Patent US3201341A successfully refreshed from Google Patents.
US3201341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two stage cracking of residuals
Assignee: Sinclair Research Inc
•
Filing: 1960-11-21
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Granted: 1965-08-17
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Expires: 1980-11-21
Abstract
No abstract record available.
Inventors
- 👤 Arvin D Anderson
- 👤 Robert L Foster
- 👤 Howard G Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:55
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A PROCESS FOR CATALYTICALLY CRACKING A HYDROCARBON FEEDSTOCK TO PRODUCE GASOLINE, SAID FEEDSTOCK CONSISTING ESSENTIALLY OF RESIDUAL PETROLEUM HYDROCARBON BOILING ABOVE ABOUT 600*F. AND CONTAINING MORE THAN ABOUT 0.6 PART PER MILLION NICKEL AND MORE THAN 1.5 PARTS PER MILLION VANADIUM, WHICH COMPRISES SUBJECTING SAID FEEDSTOCK TO FIRST-STAGE CATALYTIC CRACKING EMPLOYING A SYNTHETIC GEL, SILICA-BASED CRACKING CATALYST AT A TEMPERATURE IN THE RANGE OF ABOUT 700 TO 900*F., AND A PRESSURE OF ABOUT 5 TO 15 P.S.I.G., THEREBY DEPOSITING SUBSTANTIALLY ALL OF SAID METALLIC IMPURITIES ON SAID CATALYST AND CONVERTING ABOUT 30 TO 45% OF SAID PETROLEUM STOCK TO LOWER BOILING MATERIALS, WITHDRAWING FROM SIAD FIRST STAGE CRACKING SYSTEM CONTAMINATED CATALYST CONTAINING AT LEAST ABOUT 100 PARTS
Claim 2
Dependent Claim
117 words
A PROCESS FOR CATALYTICALLY CRACKING A HYDROCARBON FEEDSTOCK TO PRODUCE GASOLINE, SAID FEEDSTOCK CONSISTING ESSENTIALLY OF RESIDUAL PETROLEUM HYDROCARBON BOILING ABOVE ABOUT 600*F. AND CONTAINING MORE THAN ABOUT 0.6 PART PER MILLION NICKEL AND MORE THAN 1.5 PARTS PER MILLION VANADIUM, WHICH COMPRISES SUBJECTING SAID FEEDSTOCK TO FIRST-STAGE CATALYTIC CRACKING EMPLOYING A SYNTHETIC GEL, SILICA-BASED CRACKING CATALYST AT A TEMPERATURE IN THE RANGE OF ABOUT 700 TO 900*F., AND A PRESSURE OF ABOUT 5 TO 15 P.S.I.G., THEREBY DEPOSITING SUBSTANTIALLY ALL OF SAID METALLIC IMPURITIES ON SAID CATALYST AND CONVERTING ABOUT 30 TO 45% OF SAID PETROLEUM STOCK TO LOWER BOILING MATERIALS, WITHDRAWING FROM SIAD FIRST STAGE CRACKING SYSTEM CONTAMINATED CATALYST CONTAINING AT LEAST ABOUT 100 PARTS
References Cited (Backward Citations)
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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) | 1968-08-16 | 1969-02-15 | 1969-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-16 | 1973-02-15 | 1973-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-16 | 1977-02-15 | 1977-08-17 | $7700.00 | Window Closed / Lapsed |