US4622308A
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US
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Catalyst for the production of hydrocarbons from the synthesis gas
Assignee: Research Association for Petroleum Alternatives Development
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Filing: 1984-12-11
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Granted: 1986-11-11
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Expires: 2004-12-11
Abstract
Abstract An improved catalyst suitable for use in the production of hydrocarbons from the synthesis gas comprises an iron-containing Fischer-Tropsch catalyst, a zeolite and at least one metal selected from the group consisting of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum. This catalyst gives a high CO conversion and hydrocarbons enriched with C5+ gasoline fraction.
Inventors
- 👤 Minoru Koikeda
- 👤 Takashi Suzuki
- 👤 Koutaro Munemura
- 👤 Yoshihiko Nishimoto
- 👤 Tetsuya Imai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:56
CPC Classifications
C; C10; C10G; C10G2/00; C10G2/30; C10G2/32; C10G2/33; C10G2/331; C10G2/333; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/061; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0425; C07C1/043; C07C1/0435; C07C1/0445; C10G2/332; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/10; C07C2529/12; C07C2529/14; C07C2529/16; C07C2529/50; C07C2529/52; C07C2529/54; C07C2529/56; C07C2529/58; C07C2529/65; C07C2529/66; C07C2529/67; C07C2529/68; C07C2529/69; Y; Y10; Y10S; Y10S423/00; Y10S423/21; Y10S423/23; Y10S423/25
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
124 words
A catalyst for the production of hydrocarbons from the synthesis gas, which comprises the combination of an iron-containing Fischer-Tropsch catalyst, a zeolite and at least one metal selected from the group consisting of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum, said metal being supported upon the iron-containing Fischer-Tropsch catalyst or supported upon a mixture of the iron-containing Fischer-Tropsch catalyst and the zeolite, wherein the iron in terms of iron oxide in the iron-containing Fischer-Tropsch catalyst is present in an amount of 5 to 80% by weight, based on the combined weight of the iron oxide and zeolite, and wherein the metal is present in amounts of 0.3 to 5% by weight, based upon the combined weight of the iron oxide and the zeolite.
Claim 2
Dependent Claim
124 words
A catalyst for the production of hydrocarbons from the synthesis gas, which comprises the combination of an iron-containing Fischer-Tropsch catalyst, a zeolite and at least one metal selected from the group consisting of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum, said metal being supported upon the iron-containing Fischer-Tropsch catalyst or supported upon a mixture of the iron-containing Fischer-Tropsch catalyst and the zeolite, wherein the iron in terms of iron oxide in the iron-containing Fischer-Tropsch catalyst is present in an amount of 5 to 80% by weight, based on the combined weight of the iron oxide and zeolite, and wherein the metal is present in amounts of 0.3 to 5% by weight, based upon the combined weight of the iron oxide and the zeolite.
Claim 3
Dependent Claim
19 words
The catalyst of claim 1, wherein the zeolite is selected from the group consisting of erionite, offretite and ferrierite.
Claim 4
Dependent Claim
19 words
The catalyst of claim 1, wherein the zeolite is selected from the group consisting of X-zeolite, Y-zeolite and mordenite.
Claim 5
Dependent Claim
36 words
The catalyst of claim 1, wherein the zeolite is selected from the group consisting of zeolites having a pore size of 5 to 9 Å and a silica to alumina mole ratio of at least 12.
Claim 6
Dependent Claim
38 words
The catalyst of claim 1, wherein a part of all of the aluminum in the zeolite is replaced by at least one trivalent metal selected from the group consisting of iron, chromium, vanadium, bismuth, lanthanum, cerium and titanium.
Claim 7
Dependent Claim
16 words
The catalytic composition of claim 1, wherein the Fischer-Tropsch catalyst is precipitated iron or fused iron.
Claim 8
Dependent Claim
50 words
A process for the production of a catalyst, which comprises mixing intimately a high silica zeolite with a Fischer-Tropsch catalyst and then impregnating the mixture with a solution containing at least one metal salt selected from the group consisting of salts of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum.
Claim 9
Dependent Claim
50 words
A process for the production of a catalyst, which comprises mixing intimately a high silica zeolite with a Fischer-Tropsch catalyst and then impregnating the mixture with a solution containing at least one metal salt selected from the group consisting of salts of ruthenium, rhodium, platinum, palladium, iridium, cobalt and molybdenum.
Claim 10
Dependent Claim
30 words
The process of claim 7, wherein the mixing is carried out by a gel mixing process comprising mixing and kneading previously prepared iron oxide hydrated gel with a zeolite powder.
Claim 11
Dependent Claim
59 words
The process of claim 7, wherein the mixing is carried out by a gel mixing process comprising suspending a zeolite powder in a solution containing an iron salt selected from the group consisting of iron nitrate, chloride, sulfate, carbonate and oxalate, adding an alkali thereto to precipitate iron oxide and thus obtaining a uniform mixture of iron and zeolite.
Claim 12
Dependent Claim
35 words
The process of claim 7, wherein the mixing is carried out by a dry mixing process comprising mixing and grinding iron oxide and zeolite powder and thus obtaining a uniform mixture of iron and zeolite.
Claim 13
Dependent Claim
24 words
The process of claim 7, wherein the impregnated mixture, after dried, is further subjected to calcination at a temperature of 300° to 550° C.
Claim 14
Dependent Claim
21 words
The process of claim 7, wherein the high silica zeolite has a silica to alumina mole ratio of at least 12.
Claim 15
Dependent Claim
25 words
The process of claim 7, wherein at least one member selected from the group consisting of alumina, silica, silica-alumina and hydrates thereof is further added.
Claim 16
Dependent Claim
31 words
The process of claim 9, wherein at least one member selected from the group consisting of alumina, silica, silica-alumina and hydrates thereof is further added before the precipitation of iron oxide.
Claim 17
Dependent Claim
9 words
A catalyst produced by the process of claim 11.
References Cited (Backward Citations)
US4157338A
Cited
US4131568A
Cited
US4086262A
Cited
US4269783A
Cited
US4279830A
Cited
US4207208A
Cited
US4556645A
Cited
US4579830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-10 | 1990-05-12 | 1990-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-10 | 1994-05-12 | 1994-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-10 | 1998-05-12 | 1998-11-11 | $7700.00 | Window Closed / Lapsed |