US2845409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst regeneration
Assignee: Phillips Petroleum Co
•
Filing: 1953-09-18
•
Granted: 1958-07-29
•
Expires: 1973-09-18
Abstract
No abstract record available.
Inventors
- 👤 Edward N Pennington
- 👤 John E Cottle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:09
CPC Classifications
B; B01; B01J; B01J38/00; B01J38/04; B01J38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR REGENERATING A PLURALITY OF CATALYST MASSES IN USE IN A CONVERSION PROCESS WHICH IS OPERATED AT A SUBSTANTIALLY LOWER TEMPERATURE THAN THE TEMPERATURE OF REGENERATION, UNDER CONDITIONS HWHICH CAUSE CONTAMINATION OF THE CATALYST WITH COMBUSTIBLE DEPOSIT AND IN WHICH CONTACT OF THE REGENERATED CATALYST WITH MOISTURE IS DELETERIOUS TO THE CATALYST, WHICH COMPRISES THE STEPS OF; (1) CONTACTING ONE OF THE CONTAMINATED MASSES IN AN ENCLOSED ZONE WITH A DRY MIXTURE OF HOT COMBUSTION GAS AND AIR UNDER COMBUSTION CONDITIONS SO AS TO BURN SAID DEPOSIT FROM SAID CATALYST, WHEREBY THE TEMPERATURE OF THE CATALYST IS RAISED TO A TEMPERATURE SUBSTANTIALLY ABOVE CONVERSION TEMPERATURE; (2) BURNING FUEL IN AN ENCLOSED COMBUSTION ZONE TO FORM COMBUSTION GAS; (3) COOLING SAID COMBUSTION GAS TO A TEMPERATURE AT LEAST AS LOW AS SAID
Claim 2
Dependent Claim
133 words
A PROCESS FOR REGENERATING A PLURALITY OF CATALYST MASSES IN USE IN A CONVERSION PROCESS WHICH IS OPERATED AT A SUBSTANTIALLY LOWER TEMPERATURE THAN THE TEMPERATURE OF REGENERATION, UNDER CONDITIONS HWHICH CAUSE CONTAMINATION OF THE CATALYST WITH COMBUSTIBLE DEPOSIT AND IN WHICH CONTACT OF THE REGENERATED CATALYST WITH MOISTURE IS DELETERIOUS TO THE CATALYST, WHICH COMPRISES THE STEPS OF; (1) CONTACTING ONE OF THE CONTAMINATED MASSES IN AN ENCLOSED ZONE WITH A DRY MIXTURE OF HOT COMBUSTION GAS AND AIR UNDER COMBUSTION CONDITIONS SO AS TO BURN SAID DEPOSIT FROM SAID CATALYST, WHEREBY THE TEMPERATURE OF THE CATALYST IS RAISED TO A TEMPERATURE SUBSTANTIALLY ABOVE CONVERSION TEMPERATURE; (2) BURNING FUEL IN AN ENCLOSED COMBUSTION ZONE TO FORM COMBUSTION GAS; (3) COOLING SAID COMBUSTION GAS TO A TEMPERATURE AT LEAST AS LOW AS SAID
References Cited (Backward Citations)
US2231231A
Cited
US2266095A
Cited
US2310244A
Cited
US2404788A
Cited
US2344770A
Cited
US2406112A
Cited
US2470166A
Cited
US2728754A
Cited
US2702288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |