US4665265A
Expired / Lapsed
US
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Conversion of olefins and paraffins over novel catalyst composition
Assignee: Mobil Oil AS
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Filing: 1985-10-29
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Granted: 1987-05-12
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Expires: 2005-10-29
Abstract
Abstract Feedstock comprising C 2 + olefins, C 2 -C 7 paraffins or a mixture thereof is converted to product comprising C 5 + hydrocarbon compounds over catalyst having been prepared by reacting a high-silica zeolite with an acidic inorganic oxide in the presence of water.
Inventors
- 👤 Pochen Chu
- 👤 William E. Garwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/40; C10; C10G; C10G11/00; C10G11/02; C10G11/04; C10G11/05; B01J2229/00; B01J2229/10; B01J2229/26; B01J2229/30; B01J2229/36; B01J2229/42; B01J29/80; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
228 words
A process for converting a feedstock comprising C 2 + olefins, C 2 -C 7 paraffins or a mixture thereof to conversion product comprising C 5 + hydrocarbon compounds which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition prepared by a method for enhancing the acid activity of a high silica-containing crystalline zeolite containing about 50 ppm to less than about 1000 ppm alumina and having an Alpha Value of less than about 5, which method comprises the steps of: (1) mulling said zeolite with an acidic inorganic oxide selected from the group consisting of alumina, zirconia, titania and mixtures thereof in the presence of water, (2) forming or shaping the composition of step (1) into a desired shape at a pressure of from about 2 to about 50 tons per square inch, (3) calcining the formed or shaped composition of step (2) in a non-oxidizing atmosphere at from about 900° F. to about 1200° F. for from about 1 hour to about 5 hours, (4) treating said calcined composition from step (3) by base exchange if the sodium content thereof is greater than about 0.02 wt. % in order to reduce the sodium content thereof to less than about 0.02 wt. %, and, if treated, (5) calcining said treated composition of step (4) at elevated temperature.
Claim 2
Dependent Claim
228 words
A process for converting a feedstock comprising C 2 + olefins, C 2 -C 7 paraffins or a mixture thereof to conversion product comprising C 5 + hydrocarbon compounds which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition prepared by a method for enhancing the acid activity of a high silica-containing crystalline zeolite containing about 50 ppm to less than about 1000 ppm alumina and having an Alpha Value of less than about 5, which method comprises the steps of: (1) mulling said zeolite with an acidic inorganic oxide selected from the group consisting of alumina, zirconia, titania and mixtures thereof in the presence of water, (2) forming or shaping the composition of step (1) into a desired shape at a pressure of from about 2 to about 50 tons per square inch, (3) calcining the formed or shaped composition of step (2) in a non-oxidizing atmosphere at from about 900° F. to about 1200° F. for from about 1 hour to about 5 hours, (4) treating said calcined composition from step (3) by base exchange if the sodium content thereof is greater than about 0.02 wt. % in order to reduce the sodium content thereof to less than about 0.02 wt. %, and, if treated, (5) calcining said treated composition of step (4) at elevated temperature.
Claim 3
Dependent Claim
24 words
The process of claim 1 wherein the composition of method step (1) comprises from about 20 to about 95 wt. % acidic inorganic oxide.
Claim 4
Dependent Claim
22 words
The process of claim 1 wherein method step (2) is carried out at a pressure greater than 5 tons per square inch.
Claim 5
Dependent Claim
18 words
The process of claim 1 in which the zeolite has the structure of ZSM-5, ZSM-5/ZSM-11 intermediate of ZSM-11.
Claim 6
Dependent Claim
14 words
The process of claim 4 in which the zeolite has the structure of ZSM-5.
Claim 7
Dependent Claim
15 words
The process of claim 1 wherein the non-oxidizing atmosphere of method step (3) comprises ammonia.
