US4419218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion of shale oil
Assignee: Mobil Oil AS
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Filing: 1981-07-08
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Granted: 1983-12-06
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Expires: 2001-07-08
Abstract
Abstract Zeolite catalysts having a low constraint index maximize conversion of hydrotreated shale oil primarily to the preferred 400-600 DEG F. boiling range distillate.
Inventors
- 👤 Philip J. Angevine
- 👤 Gunter H. Kuhl
- 👤 Sadi Mizrahi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:07
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; C10G65/00; C10G65/02; C10G65/12; Y; Y10; Y10S; Y10S208/00; Y10S208/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
112 words
A process for selectively converting a previously hydrotreated shale oil to a fraction primarily in the 400°-650° F. boiling range, comprising contacting said shale oil with a ZSM-12 crystalline aluminosilicate zeolite having a silica-to-alumina ratio greater than about 12 said shale oil having been previously hydrotreated at a temperature of about 650°-850° F., a pressure of about 500 to 3000 psig, and hydrogen/oil ratio of about 1,000-10,000 SCF/B and an LHSV of about 0.2-2.95 and thereafter hydroprocessing under shale oil conversion conditions sufficient to convert from at least about 50 to about 95% of the unconverted treated shale oil present based on the weight of the oil to said 400°-650° F. fraction.
Claim 2
Dependent Claim
112 words
A process for selectively converting a previously hydrotreated shale oil to a fraction primarily in the 400°-650° F. boiling range, comprising contacting said shale oil with a ZSM-12 crystalline aluminosilicate zeolite having a silica-to-alumina ratio greater than about 12 said shale oil having been previously hydrotreated at a temperature of about 650°-850° F., a pressure of about 500 to 3000 psig, and hydrogen/oil ratio of about 1,000-10,000 SCF/B and an LHSV of about 0.2-2.95 and thereafter hydroprocessing under shale oil conversion conditions sufficient to convert from at least about 50 to about 95% of the unconverted treated shale oil present based on the weight of the oil to said 400°-650° F. fraction.
Claim 3
Dependent Claim
36 words
The process of claim 1 wherein the treated shale oil is hydroprocessed at a temperature of from about 750°-775° F., a pressure of about 2000 psig, a LVHS of about 0.5 and about 5000 SCF/B hydrogen.
Claim 4
Dependent Claim
14 words
The process of claim 1 wherein the silica-to-alumina ratio is about 40 to 1600.
Claim 5
Dependent Claim
15 words
The process of claim 3 wherein the silica-to-alumina ratio is about 40 to about 250.
Claim 6
Dependent Claim
15 words
The process of claim 4 wherein the silica-to-alumina ratio is about 120 to about 125.
Claim 7
Dependent Claim
16 words
The process of claim 1 wherein the SiO 2 /Al 2 O 3 is above 1600.
Claim 8
Dependent Claim
29 words
The process of claim 1 wherein the original cations have been replaced by hydrogen, ammonium ions or by metal ions of Groups I to VIII of the Periodic Table.
Claim 9
Dependent Claim
12 words
The process of claim 7 wherein the zeolite, following exchange, is calcined.
Claim 10
Dependent Claim
13 words
The process of claim 8 wherein the zeolite is in the hydrogen form.
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) | 1986-12-05 | 1987-06-06 | 1987-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-05 | 1991-06-06 | 1991-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-05 | 1995-06-06 | 1995-12-06 | $7700.00 | Window Closed / Lapsed |