Patent US2626288A successfully refreshed from Google Patents.
US2626288A
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Method for bringing a newly charged catalytic reactor on stream
Assignee: Phillips Petroleum Co
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Filing: 1950-01-06
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Granted: 1953-01-20
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Expires: 1970-01-06
Abstract
No abstract record available.
Inventors
- 👤 Ronayne Leo John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:31
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/321; C07C5/322; C07C5/327; C07C5/333; C07C5/3332; Y; Y10; Y10S; Y10S585/00; Y10S585/8995; Y10S585/906; Y10S585/949; Y10S585/951
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
IN THE DEHYDROGENATION OF AN OLEFIN HYDROCARBON, WHEREIN UNDER ON STREAM CONDITIONS SAID HYDROCARBON IS PASSED INTO CONTACT WITH A BED OF PARTICULATE IRON-OXIDE CATALYST IN ADMIXTURE WITH A DILUENT WHEREIN THE RATIO OF DILUENT TO SAID HYDROCARBON IS OF THE ORDER OF ABOUT 18 TO 1 SAID THE NORMAL ON STREAM FLOW RATE THROUGH SAID BED IS OF THE ORDER OF ABOUT 5000 CUBIC FEET PER VOLUME OF CATALYST PER HOUR, THE METHOD OF PRECONDITIONING SAID CATALYST BED WHICH COMPRISES PASSING SAID DILUENT AND SAID HYDROCARBON IN A RATIO OF THE ORDER OF ABOUT 6 TO 1 AND AT A FLOW RATE NOT EXCEEDING ABOUT 500 CUBIC FEET PER VOLUME OF CATALYST PER HOUR FOR A SUBSTANTIAL PERIOD OF TIME THROUGH SAID BED AND CAUSING SAID BUTYLENE TO DEPOSIT COKE UPON SAID CATALYST UNTIL THE INDIVIDUAL PARTICLES THEREOF HAVE BECOME FIXED IN RELATION TO EACH OTHER DUE TO THE BONDING EFFECT OF SAID COKE WHICH HAS BEEN DEPOSITED AND THEN PLACING SAID BED UNDER ON STREAM CONDITIONS.
Claim 2
Dependent Claim
168 words
IN THE DEHYDROGENATION OF AN OLEFIN HYDROCARBON, WHEREIN UNDER ON STREAM CONDITIONS SAID HYDROCARBON IS PASSED INTO CONTACT WITH A BED OF PARTICULATE IRON-OXIDE CATALYST IN ADMIXTURE WITH A DILUENT WHEREIN THE RATIO OF DILUENT TO SAID HYDROCARBON IS OF THE ORDER OF ABOUT 18 TO 1 SAID THE NORMAL ON STREAM FLOW RATE THROUGH SAID BED IS OF THE ORDER OF ABOUT 5000 CUBIC FEET PER VOLUME OF CATALYST PER HOUR, THE METHOD OF PRECONDITIONING SAID CATALYST BED WHICH COMPRISES PASSING SAID DILUENT AND SAID HYDROCARBON IN A RATIO OF THE ORDER OF ABOUT 6 TO 1 AND AT A FLOW RATE NOT EXCEEDING ABOUT 500 CUBIC FEET PER VOLUME OF CATALYST PER HOUR FOR A SUBSTANTIAL PERIOD OF TIME THROUGH SAID BED AND CAUSING SAID BUTYLENE TO DEPOSIT COKE UPON SAID CATALYST UNTIL THE INDIVIDUAL PARTICLES THEREOF HAVE BECOME FIXED IN RELATION TO EACH OTHER DUE TO THE BONDING EFFECT OF SAID COKE WHICH HAS BEEN DEPOSITED AND THEN PLACING SAID BED UNDER ON STREAM CONDITIONS.
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) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |