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US4542251A
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Oligomerization of liquid olefin over a nickel-containing silicaceous crystalline molecular sieve
Assignee: Chevron USA Inc
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Filing: 1984-02-27
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Granted: 1985-09-17
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Expires: 2004-02-27
Abstract
Abstract A process for oligomerizing olefins in the liquid phase using nickel-containing silicaceous crystalline molecular sieve catalyst.
Inventors
- 👤 Stephen J. Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:30
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/40; C07C2529/42; C07C2529/46
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
64 words
A process for oligomerizing alkenes comprising: (a) contacting a C 2 to C 20 olefin or mixture thereof in the liquid phase with a nickel-containing silicaceous crystalline molecular sieve selected from the group consisting of HZSM-5, HZSM-11, crystalline admixtures of HZSM-5 and HZSM-11, or mixtures thereof, at a temperature from about 45° F. to about 450° F.; (b) recovering an effluent comprising oligomerized alkene.
Claim 2
Dependent Claim
64 words
A process for oligomerizing alkenes comprising: (a) contacting a C 2 to C 20 olefin or mixture thereof in the liquid phase with a nickel-containing silicaceous crystalline molecular sieve selected from the group consisting of HZSM-5, HZSM-11, crystalline admixtures of HZSM-5 and HZSM-11, or mixtures thereof, at a temperature from about 45° F. to about 450° F.; (b) recovering an effluent comprising oligomerized alkene.
Claim 3
Dependent Claim
16 words
The process of claim 1 wherein the nickel-containing silicaceous crystalline molecular sieve also contains zinc cation.
Claim 4
Dependent Claim
20 words
The process of claim 1 wherein said contacting is carried out at a LHSV of from about 0.2 to 5.
Claim 5
Dependent Claim
16 words
The process of claim 1 wherein the pressure is from about 50 to about 1600 psig.
Claim 6
Dependent Claim
14 words
The process of claim 1 wherein said nickel-containing silicaceous crystalline molecular sieve is HZSM-5.
Claim 7
Dependent Claim
14 words
The process of claim 1 wherein said nickel-containing silicaceous crystalline molecular sieve is HZSM-11.
Claim 8
Dependent Claim
22 words
The process of claim 1 wherein said nickel-containing silicaceous crystalline molecular sieve is a crystalline or physical admixture of HZSM-5 and HZSM-11.
Claim 9
Dependent Claim
16 words
The process of claim 5 wherein the nickel-containing silicaceous crystalline molecular sieve also contains zinc cation.
Claim 10
Dependent Claim
16 words
The process of claim 6 wherein said nickel-containing silicaceous crystalline molecular sieve also contains zinc cation.
Claim 11
Dependent Claim
16 words
The process of claim 7 wherein said nickel-containing silicaceous crystalline molecular sieve also contains zinc cation.
Claim 12
Dependent Claim
10 words
The process of claim 1 wherein said alkenes comprise n-alkenes.
Claim 13
Dependent Claim
10 words
The process of claim 11 wherein said n-alkenes are 1-alkenes.
Claim 14
Dependent Claim
24 words
The process of claim 1 wherein said alkenes comprise branched chain alkenes and wherein the branches of said branched chain alkenes are methyl branches.
Claim 15
Dependent Claim
14 words
The process of claim 1 further comprising the step of hydrogenating said alkene oligomers.
Claim 16
Dependent Claim
36 words
The process of claim 1 further comprising the steps of: separating unreacted alkenes present in said effluent from alkene oligomers present in said effluent and recycling said unreacted alkenes into the feed for said contacting step.
References Cited (Backward Citations)
US4417086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |