GB2504149A - Recovery of energy from flared vent gas of a micro LNG plant - Google Patents
Recovery of energy from flared vent gas of a micro LNG plant Download PDFInfo
- Publication number
- GB2504149A GB2504149A GB201213013A GB201213013A GB2504149A GB 2504149 A GB2504149 A GB 2504149A GB 201213013 A GB201213013 A GB 201213013A GB 201213013 A GB201213013 A GB 201213013A GB 2504149 A GB2504149 A GB 2504149A
- Authority
- GB
- United Kingdom
- Prior art keywords
- micro
- lng
- plant
- flared
- energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
- F23G7/085—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks in stacks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/60—Application making use of surplus or waste energy
- F05D2220/62—Application making use of surplus or waste energy with energy recovery turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/202—Waste heat recuperation using the heat in association with another installation with an internal combustion engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The flared vented waste gas from a micro LNG (liquefied natural gas) plant is collected by a turbine to recover the caloric value of the waste gas. The turbine receives the flared waste gas from the micro LNG plant and converts it to energy that can be recycled as power to the micro LNG plant or used for other power needs. This provides a reduction of imported power needed to run the micro LNG plant and reduces the amount of green house gas emissions.
Description
Recovery of Energy From Flared Vent Gas of a Micro LNG Plant
FIELD OF THE INVENTION
(001) The invention relates to micro liquefied natural gas (LNG) plants and to the recovery of energy from flared vent gases thereof
BACKGROUND OF THE INVENTION
(002) LNG is predominantly methane that has been converted from gas to liquid form for ease of storage and transportation. This is because LNG takes up about 1/600th the volume of * : natural gas in the gaseous state.
(003) A typical process for obtaining LNG comprises transporting raw natural gas to the * :" plant where it is processed to remove impurity gases, such as C02, H2S, and condensates *** such as water, oil, mud, and any trace amounts of mercury. Once purified, the natural gas is cooled down in stages and condensed until liquefied. The resulting LNG is stored in tanks * : * ready for shipment to market (004) Many LNG p'ants are very large, processing more than a million tons of LNG per year. These LNG plants are often located in relatively remote area for safety reasons and therefore the cost of transport to and from the plant is significant. Small scale LNG plants (with LNG production of 150 to 500 tons per day) have the advantageous of compact size that enables production of LNG close to the location where it will be used, thus reducing the transportation costs. In addition, small scale LNG plants have the advantage of allowing balancing of the availability of natural gas during high and low periods of demand.
* (005) Micro LNG plants (with LNG production of less than 100 tons per day and often in the range of 25 to 50 tons per day) provide advantages for smaller scale industrial needs by allowing small scale LNG production on site with the ability to meet variable demand.
(006) . At various stages of the production of LNG, waste gases, predominantly methane, are vented. These vented gases are normally flared to reduce the impact of green house gases on the environment. However, this practice wastes the potential energy that is produced by such flaring and that could be used for other purposes.
(007) There is a need in the art for improvements to micro LNG plant design and operation.
SUMMARY OF THE INVENTION
(008) The invention provides a system for recovering the energy from the flared waste gases of a nucro LNG plant.
DETAILED DESCRIPTION OF THE INVENTION
* (009) The invention is directed to improvements to micro LNG plants. Micro scale LNO * . .. plants are important production tools for industry in providing on demand, on site LNG while minimizing distribution costs. As noted, waste gas from the micro LNG plant is vented and * :" flared, thus wasting the potential energy available from such waste gas. The invention *.
overcomes this disadvantage by providing a turbine to recover the caloric value of the waste gas. In particular, a turbine receives the flared waste gas from the micro LNG plant and * : converts it to energy that can be recycled as power to the micro LNCJ plant or used for other power needs.
(010) The invention provides significant advantages for micro LNG plants. Without recovery of the flared waste gas, up to 200 kW of potential power can be lost each day from a micro LNG plant. Be recovering the potential power from the flared waste gas of the micro LNG plant, a significant reduction of imported power can be realized. Further, by recycling or using the vented gas for power purposes, a reduction of green house gas emissions is achieved.
(011) Thc turbine used in the invention can be a standard turbine chosen to keep capital costs low and to meet the particular requirements of the micro LNG plant. For example, a micro gas turbine for processing flared vent gases can be used. Such micro gas turbines are very simple in design and therefore have low maintenance costs and high reliability. For example, the C200 MicroTurbine from Capstone Turbine Corporation could be used.
(012) While the invention has been described with reference to the recovery of vent gases from a micro LNG plant, the general idea of recovering flared vent gases is applicable to other settings, such as the recovery of tail gas from a helium plant that has a natural gas feed.
(013) It will be understood that the embodiments described herein are merely exemplary and that one skilled in the art may make variations and modifications without departing from the spirit and scope of the present invention. All such variations and modifications are intended to be included within the scope of the invention as described above. Further, all embodiments disclosed are not necessarily in the alternative, as various embodiments of the invention may be combined to provide the desired result. * * . * .* * * ** * * S..
S * *5d ** * * SE
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201213013A GB2504149A (en) | 2012-07-19 | 2012-07-19 | Recovery of energy from flared vent gas of a micro LNG plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201213013A GB2504149A (en) | 2012-07-19 | 2012-07-19 | Recovery of energy from flared vent gas of a micro LNG plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201213013D0 GB201213013D0 (en) | 2012-09-05 |
| GB2504149A true GB2504149A (en) | 2014-01-22 |
Family
ID=46881779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201213013A Withdrawn GB2504149A (en) | 2012-07-19 | 2012-07-19 | Recovery of energy from flared vent gas of a micro LNG plant |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2504149A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5822974A (en) * | 1997-02-11 | 1998-10-20 | Electric Power Research Inst. | Hybrid biomass and natural gas/oil power generation system |
| WO2000019081A2 (en) * | 1998-08-17 | 2000-04-06 | Ramgen Power Systems, Inc. | Fuel supply and fuel - air mixing for a ram jet combustor |
| WO2001092702A1 (en) * | 2000-05-30 | 2001-12-06 | Turbec Ab | Integrated gas compressor |
| GB2446595A (en) * | 2007-02-14 | 2008-08-20 | Peter John Lo | A gas turbine power plant operating on flare gas |
-
2012
- 2012-07-19 GB GB201213013A patent/GB2504149A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5822974A (en) * | 1997-02-11 | 1998-10-20 | Electric Power Research Inst. | Hybrid biomass and natural gas/oil power generation system |
| WO2000019081A2 (en) * | 1998-08-17 | 2000-04-06 | Ramgen Power Systems, Inc. | Fuel supply and fuel - air mixing for a ram jet combustor |
| WO2001092702A1 (en) * | 2000-05-30 | 2001-12-06 | Turbec Ab | Integrated gas compressor |
| GB2446595A (en) * | 2007-02-14 | 2008-08-20 | Peter John Lo | A gas turbine power plant operating on flare gas |
Non-Patent Citations (4)
| Title |
|---|
| Capstone Receives Order for First C1000 from Oil & Gas Producer Operating in Southern California, Published 27th February 2012, Capstone press release. * |
| GE Supplies Combined-Cycle Technology for Flare Gas Project in Russia, published 23 November 2011, GE press release. * |
| Sauk County Landfill Madison, Wisconsin, published 2006, Capstone press release. * |
| Solutions - Resource Recovery: Oil and Gas, archived 14 April 2011 [http://web.archive.org/web/20110414111945/http://www.capstoneturbine.com/prodsol/solutions/rroilandgas.asp]. * |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201213013D0 (en) | 2012-09-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |