US3055822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for hydrocracking an asphalt residual feed stock
Assignee: Sinclair Research Inc
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Filing: 1959-06-29
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Granted: 1962-09-25
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Expires: 1979-06-29
Abstract
No abstract record available.
Inventors
- 👤 Donald L Honerkamp
- 👤 Charles N Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:49
CPC Classifications
C; C10; C10G; C10G69/00; C10G69/02; C10G69/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A METHOD OF PRODUCING GASOLINE BOILING RANGE PRODUCTS FROM AN ASPHALT RESIDUAL FEEDSTOCK HAVING A PENETRATION OF UP TO ABOUT 250 AT 77* F, WHICH CONSISTS ESSENTIALLY OF CONTACTING SAID ASPHALT RESIDUAL FEEDSTOCK IN THE PRESENCE OF HYDROGEN WITH A HYDROCRACKING CATALYST AT A TEMPERATURE OF ABOUT 760* F, TO 810* F, UNDER A PRESSURE OF ABOUT 2000 TO 3000 P.S.I.G. A WEIGHT HOURLY SPACE VELOCITY OF ABOUT 1 TO 1, A HYDROGEN RATE OF FROM ABOUT 2000 TO 7000 STANDARD CUBIC FEET PER BARREL OF FRESH FEED TO OBTAIN A HYDROGEN CONSUMPTION RATE BASED ON FRESH FEED OF FROM ABOUT 500 TO 1500 STANDARD CUBIC FEET PER BARREL OF FRESH FEED, SEPARATING RESIDUAL HYDROCARBONS BOILING ESSENTIALLY ABOVE ABOUT 650* F, AND CRACKING SAID RESIDUAL HYDROCARBONS IN THE PRESENCE OF A SILICA-BASED CRACKING CATALYST TO OBTAIN GASOLINE BOILING RANGE PRODUCTS.
Claim 2
Independent Claim
140 words
A METHOD OF PRODUCING GASOLINE BOILING RANGE PRODUCTS FROM AN ASPHALT RESIDUAL FEEDSTOCK HAVING A PENETRATION OF UP TO ABOUT 250 AT 77* F, WHICH CONSISTS ESSENTIALLY OF CONTACTING SAID ASPHALT RESIDUAL FEEDSTOCK IN THE PRESENCE OF HYDROGEN WITH A HYDROCRACKING CATALYST AT A TEMPERATURE OF ABOUT 760* F, TO 810* F, UNDER A PRESSURE OF ABOUT 2000 TO 3000 P.S.I.G. A WEIGHT HOURLY SPACE VELOCITY OF ABOUT 1 TO 1, A HYDROGEN RATE OF FROM ABOUT 2000 TO 7000 STANDARD CUBIC FEET PER BARREL OF FRESH FEED TO OBTAIN A HYDROGEN CONSUMPTION RATE BASED ON FRESH FEED OF FROM ABOUT 500 TO 1500 STANDARD CUBIC FEET PER BARREL OF FRESH FEED, SEPARATING RESIDUAL HYDROCARBONS BOILING ESSENTIALLY ABOVE ABOUT 650* F, AND CRACKING SAID RESIDUAL HYDROCARBONS IN THE PRESENCE OF A SILICA-BASED CRACKING CATALYST TO OBTAIN GASOLINE BOILING RANGE PRODUCTS.
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) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |