Patent US3867277A successfully refreshed from Google Patents.
US3867277A
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Low pressure hydrocracking process
Assignee: Union Oil Company of California
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Filing: 1973-05-23
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Granted: 1975-02-18
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Expires: 1993-05-23
Abstract
Abstract Catalytic hydrocracking is carried out at low pressures, below 1,000 psi, and at relatively high space velocities and conversions per pass, utilizing a special class of catalysts which are found to be especially resistant to deactivation under such conditions. These catalysts comprise a Group VIII metal hydrogenating component supported upon a low-sodium hydrogen Y zeolite cracking base which has been subjected to thermal stabilization.
Inventors
- 👤 John W Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:42
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
152 words
A PROCESS FOR THE HYDROCRAKING OF A MINERAL OIL FEEDSTOCK BOILING ABOVE THE GASOLINE RANGE TO PRODUCE HYDROCARBONS BOILING IN THE GASOLINE RANGE, WHICH COMPRISES CONTACTING SAID FEEDSTOCK PLUS ADDED HYDROGEN WITH A CATALYST COMPRISING A GROUP VIII METAL HYDROGENATING COMPONENT SUPPORTED ON A METAL-CATION-DEFICIENT Y ZEOLITE BASE CONTAINING LESS THAN ABOUT 1 WEIGHT-PERCENT SODIUM AS NA2O, SAID Y ZEOLITE BASE HAVING BEEN STABILIZED BY CALCINING AN AMMONIUM FORM THEREOF FOR A TIME AND AT A TEMPERATURE SUFFICIENT TO REDUCE THE UNIT CELL SIZE THEREOF BY AT LEAST ABOUT 0.2 PERCENT, SAID CONTACTING BEING CARRIED OUT AT A SPACE VELOCITY ABOVE ABOUT 0.5 AND AT A TEMPERATURE CORRELATED WITH HYDROGEN PRESSURE (P) IN PSI, SO AS TO GIVE A VOLUME-PERCENT CONVERSION PER PASS (C) TO C4-400*F END POINT GASOLINE FALLING, AS DOES (P), WITHIN THE POLYGON SHOWN IN THE DRAWING AND DEFINED BY THE LINES, P= 300, P=1000, C=15, C=90, AND 10C=P-300.
Claim 2
Dependent Claim
152 words
A PROCESS FOR THE HYDROCRAKING OF A MINERAL OIL FEEDSTOCK BOILING ABOVE THE GASOLINE RANGE TO PRODUCE HYDROCARBONS BOILING IN THE GASOLINE RANGE, WHICH COMPRISES CONTACTING SAID FEEDSTOCK PLUS ADDED HYDROGEN WITH A CATALYST COMPRISING A GROUP VIII METAL HYDROGENATING COMPONENT SUPPORTED ON A METAL-CATION-DEFICIENT Y ZEOLITE BASE CONTAINING LESS THAN ABOUT 1 WEIGHT-PERCENT SODIUM AS NA2O, SAID Y ZEOLITE BASE HAVING BEEN STABILIZED BY CALCINING AN AMMONIUM FORM THEREOF FOR A TIME AND AT A TEMPERATURE SUFFICIENT TO REDUCE THE UNIT CELL SIZE THEREOF BY AT LEAST ABOUT 0.2 PERCENT, SAID CONTACTING BEING CARRIED OUT AT A SPACE VELOCITY ABOVE ABOUT 0.5 AND AT A TEMPERATURE CORRELATED WITH HYDROGEN PRESSURE (P) IN PSI, SO AS TO GIVE A VOLUME-PERCENT CONVERSION PER PASS (C) TO C4-400*F END POINT GASOLINE FALLING, AS DOES (P), WITHIN THE POLYGON SHOWN IN THE DRAWING AND DEFINED BY THE LINES, P= 300, P=1000, C=15, C=90, AND 10C=P-300.
Claim 3
Dependent Claim
28 words
A process as defined in claim 1 wherein (C) and (P) fall within the polygon defined by the lines, P 300, C 85, 10C P-150, and 10C P+300.
Claim 4
Dependent Claim
20 words
subjecting the resulting product to further ammonium ion exchange to reduce the sodium content to below about 0.6 weight-percent Na2O;
Claim 5
Dependent Claim
20 words
subjecting the resulting product to further ammonium ion exchange to reduce the sodium content to below about 0.6 weight-percent Na2O;
Claim 6
Dependent Claim
32 words
admixing the resulting product with a minor proportion of a hydrous, refractory amorphous oxide of a difficultly reducible metal, and shaping the resulting mixture into pellets of desired form and size; and
Claim 7
Dependent Claim
32 words
admixing the resulting product with a minor proportion of a hydrous, refractory amorphous oxide of a difficultly reducible metal, and shaping the resulting mixture into pellets of desired form and size; and
Claim 8
Dependent Claim
13 words
A process as defined in claim 1 wherein said hydrogenating component comprises palladium.
Claim 9
Dependent Claim
27 words
A process as defined in claim 1 wherein said hydrogenating component is selected from the class consisting of cobalt and nickel and the oxides and sulfides thereof.
Claim 10
Dependent Claim
11 words
calcining the resulting pellets at temperatures between about 800* and 1,000*F.
Claim 11
Dependent Claim
11 words
calcining the resulting pellets at temperatures between about 800* and 1,000*F.
Claim 12
Dependent Claim
30 words
A process as defined in claim 4 wherein said catalyst also comprises a hydrogenating component selected from the class consisting of molybdenum and tungsten, and the oxides and sulfides thereof.
Claim 13
Dependent Claim
21 words
A process as defined in claim 1 wherein said calcination is carried out at a temperature between about 950* and 1,800*F.
Claim 14
Dependent Claim
24 words
A process as defined in claim 6 wherein said calcination is carried out in the presence of at least about 0.2 psi of steam.
Claim 15
Dependent Claim
146 words
A process for the hydrocracking of a mineral oil feedstock boiling above the gasoling range to produce hydrocarbons boiling in the gasoline range, which comprises contacting said feedstock plus added hydrogen with a catalyst comprising a Group VIII metal hydrogenating component supported on a composite of (1) a refractory amorphous oxide of a difficulty reducible metal and (2) a thermally stabilized, metal-cation-deficient Y zeolite containing less than about 0.6 weight-percent sodium as Na2O, said contacting being carried out at a space velocity above about 1.0 and at a temperature correlated with hydrogen pressure (P), in psi, so as to give a volume-percent conversion per pass (C) to C4-400*F end point gasoline falling, as does (P), within the polygon shown in the drawing and defined by the lines, P 300, P 1000, C 15, C 90, and 10C P-300, said composite catalyst support having been prepared by:
Claim 16
Dependent Claim
146 words
A process for the hydrocracking of a mineral oil feedstock boiling above the gasoling range to produce hydrocarbons boiling in the gasoline range, which comprises contacting said feedstock plus added hydrogen with a catalyst comprising a Group VIII metal hydrogenating component supported on a composite of (1) a refractory amorphous oxide of a difficulty reducible metal and (2) a thermally stabilized, metal-cation-deficient Y zeolite containing less than about 0.6 weight-percent sodium as Na2O, said contacting being carried out at a space velocity above about 1.0 and at a temperature correlated with hydrogen pressure (P), in psi, so as to give a volume-percent conversion per pass (C) to C4-400*F end point gasoline falling, as does (P), within the polygon shown in the drawing and defined by the lines, P 300, P 1000, C 15, C 90, and 10C P-300, said composite catalyst support having been prepared by:
Claim 17
Dependent Claim
28 words
A process as defined in claim 8 wherein (C) and (P) fall within the polygon defined by the lines, P 300, C 85, 10C P-150, and 10C P+300.
Claim 18
Dependent Claim
13 words
A process as defined in claim 8 wherein said hydrogenating component comprises palladium.
Claim 19
Dependent Claim
27 words
A process as defined in claim 8 wherein said hydrogenating component is selected from the class consisting of cobalt and nickel and the oxides and sulfides thereof.
Claim 20
Dependent Claim
30 words
A process as defined in claim 11 wherein said catalyst also comprises a hydrogenating component selected from the class consisting of molybdenum and tungsten, and the oxides and sulfides thereof.
Claim 21
Dependent Claim
14 words
A process as defined in claim 8 wherein said amorphous oxide is essentially alumina.
Claim 22
Dependent Claim
28 words
A process as defined in claim 13 wherein (C) and (P) fall within the polygon defined by the lines, P 300, C 85, 10C P-150, and 10C P+300.
Claim 23
Dependent Claim
13 words
A process as defined in claim 13 wherein said hydrogenating component comprises palladium.
Claim 24
Dependent Claim
27 words
A process as defined in claim 13 wherein said hydrogenating component is selected from the class consisting of cobalt and nickel and the oxides and sulfides thereof.
Claim 25
Dependent Claim
30 words
A process as defined in claim 16 wherein said catalyst also comprises a hydrogenating component selected from the class consisting of molybdenum and tungsten, and the oxides and sulfides thereof.
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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |