Patent US2905523A successfully refreshed from Google Patents.
US2905523A
Expired / Lapsed
US
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Method for the elimination of finely divided carbonaceous material from gas streams
Assignee: Oxy Catalyst Inc
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Filing: 1955-12-19
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Granted: 1959-09-22
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Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Eugene J Houdry
- 👤 Cletus T Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:08
CPC Classifications
B; B01; B01D; B01D49/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A METHOD FOR TREATING A GAS STREAM CONTAINING SUSPENDED CARBONACEOUS SOLIDS AND COMBUSTIBLE GASES IN SUBSTANTIAL CONCENTRATIONS BUT LESS THAN THOSE REQUIRED TO PROVIDE A MIXTURE WHICH IS FLAMMABLE AT ORDINARY TEMPERATURES COMPRISING THE STEPS OF CATALYTICALLY OXIDIZING THE COMBUSTIBLE GASES IN SAID STREAM SO AS TO THEREBY INCREASE ITS TEMPERATURE TO THE ORDER OF FROM 1200*F. TO 1600*F. BY CONTACTING SAID STREAM WITH AN OXIDATION CATALYST, AND THEREAFTER HEATING SAID STREAM OUT OF CONTACT WITH SAID CATALYST TO A TEMPERATURE OF THE ORDER OF 1800*F. TO 2200*F. AT WHICH EFFECTIVE OXIDATION OF SAID CARBONACEOUS SOLIDS TAKES PLACE IN THE PRESENCE OF CERAMIC SURFACES, AND PASSING THE THUS HEATED STREAM INTO CONTACT WITH EXTENDED CERAMIC SURFACES SO AS THEREBY TO EFFECT SUBSTANTIALLY COMPLETE ELIMINATION OF SAID CARBONACEOUS SOLIDS.
Claim 2
Independent Claim
128 words
A METHOD FOR TREATING A GAS STREAM CONTAINING SUSPENDED CARBONACEOUS SOLIDS AND COMBUSTIBLE GASES IN SUBSTANTIAL CONCENTRATIONS BUT LESS THAN THOSE REQUIRED TO PROVIDE A MIXTURE WHICH IS FLAMMABLE AT ORDINARY TEMPERATURES COMPRISING THE STEPS OF CATALYTICALLY OXIDIZING THE COMBUSTIBLE GASES IN SAID STREAM SO AS TO THEREBY INCREASE ITS TEMPERATURE TO THE ORDER OF FROM 1200*F. TO 1600*F. BY CONTACTING SAID STREAM WITH AN OXIDATION CATALYST, AND THEREAFTER HEATING SAID STREAM OUT OF CONTACT WITH SAID CATALYST TO A TEMPERATURE OF THE ORDER OF 1800*F. TO 2200*F. AT WHICH EFFECTIVE OXIDATION OF SAID CARBONACEOUS SOLIDS TAKES PLACE IN THE PRESENCE OF CERAMIC SURFACES, AND PASSING THE THUS HEATED STREAM INTO CONTACT WITH EXTENDED CERAMIC SURFACES SO AS THEREBY TO EFFECT SUBSTANTIALLY COMPLETE ELIMINATION OF SAID CARBONACEOUS SOLIDS.
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) | 1962-09-21 | 1963-03-23 | 1963-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-21 | 1967-03-23 | 1967-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-21 | 1971-03-23 | 1971-09-22 | $7700.00 | Window Closed / Lapsed |