S), water (H2O), nitrogen (N2), hydrogen (H2), oxygen (O2), ammonia (NH3) and the gas such as carbon monoxide (CO).Current methane purification mode
Mainly there are physical absorption process, PSA techniques, chemical absorption process, membrane separation process and methanation etc., wherein physics/change
Absorption process is learned using solvent to absorb the CO in biogas2, to purify methane；And PSA techniques and embrane method are utilized respectively selection absorption
Property and selective penetrated property, separate mixing gas component.Above methane purification technology is each advantageous and develops more maturation, but
There is more drawback and the adverse effect to environment.Be present the discharge of waste water or waste liquid in Physical Absorption and chemical absorbing, undoubtedly increase
Big economy and Environmental costs；Pressure-variable adsorption and embrane method need multiple stage separation, equipment cost to obtain highly purified methane gas
High and energy consumption increases.In addition, above method of purification does not account for CO2Problem of outlet, typically by CO2And it is a small amount of remaining
Methane is directly discharged into air, and the impact to greenhouse effect should not be underestimated.Therefore, how to make full use of the CO being separated2, subtract
Few carbon emission amount and other adverse effects to environment, the research and development of correlation technique are extremely urgent.
Methanation is a kind of biogas technique that tail gas in purification process is solved the problems, such as using Sabatier reactions, i.e.,：CO2
Jing input high-energy and provide after electron donor activated, add active reducing agent H2, there is methanation reaction, such as formula
(1)。
CO2(g)+4H2(g)—→CH4(g)+2H2O (g) Δ rHm (298.15K)=- 164.9kJ/mol (1)
Generally fire dampization needs to reach higher CO2Conversion ratio can meet modern industry application requirement.But first
The combination of alkylation method and embrane method, two kinds of techniques can form complementation, the tail gas that methanation reaction device process film is separated, so as to
Reduce the series of membrane module；The CO that membrane module is produced to methanation simultaneously2It is remaining to form closed cycle, methanation is enable lower
Pressure, temperature and relatively low CO2Run under conversion ratio, reduce the energy consumption and equipment cost of methanation.The technology has
Efficient utilization, greenhouse gases near-zero release to carbon, many advantages, such as environmental hazard is little.
The content of the invention
The technical problem to be solved in the present invention be to provide a kind of methane purification and carbon dioxide synchronization methanation conversion set
Standby and technique.
The equipment include desulfurizer, surge tank, compressor, cooling driers, membrane module, preheating device, methanation device and
One end of heat-exchanger rig, wherein desulfurizer is connected with one end of surge tank, and the other end of surge tank is dry with cold by compressor
One end connection of machine, the cooling driers other end are connected with membrane module entrance, and membrane module oozes vent outlet through preheating device and methane
Connection is put in makeup, and methanation device is connected with surge tank by heat-exchanger rig.
Wherein, membrane module series is one-level or two grades, and membrane module material is polyimides, CO2/CH4Selectivity is 50, is held
Pressure<2.5MPa.
Desulfurizer exit gas, it is desirable to H2S<10ppM；As outlet H2S reaches 10ppM and Sulfur capacity not yet reaches 30%, then
The regeneration of desulfurizing agent should be carried out.
Carbon dioxide in preheating device is preheated to 160 DEG C, preheats the hot gas that thermal source comes from methanation device outlet
The heat for discharging.
Cooling driers outlet gas pressure dew point reaches 5 DEG C.
Heat-exchanger rig transfers heat to preheating device, first paragraph heat conduction stream in three-segment type heat exchange mode by heat-conducting fluid
60 DEG C of temperature, 120 DEG C of second segment heat-conducting fluid temperature, 200 DEG C of the 3rd section of heat-conducting fluid temperature.
Methanation device adopts three sections of temperature controls, pressure<10MPa, reaction temperature<500 DEG C, reactor material rustless steel is adopted
With N159 type catalyst.
