GB2464784A - Gas pressure booster using drive gas produced by electrolysis - Google Patents
Gas pressure booster using drive gas produced by electrolysis Download PDFInfo
- Publication number
- GB2464784A GB2464784A GB0910205A GB0910205A GB2464784A GB 2464784 A GB2464784 A GB 2464784A GB 0910205 A GB0910205 A GB 0910205A GB 0910205 A GB0910205 A GB 0910205A GB 2464784 A GB2464784 A GB 2464784A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- drive
- pressure
- hydrogen
- electrolysis
- 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- Withdrawn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
- 238000005868 electrolysis reaction Methods 0.000 title abstract 5
- 239000007789 gas Substances 0.000 claims abstract description 58
- 239000001257 hydrogen Substances 0.000 claims abstract description 18
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000000126 substance Substances 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims 2
- 239000012530 fluid Substances 0.000 claims 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
A method of increasing the pressure of a gas, comprising passing a gas through a gas pressure booster or compressor, wherein the gas pressure booster is powered by a drive substance which is produced by electrolysis. Preferably, the drive substance has a pressure of at least 10 bar and the electrolyser may be self-pressurised. Ideally, water is subjected to electrolysis to produce oxygen and hydrogen which may be used as drive substances. The method may be used to produce and store hydrogen wherein the hydrogen produced by electrolysis is stored at high pressure by passing the hydrogen through a gas driven booster or compressor which is driven by oxygen, also produced by the electrolysis.
Description
GAS PRESSURE BOOSTER
Field of the Invention
This invention relates to gas pressure boosters.
Background of the Invention
The use of air/liquid-driven gas boosting is known, and in some applications can offer significant advantages over motor-driven systems. Typical systems involve utilising a hydraulic or compressed air line (drive gas) to drive a pump that boosts the pressure of a product gas such as compressed natural gas (CNG). This allows the compression of product gas without the requirement for electrically-driven motor compressors and thus can offer greater energy efficiencies and enhanced safety.
Typical systems involve the use of an external power source to compress the drive gas to operate the gas booster. This is typically an air compressor which is electrically driven.
Electrolysers use an electrochemical process to split water into hydrogen and oxygen. The resultant gasses can then be used for a variety of processes. The electrolyser can be designed to self-pressurise during operation and therefore is a source of compressed gas. Both the hydrogen and the oxygen can be pressurised.
If necessary, water can also be pressurised.
Summary of the Invention
This invention utilises the resultant compressed gas and/or water streams of a self-pressurising electrolyser to drive a liquid/air driven gas booster. The gas booster subsequently increases the pressure of a product gas in a product gas line, which may be from the same electrolyser.
According to a first aspect, the present invention is a method of increasing the pressure of a product gas, comprising passing a product gas through a gas pressure booster, wherein the gas pressure booster is powered by a drive substance which is produced by an electrolyser.
According to a second aspect, the present invention is a combination of gas pressure booster powered by a drive gas, and an electrolyser which produces the drive gas.
Description of Preferred Embodiments
A gas pressure booster is well known to those skilled in the art. It is a device which uses a drive gas (or liquid) to increase the pressure of a product gas.
In a preferred embodiment, the present invention is a gas/liquid-driven booster or compressor in conjunction with an electrolyser to produce compressed hydrogen or oxygen gas (the product gas) by utilising a secondary gas/liquid stream produced from the electrolytic process (the drive gas). The resulting device has improved energy efficiency and reduced balance of plant.
An example of this would be to utilise the self-compressed oxygen line from an electrolyser to boost the gas pressure of the hydrogen line for use in a high pressure hydrogen cylinder.
In a preferred embodiment, the product gas is hydrogen, which can be stored at high pressure for use as a chemical fuel or a chemical feedstock.
Hydrogen is normally stored as a gas, and the pressure determines the quantity of hydrogen that can be stored in a given volume. For this reason the highest achievable pressure is desirable particularly if the hydrogen is to be used in a transport application e.g. to operate a hydrogen internal combustion engine in a road vehicle.
Preferably, the drive substance, which is preferably a gas, is at a pressure of at least 10 bar. This is achievable using a standard self-pressurised electrolyser.
Therefore, preferably, the electrolyser is a self-pressurised electrolyser. More preferably, the drive substance is at a pressure of at least 50, 60 or 70 bar.
An electrolyser commonly produces hydrogen and oxygen at pressures up to bar. However, for use in a motor vehicle, pressures of 200 to 350 bar are desirable, to increase the range of the vehicle. Gas pressure boosters (typified by the commercially available product Haskel 4AG-25) can produce such pressures.
They start with gas at low pressure, and increase the pressure using a supply of compressed air (the drive gas, typically at a pressure of 10 bar). However, the system requires significant additional energy to drive the air compressor.
