US3798308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for treating coke oven gas
Assignee: Raymond Kaiser Engineers Inc
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Filing: 1972-01-19
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Granted: 1974-03-19
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Expires: 1992-01-19
Abstract
Abstract THE ELIMINATION OF ATMOSPHERIC POLLUTION RESULTING FROM SULFUR-CONTAINING TAIL GASES PRODUCED IN A HYDROGEN SULFIDE CONVERSION PROCESS ASSOCIATED WITH A COKE OVEN GAS BYPRODUCT RECOVERY SYSTEM IS DESCRIBED. THE SULFUR-CONTAINING COMPONENTS OF THE TAIL GAS ARE REMOVED BY FIRST COMBINING THE TAIL GAS WITH CRUDE COKE OVEN GAS IN THE BYPRODUCT RECOVERY SYSTEM. SULFUR DIOXIDE AND THE OTHER GASEOUS SULFUR-CONTAINING COMPONENTS OF THE TAIL GAS ARE REMOVED FROM THE COMBINED GASES BY THE VARIOUS GASTREATMENT PHASES OF THE BY-PRODUCT RECOVERY SYSTEM OR PASS THROUGH THE SYSTEM AND ARE SUBSEQUENTLY BURNED OR VENTED TO THE ATMOSPHERE AT LESS OBJECTIONABLE CONCENTRATIONS.
Inventors
- 👤 B Tatterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:48
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/50; C; C10; C10K; C10K1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |