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US4182662A
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Method of forming hydrogen
Assignee: Energy Development Associates Inc
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Filing: 1978-07-19
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Granted: 1980-01-08
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Expires: 1998-07-19
Abstract
Abstract A method of forming hydrogen by electrolysis in a cell containing a hydrohalic acid produced from a reaction process using carbon particles as an input energy source wherein the acid for electrolysis is produced by reacting the electrolysis separated halogen with water and carbon particles in a reaction area communicated with the electrolysis cell. The reaction can also be made in the presence of a catalyst.
Inventors
- 👤 Thomas G. Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:46
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/01; C01B7/017; C25; C25B; C25B1/00; C25B1/01; C25B1/02
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
203 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using oxidation of carbon particles as an input energy source in a solution water, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collection area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by dissolving the electrochemically released halogen at the halogen electrode into said halogen acid solution at said halogen collecting area and reacting said dissolved halogen in a reaction area communicated with said halogen collecting area with carbon particles and solution water while said reaction area is at a reaction temperature above ambient temperature, and is agitated to maintain said carbon particles in suspension; (d) applying a driving voltage across said electrode, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen for said hydrogen collecting area of said cell.
Claim 2
Independent Claim
203 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using oxidation of carbon particles as an input energy source in a solution water, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collection area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by dissolving the electrochemically released halogen at the halogen electrode into said halogen acid solution at said halogen collecting area and reacting said dissolved halogen in a reaction area communicated with said halogen collecting area with carbon particles and solution water while said reaction area is at a reaction temperature above ambient temperature, and is agitated to maintain said carbon particles in suspension; (d) applying a driving voltage across said electrode, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen for said hydrogen collecting area of said cell.
Claim 3
Dependent Claim
16 words
The method as defined in claim 1 wherein said carbon particles are formed from ungraphitized carbon.
Claim 4
Dependent Claim
19 words
The method as defined in claim 2 wherein said acid is hydriodic acid having said known electrode decomposition voltage.
Claim 5
Dependent Claim
32 words
The method as defined in claim 3 including the use of a second halogen acid to said electrolyte, said second halogen acid having a decomposition voltage substantially greater than said driving voltage.
Claim 6
Dependent Claim
15 words
The method as defined in claim 4 wherein said second halogen acid is hydrochloric acid.
Claim 7
Dependent Claim
23 words
The method as defined in claim 2 wherein said carbon particle size is such that said particles pass through a 6 mesh screen.
Claim 8
Dependent Claim
32 words
The method as defined in claim 2 including the addition of a second halogen acid to said electrolyte, said second halogen acid having a decomposition voltage substantially greater than said driving voltage.
Claim 9
Dependent Claim
34 words
The method as defined in claim 2 including the additional steps of: (f) pretreating said particles by passing them through a solution of nitric acid; and, (g) washing said nitric acid from said particles.
Claim 10
Dependent Claim
19 words
The method as defined in claim 1 wherein said acid is hydriodic acid having said known electrode decomposition voltage.
Claim 11
Dependent Claim
32 words
The method as defined in claim 9 including the use of a second halogen acid to said electrolyte, said second halogen acid having a decomposition voltage substantially greater than said driving voltage.
Claim 12
Dependent Claim
15 words
The method as defined in claim 10 wherein said second halogen acid is hydrochloric acid.
Claim 13
Dependent Claim
23 words
The method as defined in claim 1 wherein said carbon particle size is such that said particles pass through a 6 mesh screen.
Claim 14
Dependent Claim
32 words
The method as defined in claim 1 including the use of a second halogen acid to said eletrolyte, said second halogen acid having a decomposition voltage substantially greater than said driving voltage.
Claim 15
Dependent Claim
28 words
The method as defined in claim 1 wherein said reaction temperature is in the general range of 80° C. to the boiling temperature of said halogen acid solution.
Claim 16
Dependent Claim
25 words
The method as defined in claim 1 including the additional step of: (f) circulating said electrolyte through said reaction zone for maintaining said reaction temperature.
Claim 17
Dependent Claim
34 words
The method as defined in claim 1 including the additional steps of: (f) pretreating said particles by passing them through a solution of nitric acid; and, (g) washing said nitric acid from said particles.
Claim 18
Independent Claim
211 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using electrically released halogen dissolved in the solution, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid and a solution water in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by dissolving substantially all of the electrochemically released halogen at the halogen electrode into said halogen acid solution at said halogen collecting area and reacting said dissolved halogen in a reaction area communicated with said halogen collecting area with the solution water in the presence of a catalyst selected from the group consisting of graphitized carbon, ruthenised titanium and platinised titanium while said reaction area is at a reaction temperature above ambient temperature; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 19
Independent Claim
211 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using electrically released halogen dissolved in the solution, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid and a solution water in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by dissolving substantially all of the electrochemically released halogen at the halogen electrode into said halogen acid solution at said halogen collecting area and reacting said dissolved halogen in a reaction area communicated with said halogen collecting area with the solution water in the presence of a catalyst selected from the group consisting of graphitized carbon, ruthenised titanium and platinised titanium while said reaction area is at a reaction temperature above ambient temperature; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 20
Dependent Claim
32 words
The method as defined in claim 17 including the use of a second halogen acid to said electrolyte, said second halogen acid having a decomposition voltage substantially greater than said driving voltage.
Claim 21
Dependent Claim
27 words
The method as defined in claim 17 wherein said reaction temperature is in the general range of 80° C. to the boiling temperature of said halogen acid.
Claim 22
Dependent Claim
25 words
The method as defined in claim 17 including the additional step of: (f) circulating said electrolyte through said reaction zone for maintaining said reaction temperature.
Claim 23
Independent Claim
187 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using oxidation of carbon particles as an input energy source, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid and a solution water in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by the sub-steps of: (1) dissolving the electrochemically released halogen at the halogen electrode into said halogen acid; (2) reacting said dissolved halogen in a reaction area with the solution water and carbon particles at a reaction temperature not exceeding generally the boiling temperature of said electrolyte; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 24
Independent Claim
187 words
A method of forming hydrogen by electrolysis of a halogen acid solution produced from a reaction process using oxidation of carbon particles as an input energy source, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode for producing electrochemically released halogen in a halogen collecting area of said cell; (b) providing a solution of said halogen acid and a solution water in said cell, said solution forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen acid electrolyte by the sub-steps of: (1) dissolving the electrochemically released halogen at the halogen electrode into said halogen acid; (2) reacting said dissolved halogen in a reaction area with the solution water and carbon particles at a reaction temperature not exceeding generally the boiling temperature of said electrolyte; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 25
Independent Claim
145 words
A method of forming hydrogen by electrolysis of a hydrogen halide produced from a reaction process using ungraphitized carbon particles as an input energy source, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode in a halogen collecting area of said cell; (b) providing said hydrogen halide in said cell, said hydrogen halide forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen halide by reacting halogen released at said halogen electrode in a reaction area with the water and ungraphitized carbon particles; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 26
Independent Claim
145 words
A method of forming hydrogen by electrolysis of a hydrogen halide produced from a reaction process using ungraphitized carbon particles as an input energy source, said method comprising the steps of: (a) providing an electrolysis cell with a hydrogen electrode in a hydrogen collecting area of said cell and a halogen electrode in a halogen collecting area of said cell; (b) providing said hydrogen halide in said cell, said hydrogen halide forming a liquid electrolyte with a known total decomposition electrode voltage and electrically connecting said electrodes; (c) continuously producing said halogen halide by reacting halogen released at said halogen electrode in a reaction area with the water and ungraphitized carbon particles; (d) applying a driving voltage across said electrodes, said driving voltage being at least said known total decomposition electrode voltage; and, (e) removing said hydrogen from said hydrogen collecting area of said cell.
Claim 27
Dependent Claim
15 words
A method as defined in claim 22 wherein said hydrogen halide is in gaseous form.
Claim 28
Dependent Claim
16 words
A method as defined in claim 22 wherein said hydrogen halide is in an aqueous solution.
References Cited (Backward Citations)
US3336209A
Cited
US3458411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-01-07 | 1983-07-09 | 1984-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-07 | 1987-07-09 | 1988-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-07 | 1991-07-09 | 1992-01-08 | $7700.00 | Window Closed / Lapsed |