US3104959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization of coke oven gases
Assignee: Bergwerksverband GmbH
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Filing: 1956-11-23
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Granted: 1963-09-24
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Expires: 1976-11-23
Abstract
No abstract record available.
Inventors
- 👤 Grosskinsky Otto
- 👤 Huck Georg
- 👤 Klempt Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:13
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD OF REMOVING HYDROGEN SULFIDE AND AMMONIA FROM COAL DISTILLATION GASES WHICH COMPRISES COOLING SAID GASES WHEREBY GAS LIQUOR IS OBTAINED, SCRUBBING SAID COOLED GASES IN A PRELIMINARY SCRUBBING OPERATION WITH DETARRED COLLECTING MAIN CONDENSATES WHILE MAINTAINING A GAS VELOCITY FROM ABOUT 1 TO ABOUT 5 METERS PER SECOND, COMPRESSING AND COOLING THE PRE-SCRUBBED GASES AND SCRUBBING THEM IN A SECOND PRESSURE SCRUBBING STAGE WITH THE LIQUID EFFLUENT OF THE FIRST SCRUBBING STAGE MAINTAINING THE SAME GAS VELOCITY, SUBJECTING THE GASES EMERGING FROM THE SECOND SCRUBBING STAGE TO A FRESH WATER TERMINAL AMMONIA SCRUBBING OPERATION TO REMOVE THE REMAINDER OF AMMONIA, CONTACTING CURDE GAS WITH THE LIQUID EFFLUENT OF SAID TERMINAL AMMONIA SCRUBBING OPERATION AND WITH THE GAS LIQUOR, WITHDRAWING AND COOLING THE COLLECTING MAIN CONDESNATE THUS OBTAINED, SAID COLLECTING MAIN CONDENSATE BEING UTILIZED IN SAID PRELIMINARY SCRUBBING OPERATION.
Claim 2
Independent Claim
140 words
THE METHOD OF REMOVING HYDROGEN SULFIDE AND AMMONIA FROM COAL DISTILLATION GASES WHICH COMPRISES COOLING SAID GASES WHEREBY GAS LIQUOR IS OBTAINED, SCRUBBING SAID COOLED GASES IN A PRELIMINARY SCRUBBING OPERATION WITH DETARRED COLLECTING MAIN CONDENSATES WHILE MAINTAINING A GAS VELOCITY FROM ABOUT 1 TO ABOUT 5 METERS PER SECOND, COMPRESSING AND COOLING THE PRE-SCRUBBED GASES AND SCRUBBING THEM IN A SECOND PRESSURE SCRUBBING STAGE WITH THE LIQUID EFFLUENT OF THE FIRST SCRUBBING STAGE MAINTAINING THE SAME GAS VELOCITY, SUBJECTING THE GASES EMERGING FROM THE SECOND SCRUBBING STAGE TO A FRESH WATER TERMINAL AMMONIA SCRUBBING OPERATION TO REMOVE THE REMAINDER OF AMMONIA, CONTACTING CURDE GAS WITH THE LIQUID EFFLUENT OF SAID TERMINAL AMMONIA SCRUBBING OPERATION AND WITH THE GAS LIQUOR, WITHDRAWING AND COOLING THE COLLECTING MAIN CONDESNATE THUS OBTAINED, SAID COLLECTING MAIN CONDENSATE BEING UTILIZED IN SAID PRELIMINARY SCRUBBING OPERATION.
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |