Patent US2531356A successfully refreshed from Google Patents.
US2531356A
Expired / Lapsed
US
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Hydrocarbon conversion process
Assignee: ExxonMobil Oil Corp
•
Filing: 1947-09-27
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Granted: 1950-11-21
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Expires: 1967-09-27
Abstract
No abstract record available.
Inventors
- 👤 Louis P Evans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:28
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A METHOD FOR CONVERSION OF ASPHALT CONTAINING LIQUID HYDROCARBON FEEDS AT ELEVATED TEMPERATURES WHICH COMPRISES: CONTACTING THE ASPHALT CONTAINING FEED WITH A POROUS PARTICLEFORM CONTACT MATERIAL HAVING THE STRUCTURE OF AN INORGANIC OXIDE GEL, IN WHICH THE TOTAL MACROPORE VOLUME IS LESS THAN ABOUT 30 PER CENT OF THE TOTAL PORE VOLUME AND IN WHICH THE PARTICLES ARE SUBSTANTIALLY ALL LARGER THAN ABOUT 30 MESH, AT A TEMPERATURE BELOW ABOUT 500*F., WHEREBY THE OILY CONSTITUENTS OF SAID FEED ARE SORBED IN THE PORES OF SAID CONTACT MATERIAL WHILE THE ASPHALT CONSTITUENTS REMAIN SUBSTANTIALLY UNSORBED; EFFECTING A SUBSTANTIAL SEPARATION OF THE CONTACT MATERIAL BEARING SORBED OILY CONSTITUENTS FROM THE UNSORBED MATERIAL AND HEATING SAID CONTACT MATERIAL TO A TEMPERATURE SUITABLE FOR THE DESIRED CONVERSION OF SAID OILY CONSTITUENTS.
Claim 2
Independent Claim
127 words
A METHOD FOR CONVERSION OF ASPHALT CONTAINING LIQUID HYDROCARBON FEEDS AT ELEVATED TEMPERATURES WHICH COMPRISES: CONTACTING THE ASPHALT CONTAINING FEED WITH A POROUS PARTICLEFORM CONTACT MATERIAL HAVING THE STRUCTURE OF AN INORGANIC OXIDE GEL, IN WHICH THE TOTAL MACROPORE VOLUME IS LESS THAN ABOUT 30 PER CENT OF THE TOTAL PORE VOLUME AND IN WHICH THE PARTICLES ARE SUBSTANTIALLY ALL LARGER THAN ABOUT 30 MESH, AT A TEMPERATURE BELOW ABOUT 500*F., WHEREBY THE OILY CONSTITUENTS OF SAID FEED ARE SORBED IN THE PORES OF SAID CONTACT MATERIAL WHILE THE ASPHALT CONSTITUENTS REMAIN SUBSTANTIALLY UNSORBED; EFFECTING A SUBSTANTIAL SEPARATION OF THE CONTACT MATERIAL BEARING SORBED OILY CONSTITUENTS FROM THE UNSORBED MATERIAL AND HEATING SAID CONTACT MATERIAL TO A TEMPERATURE SUITABLE FOR THE DESIRED CONVERSION OF SAID OILY CONSTITUENTS.
References Cited (Backward Citations)
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US1278023A
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US1568018A
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US1447297A
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US2188007A
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US2382755A
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US2354355A
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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) | 1953-11-20 | 1954-05-22 | 1954-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-20 | 1958-05-22 | 1958-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-20 | 1962-05-22 | 1962-11-21 | $7700.00 | Window Closed / Lapsed |