US4263126A
Expired / Lapsed
US
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Preparation and use of reactive dispersions
Assignee: Mobil Oil AS
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Filing: 1979-10-22
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Granted: 1981-04-21
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Expires: 1999-10-22
Abstract
Abstract This invention provides a method for converting waxy or viscous hydrocarbon oils to lower pour point or less viscous oils. By this method, reactive dispersions of zeolites, such as HZSM-5 crystals, are prepared with the oil to be converted, and conversion is effected by heating the dispersion.
Inventors
- 👤 Louis D. Rollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:48
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G45/00; C10G45/58; C10G45/60; C10G45/64
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
109 words
A process for converting a convertible hydrocarbon oil, said process comprising dispersing in said hydrocarbon oil from about 0.02 wt.% to about 10 wt.% of said oil of particles comprising a catalytically active zeolite, said particles having a particle size from less than about 0.01 microns to 250 microns, and said zeolite having a pore size of at least 5 Angstroms and a normal hexane sorption capacity of at least 5 wt.% when exposed at 25° C. to 20 mm vapor pressure of normal hexane, and heating said dispersion at a temperature of about 200° to about 500° C. for from 0.1 to 72 hours to effect said conversion.
Claim 2
Dependent Claim
109 words
A process for converting a convertible hydrocarbon oil, said process comprising dispersing in said hydrocarbon oil from about 0.02 wt.% to about 10 wt.% of said oil of particles comprising a catalytically active zeolite, said particles having a particle size from less than about 0.01 microns to 250 microns, and said zeolite having a pore size of at least 5 Angstroms and a normal hexane sorption capacity of at least 5 wt.% when exposed at 25° C. to 20 mm vapor pressure of normal hexane, and heating said dispersion at a temperature of about 200° to about 500° C. for from 0.1 to 72 hours to effect said conversion.
Claim 3
Dependent Claim
17 words
The process described in claim 1 including the step of separating said particles from said converted oil.
Claim 4
Dependent Claim
28 words
The process described in claim 1 wherein said zeolite has a silica to alumina ratio of at least about 12 and a Constraint Index of 1 to 12.
Claim 5
Dependent Claim
13 words
The process described in claim 3 wherein said zeolite is ZSM-5 or ZSM-11.
Claim 6
Dependent Claim
21 words
The process described in claim 4 wherein said particle size is from less than about 0.01 microns to about 5 microns.
Claim 7
Dependent Claim
34 words
The process described in claim 1 wherein said convertible hydrocarbon oil is a waxy oil at least 25% of which distils above 350° F. and said conversion reduces the pour point of said oil.
Claim 8
Dependent Claim
17 words
The process described in claim 6 including the step of separating said particles from said converted oil.
Claim 9
Dependent Claim
28 words
The process described in claim 6 wherein said zeolite has a silica to alumina ratio of at least about 12 and a Constraint Index of 1 to 12.
Claim 10
Dependent Claim
13 words
The process described in claim 6 wherein said zeolite is ZSM-5 or ZSM-11.
Claim 11
Dependent Claim
21 words
The process described in claim 6 wherein said particle size is from less than about 0.01 microns to about 5 microns.
Claim 12
Dependent Claim
12 words
The process described in claim 6 wherein said zeolite is hydrogen mordenite.
Claim 13
Dependent Claim
18 words
The process described in claim 6 wherein said zeolite is hydrogen Y or rare earth exchanged hydrogen Y.
Claim 14
Dependent Claim
16 words
The process described in claim 6 wherein said waxy oil is a whole virgin crude oil.
Claim 15
Dependent Claim
15 words
The process described in claim 6 wherein said waxy oil is a petroleum distillate fraction.
Claim 16
Dependent Claim
48 words
A reactive dispersion comprising a convertible hydrocarbon oil having dispersed therein from about 0.02 wt.% to about 10 wt.% of said oil of particles comprising a catalytically active zeolite that sorbs normal hexane, said particles having a particle size from less than about 0.01 micron to 250 microns.
Claim 17
Dependent Claim
48 words
A reactive dispersion comprising a convertible hydrocarbon oil having dispersed therein from about 0.02 wt.% to about 10 wt.% of said oil of particles comprising a catalytically active zeolite that sorbs normal hexane, said particles having a particle size from less than about 0.01 micron to 250 microns.
Claim 18
Dependent Claim
36 words
The reactive dispersion described in claim 15 wherein said convertible hydrocarbon oil is selected from the group consisting of a waxy hydrocarbon oil boiling above 350° F. and a viscous hydrocarbon oil boiling above 350° F.
Claim 19
Dependent Claim
30 words
The reactive dispersion described in claim 15 wherein said particles comprising zeolite consist of synthetic zeolite crystals having a particle size from less than about 0.01 to about 5 microns.
Claim 20
Dependent Claim
13 words
The reactive dispersion described in claim 15 wherein said zeolite is hydrogen Y.
Claim 21
Dependent Claim
13 words
The reactive dispersion described in claim 15 wherein said zeolite is hydrogen mordenite.
Claim 22
Dependent Claim
31 words
The reactive dispersion described in claim 15 wherein said zeolite has a silica to alumina ratio of at least about 12 and a Constraint Index of about 1 to about 12.
Claim 23
Dependent Claim
12 words
The reactive dispersion described in claim 20 wherein said zeolite is ZSM-5.
Claim 24
Dependent Claim
60 words
A paraffin-base virgin crude oil containing an amount of particulate solid comprising a crystalline zeolite having a silica to alumina ratio of at least about 12 and a Constraint Index of from about 1 to about 12, said amount being less than 2 wt.% of said crude oil and effective to dewax said crude oil on heating at elevated temperature.
Claim 25
Dependent Claim
60 words
A paraffin-base virgin crude oil containing an amount of particulate solid comprising a crystalline zeolite having a silica to alumina ratio of at least about 12 and a Constraint Index of from about 1 to about 12, said amount being less than 2 wt.% of said crude oil and effective to dewax said crude oil on heating at elevated temperature.
Claim 26
Dependent Claim
14 words
The process described in claim 6 wherein said convertible hydrocarbon oil is shale oil.
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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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |