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US4504590A
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Catalysts and their preparation
Assignee: Standard Oil Co
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Filing: 1982-12-27
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Granted: 1985-03-12
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Expires: 2002-12-27
Abstract
Abstract Catalysts comprising a medium to large port zeolite modified by the oxide or acid of an element selected from the group consisting of Group IIIA to VIIA elements and, a Fischer-Tropsch catalyst wherein the ratio of zeolite to Fischer-Tropsch component is from about 0.1 to 50:1 can be employed to produce fuel grade saturated gaseous hydrocarbons from synthesis gas. A process is employed which includes the step of contacting synthesis gas over the foregoing catalyst at a reaction temperature of from about 100° C. to 500° C. and at a pressure of from about one atmosphere (0.1 MPa) to about 200 atmospheres (20 MPa) and at a gas hourly space velocity of from about 10 to 100,000. A method is also provided for the preparation of the combination catalyst. The catalyst and process for its use results in a small liquid aromatic product also being formed which is suitable for forming gasoline. Olefins and oxygenates are essentially eliminated.
Inventors
- 👤 Michael J. Desmond
- 👤 Marc A. Pepera
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:00
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/04; B01J23/00; B01J23/70; B01J23/74; B01J23/745; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J29/14; B01J29/146; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/0445; C07C2521/00; C07C2521/18; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/064; C07C2529/072
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
66 words
A catalyst composition comprising: a medium to large port zeolite having a pore opening diameter of from about 4 Å to 10 Å, said zeolite being modified by the oxide or acid of an element selected from the group consisting of Group IIIA and VA elements; and a Fischer-Tropsch catalyst wherein the ratio of said modified zeolite to Fischer-Tropsch component is from about 0.1 to 50:1.
Claim 2
Dependent Claim
66 words
A catalyst composition comprising: a medium to large port zeolite having a pore opening diameter of from about 4 Å to 10 Å, said zeolite being modified by the oxide or acid of an element selected from the group consisting of Group IIIA and VA elements; and a Fischer-Tropsch catalyst wherein the ratio of said modified zeolite to Fischer-Tropsch component is from about 0.1 to 50:1.
Claim 3
Dependent Claim
30 words
A catalyst, as set forth in claim 1, wherein the amount of said oxide or acid present in said modified zeolite comprises from about one to 50 percent by weight.
Claim 4
Dependent Claim
40 words
A catalyst, as set forth in claim 2, wherein said zeolite is modified with phosphoric acid in an amount of 20 percent by weight and said modified zeolite is combined with an equal amount by weight of said Fischer-Tropsch catalyst.
Claim 5
Dependent Claim
14 words
A catalyst, as set forth in claim 3, wherein said Fischer-Tropsch catalyst comprises 75Fe(II):25Fe(III):20Cu(II).
Claim 6
Dependent Claim
20 words
A catalyst, as set forth in cliam 4, further comprising at least about one percent by weight of a lubricant.
Claim 7
Dependent Claim
20 words
A catalyst, as set forth in cliam 4, further comprising at least about one percent by weight of a lubricant.
Claim 8
Dependent Claim
13 words
A catalyst, as set forth in claim 5, wherein said lubricant is graphite.
Claim 9
Dependent Claim
40 words
A catalyst, as set forth in claim 2, wherein said zeolite is modified with boric acid in an amount of 14 percent by weight and said modified zeolite is combined with an equal amount by weight of said Fischer-Tropsch catalyst.
Claim 10
Dependent Claim
14 words
A catalyst, as set forth in claim 7, wherein said Fischer-Tropsch catalyst comprises 75Fe(II):25Fe(III):20Cu(II).
Claim 11
Dependent Claim
20 words
A catalyst, as set forth in claim 8, further comprising at least about one percent by weight of a lubricant.
Claim 12
Dependent Claim
13 words
A catalyst, as set forth in claim 9, wherein said lubricant is graphite.
Claim 13
Independent Claim
82 words
A method for the preparation of a combination catalyst for the conversion of synthesis gas to saturated gaseous hydrocarbons comprising the steps of: modifying a medium to large port zeolite, said zeolite having a pore opening diameter of from about 4 Å to 10 Å, with an acid or oxide of a metal selected from the group consisting of Group IIIA and VA elements; and combining said modified zeolite with a Fischer-Tropsch catalyst in a ratio of from about 0.1 to 50:1.
Claim 14
Independent Claim
82 words
A method for the preparation of a combination catalyst for the conversion of synthesis gas to saturated gaseous hydrocarbons comprising the steps of: modifying a medium to large port zeolite, said zeolite having a pore opening diameter of from about 4 Å to 10 Å, with an acid or oxide of a metal selected from the group consisting of Group IIIA and VA elements; and combining said modified zeolite with a Fischer-Tropsch catalyst in a ratio of from about 0.1 to 50:1.
Claim 15
Dependent Claim
30 words
A method, as set forth in claim 11, wherein the amount of said acid or oxide present in said modified zeolite comprises from about one to 50 percent by weight.
Claim 16
Dependent Claim
41 words
A method, as set forth in claim 12, wherein said zeolite is modified with phosphoric acid in an amount of about 20 percent by weight and said modified zeolite is combined with an equal amount by weight of said Fischer-Tropsch catalyst.
Claim 17
Dependent Claim
14 words
A method, as set forth in claim 13, wherein said Fischer-Tropsch catalyst comprises 75Fe(II):25Fe(III):20Cu(II).
Claim 18
Dependent Claim
32 words
A method, as set forth in claim 14, comprising the further step of: combining at least about one percent by weight of a lubricant with said modified zeolite and said Fischer-Tropsch catalyst.
Claim 19
Dependent Claim
13 words
A method, as set forth in claim 15, wherein said lubricant is graphite.
Claim 20
Dependent Claim
40 words
A method, as set forth in claim 12, wherein said zeolite is modified with boric acid in an amount of 14 percent by weight and said modified zeolite is combined with an equal amount by weight of said Fischer-Tropsch catalyst.
Claim 21
Dependent Claim
14 words
A method, as set forth in claim 17, wherein said Fischer-Tropsch catalyst comprises 75Fe(II):25Fe(III):20Cu(II).
Claim 22
Dependent Claim
20 words
A method, as set forth in claim 18, further comprising at least about one percent by weight of a lubricant.
Claim 23
Dependent Claim
13 words
A method, as set forth in claim 19, wherein said lubricant is graphite.
Claim 24
Dependent Claim
45 words
A method, as set forth in claim 11, wherein said step of modifying includes the steps of: impregnating said zeolite with an acid of said metal; and calcining said modified zeolite at temperatures ranging from about 100° to 800° C. for at least one hour.
Claim 25
Dependent Claim
72 words
A method, as set forth in claim 21, comprising the further step of: reducing said combination catalyst with H 2 and/or CO at a temperature of from about 100° C. to 600° C., at H 2 and/or CO partial pressures ranging from 0.001 MPa to about 5.07 MPa and for a period of time of from about one to 100 hours prior to employing said catalyst for the conversion of synthesis gas.
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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) | 1988-03-11 | 1988-09-10 | 1989-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-03-11 | 1992-09-10 | 1993-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-03-11 | 1996-09-10 | 1997-03-12 | $7700.00 | Window Closed / Lapsed |