US2851398A
Expired / Lapsed
US
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High pressure chlorine reactivation of alumina supported platinum catalysts
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-12-24
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Granted: 1958-09-09
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Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Edward J Gornowski
- 👤 Jr Wilson C Rich
- 👤 Jr Henry Ernst
- 👤 Robert C Morbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:01
CPC Classifications
C; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/085; B; B01; B01J; B01J23/00; B01J23/90; B01J23/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A FIXED BED PROCESS FOR HYDROFORMING PETROLEUM FRACTIONS AT A PRESSURE IN THE RANGE OF 50 TO 1000 P.S.I.G. USING AN ALUMINA SUPPORTED HYDROFORMING PLATINUM CATALYST WHICH BECOMES DEACTIVATED DURING THE PROCESS ANS CONTAINS CARBONACEOUS DEPOSITS WHICH ARE BURNED OFF BY OXIDATION IN A REGENERATION STEP AT ELEVATED TEMPERATURES AND PRESSURES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF VENTING TO ATMOSPHERIC PRESSURE THE REACTOR CONTAINING SAID HOT REGENERATED CATALYST AT A TEMPERATURE IN THE RANGE OF 600*C TO 1200*F., BUILDING UP THE PRESSURE IN THE RE-
Claim 2
Dependent Claim
87 words
IN A FIXED BED PROCESS FOR HYDROFORMING PETROLEUM FRACTIONS AT A PRESSURE IN THE RANGE OF 50 TO 1000 P.S.I.G. USING AN ALUMINA SUPPORTED HYDROFORMING PLATINUM CATALYST WHICH BECOMES DEACTIVATED DURING THE PROCESS ANS CONTAINS CARBONACEOUS DEPOSITS WHICH ARE BURNED OFF BY OXIDATION IN A REGENERATION STEP AT ELEVATED TEMPERATURES AND PRESSURES, THE IMPROVEMENT WHICH COMPRISES THE STEPS OF VENTING TO ATMOSPHERIC PRESSURE THE REACTOR CONTAINING SAID HOT REGENERATED CATALYST AT A TEMPERATURE IN THE RANGE OF 600*C TO 1200*F., BUILDING UP THE PRESSURE IN THE RE-
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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) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |