Patent US4157950A successfully refreshed from Google Patents.
US4157950A
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Conversion of hydrocarbons
Assignee: Mobil Oil AS
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Filing: 1977-10-17
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Granted: 1979-06-12
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Expires: 1997-10-17
Abstract
Abstract Crystalline aluminosilicate zeolites are used as catalysts for various hydrocarbon conversion processes and are particularly useful for conversion of paraffins in the presence of an alkylatable aromatic hydrocarbon such as benzene.
Inventors
- 👤 Vincent J. Frilette
- 👤 Mae K. Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:10
CPC Classifications
C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/00; B01J29/04; B01J29/06; B01J29/18; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/12; C07C2/54; C07C2/64; C07C2/66; C07C2/76; C07C4/00; C07C4/02; C07C4/06; C07C5/00; C07C5/22; C07C5/27; C07C5/29; C07C5/32; C07C5/367; C07C5/373; C07C5/393; C07C5/41; C07C6/00; C07C6/08; C07C6/12; C07C6/123; C10G11/00; C10G11/02; C10G11/04; C10G11/05; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/18; C07C2601/00; C07C2601/06; C07C2601/08; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
77 words
In a process for increasing the aromatic content of a liquid hydrocarbon charge comprising paraffins and cycloparaffins by contact with a solid catalyst under conversion temperatures of at least 180° C. and recovering from such conversion a liquid hydrocarbon product of greater aromatic content than said charge; the improvement consisting of conducting such conversion by contacting said charge with a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica to alumina ratio of at least 10.
Claim 2
Dependent Claim
77 words
In a process for increasing the aromatic content of a liquid hydrocarbon charge comprising paraffins and cycloparaffins by contact with a solid catalyst under conversion temperatures of at least 180° C. and recovering from such conversion a liquid hydrocarbon product of greater aromatic content than said charge; the improvement consisting of conducting such conversion by contacting said charge with a catalyst comprising a crystalline aluminosilicate zeolite characterized by a silica to alumina ratio of at least 10.
Claim 3
Dependent Claim
13 words
A process according to claim 1 wherein a petroleum naphtha is catalytically reformed.
Claim 4
Dependent Claim
47 words
A process for the alkylation of an aromatic hydrocarbon which comprises contacting said aromatic hydrocarbon with an alkylating agent in an alkylation reaction zone under alkylation conditions with a catalyst consisting essentially of a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 10.
Claim 5
Dependent Claim
47 words
A process for the alkylation of an aromatic hydrocarbon which comprises contacting said aromatic hydrocarbon with an alkylating agent in an alkylation reaction zone under alkylation conditions with a catalyst consisting essentially of a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 10.
Claim 6
Dependent Claim
17 words
The process of claim 1 wherein the aluminosilicate has been base exchanged with ammonium or hydrogen ions.
Claim 7
Dependent Claim
17 words
The process of claim 1 wherein the aluminosilicate is at least 50 percent in the hydrogen form.
Claim 8
Dependent Claim
11 words
The process of claim 3 wherein said aromatic hydrocarbon is benzene.
Claim 9
Dependent Claim
12 words
The process of claim 3 wherein said alkylating agent is an olefin.
Claim 10
Dependent Claim
10 words
The process of claim 7 wherein said olefin is ethylene.
Claim 11
Dependent Claim
10 words
The process of claim 7 wherein said olefin is propylene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |