US2838461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst regeneration
Assignee: Houdry Process Corp
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Filing: 1953-01-16
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Granted: 1958-06-10
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Expires: 1973-01-16
Abstract
No abstract record available.
Inventors
- 👤 Kollgaard Reyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:51
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125; B01J38/00; B01J38/04; B01J38/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN A HYDROCARBON CONVERSION PROCESS WHEREIN GRANULAR CONTACT MATERIAL CONTAINED WITH A CARBONACEOUS DEPOSIT IS REGENERATED BY COMBUSTON OF SUCH DEPOSIT IN THE PRESENCE OF OXYGEN-CONTAINING GAS WHILE GRAVITATING AS A COMPACT MOVING MASS THROUGH A REGENERATOR, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF: INTRODUCING SAID CONTACT MATERIAL AS A FIRST PLURALITY OF CONFINED COMPACT MOVING COLUMNS INTO AN INITIAL CONTACT ZONE, INTORDUCING OXYGEN-CONTAINING GAS INTO SAID INITIAL CONTACT ZONE, WITHDRAWING SAID CONTACT MATERIAL IN ADMIXTURE WITH SAID OXYGEN-CONTAINING GAS FROM SAID INITIAL CONTACT ZONE AS A SECOND PLURALITY OF CONFINED COMPACT MOVING COLUMNS INDIVIDUALLY ALIGNED WITH SAID FIRST PLURALITY AND CLOSELY SPACED THEREFROM, SAID SECOND PLURALITY OF COLUMNS COMPRISING INITIAL CONCURRENT-FLOW REGENERATION
Claim 2
Dependent Claim
113 words
IN A HYDROCARBON CONVERSION PROCESS WHEREIN GRANULAR CONTACT MATERIAL CONTAINED WITH A CARBONACEOUS DEPOSIT IS REGENERATED BY COMBUSTON OF SUCH DEPOSIT IN THE PRESENCE OF OXYGEN-CONTAINING GAS WHILE GRAVITATING AS A COMPACT MOVING MASS THROUGH A REGENERATOR, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF: INTRODUCING SAID CONTACT MATERIAL AS A FIRST PLURALITY OF CONFINED COMPACT MOVING COLUMNS INTO AN INITIAL CONTACT ZONE, INTORDUCING OXYGEN-CONTAINING GAS INTO SAID INITIAL CONTACT ZONE, WITHDRAWING SAID CONTACT MATERIAL IN ADMIXTURE WITH SAID OXYGEN-CONTAINING GAS FROM SAID INITIAL CONTACT ZONE AS A SECOND PLURALITY OF CONFINED COMPACT MOVING COLUMNS INDIVIDUALLY ALIGNED WITH SAID FIRST PLURALITY AND CLOSELY SPACED THEREFROM, SAID SECOND PLURALITY OF COLUMNS COMPRISING INITIAL CONCURRENT-FLOW REGENERATION
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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |