CA2129879A1 - (pressure) electrolyzer with module design - Google Patents
(pressure) electrolyzer with module designInfo
- Publication number
- CA2129879A1 CA2129879A1 CA002129879A CA2129879A CA2129879A1 CA 2129879 A1 CA2129879 A1 CA 2129879A1 CA 002129879 A CA002129879 A CA 002129879A CA 2129879 A CA2129879 A CA 2129879A CA 2129879 A1 CA2129879 A1 CA 2129879A1
- Authority
- CA
- Canada
- Prior art keywords
- pressure
- electrolyzer
- modules
- module
- cell block
- 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.)
- Abandoned
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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
-
- 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
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/05—Pressure cells
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
ABSTRACT OF THE DISCLOSURE
(Pressure)electrolyzer with modulus design for the electrolysis of water for the production of hydrogen and oxygen. The (pressure)electrolyzer consists of at least two (pressure)electrolyzer modules (A,B,...) arranged in series, whereby each (pressure)electrolyzer module in turn consists of one pressure tank (1), inside which is/are arranged the cell block(s) (2) containing the individual electrolysis cells, each pressure container (1) having a flanged joint on at least one of its front sides.
Those (pressure)electrolyzer modules (A,B,...) which only have a flanged joint on one of the front sides of their pressure tanks (1), are closed on the opposite front side by means of a rounded head (3).
The number of cells within one cell block (2) is 10 to 300, preferably 50 to 180, especially 100 to 150.
(Figure 3)
(Pressure)electrolyzer with modulus design for the electrolysis of water for the production of hydrogen and oxygen. The (pressure)electrolyzer consists of at least two (pressure)electrolyzer modules (A,B,...) arranged in series, whereby each (pressure)electrolyzer module in turn consists of one pressure tank (1), inside which is/are arranged the cell block(s) (2) containing the individual electrolysis cells, each pressure container (1) having a flanged joint on at least one of its front sides.
Those (pressure)electrolyzer modules (A,B,...) which only have a flanged joint on one of the front sides of their pressure tanks (1), are closed on the opposite front side by means of a rounded head (3).
The number of cells within one cell block (2) is 10 to 300, preferably 50 to 180, especially 100 to 150.
(Figure 3)
Description
~ E: (PRESSURE)ELECTROLYZER WITH MODULE DESIGN
DETAILED DES~RIPTION OF THE PREFERRED EMBODIMENTS :~-The invention refers to a (pressu~e)electrolyzer with modulus design for the electrolysis of water for the production of hydrogen and oxygen. ~ ~ -The electrolytic decomposition of water for the production of hydrogen and oxygen has been known for a -long time. When this decomposition method was first used for industrial applications, the produced gases could only be supplied at a maximum overpressure of 50 mbar.
But since in most cased this pressure was not sufficient :
for industrial methods requiring hydrogen or oxygen, the development led to pressure elctrolysis. The realization ~ ;
that unnecessary energy consuming overpressure in the ~ ;~
cells could be reduced with increased pressure also played an important role in this development. With the pressure electrolysis method, the produced hydrogen and oxygen gases can be generated with a pressure of approximately 30 bar. This pressure is sufficient for numerous hydrogen and oxygen consuming industrial applications.
~ -:
Practice has shown that the planning and mounting of a (pressure)electrolyzer often does not take into account an expansion of the system within the following years. In these cases it is necessary to install additional (pressure)electrolyzers next to the already existing (pressure)electrolyzer or to replace the original (pressure)electrolyzer with a larger one.
The purpose and goal of the invention is to avoid the disadvantages of the prior art. `
According to the invention this is achieved in that the ~;
(pressure)electrolyzer has at least two (pressure)electrolyzer modules arranged in series, whereby each (pressure)electrolyzer module in turn has a pressure tank inside which is/are arranged the cell block(s) which contain the individual electrolysis cells, each pressure container having a flanged joint on at least one of its front sides.
The (pressure)electrolyzer with module design according to the invention allows to enlarge an already existing (pressure)electrolyzer in phases and in a very simple fashion. secause each of the (pressure)electrolyzer modules essentially has identical dimensions, the production of these modules can be simplified ultimately ~;
allowing to reduce the price of the modules. Any transportation problems between the place of production and the final installation place of the (pressure) electrolyzer module are also avoided, since the maximum dimensions of each module has been chosen so as to allow normal land transportation, for instance by truck or railway. In addition to allowing to expand the (pressure)electrolyzer according to the invention in a simple manner by adding further modules, the repair of damaged modules can also be carried out in a relatively simple fashion. For this purpose the module is removed from the module formation, and once repaired is re-installed. The temporary installation of a replacement module is also possible. The latter case would allow to avoid a lengthy interruption of the H2 and 2 production.
