US2541635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovering catalyst in oil vapors
Assignee: Standard Oil Development Co
•
Filing: 1946-09-28
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Granted: 1951-02-13
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Expires: 1966-09-28
Abstract
No abstract record available.
Inventors
- 👤 Marion W Boyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:28
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1881; B01J8/189; Y; Y10; Y10S; Y10S159/00; Y10S159/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A SYSTEM WHEREIN HYDROCARBONS ARE CONTACTED AS VAPORS WITH FINELY DIVIDED CATALYST IN A TREATING ZONE AND THE BULK OF THE CATALYST IS REMOVED FROM VAPOROUS REACTION PRODUCTS IN A DRY SEPARATION STEP AND THE VAPOROUS REACTION PRODUCTS STILL CONTAIN SOME ENTRAINED CATALYST, THE STEPS WHICH COMPRISE PASSING THE VAPOROUS REACTION PRODUCTS AND ENTRAINED CATALYST TO A QUENCHING AND SCRUBBING ZONE WHEREIN THE VAPOROUS REACTION PRODUCTS ARE COOLED WITH A QUENCHING AND SCRUBBING OIL TO CONDENSE THE HIGHEST BOILING CONSTITUENTS IN THE VAPOROUS REACTION PRODUCTS AND WASH OUT ENTRAINED CATALYST, FRACTIONATING THE UNCONDENSED VAPORS TO SEPARATE DESIRED LOWER BOILING HYDROCARBONS FROM LIQUID HIGHER BOILING HYDROCARBONS, PASSING THE LAST MENTIONED LIQUID HIGHER BOILING HYDROCARBONS TO SAID SCRUBBING AND QUENCHING ZONE, PASSING SAID CONDENSED HIGHEST BOILING CONSTITENTS AND WASHED-OUT CATALYST TO A SETTING ZONE TO FORM A MORE CONCENTRATED SLURRY, WITHDRAWING A SLURRY FROM THE BOTTOM PORTION OF
Claim 2
Dependent Claim
147 words
IN A SYSTEM WHEREIN HYDROCARBONS ARE CONTACTED AS VAPORS WITH FINELY DIVIDED CATALYST IN A TREATING ZONE AND THE BULK OF THE CATALYST IS REMOVED FROM VAPOROUS REACTION PRODUCTS IN A DRY SEPARATION STEP AND THE VAPOROUS REACTION PRODUCTS STILL CONTAIN SOME ENTRAINED CATALYST, THE STEPS WHICH COMPRISE PASSING THE VAPOROUS REACTION PRODUCTS AND ENTRAINED CATALYST TO A QUENCHING AND SCRUBBING ZONE WHEREIN THE VAPOROUS REACTION PRODUCTS ARE COOLED WITH A QUENCHING AND SCRUBBING OIL TO CONDENSE THE HIGHEST BOILING CONSTITUENTS IN THE VAPOROUS REACTION PRODUCTS AND WASH OUT ENTRAINED CATALYST, FRACTIONATING THE UNCONDENSED VAPORS TO SEPARATE DESIRED LOWER BOILING HYDROCARBONS FROM LIQUID HIGHER BOILING HYDROCARBONS, PASSING THE LAST MENTIONED LIQUID HIGHER BOILING HYDROCARBONS TO SAID SCRUBBING AND QUENCHING ZONE, PASSING SAID CONDENSED HIGHEST BOILING CONSTITENTS AND WASHED-OUT CATALYST TO A SETTING ZONE TO FORM A MORE CONCENTRATED SLURRY, WITHDRAWING A SLURRY FROM THE BOTTOM PORTION OF
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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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |