US4466807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of a gas containing monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbon
Assignee: SKF Steel Engineering AB
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Filing: 1981-11-25
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Granted: 1984-08-21
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Expires: 2001-11-25
Abstract
Abstract In a process for manufacturing a gas substantially containing carbon monoxide and hydrogen gas from a starting material containing carbon and/or hydrocarbon, the starting material is injected in powder or liquid form together with an oxidizing agent and slag former in a combustion zone while heat energy is simultaneously supplied. The combustion zone is formed in the lower portion of a shaft filled with particulate, solid, carbonaceous material and sulphur-binding slag former.
Inventors
- 👤 Sven Santen
- 👤 Borje Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:05
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C10; C10J; C10J3/00; C10J3/02; C10J3/20; C10J3/06; C10J3/08; C10J3/72; C10J3/723; C10J2200/00; C10J2200/15; C10J2200/156; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0943; C10J2300/0953; C10J2300/0959; C10J2300/0973; C10J2300/0983; C10J2300/12; C10J2300/123; C10J2300/1238
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
A method of manufacturing a gas containing carbon monoxide and hydrogen gas in a shaft reactor from a starting material containing carbon and/or hydrocarbon, comprising injecting the starting material in powder or liquid form together with an oxidizing agent and slag former into a combustion zone in the lower portion of the shaft reactor, said combustion zone being formed in the lower portion of said shaft by injecting a plasma gas from a plasma generator into said lower portion, said shaft being maintained substantially filled with particulate, solid, carbonaceous material and sulphur-binding slag former.
Claim 2
Independent Claim
94 words
A method of manufacturing a gas containing carbon monoxide and hydrogen gas in a shaft reactor from a starting material containing carbon and/or hydrocarbon, comprising injecting the starting material in powder or liquid form together with an oxidizing agent and slag former into a combustion zone in the lower portion of the shaft reactor, said combustion zone being formed in the lower portion of said shaft by injecting a plasma gas from a plasma generator into said lower portion, said shaft being maintained substantially filled with particulate, solid, carbonaceous material and sulphur-binding slag former.
Claim 3
Dependent Claim
16 words
A method according to claim 1, in which the sulphur-binding slag former is lime or dolomite.
Claim 4
Dependent Claim
19 words
A method according to claim 1 in which the oxidizing agent is a gas mixture containing oxygen and/or water.
Claim 5
Dependent Claim
39 words
A method according to claim 1 including controlling the temperature and hydrogen content of the gas manufactured in the shaft by supplying water to the upper part of the shaft, and utilizing the physical heat content of the gas.
Claim 6
Independent Claim
32 words
A method according to any one of the preceding claims, in which control of speed of combustion and temperature is achieved by controlling the supply of heat energy to the combustion zone.
Claim 7
Dependent Claim
20 words
A method according to claim 5, in which the control is at least partially performed by heating the oxidizing agent.
Claim 8
Dependent Claim
16 words
A method according to claim 5, in which the heating is performed in the plasma generator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-21 | 1988-02-20 | 1988-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-21 | 1992-02-20 | 1992-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-21 | 1996-02-20 | 1996-08-21 | $7700.00 | Window Closed / Lapsed |