One embodiment of the invention is characterized in that those (pressure)electrolyzer modules which only have a flange joint on one front side of their pressure tanks, are closed on the opposite front side by means of a rounded head. ~
, :. .
The modules intended as so called end modules are usually ~
:
DETAILED DES~RIPTION OF THE PREFERRED EMBODIMENTS :~-The invention refers to a (pressu~e)electrolyzer with modulus design for the electrolysis of water for the production of hydrogen and oxygen. ~ ~ -The electrolytic decomposition of water for the production of hydrogen and oxygen has been known for a -long time. When this decomposition method was first used for industrial applications, the produced gases could only be supplied at a maximum overpressure of 50 mbar.
But since in most cased this pressure was not sufficient :
for industrial methods requiring hydrogen or oxygen, the development led to pressure elctrolysis. The realization ~ ;
that unnecessary energy consuming overpressure in the ~ ;~
cells could be reduced with increased pressure also played an important role in this development. With the pressure electrolysis method, the produced hydrogen and oxygen gases can be generated with a pressure of approximately 30 bar. This pressure is sufficient for numerous hydrogen and oxygen consuming industrial applications.
~ -:
Practice has shown that the planning and mounting of a (pressure)electrolyzer often does not take into account an expansion of the system within the following years. In these cases it is necessary to install additional (pressure)electrolyzers next to the already existing (pressure)electrolyzer or to replace the original (pressure)electrolyzer with a larger one.
The purpose and goal of the invention is to avoid the disadvantages of the prior art. `
According to the invention this is achieved in that the ~;
(pressure)electrolyzer has at least two (pressure)electrolyzer modules arranged in series, whereby each (pressure)electrolyzer module in turn has a pressure tank inside which is/are arranged the cell block(s) which contain the individual electrolysis cells, each pressure container having a flanged joint on at least one of its front sides.
The (pressure)electrolyzer with module design according to the invention allows to enlarge an already existing (pressure)electrolyzer in phases and in a very simple fashion. secause each of the (pressure)electrolyzer modules essentially has identical dimensions, the production of these modules can be simplified ultimately ~;
allowing to reduce the price of the modules. Any transportation problems between the place of production and the final installation place of the (pressure) electrolyzer module are also avoided, since the maximum dimensions of each module has been chosen so as to allow normal land transportation, for instance by truck or railway. In addition to allowing to expand the (pressure)electrolyzer according to the invention in a simple manner by adding further modules, the repair of damaged modules can also be carried out in a relatively simple fashion. For this purpose the module is removed from the module formation, and once repaired is re-installed. The temporary installation of a replacement module is also possible. The latter case would allow to avoid a lengthy interruption of the H2 and 2 production.
One embodiment of the invention is characterized in that those (pressure)electrolyzer modules which only have a flange joint on one front side of their pressure tanks, are closed on the opposite front side by means of a rounded head. ~
, :. .
The modules intended as so called end modules are usually ~
:
2~2g879 closed on one of the front sides by means of a rounded head. The modules intended as so called intermediate modules on the other hand have a flange joint on both front sides. However, it is also possible to use only so called intermediate modules in an already existing module formation if the intention is to expand it to both sides by adding further modules to the intermediate ones.
In a further development of the invention it is suggested that the number of cells inside a cell block be 10 to 300, preferably 50 to 180, especially 100 to 150.
The invention and further embodiments of the same will be explained in more detail in Figures 1 to 3. For this purpose same equipment features have identical reference marks.
-Figure 1 shows a module A of the (pressure)electrolyzer with module design according to the invention. The module A consists of a pressure tank 1 in which rests the cell block 2 containing the individual electrolysis cells. The pressure tank 1 is closed on one front side by means of a rounded head 3, and can be closed on the opposite front side by means of a cover 4. The module A shown in Figure 1 is a so called end module.
Figure 2 on the other hand shows a so called intermediate module in which the pressure tank 1 can be closed on both front sides by means of a cover 4.
Figure 3 shows the (pressure)electrolyzer with module design according to the invention, consisting of two modules A and B, whereby the so called intermediate module B now contains two individual cell blocks 2.
Adjacent to module B, another module is shown to the right with a dotted line, the intention being to indicate that the (pressure)electrolyzer with module design according to the invention can be expanded as desired.
Each one of the (pressure)electrolyzers shown in Figures 1 to 3 is supplied throu~h a pipe 5 with an electrically non-conductive liquid, preferably purified feed water required for the decomposition. This water flows around the cell blocks 2 in the pressure tank 1 and is then removed from the pressure tank 1 through the pipeline 6.