In one embodiment, an electrolyser supplies both oxygen and hydrogen at a pressure of 75 bar. The oxygen is stored at a pressure suitable for operating the gas booster (i.e. a pressure above 10 bar) and is used as the drive gas to power the gas booster. This can pressurise the hydrogen (the product gas) to 200 bar, for storage and use. The advantages are significantly reduced energy demand and a simplified balance of plant.
A combination according to the invention (ie. a gas pressure booster driven by a substance produced in an electrolyser) may be used to correct osmotic drag, where relatively small volumes of water can be returned to the 02 separation tower.
Claims (10)
- CLAIMS1. A method of increasing the pressure of a product gas, comprising passing a product gas through a gas pressure booster, wherein the gas pressure booster is powered by a drive substance which is produced by an electrolyser.
- 2. A method according to claim 1, wherein the drive substance is produced at a pressure of at least 10 bar.
- 3. A method according to claim 1 or claim 2, wherein the drive gas is oxygen.
- 4. A method according to claim 1 or claim 2, wherein the drive gas is hydrogen.
- 5. A method according to claim 1 or claim 2, wherein the drive substance is water.
- 6. A method according to any preceding claim, wherein the product gas is produced by the same electrolyser as the drive substance.
- 7. A method according to any preceding claim, wherein the drive substance and the product gas are separated in the gas pressure booster, by a barrier fluid.
- 8. A method according to claim 7, wherein the barrier fluid is liquid or air.
- 9. A combination of gas pressure booster powered by a drive gas, and an electrolyser which produces the drive gas.
- 10. A combination according to claim 9, wherein the drive gas is at a pressure of at least 10 bar.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0810905.0A GB0810905D0 (en) | 2008-06-13 | 2008-06-13 | Pressurisation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0910205D0 GB0910205D0 (en) | 2009-07-29 |
| GB2464784A true GB2464784A (en) | 2010-05-05 |
Family
ID=39672282
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB0810905.0A Ceased GB0810905D0 (en) | 2008-06-13 | 2008-06-13 | Pressurisation |
| GB0910205A Withdrawn GB2464784A (en) | 2008-06-13 | 2009-06-12 | Gas pressure booster using drive gas produced by electrolysis |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GBGB0810905.0A Ceased GB0810905D0 (en) | 2008-06-13 | 2008-06-13 | Pressurisation |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB0810905D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3760764A1 (en) * | 2019-07-01 | 2021-01-06 | Prüf- und Forschungsinstitut Pirmasens e.V. | Method and device for hydropneumatic compression of gases for power to gas applications |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188706A (en) * | 1988-01-25 | 1989-07-28 | Mitsubishi Heavy Ind Ltd | Pressure generator using electrolysis of water |
| JPH0693482A (en) * | 1992-09-14 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Pressurized high temperature steam electrolytic method |
| RU2042050C1 (en) * | 1989-12-19 | 1995-08-20 | Новосибирский инженерно-строительный институт | Method and device for obtaining compressed air |
| JP2007100204A (en) * | 2005-10-07 | 2007-04-19 | Mitsubishi Corp | Method and apparatus for producing high pressure hydrogen |
| CN101275234A (en) * | 2007-03-27 | 2008-10-01 | 王仁坤 | Technology for decomposing hydrogen and oxygen in water and resynthesizing to generate new energy and special system thereof |
| EP2138678A1 (en) * | 2008-06-25 | 2009-12-30 | Siemens Aktiengesellschaft | Energy storage system and method for storing and supplying energy |
-
2008
- 2008-06-13 GB GBGB0810905.0A patent/GB0810905D0/en not_active Ceased
-
2009
- 2009-06-12 GB GB0910205A patent/GB2464784A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01188706A (en) * | 1988-01-25 | 1989-07-28 | Mitsubishi Heavy Ind Ltd | Pressure generator using electrolysis of water |
| RU2042050C1 (en) * | 1989-12-19 | 1995-08-20 | Новосибирский инженерно-строительный институт | Method and device for obtaining compressed air |
| JPH0693482A (en) * | 1992-09-14 | 1994-04-05 | Mitsubishi Heavy Ind Ltd | Pressurized high temperature steam electrolytic method |
| JP2007100204A (en) * | 2005-10-07 | 2007-04-19 | Mitsubishi Corp | Method and apparatus for producing high pressure hydrogen |
| CN101275234A (en) * | 2007-03-27 | 2008-10-01 | 王仁坤 | Technology for decomposing hydrogen and oxygen in water and resynthesizing to generate new energy and special system thereof |
| EP2138678A1 (en) * | 2008-06-25 | 2009-12-30 | Siemens Aktiengesellschaft | Energy storage system and method for storing and supplying energy |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3760764A1 (en) * | 2019-07-01 | 2021-01-06 | Prüf- und Forschungsinstitut Pirmasens e.V. | Method and device for hydropneumatic compression of gases for power to gas applications |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0910205D0 (en) | 2009-07-29 |
| GB0810905D0 (en) | 2008-07-23 |
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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) |