Methanation device includes body of heater, Catalytic Layer, entrance, outlet, reaction tube and intermediate layer, and entrance is located at methanation device
Top, positioned at methanation device bottom, reaction tube is located at body of heater center for outlet, and reaction tube top arranges Catalytic Layer, intermediate layer bag
It is rolled in outside reaction tube.
It is as follows using the methane purification and the technique of carbon dioxide synchronization methanation converting apparatus, including step：
(1) pretreatment：Thick biogas sloughs the compositions such as hydrogen sulfide, coarse granule through desulfurizer, after mixing with recyclegas
Surge tank is entered jointly, through compressor boost to 1.0-1.6MPa, moisture removal is removed through cooling driers, obtain methane and titanium dioxide
The mixed gas of carbon；
(2) methane separation：By separation of the membrane module to methane and carbon dioxide, carbon dioxide penetrates film and enters infiltration
Gas component, and methane is rejected by becoming retained gas component；
(3) methanation conversion and heat exchange：Infiltration gas into methanation device, is being catalyzed after pre-heater apparatus preheating
There is methanation reaction in the presence of agent with hydrogen, more than 60% carbon dioxide conversion is methane；Methanation device is exported
High-temperature gas mixture body, after the heat exchange of heat-exchanger rig, gas temperature is reduced, and is mixed into surge tank with biogas, is continued
Participate in operation.
The above-mentioned technical proposal of the present invention has the beneficial effect that：
The present invention adopts physics and chemical method, and methanation device is connected with membrane module, forms CO2What is converted loops back
Road, it is ensured that all key components of biogas are converted into bio-natural gas, no waste gas discharge realizes greenhouse gases near-zero release,
Solve and present in existing purifying technique, there is high cost, high energy consumption, greenhouse gas emission and to environment other are unfavorable
Affect etc..
Description of the drawings
Fig. 1 is the device relationships schematic diagram of the methane purification and carbon dioxide synchronization methanation conversion of the present invention；
Fig. 2 is methanation device structural representation in the present invention.
Wherein：1- desulfurizers；2- surge tanks；3- compressors；4- cooling driers；5- membrane modules；6- preheating devices；7- methane
Makeup is put；8- heat-exchanger rigs；71- bodies of heater；72- Catalytic Layers；73- entrances；74- is exported；75- reaction tubes；76- intermediate layers.
Specific embodiment
To make the technical problem to be solved in the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and tool
Body embodiment is described in detail.
The present invention provides the equipment and technique of a kind of methane purification and carbon dioxide synchronization methanation conversion.As shown in figure 1,
In the equipment, one end of desulfurizer 1 is connected with one end of surge tank 2, and the other end of surge tank 2 passes through compressor 3 and cooling driers
4 one end connection, the other end of cooling driers 4 is connected with 5 entrance of membrane module, membrane module 5 ooze vent outlet through preheating device 6 and
Methanation device 7 connects, and methanation device 7 is connected with surge tank 2 by heat-exchanger rig 8.
Wherein, 5 series of membrane module is one-level or two grades, and membrane module material is polyimides, CO2/CH4Selectivity is 50, is held
Pressure<2.5MPa.
1 exit gas of desulfurizer, it is desirable to H2S<10ppM；As outlet H2S reaches 10ppM and Sulfur capacity not yet reaches 30%,
The regeneration of desulfurizing agent should then be carried out.
Carbon dioxide in preheating device 6 is preheated to 160 DEG C, preheats the steam that thermal source comes from the outlet of methanation device 7
The heat that body is discharged.
4 outlet gas pressure dew point of cooling driers reaches 5 DEG C.
Heat-exchanger rig 8 transfers heat to preheating device 6, first paragraph heat conduction in three-segment type heat exchange mode by heat-conducting fluid
60 DEG C of fluid temperature (F.T.), 120 DEG C of second segment heat-conducting fluid temperature, 200 DEG C of the 3rd section of heat-conducting fluid temperature.
Methanation device 7 adopts three sections of temperature controls, pressure<10MPa, reaction temperature<500 DEG C, reactor material rustless steel is adopted
With N159 type catalyst.
As shown in Fig. 2 methanation device 7 includes body of heater 71, Catalytic Layer 72, entrance 73, outlet 74, reaction tube 75 and centre
Layer 76, entrance 73 are located at 7 top of methanation device, and outlet 74 is located at 7 bottom of methanation device, and reaction tube 75 is located in body of heater 71
The heart, 75 top of reaction tube arrange Catalytic Layer 72, and intermediate layer 76 is wrapped in outside reaction tube 75.
The technique of methane purification and carbon dioxide synchronization methanation conversion is carried out using the said equipment, is comprised the following steps that：
(1) pretreatment：Thick biogas sloughs hydrogen sulfide, coarse granule through desulfurizer 1, common after mixing with recyclegas
Into surge tank 2,1.0-1.6MPa is pressurized to through compressor 3, removes moisture removal through cooling driers 4, obtain methane and titanium dioxide
The mixed gas of carbon；
(2) methane separation：By separation of the membrane module 5 to methane and carbon dioxide, carbon dioxide penetrates film and enters infiltration
Gas component, and methane is rejected by becoming retained gas component；
(3) methanation conversion and heat exchange：Infiltration gas into methanation device 7, is being urged after the preheating of pre-heater apparatus 6
There is methanation reaction in the presence of agent with hydrogen, more than 60% carbon dioxide conversion is methane；Methanation device 7 is exported
74 high-temperature gas mixture body, after the heat exchange of heat-exchanger rig 8, gas temperature is reduced, and is mixed into surge tank 2 with biogas,
Continue to participate in operation.
Thick biogas is completely converted into methane product (CH through methane purification and carbon dioxide synchronization conversion process, all carbon4
Purity>97%), can serve as automobile-used or input natural gas line etc..
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of without departing from principle of the present invention, some improvements and modifications can also be made, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (5)
1. the equipment that a kind of methane purification and carbon dioxide synchronization methanation are converted, it is characterised in that：Including desulfurizer (1),
Surge tank (2), compressor (3), cooling driers (4), membrane module (5), preheating device (6), methanation device (7) and heat-exchanger rig
(8), wherein one end of desulfurizer (1) is connected with one end of surge tank (2), and the other end of surge tank (2) passes through compressor (3)
It is connected with one end of cooling driers (4), the other end of cooling driers (4) is connected with membrane module (5) entrance, membrane module (5) infiltration gas goes out
Mouth is connected with methanation device (7) through preheating device (6), and methanation device (7) is by heat-exchanger rig (8) and surge tank (2)
Connection.
2. the equipment that methane purification according to claim 1 and carbon dioxide synchronization methanation are converted, it is characterised in that：Institute
Membrane module (5) series is stated for one-level or two grades.
3. the equipment that methane purification according to claim 1 and carbon dioxide synchronization methanation are converted, it is characterised in that：Institute
State the carbon dioxide in preheating device (6) and be preheated to 160 DEG C, preheating thermal source comes from the hot gas that methanation device (7) is exported
The heat for discharging.
4. the equipment that methane purification according to claim 1 and carbon dioxide synchronization methanation are converted, it is characterised in that：Institute
Methanation device (7) is stated including body of heater (71), Catalytic Layer (72), entrance (73), outlet (74), reaction tube (75) and intermediate layer
(76), positioned at methanation device (7) top, outlet (74) is positioned at methanation device (7) bottom, reaction tube (75) position for entrance (73)
In body of heater (71) center, reaction tube (75) top arranges Catalytic Layer (72), and it is outside that intermediate layer (76) are wrapped in reaction tube (75).