Claim 8
Dependent Claim
210 words
A process for converting a feedstock comprising C 2 + olefins, C 2 -C 7 paraffins or a mixture thereof to conversion product comprising C 5 + hydrocarbon compounds which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition prepared by a method for enhancing the acid activity of a crystalline silicate having the structure of ZSM-5, a silica/alumina mole ratio of greater than about 1600 and an Alpha Value of less than about 5, which method comprises the steps of: (1) mulling said silicate with alpha alumina monohydrate in the presence of water to form a wet composite mixture, (2) extruding the wet mixture of step (1) at a pressure of from about 2 to about 50 tons per square inch to form discrete composite particles, (3) calcining the discrete composite particles of step (2) in a non-oxidizing atmosphere at a temperature of from about 900° F. to about 1200° F. for at least one hour, (4) treating said calcined composite particles of step (3) with hydrogen or ammonium cations if the sodium content of the particles is greater than about 0.02 wt. %, and, if treated, (5) calcining said treated composite particles of step (4) at elevated temperature.
Claim 9
Dependent Claim
210 words
A process for converting a feedstock comprising C 2 + olefins, C 2 -C 7 paraffins or a mixture thereof to conversion product comprising C 5 + hydrocarbon compounds which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition prepared by a method for enhancing the acid activity of a crystalline silicate having the structure of ZSM-5, a silica/alumina mole ratio of greater than about 1600 and an Alpha Value of less than about 5, which method comprises the steps of: (1) mulling said silicate with alpha alumina monohydrate in the presence of water to form a wet composite mixture, (2) extruding the wet mixture of step (1) at a pressure of from about 2 to about 50 tons per square inch to form discrete composite particles, (3) calcining the discrete composite particles of step (2) in a non-oxidizing atmosphere at a temperature of from about 900° F. to about 1200° F. for at least one hour, (4) treating said calcined composite particles of step (3) with hydrogen or ammonium cations if the sodium content of the particles is greater than about 0.02 wt. %, and, if treated, (5) calcining said treated composite particles of step (4) at elevated temperature.
Claim 10
Dependent Claim
59 words
The process of claim 1 wherein said conversion conditions include a temperature of from about 100° C. to about 700° C., a pressure of from about 10 kPa to about 11000 kPa, a liquid hourly space velocity of from about 0.1 hr -1 to about 500 hr -1 and a hydrogen/hydrocarbon mole ratio of from 0 to about 20.
Claim 11
Dependent Claim
59 words
The process of claim 7 wherein said conversion conditions include a temperature of from about 100° C. to about 700° C., a pressure of from about 10 kPa to about 11000 kPa, a liquid hourly space velocity of from about 0.1 hr -1 to about 500 hr -1 and a hydrogen/hydrocarbon mole ratio of from 0 to about 20.
Claim 12
Dependent Claim
14 words
The process of claim 1 wherein said feedstock comprises C 2 -C 7 olefins.
Claim 13
Dependent Claim
14 words
The process of claim 7 wherein said feedstock comprises C 2 -C 7 olefins.
Claim 14
Dependent Claim
10 words
The process of claim 10 wherein said feedstock comprises propylene.
Claim 15
Dependent Claim
10 words
The process of claim 11 wherein said feedstock comprises propylene.
Claim 16
Dependent Claim
17 words
The process of claim 10 wherein said zeolite has the structure of ZSM-5, ZSM-5/ZSM-11 intermediate or ZSM-11.
Claim 17
Dependent Claim
50 words
The process of claim 10 wherein said conversion conditions include a temperature of from about 190° C. to about 375° C., a pressure of from about 400 kPa to about 11000 kPa and a liquid hourly space velocity of from about 0.3 hr -1 to about 2 hr -1 .
Claim 18
Dependent Claim
50 words
The process of claim 15 wherein said conversion conditions include a temperature of from about 190° C. to about 315° C., a pressure of from about 4200 kPa to about 11000 kPa and a liquid hourly space velocity of from about 0.3 hr -1 to about 1 hr -1 .
Claim 19
Dependent Claim
50 words
The process of claim 15 wherein said conversion conditions include a temperature of from about 230° C. to about 375° C., a pressure of from about 400 kPa to about 4700 kPa and a liquid hourly space velocity of from about 0.3 hr -1 to about 2 hr -1 .
References Cited (Backward Citations)
US3906054A
Cited
US4100214A
Cited
US4150062A
Cited
US4149960A
Cited
US4163028A
Cited
US4325929A
Cited
US4344927A
Cited
US4468475A
Cited
US4547612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-05-11 | 1990-11-10 | 1991-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-05-11 | 1994-11-10 | 1995-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-05-11 | 1998-11-10 | 1999-05-12 | $7700.00 | Window Closed / Lapsed |