US5096683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of combusting an H2 S-containing gas
Assignee: GEA Group AG
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Filing: 1990-07-27
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Granted: 1992-03-17
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Expires: 2010-07-27
Abstract
Abstract An H 2 S-containing gas is combusted with oxygen in at least one burner, which discharges into a combustion chamber. The resulting mixed gases contain H 2 S, SO 2 , free hydrogen and elementary sulfur and are at temperatures of about 900° to 2000° C. At temperatures of about 900° to 2000° C. at least part of the free hydrogen is removed from said mixed gases. The free hydrogen may be removed from the mixed gases, e.g., through membranes.
Inventors
- 👤 Manfred Kriebel
- 👤 Herbert Fischer
- 👤 Ulrich Sander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:58
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/0404; C01B17/0413; C01B3/00; C01B3/02; C01B3/50; C01B3/501; C01B2203/00; C01B2203/04; C01B2203/0405; C01B2203/041; C01B2203/0465; C01B2203/0485
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
80 words
A process which comprises combusting an H 2 S-containing gas with oxygen at a temperature of about 900° to 2000° C. in a chamber containing a porous membrane of gamma-alumina or corundum, through which hydrogen can diffuse, the combustion producing a mixed gas containing H 2 S, SO 2 , free hydrogen and elementary sulfur, diffusing hydrogen through said membrane and withdrawing at said temperature the hydrogen diffused through said membrane, and removing the hydrogen-depleted mixed gas from said chamber.
Claim 2
Dependent Claim
80 words
A process which comprises combusting an H 2 S-containing gas with oxygen at a temperature of about 900° to 2000° C. in a chamber containing a porous membrane of gamma-alumina or corundum, through which hydrogen can diffuse, the combustion producing a mixed gas containing H 2 S, SO 2 , free hydrogen and elementary sulfur, diffusing hydrogen through said membrane and withdrawing at said temperature the hydrogen diffused through said membrane, and removing the hydrogen-depleted mixed gas from said chamber.
Claim 3
Dependent Claim
21 words
A process according to claim 1, wherein at least 20% of the free hydrogen contained in the mixed gas is removed.
Claim 4
Dependent Claim
39 words
A process according to claim 1, including the additional steps of cooling the mixed gas to a temperature of at most 280° C. after free hydrogen has been removed, condensing and at least in part removing therefrom elementary sulfur.
Claim 5
Dependent Claim
27 words
A process according to claim 1, including the further steps of subjecting the mixed gas after removing the hydrogen at least in part to the Claus process.
References Cited (Backward Citations)
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EP0160332A2
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US4575453A
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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) | 1995-03-17 | 1995-09-16 | 1996-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-17 | 1999-09-16 | 2000-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-17 | 2003-09-16 | 2004-03-17 | $7700.00 | Window Closed / Lapsed |