Patent US2992906A successfully refreshed from Google Patents.
US2992906A
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Carbon recovery method
Assignee: Texaco Inc
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Filing: 1958-05-29
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Granted: 1961-07-18
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Expires: 1978-05-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Frank E Guptill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:59
CPC Classifications
B; B01; B01D; B01D12/00; C; C09; C09C; C09C1/00; C09C1/44; C09C1/48; C09C1/487; C01; C01P; C01P2004/00; C01P2004/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A METHOD FOR RECOVERING CARBONACEOUS SOLID FROM A GAS STREAM RESULTING FROM REACTION OF A CARBONACEOUS FUEL WITH OXYGEN IN A REACTION ZONE TO PRODUCE A PRODUCT GAS STREAM COMPRISING CARBON MONOXIDE, HYDROGEN, AND ENTRAINED CARBONACEOUS SOLID, WHICH COMPRISES CONTACTING SAID PRODUCT GAS STREAM WITH WATER IN A GAS SCRUBBING ZONE EFFECTING REMOVAL OF SAID CARBONACEOUS SOLID FROM SAID GAS STREAM FORMING A DISPERSION OF CARBONACEOUS SOLID IN WATER, CONTACTING SAID DISPERSION WITH A LIQUID HYDROCARBON HAVING A GRAVITY ABOVE 20* API EFFECTING RESOLUTION OF SAID DISPERSION INTO CLARIFIED WATER AND A SLURRY OF CARBONACEOUS SOLID IN SAID HYDROCARBON, SEPARATING SAID SLURRY AND SAID CLARIFIED WATER, CONTACTING SAID SLURRY WITH A HEAVY FUEL OIL, VAPORIZING SAID HYDROCARBON HAVING A GRAVITY ABOVE 20* API FORMING A RESIDUE SLURRY OF CARBONACEOUS SOLID IN HEAVY FUEL OIL, AND SEPARATELY WITHDRAWING VAPORIZED HYDROCARBON AND RESIDUE SLURRY.
Claim 2
Independent Claim
142 words
A METHOD FOR RECOVERING CARBONACEOUS SOLID FROM A GAS STREAM RESULTING FROM REACTION OF A CARBONACEOUS FUEL WITH OXYGEN IN A REACTION ZONE TO PRODUCE A PRODUCT GAS STREAM COMPRISING CARBON MONOXIDE, HYDROGEN, AND ENTRAINED CARBONACEOUS SOLID, WHICH COMPRISES CONTACTING SAID PRODUCT GAS STREAM WITH WATER IN A GAS SCRUBBING ZONE EFFECTING REMOVAL OF SAID CARBONACEOUS SOLID FROM SAID GAS STREAM FORMING A DISPERSION OF CARBONACEOUS SOLID IN WATER, CONTACTING SAID DISPERSION WITH A LIQUID HYDROCARBON HAVING A GRAVITY ABOVE 20* API EFFECTING RESOLUTION OF SAID DISPERSION INTO CLARIFIED WATER AND A SLURRY OF CARBONACEOUS SOLID IN SAID HYDROCARBON, SEPARATING SAID SLURRY AND SAID CLARIFIED WATER, CONTACTING SAID SLURRY WITH A HEAVY FUEL OIL, VAPORIZING SAID HYDROCARBON HAVING A GRAVITY ABOVE 20* API FORMING A RESIDUE SLURRY OF CARBONACEOUS SOLID IN HEAVY FUEL OIL, AND SEPARATELY WITHDRAWING VAPORIZED HYDROCARBON AND RESIDUE SLURRY.
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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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |