GB2556077A - Oxygen generation system and method of generating oxygen gas - Google Patents

Oxygen generation system and method of generating oxygen gas Download PDF

Info

Publication number
GB2556077A
GB2556077A GB1619487.0A GB201619487A GB2556077A GB 2556077 A GB2556077 A GB 2556077A GB 201619487 A GB201619487 A GB 201619487A GB 2556077 A GB2556077 A GB 2556077A
Authority
GB
United Kingdom
Prior art keywords
electrical energy
source
water
hydrogen
oxygen
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Withdrawn
Application number
GB1619487.0A
Other versions
GB201619487D0 (en
Inventor
Fieret Jacob
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority to GB1619487.0A priority Critical patent/GB2556077A/en
Publication of GB201619487D0 publication Critical patent/GB201619487D0/en
Publication of GB2556077A publication Critical patent/GB2556077A/en
Withdrawn legal-status Critical Current

Links

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
    • 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/18—Regenerative fuel cells, e.g. redox flow batteries or secondary fuel cells
    • H01M8/184—Regeneration by electrochemical means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M16/00—Structural combinations of different types of electrochemical generators
    • H01M16/003—Structural combinations of different types of electrochemical generators of fuel cells with other electrochemical devices, e.g. capacitors, electrolysers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
    • H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
    • H01M8/0656—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants by electrochemical means
    • 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
    • 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
    • Y02E60/50—Fuel cells

Abstract

An oxygen generation system (100) comprises an electrolytic cell apparatus (102) for chemically decomposing water into hydrogen gas and oxygen gas. The electrolytic cell apparatus (102) has a water input port, a hydrogen output port and an oxygen output port. A source of electrical energy (118) is also provided and operably coupled to the electrolytic cell apparatus (102), the source of electrical energy having a hydrogen input port. The hydrogen output port of the electrolytic cell apparatus (102) is operably coupled to the hydrogen input port of the second source of electrical energy (128). The first electrical energy source may comprise a hydrocarbon fuel such as diesel or an electrical energy storage device such as a battery.

Description

(71) Applicant(s):
Linde Aktiengesellschaft (Incorporated in the Federal Republic of Germany) Klosterhofstrasse 1, Munich 80331, Germany (72) Inventor(s):
(56) Documents Cited:
WO 2016/204233 A1 US 20160265122 A1 US 20040131902 A1 (58) Field of Search:
INT CL C25B, H01M Other: WPI and EPODOC
Jacob Fieret
WO 2007/008891 A1 US 20100025232 A1 US 20040086755 A1 (74) Agent and/or Address for Service:
Laudens
Blackwell House, Guildhall Yard, LONDON, EC2V 5AE, United Kingdom (54) Title of the Invention: Oxygen generation system and method of generating oxygen gas Abstract Title: Oxygen generation system and method of generating oxygen gas (57) An oxygen generation system (100) comprises an electrolytic cell apparatus (102) for chemically decomposing water into hydrogen gas and oxygen gas. The electrolytic cell apparatus (102) has a water input port, a hydrogen output port and an oxygen output port. A source of electrical energy (118) is also provided and operably coupled to the electrolytic cell apparatus (102), the source of electrical energy having a hydrogen input port. The hydrogen output port of the electrolytic cell apparatus (102) is operably coupled to the hydrogen input port of the second source of electrical energy (128). The first electrical energy source may comprise a hydrocarbon fuel such as diesel or an electrical energy storage device such as a battery.
Figure GB2556077A_D0001
102
100
1/4 ^r ^r
Figure 1
Figure GB2556077A_D0002
z
2/4
100
Figure GB2556077A_D0003
/ Figure 2
200
3/4
Figure GB2556077A_D0004
Figure 3
4/4
Figure GB2556077A_D0005
Figure 4
OXYGEN GENERATION SYSTEM AND METHOD OF GENERATING OXYGEN GAS [0001] The present invention relates to an oxygen generation system and method which chemically decompose water into hydrogen gas and oxygen gas, and a method of generating oxygen gas.
[0002] A plurality of different techniques are known for the generation of oxygen. One technique is a cryogenic distillation of liquidised air, requiring the use of compressors. Whilst the energy requirement for this technique represents a relatively economic way of generating oxygen of high purity for many applications, the equipment employed is large and not transportable.
[0003] Another technique is the so-called “Pressure Swing Absorption” (PSA) technique. A single stage variant of this technique is used to produce low purity oxygen relatively economically for some applications, although the hardware required to implement production of oxygen by the PSA technique is also not portable. A multi-stage variant of the PSA technique can be used to produce oxygen with a higher purity than can be obtained with the single stage variant of this technique. Unfortunately, the energy requirements to obtain the higher purity oxygen make the multi-stage variant less economic for some applications, and the related equipment is complex and not easily transportable by rail, road or sea.
[0004] A further technique is electrolysis, which produces oxygen of high purity using compact, transportable equipment. However, the energy requirements of an electrolysis cell make the generation of high purity oxygen uneconomic for some applications.
[0005] There is therefore provided herein a first embodiment of the present invention, wherein an oxygen generation system or apparatus comprises: an electrolytic cell apparatus for chemically decomposing water into hydrogen gas
-2and oxygen gas, the electrolytic cell apparatus having a water input port, a hydrogen output port and an oxygen output port; and a source of electrical energy operably coupled to the electrolytic cell apparatus, the source of electrical energy comprising a hydrogen input port; wherein the hydrogen output port of the electrolytic cell apparatus is operably coupled to the hydrogen input port of the source of electrical energy.
[0006] The source of electrical energy may comprise a hydrogen fuel cell. The source of electrical energy may comprise an energy storage device.
[0007] The source of electrical energy may also comprise a hydrogen or hydrocarbon fuel system.
[0008] The electrolytic cell apparatus and the source of electrical energy may constitute a transportable system.
[0009] The electrolytic cell apparatus may have an energy requirement value associated therewith; at least part of the energy of the energy requirement value may be provided by the operable coupling of the hydrogen output port of the electrolytic cell apparatus to the hydrogen input port of the source of electrical energy.
[0010] The source of electrical energy may comprise: a first electrical energy source; a second electrical energy source; and a power converter having inputs operably coupled to the first electrical energy source and the second electrical energy source; an output of the power converter may be operably coupled to the electrolytic cell apparatus.
[0011] According to a second embodiment of the present invention, there is provided a water oxygenation system or apparatus comprising: the oxygen generation system as set forth above in relation to the first embodiment of the invention; and a water oxygenator having an oxygen input port; wherein the
-3oxygen output port of the oxygen generation system is operably coupled to the oxygen input port of the water oxygenator.
[0012] According to a third embodiment of the present invention, there is provided a method of generating oxygen gas, the method comprising: providing a source of electrical energy; chemically decomposing water into hydrogen gas and the oxygen gas, the chemical decomposition of the water being powered by the source of electrical energy; recycling the hydrogen gas generated from the water to contribute to powering the chemical decomposition of the water by the source of electrical energy.
[0013] The method may further comprise: recycling the hydrogen gas generated from the water in a hydrogen fuel cell.
[0014] The method may further comprise: storing electrical energy in the source of electrical energy prior to using the electrical energy for powering the chemical decomposition of the water.
[0015] The method may further comprise: fuelling the source of electrical energy with hydrogen or hydrocarbon fuel.
[0016] The chemical decomposition of the water into the hydrogen gas and the oxygen gas may have an energy requirement value associated therewith; and the method may further comprise: providing at least part of the energy of the energy requirement value using the recycled hydrogen gas.
[0017] The method may further comprise: receiving electrical energy from a first electrical energy source and a second electrical energy source of the source of electrical energy; converting the electrical energy received from the first and second electrical energy source into a consolidated source of electrical energy; and powering the chemical decomposition of the water using the common source of electrical energy.
-4[0018] According to a fourth embodiment of the present invention, there is provided a method of oxygenating water, the method comprising: generating oxygen gas using the method of generating oxygen gas as set forth above in relation to the third embodiment of the invention; and oxygenating a body of water with the oxygen gas generated.
[0019] It is thus possible to provide an oxygen generation system and a method of generating oxygen that lends itself to applications where transportability of equipment is a requirement and in an economic manner from a power-consumption perspective for certain applications.
[0020] At least one embodiment of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which:
Figure 1 is a schematic diagram of an oxygen generation system constituting an embodiment of the invention;
Figure 2 is a schematic diagram of a water oxygenation system constituting another embodiment of the invention;
Figure 3 is a flow diagram of a method of generating oxygen constituting a further embodiment of the invention; and
Figure 4 is a schematic diagram of an oxygen generation system constituting yet another embodiment of the invention.
[0021] Throughout the following description identical reference numerals will be used to identify like parts.
[0022] Referring to Figure 1, an oxygen generation system 100, which is transportable, comprises an electrolytic cell apparatus 102 of an electrolytic
-5oxygen generator. The electrolytic cell 102 comprises an anode terminal 104 and a cathode terminal 106 respectively coupled to positive and negative output terminals 108, 110 of a power converter 112, which output constitutes a consolidated source of electrical energy. The electrolytic cell 102 also comprises an oxygen output port 114, a hydrogen output port 116 and a water input port 115 for providing the electrolytic cell 102 with high purity, degassed, water, for example, distilled water.
[0023] The power converter 112 is also coupled to a first electrical energy source 118 having positive and negative output terminals 120, 122 respectively operably coupled to first positive and negative input terminals 124, 126 of the power converter 112. The first electrical energy source 118 is, in this example, a portable electricity generator, for example a source that is fuelled by a hydrocarbon, such as diesel. Additionally or alternatively, the first electrical energy source 118 can store electrical energy, for example an energy storage device that can comprise one or more electrochemical cells, such as a battery.
[0024] The oxygen output port 114 of the electrolytic cell 102 is coupled to any suitable apparatus or application requiring high purity oxygen, for example a purity greater than about 99.5%, such as up to about 99.999%. An example application will be described later herein. The hydrogen output port 116 of the electrolytic cell 102 is operably coupled to a second electrical energy source 128 arranged to recycle hydrogen from the electrolytic cell 102 into electrical energy to contribute to powering of the electrolytic cell 102. In this example, the second electrical energy source 128 is a fuel cell, such as a hydrogen fuel cell. Of course, the skilled person should appreciate that other apparatus that can use a by-product, for example hydrogen gas, of an oxygen generation process can be employed as the second electrical energy source 128. The hydrogen fuel cell 128 comprises a hydrogen input port 130 that is fluidly connected to the hydrogen output port 116 of the electrolytic cell 102. The hydrogen fuel cell 128 also comprises an air inlet 132 and positive and negative output terminals 134, 136, the positive and negative output terminals 134, 136 being operably
-6coupled to second positive and negative input terminals 138, 140, respectively, of the power converter 112. The hydrogen fuel cell 128 also comprises a waste water outlet port 142.
[0025] The first and second electrical energy sources 118, 128 and the power converter 112 constitute a source of electrical energy 144. However, the skilled person should appreciate that the source of electrical energy 144 can be structured differently as will be described later herein. The oxygen generation system 100 thus comprises the electrolytic cell 102 and the source of electrical energy 144, which in this example includes the power converter 112 and the first and second electrical energy sources 118, 128.
[0026] The oxygen generation system 100 can be used for different applications, such as but not limited to the provision of medical oxygen, cutting and welding applications requiring oxygen as a fuel or otherwise, such as oxyfuel welding or cutting and/or laser cutting, and/or oxygenation of water, such as for aquatic applications. In this respect, a water oxygenation system 200 of Figure 2 includes the oxygen generation system 100 as another embodiment, operably coupled to an oxygen input port 202 of an oxygenator. An example of the oxygenator is an oxygenation system 204 available under the trademark SOLVOX® from Linde Aktiengesellschaft. In this example, the oxygen input port 202 of the oxygenation system 204 is operably coupled to the oxygen output port 114 of the electrolytic cell 102. In this example, the oxygenator 204 is disposed in a body of water 206.
[0027] In operation and referring to Figure 3, the oxygen generation system 100 is set up (Step 300) and the first electrical energy source 118 is placed in a supply mode, for example a switch (not shown) is actuated, in order to supply electrical energy to the electrolytic cell 102. In this respect, the electrical energy supplied by the first electrical energy source 118 is applied to the first positive and negative input terminals 124, 126 of the power converter 112. The power converter 112 regulates the electrical power received from the first source of
-7electrical energy, initially in the absence of any contribution of electrical energy from the hydrogen fuel cell 128, in order to supply a predetermined amount of electrical energy at the positive and negative output terminals 108, 110 of the power converter 112 in order to meet a predetermined electrical energy requirement value of the electrolytic cell 102. In response to the provision of electrical power to the electrolytic cell 102, the electrolytic cell 102 chemically decomposes (Step 304) the water into hydrogen gas and oxygen gas. The hydrogen gas generated is fed back to the hydrogen fuel cell 128, thereby recycling (Step 306) the hydrogen gas. The oxygen gas output at the oxygen output port 114 is used as required by a specific application for which the oxygen generation system 100 has been acquired, for example for the applications already described above, such as oxygenation of water.
[0028] The hydrogen fuel cell 128 uses the hydrogen gas received in order to generate (Step 308) electrical energy in accordance with the normal manner of operation of the hydrogen fuel cell 128. In this respect, the details of operation of hydrogen fuel cells is not central to an understanding of the examples set forth herein. Consequently, operation of the hydrogen fuel cell 128, beyond the mention that it generates electrical energy from input hydrogen gas, will not be described further herein. The electrical energy generated by the hydrogen fuel cell 128 is applied to the second positive and negative input terminals 138, 140 of the power converter 112. The power converter 112 regulates (Step 310) the electrical energy provided at the positive and negative output terminals 108, 110 thereof, using or maximising use of electrical energy provided by the hydrogen fuel cell 128 in favour of the electrical energy provided by the first source of electrical energy 118. Hence, at least part of the energy requirement value is provided by the second source of electrical energy 128.
[0029] As long as the oxygen generation system 100 remains powered and in an operational mode (Step 312), the chemical decomposition of the water, the recycling of the hydrogen gas generated by the chemical decomposition of the water and the use of the electricity generated by the hydrogen fuel cell 128
-8to contribute to the powering of the electrolytic cell 102, will continue (steps 304 to 312).
[0030] For water oxygenation, the oxygen output port 114 of the oxygen generation system 100 is coupled to the oxygen input port 202 of the oxygenator 204, as shown in Figure 2. The oxygen generation system 100 is then powered-up and oxygen gas is then generated in the manner described above. Referring also to Figure 3, the oxygen gas is provided to the oxygen input port 202 of the oxygenator 204, and the oxygenator 204 then uses the received oxygen gas to oxygenate (Step 314) the body of water 206. As the manner of oxygenation is not core to the principles expounded in this example, for the sake of clarity and conciseness of description, operation of the oxygenator 204 will not be described herein.
[0031] The skilled person should appreciate that the above-described embodiments are examples of what can be implemented within the scope of the appended claims. Indeed, in another example of the oxygen generation system 100 shown in Figure 4, the source of electrical energy 144 is structured differently from that which is described above that is related to Figure 1. That is, in this embodiment of Figure 4, the source of electrical energy 144 is a power generation unit 400 fuelled principally by a hydrocarbon fuel, for example diesel, although the use of hydrogen gas is conceivable. The power generation unit 400 comprises a fuel reservoir 402 for storing fuel, which in this example is diesel, operably coupled to an internal combustion engine and electricity generator 404 via a fuel management system 406. As such, the fuel management system 406 is operably coupled to the internal combustion engine and electricity generator 404. As disclosed above, the internal combustion engine can be fuelled by hydrogen gas as the primary or sole fuel, if desired. The source of electrical energy 144 and hence the power generation unit 400 comprises the hydrogen input port 130, which is operably coupled to the hydrogen output port 116 of the electrolytic cell 102. Electrical energy is provided via the positive and negative output terminals 108, 110, which are
-9operably coupled to the anode terminal 104 and the cathode terminal 106 of the electrolytic cell 102.
[0032] In operation, the power generation unit 400 is activated and initially uses diesel contained in the fuel reservoir 402 to fuel the internal combustion engine part of the internal combustion engine and electricity generator 404 in order to generate the electrical energy. The electrical energy is used by the electrolytic cell 102 to decompose chemically the water in order to generate oxygen gas and hydrogen gas as described above in relation to preceding examples set forth herein.
[0033] The oxygen gas is used for any desired application. The hydrogen gas, which is again in this example a by-product, is fed to the power generation unit 400 and managed by the fuel management system 406. In this respect, the fuel management system 406 controls application of the primary fuel, in this example the diesel, in the engine depending upon the technique employed to introduce the diesel into the cylinders of the engine and introduction of hydrogen gas into the air inlet of the engine so that the primary fuel is consumed in a most efficient manner whilst ensuring optimum performance of the engine. Again, the operation of the fuel management system 406 is not central to an understanding of this example and so, for the sake of clarity and conciseness of description, will not be described in further detail herein.
[0034] 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 invention. All such variations and modifications are intended to be included within the scope of the invention as described and claimed herein. Further, all embodiments disclosed are not necessarily in the alternative, as various embodiments of the invention may be combined to provide the desired result.

Claims (15)

Claims
1. An oxygen generation system comprising:
an electrolytic cell apparatus for chemically decomposing water into hydrogen gas and oxygen gas, the electrolytic cell apparatus having a water input port, a hydrogen output port and an oxygen output port; and a source of electrical energy operably coupled to the electrolytic cell apparatus, the source of electrical energy comprising a hydrogen input port; wherein the hydrogen output port of the electrolytic cell apparatus is operably coupled to the hydrogen input port of the source of electrical energy.
2. A system as claimed in Claim 1, wherein the source of electrical energy comprises a hydrogen fuel cell.
3. A system as claimed in Claim 1 or Claim 2, wherein the source of electrical energy comprises an energy storage device.
4. A system as claimed in Claim 1 or Claim 2, wherein the source of electrical energy also comprises a hydrogen or hydrocarbon fuel system.
5. A system as claimed in any one of the preceding claims, wherein the electrolytic cell apparatus and the source of electrical energy constitute a transportable system.
6. A system as claimed in any one of the preceding claims, wherein the electrolytic cell apparatus comprises an energy requirement value associated therewith, at least part of the energy of the energy requirement value being provided by operable coupling of the hydrogen output port of the electrolytic cell apparatus with the hydrogen input port of the source of electrical energy.
- 11
7. A system as claimed in any one of the preceding claims, wherein the source of electrical energy comprises:
a first electrical energy source; a second electrical energy source; and a power converter having inputs operably coupled to the first electrical energy source and the second electrical energy source, an output of the power converter being operably coupled to the electrolytic cell apparatus.
8. A water oxygenation system comprising:
the oxygen generation system as claimed in any one of the preceding claims; and a water oxygenator having an oxygen input port; wherein the oxygen output port of the oxygen generation system is operably coupled to the oxygen input port of the water oxygenator.
9. A method of generating oxygen gas, the method comprising: providing water and a source of electrical energy;
chemically decomposing water into hydrogen gas and the oxygen gas by the source of electrical energy; and recycling the hydrogen gas generated from the water for contributing to powering the chemically decomposing of the water by the source of electrical energy.
10. A method as claimed in Claim 9, further comprising:
recycling the hydrogen gas generated from the water in a hydrogen fuel cell.
11. A method as claimed in Claim 9 or Claim 10, further comprising:
storing electrical energy in the source of electrical energy prior to using the electrical energy for powering chemical decomposition of the water.
12. A method as claimed in Claim 9 or Claim 10, further comprising: fuelling the source of electrical energy with hydrocarbon fuel.
- 12
13. A method as claimed in any one of Claims 9 to 12, wherein the chemically decomposing of the water into the hydrogen gas and the oxygen gas comprises an energy requirement value associated therewith, the method further comprising:
5 using recycled hydrogen gas for providing at least part of the energy of the energy requirement value.
14. A method as claimed in any one of Claims 9 to 13, further comprising: receiving electrical energy from a first electrical energy source and a second
10 electrical energy source;
converting the electrical energy received from the first and second electrical energy sources into a consolidated source of electrical energy; and powering the chemically decomposing of the water using the commonconsolidated source of electrical energy.
15. A method of oxygenating water, the method comprising:
generating oxygen gas using the method of generating oxygen gas as claimed in any one of Claims 9 to 14; and oxygenating a body of water with the oxygen gas generated.
Intellectual
Property
Office
Application No: GB1619487.0 Examiner: Dr Marian Lillington
GB1619487.0A 2016-11-17 2016-11-17 Oxygen generation system and method of generating oxygen gas Withdrawn GB2556077A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1619487.0A GB2556077A (en) 2016-11-17 2016-11-17 Oxygen generation system and method of generating oxygen gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1619487.0A GB2556077A (en) 2016-11-17 2016-11-17 Oxygen generation system and method of generating oxygen gas

Publications (2)

Publication Number Publication Date
GB201619487D0 GB201619487D0 (en) 2017-01-04
GB2556077A true GB2556077A (en) 2018-05-23

Family

ID=57993938

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1619487.0A Withdrawn GB2556077A (en) 2016-11-17 2016-11-17 Oxygen generation system and method of generating oxygen gas

Country Status (1)

Country Link
GB (1) GB2556077A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110104806A (en) * 2019-05-22 2019-08-09 南京森淼环保科技有限公司 A kind of energy circulation active convective aerobic ecological chinampa

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040086755A1 (en) * 2002-10-30 2004-05-06 Corning Incorporated Portable fuel cell system
US20040131902A1 (en) * 2002-11-27 2004-07-08 Hydrogenics Corporation Regenerative power supply system and components thereof
WO2007008891A2 (en) * 2005-07-12 2007-01-18 Honeywell International Inc. Fuel cell recharger
US20100025232A1 (en) * 2008-07-29 2010-02-04 Gm Global Technology Operations, Inc. Recovering the compression energy in gaseous hydrogen and oxygen generated from high-pressure water electrolysis
US20160265122A1 (en) * 2013-11-05 2016-09-15 Dalian University Of Technology An electrochemical method for producing pure-oxygen gas and oxygen-lean gas from oxygen-containing gas mixtures
WO2016204233A1 (en) * 2015-06-17 2016-12-22 デノラ・ペルメレック株式会社 Water treatment system using alkaline water electrolysis device and alkaline fuel cell

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040086755A1 (en) * 2002-10-30 2004-05-06 Corning Incorporated Portable fuel cell system
US20040131902A1 (en) * 2002-11-27 2004-07-08 Hydrogenics Corporation Regenerative power supply system and components thereof
WO2007008891A2 (en) * 2005-07-12 2007-01-18 Honeywell International Inc. Fuel cell recharger
US20100025232A1 (en) * 2008-07-29 2010-02-04 Gm Global Technology Operations, Inc. Recovering the compression energy in gaseous hydrogen and oxygen generated from high-pressure water electrolysis
US20160265122A1 (en) * 2013-11-05 2016-09-15 Dalian University Of Technology An electrochemical method for producing pure-oxygen gas and oxygen-lean gas from oxygen-containing gas mixtures
WO2016204233A1 (en) * 2015-06-17 2016-12-22 デノラ・ペルメレック株式会社 Water treatment system using alkaline water electrolysis device and alkaline fuel cell

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110104806A (en) * 2019-05-22 2019-08-09 南京森淼环保科技有限公司 A kind of energy circulation active convective aerobic ecological chinampa
CN110104806B (en) * 2019-05-22 2022-02-08 南京森淼环保科技有限公司 Energy circulation active convection oxygenation ecological floating island

Also Published As

Publication number Publication date
GB201619487D0 (en) 2017-01-04

Similar Documents

Publication Publication Date Title
CN101306302B (en) Hydrogen containing industrial waste gas separation and purification method
KR20110114816A (en) Apparatus for capturing carbon dioxide using fuel cell power generation system in a ship and method thereof
CN103328321A (en) Floating or submerging device with an electrolyser
CN114395775A (en) Closed clean energy hydrogen production energy storage system
Susai et al. Development of a 1 kW polymer electrolyte fuel cell power source
CN113594526A (en) Ammonia energy storage-based poly-generation system and working method thereof
KR20060135142A (en) Fuel cell system and driving method thereof
SK50222011A3 (en) Combined magnetohydrodynamic and electrochemical method for production especially of electric energy and device
GB2556077A (en) Oxygen generation system and method of generating oxygen gas
CN213232516U (en) Electrochemical hydrogen pump system for preparing high-pressure high-purity hydrogen
US20160181633A1 (en) Complex fuel cell stack with hydrogen storage unit
JPH09139217A (en) Closed type fuel cell system
ATE433204T1 (en) FUEL CELL WITH INTERNAL HYDROGEN RECYCLING
Ali et al. Fuel Cells-A signpost to future
JP2009541968A (en) Fuel supply system for fuel cell
JP6815415B2 (en) Regenerative fuel cell system and water electrolysis system
CN102456903A (en) Method for electrolytically preparing hydrogen from formic acid
CN1519971A (en) Fuel cell system of proton exchange membrane with air being circulated partially
CN114784861A (en) System and method for supplying electricity and heat for island by using offshore renewable energy
TW201008802A (en) Environment friendly oxyhydrogen vehicle with multi-electric power sources
CN114221445A (en) Wave power generation energy storage system and energy storage method for operating same
KR101956240B1 (en) Fuel cell system for ship
CN104611719A (en) Pure oxygen gas source generator for ozone synthesis
TWM470106U (en) The solar energy machine of generating oxygen and hydrogen
CN219980447U (en) Green power supply system for agricultural production

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)