5., using the technique of the methane purification and carbon dioxide synchronization methanation converting apparatus described in claim 1, its feature exists
In：It is as follows including step：
(1) pretreatment：Thick biogas sloughs hydrogen sulfide, coarse granule through desulfurizer (1), enters after mixing with recyclegas jointly
Enter surge tank (2), 1.0-1.6MPa is pressurized to through compressor (3), remove moisture removal through cooling driers (4), obtain methane and two
The mixed gas of carbonoxide；
(2) methane separation：By separation of the membrane module (5) to methane and carbon dioxide, carbon dioxide penetrates film and enters infiltration gas
Component, and methane is rejected by becoming retained gas component；
(3) methanation conversion and heat exchange：Infiltration gas into methanation device (7), is being urged after pre-heater apparatus (6) preheating
There is methanation reaction in the presence of agent with hydrogen, more than 60% carbon dioxide conversion is methane；Methanation device (7) goes out
The high-temperature gas mixture body of mouthful (74), after the heat exchange of heat-exchanger rig (8), gas temperature is reduced, into surge tank (2) with
Biogas mixes, and continues to participate in operation.
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| CN201610985827.1A CN106554831B (en) | 2016-11-09 | 2016-11-09 | Equipment and process for purifying methane and synchronously methanation-transforming carbon dioxide |
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| CN201610985827.1A CN106554831B (en) | 2016-11-09 | 2016-11-09 | Equipment and process for purifying methane and synchronously methanation-transforming carbon dioxide |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106995735A (en) * | 2017-05-03 | 2017-08-01 | 江苏天楹环保能源成套设备有限公司 | A kind of disposal system of landfill gas or biogas |
| CN107376603A (en) * | 2017-08-03 | 2017-11-24 | 中石化炼化工程（集团）股份有限公司 | Remove CO in hydrogen manufacturing conversion gas pressure swing adsorption technique tail gas2Method |
| CN107569981A (en) * | 2017-10-11 | 2018-01-12 | 杨正山 | A kind of coal-burning power plant's flue gas collecting carbonic anhydride coupled biological charcoal preparation technology |
| CN110272770A (en) * | 2019-06-21 | 2019-09-24 | 清华四川能源互联网研究院 | Realize that the system and method for bio-natural gas is produced in the purification of biogas electrochemistry using electrolysis water technology |
| CN110295071A (en) * | 2019-06-21 | 2019-10-01 | 浙江臻泰能源科技有限公司 | The bio-natural gas preparation facilities and method of joint Methane decarbonization purification technique and hydrogenation of carbon dioxide methanation |
| CN110467947A (en) * | 2019-05-23 | 2019-11-19 | 上海航天智慧能源技术有限公司 | A kind of renewable natural gas production process based on honourable Methane Resources |
| WO2022201061A1 (en) | 2021-03-23 | 2022-09-29 | Universidade Do Porto | Cyclic adsorptive reactor for upgrade of co2/ch4 mixtures |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106995735A (en) * | 2017-05-03 | 2017-08-01 | 江苏天楹环保能源成套设备有限公司 | A kind of disposal system of landfill gas or biogas |
| CN107376603A (en) * | 2017-08-03 | 2017-11-24 | 中石化炼化工程（集团）股份有限公司 | Remove CO in hydrogen manufacturing conversion gas pressure swing adsorption technique tail gas2Method |
| CN107569981A (en) * | 2017-10-11 | 2018-01-12 | 杨正山 | A kind of coal-burning power plant's flue gas collecting carbonic anhydride coupled biological charcoal preparation technology |
| CN110467947A (en) * | 2019-05-23 | 2019-11-19 | 上海航天智慧能源技术有限公司 | A kind of renewable natural gas production process based on honourable Methane Resources |
| CN110272770A (en) * | 2019-06-21 | 2019-09-24 | 清华四川能源互联网研究院 | Realize that the system and method for bio-natural gas is produced in the purification of biogas electrochemistry using electrolysis water technology |
| CN110295071A (en) * | 2019-06-21 | 2019-10-01 | 浙江臻泰能源科技有限公司 | The bio-natural gas preparation facilities and method of joint Methane decarbonization purification technique and hydrogenation of carbon dioxide methanation |
| WO2022201061A1 (en) | 2021-03-23 | 2022-09-29 | Universidade Do Porto | Cyclic adsorptive reactor for upgrade of co2/ch4 mixtures |
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