A mixture of leach and the liquid to be decomposed during electrolysis is supplied to the individual cell blocks 2 through the pipes 7, 7l and 7~, while the gas/leach mixtures are removed through the pipes 8, 8l and 8ll.
Pipes 8, 8' and 8ll, of course, in this case represent two individual pipes, since from each cell block a hydrogen/leach mixture is removed through one pipe and an oxygen/leach mixture is removed through another pipe.
For the sake of clarity Figures 1 to 3 do not show additional installations such as heat exchangers for leach, cooling water supply, heating etc.. which could be provided within a pressure tank.
The pressure tank 1 of the so called end and intermediate modules as well as the installations in the pressure tanks 1 can now be produced in series on one production line each. Depending on the required output, the so called end and intermediate modules are mounted in factory, transported to the assembly place and assembled there into an electrolyzer. Thus, the module design allows the production in series in a factory and at favourable prices of large electrolyzers as well as the best assembly on the respective place of installation.
If the (pressure)electrolyzer consists of several modules, each cell block individually or several cell blocks connected in series can be supplied with direct-current. If and how many cell blocks can be connected in series depends essentially on the number of cells per cell block. The number of cells within a cell block is 10 i~ s : . i ..,..:
---` 2129879 : ~
to 300, preferably 50 to 180, especially 100 to 150, -~
The following chart shows the possible expansion phases for a megawatt high efficiency electrolyzer with module 5 design. In this case end modules for 2 . 5 MW and intermediate modules for 5 MW were designed, which are then joined depending on the required output. ~s any expert will know, other variations are possible in addition to this example.
10 ~
H2 Nm /h 600 1200 1800 2400 3000 3600 .
2 h /h 300 600 900 1200 1500 1800 .
w3ter m /h 0,5 _ l,S _ 2,5 3 .
. ' .
In a further development of the invention it is suggested that the number of cells inside a cell block be 10 to 300, preferably 50 to 180, especially 100 to 150.
The invention and further embodiments of the same will be explained in more detail in Figures 1 to 3. For this purpose same equipment features have identical reference marks.
-Figure 1 shows a module A of the (pressure)electrolyzer with module design according to the invention. The module A consists of a pressure tank 1 in which rests the cell block 2 containing the individual electrolysis cells. The pressure tank 1 is closed on one front side by means of a rounded head 3, and can be closed on the opposite front side by means of a cover 4. The module A shown in Figure 1 is a so called end module.
Figure 2 on the other hand shows a so called intermediate module in which the pressure tank 1 can be closed on both front sides by means of a cover 4.
Figure 3 shows the (pressure)electrolyzer with module design according to the invention, consisting of two modules A and B, whereby the so called intermediate module B now contains two individual cell blocks 2.
Adjacent to module B, another module is shown to the right with a dotted line, the intention being to indicate that the (pressure)electrolyzer with module design according to the invention can be expanded as desired.
Each one of the (pressure)electrolyzers shown in Figures 1 to 3 is supplied throu~h a pipe 5 with an electrically non-conductive liquid, preferably purified feed water required for the decomposition. This water flows around the cell blocks 2 in the pressure tank 1 and is then removed from the pressure tank 1 through the pipeline 6.
A mixture of leach and the liquid to be decomposed during electrolysis is supplied to the individual cell blocks 2 through the pipes 7, 7l and 7~, while the gas/leach mixtures are removed through the pipes 8, 8l and 8ll.
Pipes 8, 8' and 8ll, of course, in this case represent two individual pipes, since from each cell block a hydrogen/leach mixture is removed through one pipe and an oxygen/leach mixture is removed through another pipe.
For the sake of clarity Figures 1 to 3 do not show additional installations such as heat exchangers for leach, cooling water supply, heating etc.. which could be provided within a pressure tank.
The pressure tank 1 of the so called end and intermediate modules as well as the installations in the pressure tanks 1 can now be produced in series on one production line each. Depending on the required output, the so called end and intermediate modules are mounted in factory, transported to the assembly place and assembled there into an electrolyzer. Thus, the module design allows the production in series in a factory and at favourable prices of large electrolyzers as well as the best assembly on the respective place of installation.
If the (pressure)electrolyzer consists of several modules, each cell block individually or several cell blocks connected in series can be supplied with direct-current. If and how many cell blocks can be connected in series depends essentially on the number of cells per cell block. The number of cells within a cell block is 10 i~ s : . i ..,..:
---` 2129879 : ~
to 300, preferably 50 to 180, especially 100 to 150, -~
The following chart shows the possible expansion phases for a megawatt high efficiency electrolyzer with module 5 design. In this case end modules for 2 . 5 MW and intermediate modules for 5 MW were designed, which are then joined depending on the required output. ~s any expert will know, other variations are possible in addition to this example.
10 ~
H2 Nm /h 600 1200 1800 2400 3000 3600 .
2 h /h 300 600 900 1200 1500 1800 .
w3ter m /h 0,5 _ l,S _ 2,5 3 .
. ' .
Claims (3)
1. (Pressure)electrolyzer with module design for the electrolysis of water for the production of hydrogen and oxygen, characterized in that the (pressure)electrolyzer has at least two (pressure)electrolyzer modules (A,B,...) arranged in series, whereby each (pressure)electrolyzer module in turn has one pressure tank (1), inside which is/are arranged the cell block(s) (2) containing the individual electrolysis cells, each pressure container (1) having a flanged joint on at least one of its front sides.
2. (Pressure)electrolyzer with module design according to Claim 1, characterized in that those (pressure)electrolyzer modules (A,B,...) which only have a flanged joint on one of the front sides of their pressure tanks (1), are closed on the opposite front side by means of a rounded head (3).
3. (Pressure)electrolyzer with module design according to Claim 1 or 2, characterized in that the number of cells within one cell block (2) is 10 to 300, preferably 50 to 180, especially 100 to 150.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4331383.3 | 1993-09-15 | ||
| DE4331383A DE4331383A1 (en) | 1993-09-15 | 1993-09-15 | (Pressure) electrolyser of modular construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2129879A1 true CA2129879A1 (en) | 1995-03-16 |
Family
ID=6497809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002129879A Abandoned CA2129879A1 (en) | 1993-09-15 | 1994-08-10 | (pressure) electrolyzer with module design |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH0790661A (en) |
| CA (1) | CA2129879A1 (en) |
| DE (1) | DE4331383A1 (en) |
| FR (1) | FR2710076A1 (en) |
| NO (1) | NO943418L (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5756874A (en) * | 1995-10-10 | 1998-05-26 | Eosystems, Inc. | Electrochemical cell for processing organic wastes |
| JP2002012877A (en) * | 2000-06-30 | 2002-01-15 | Ishikawajima Harima Heavy Ind Co Ltd | Method for gasifying fuel and solar gasifying furnace |
| GB0216828D0 (en) * | 2002-07-19 | 2002-08-28 | Boc Group Plc | Apparatus and method for fluorine production |
| JP4635567B2 (en) * | 2004-11-04 | 2011-02-23 | 日立造船株式会社 | Container-contained water electrolyzer for water electrolysis hydrogen generator |
| JP4674659B2 (en) * | 2004-11-04 | 2011-04-20 | 日立造船株式会社 | Container-contained water electrolyzer for water electrolysis hydrogen generator |
| JP5372580B2 (en) * | 2009-04-14 | 2013-12-18 | 優久雄 片山 | Coal gasification method |
| CA2979119A1 (en) * | 2015-04-23 | 2016-10-27 | Lg Fuel Cell Systems Inc. | Modular fuel cell system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR710298A (en) * | 1931-02-25 | 1931-08-19 | Analyzer, in particular for electrolysis of pressurized water | |
| CA933488A (en) * | 1971-03-10 | 1973-09-11 | Chemetics International Ltd. | Chlorate manufacturing apparatus |
| FR2394620A1 (en) * | 1977-06-15 | 1979-01-12 | Electricite De France | Appts. for prod. of gas by electrolysis of liq. - used esp. for the prodn. of hydrogen in pressure vessel using off-peak power station electricity |
| JPS6477880A (en) * | 1987-09-18 | 1989-03-23 | Toshiba Corp | Fuel cell |
| DE3837354A1 (en) * | 1988-11-03 | 1990-05-10 | Werner Ziem | Method and appliance for safeguarding a high-pressure water electrolysis system |
-
1993
- 1993-09-15 DE DE4331383A patent/DE4331383A1/en not_active Withdrawn
-
1994
- 1994-08-10 CA CA002129879A patent/CA2129879A1/en not_active Abandoned
- 1994-08-12 FR FR9409987A patent/FR2710076A1/en active Pending
- 1994-09-14 NO NO943418A patent/NO943418L/en unknown
- 1994-09-16 JP JP6246754A patent/JPH0790661A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NO943418D0 (en) | 1994-09-14 |
| JPH0790661A (en) | 1995-04-04 |
| FR2710076A1 (en) | 1995-03-24 |
| DE4331383A1 (en) | 1995-03-16 |
| NO943418L (en) | 1995-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |