Patent US3650697A successfully refreshed from Google Patents.
US3650697A
Expired / Lapsed
US
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Method of hydrogen production
Assignee: Rand Development Corp
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Filing: 1969-11-25
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Granted: 1972-03-21
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Expires: 1989-11-25
Abstract
Abstract A process for the production of hydrogen from a hydrocarbon, and more particularly methane, by the reaction of the hydrocarbon with steam in the presence of a catalyst. The catalyst consists essentially of a mixture of activated Raney nickel, iron, activated Raney cobalt, zirconium and aluminum. The catalyst may be used in a 50-50 mixture of quartz sand or alumina and catalyst. The process is carried out at a relatively low temperature of between approximately 300* to 550* C.
Inventors
- 👤 Franz Goebel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:21
CPC Classifications
B; B01; B01J; B01J25/00; B01J25/02; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/40; C01B2203/00; C01B2203/10; C01B2203/1041; C01B2203/1047; C01B2203/1052; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
69 words
The process in accordance with claim 1 wherein said nickel and said cobalt are approximately 350 mesh or finer as measured on the U.S. Standard Seive Series, said iron ore is of approximately 250 to 300 mesh or finer as measured on the U.S. Standard Seive Series, and said zirconium and said aluminum are approximately 250 to 300 mesh or finer as measured on the U.S. Standard Seive series.
Claim 2
Dependent Claim
21 words
A process in accordance with claim 1 wherein said catalyst is mixed with an equal amount by weight of quartz sand.
Claim 3
Dependent Claim
23 words
A process in accordance with claim 1 wherein said catalyst is mixed with an equal amount by weight of alumina in particle form.
Claim 4
Dependent Claim
27 words
A process in accordance with claim 1 wherein the catalyst contains a pRomoter in an amount of approximately 1 to 1.5 parts by weight of nickel boride.
Claim 5
Dependent Claim
39 words
A process in accordance with claim 1 including the step of passing the hydrocarbon through a bed of charcoal to filter out sulphur and other impurities in said hydrocarbon prior to exposing the hydrocarbon to the steam and catalyst.
Claim 6
Dependent Claim
18 words
A process in accordance with claim 1 wherein approximately 100 percent of the hydrocarbon is converted into hydrogen.
Claim 7
Dependent Claim
40 words
A process in accordance with claim 1 including the step of introducing hydrogen into the gas stream prior to exposing the latter to the steam and catalyst, for combining with any sulfur in the gas stream to form hydrogen sulfide.
Claim 8
Dependent Claim
59 words
A process in accordance with claim 1 wherein the gas stream is passed through a cleaning system after being exposed to the steam and catalyst, said cleaning system including a water bath stage, and a stage of ammonium hydroxide solution and a stage of potassium hydroxide solution for cleaning any hydrogen sulfide and carbon dioxide from the gas stream.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |