Patent US1602873A successfully refreshed from Google Patents.
Patent US2608568A successfully refreshed from Google Patents.
US2608568A
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Regeneration of catalyst
Assignee: Phillips Petroleum Co
•
Filing: 1948-04-12
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Granted: 1952-08-26
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Expires: 1968-04-12
Abstract
No abstract record available.
Inventors
- 👤 Hogan John Paul
- 👤 Alvin H Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:03
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/045; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
IN THE HYDROGENATION OF A CARBON OXIDE IN THE PRESENCE OF A SUITABLE CATALYST WHEREIN THE CATALYTIC ACTIVITY OF SAID CATALYST IS DECREASED BY DEPOSITION OF REACTION PRODUCTS THEREON, THE METHOD OF IMPROVING THE CATALYTIC ACTIVITY OF A CATALYST WHOSE ACTIVITY HAS BEEN SO DECREASED WHICH COMPRISES INTERRUPTING THE FLOW OF REACTANTS TO THE REACTION ZONE, SEPARATING THE NORMALLY GASEOUS PHASE FROM THE REACTION ZONE EFFLUENT, RETURNING THUS-SEPARATED GASEOUS PHASE TO SAID REACTION ZONE TO HYDROGENATE THE CARBON MONOXIDE IN SAID GASEOUS PHASE, SEPARATING THE HYDROGEN-RICH CARBON MONOXIDE-FREE GASEOUS PHASE FROM THE EFFLUENT OF THE LAST-NAMED HYDRO-
Claim 2
Dependent Claim
97 words
IN THE HYDROGENATION OF A CARBON OXIDE IN THE PRESENCE OF A SUITABLE CATALYST WHEREIN THE CATALYTIC ACTIVITY OF SAID CATALYST IS DECREASED BY DEPOSITION OF REACTION PRODUCTS THEREON, THE METHOD OF IMPROVING THE CATALYTIC ACTIVITY OF A CATALYST WHOSE ACTIVITY HAS BEEN SO DECREASED WHICH COMPRISES INTERRUPTING THE FLOW OF REACTANTS TO THE REACTION ZONE, SEPARATING THE NORMALLY GASEOUS PHASE FROM THE REACTION ZONE EFFLUENT, RETURNING THUS-SEPARATED GASEOUS PHASE TO SAID REACTION ZONE TO HYDROGENATE THE CARBON MONOXIDE IN SAID GASEOUS PHASE, SEPARATING THE HYDROGEN-RICH CARBON MONOXIDE-FREE GASEOUS PHASE FROM THE EFFLUENT OF THE LAST-NAMED HYDRO-
References Cited (Backward Citations)
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US2231990A
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US2251554A
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US2414276A
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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) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |