US4036735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for upgrading motor gasoline
Assignee: Chevron USA Inc
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Filing: 1973-04-02
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Granted: 1977-07-19
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Expires: 1993-04-02
Abstract
Abstract A process is disclosed wherein a naphtha feedstock is subjected to hydrotreating, a C 5 + fraction from the hydrotreating zone effluent is catalytically reformed in a reforming zone with the reformate being subjected to selective catalytic hydrocracking to produce C 4 + liquid fraction. The liquid fraction is then admixed with a portion of C 4 hydrocarbons obtained from the hydrotreating zone effluent.
Inventors
- 👤 Ronald R. Roselius
- 👤 Alexander G. Edeleanu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:47
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10L1/06; C10G; C10G59/00; C10G59/02; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
168 words
A process for producing high quality gasoline from a naphtha feedstock comprising: 1. contacting said feedstock together with hydrogen in a hydrotreating zone at hydrotreating conditions, with a hydrotreating catalyst, thereby obtaining a hydrocarbon effluent; 2. separating said hydrocarbon effluent into a. a first fraction comprising C 4 - hydrocarbons, and b. a second fraction comprising C 5 + hydrocarbons; 3. contacting at least a portion of said second fraction and hydrogen in a reforming zone at reforming conditions, with a reforming catalyst, thereby obtaining a reformate; 4. contacting at least a portion of said reformate and hydrogen in a hydrocracking zone at hydrocracking conditions with a shape selective hydrocracking catalyst, thereby obtaining a hydrocracking zone effluent comprising a normally gaseous hydrocarbon product and a C 4 + normally liquid product; and 5. blending at least the C 5 + portion of said C 4 + normally liquid product and at least a portion of C 4 hydrocarbons from said first fraction to obtain said high quality gasoline.
Claim 2
Dependent Claim
168 words
A process for producing high quality gasoline from a naphtha feedstock comprising: 1. contacting said feedstock together with hydrogen in a hydrotreating zone at hydrotreating conditions, with a hydrotreating catalyst, thereby obtaining a hydrocarbon effluent; 2. separating said hydrocarbon effluent into a. a first fraction comprising C 4 - hydrocarbons, and b. a second fraction comprising C 5 + hydrocarbons; 3. contacting at least a portion of said second fraction and hydrogen in a reforming zone at reforming conditions, with a reforming catalyst, thereby obtaining a reformate; 4. contacting at least a portion of said reformate and hydrogen in a hydrocracking zone at hydrocracking conditions with a shape selective hydrocracking catalyst, thereby obtaining a hydrocracking zone effluent comprising a normally gaseous hydrocarbon product and a C 4 + normally liquid product; and 5. blending at least the C 5 + portion of said C 4 + normally liquid product and at least a portion of C 4 hydrocarbons from said first fraction to obtain said high quality gasoline.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein said feedstock comprises hydrocarbons boiling in the range of C 4 to about 350° F.
Claim 4
Dependent Claim
60 words
The process of claim 1 wherein said first fraction further comprises iC 5 and at least the C 5 + portion of said C 4 + normally liquid product is blended with (a) at least a portion of C 4 hydrocarbons from said first fraction, and (b) said iC 5 from said first fraction to obtain said high quality gasoline.
Claim 5
Dependent Claim
41 words
The process of claim 3 wherein said reforming catalyst comprises 0.1 to 3 weight percent platinum and 0.01 to 5 weight percent rhenium composited with alumina, said shape selective hydrocracking catalyst comprises erionite composited with an inpore catalytically effective hydrogenation-dehydrogenation component.
Claim 6
Dependent Claim
11 words
The process of claim 4 wherein said hydrogenation-dehydrogenation component is nickel.
Claim 7
Dependent Claim
44 words
The process of claim 5 wherein said high quality gasoline meets the following specifications: Lead Content g Pb/USG; 0- 2.0 R-100 o.n.; 89-91 min. Specific Gravity; 0.745-0.750 Min. Vol. % Distilled at 212° F.; 44-50 Min. Research O.N.; 97-99 Min. Motor O.N.; 86-90 Min.
Claim 8
Dependent Claim
60 words
A process for producing high quality gasoline from a naphtha feedstock comprising: 1. contacting said feedstock together with hydrogen in a hydrotreating zone at hydrotreating conditions, with a hydrotreating catalyst, thereby obtaining a hydrocarbon effluent; 2. separating said hydrocarbon effluent into a. a first fraction comprising C 4 - hydrocarbons, and b. a second fraction comprising C 5 + hydrocarbons;
Claim 9
Dependent Claim
60 words
A process for producing high quality gasoline from a naphtha feedstock comprising: 1. contacting said feedstock together with hydrogen in a hydrotreating zone at hydrotreating conditions, with a hydrotreating catalyst, thereby obtaining a hydrocarbon effluent; 2. separating said hydrocarbon effluent into a. a first fraction comprising C 4 - hydrocarbons, and b. a second fraction comprising C 5 + hydrocarbons;
Claim 10
Dependent Claim
100 words
contacting at least a portion of said second fraction and hydrogen in a reaction zone at reforming conditions, including a temperature of from 600° to 1000° F., with a catalyst which comprises in admixture (1) a reforming catalyst, and (2) a molecular shape selective hydrocracking catalyst, thereby obtaining an effluent comprising normally gaseous hydrocarbon product and a C 4 + normally liquid product; and 4. blending at least the C 5 + portion of said C 4 + normally liquid product and at least a portion of C 4 hydrocarbons from said first fraction to obtain said high quality gasoline.
Claim 11
Dependent Claim
100 words
contacting at least a portion of said second fraction and hydrogen in a reaction zone at reforming conditions, including a temperature of from 600° to 1000° F., with a catalyst which comprises in admixture (1) a reforming catalyst, and (2) a molecular shape selective hydrocracking catalyst, thereby obtaining an effluent comprising normally gaseous hydrocarbon product and a C 4 + normally liquid product; and 4. blending at least the C 5 + portion of said C 4 + normally liquid product and at least a portion of C 4 hydrocarbons from said first fraction to obtain said high quality gasoline.
Claim 12
Dependent Claim
21 words
The process of claim 7 wherein said feedstock comprises hydrocarbons boiling in the range of C 4 to about 350° F.
Claim 13
Dependent Claim
60 words
The process of claim 7 wherein said first fraction further comprises iC 5 and at least the C 5 + portion of said C 4 + normally liquid product is blended with (a) at least a portion of C 4 hydrocarbons from said first fraction, and (b) said iC 5 from said first fraction to obtain said high quality gasoline.
References Cited (Backward Citations)
US2800428A
Cited
US3050458A
Cited
US3009789A
Cited
US3395094A
Cited
US3384576A
Cited
US3556986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |