US4131568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic synthesis of low molecular weight hydrocarbons
Assignee: Air Products and Chemicals Inc
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Filing: 1975-08-14
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Granted: 1978-12-26
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Expires: 1995-08-14
Abstract
Abstract This invention relates to an improvement in a Fischer-Tropsch catalytic process for synthesizing a hydrocarbon stream and to the resulting catalyst. The improvement for synthesizing a high percentage of C 2 -C 4 hydrocarbons and obtaining excellent conversion percentages comprises conducting said reaction at a temperature of from about 275° to 375° C, a pressure of from about 75 to 350 psi, a space velocity of about 50 to 400 hours -1 in the presence of a catalyst comprising from about 100 to 1 parts iron per part copper, the catalyst being carried on a support selected from the group consisting of a zeolite, silica-alumina and mixtures thereof.
Inventors
- 👤 Charles M. Bartish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:15
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/74; B01J23/745; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/10; B01J29/14; B01J29/146; B01J29/18; B01J29/20; B01J29/24; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C2523/00; C07C2523/70; C07C2523/72; C07C2523/74; C07C2523/745; C07C2529/00; C07C2529/04; C07C2529/06; C07C2529/08; C07C2529/10; C07C2529/14; C07C2529/18; C07C2529/20; C07C2529/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
A cataylst composition comprising from about 100 to 1 parts iron per part copper carried on a support containing at least 5%-50% zeolite.
Claim 2
Dependent Claim
23 words
A cataylst composition comprising from about 100 to 1 parts iron per part copper carried on a support containing at least 5%-50% zeolite.
Claim 3
Dependent Claim
19 words
The catalyst of claim 1 wherein said catalyst comprises from about 20 to 5 parts iron per part copper.
Claim 4
Dependent Claim
15 words
The catalyst of claim 2 wherein said zeolite in said support is an ammonium-exchanged mordenite.
Claim 5
Dependent Claim
22 words
The catalyst of claim 2 wherein said zeolite in said support is an ammonium Y zeolite and said support contains 15%-25% zeolite.
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) | 1981-12-25 | 1982-06-26 | 1982-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-12-25 | 1986-06-26 | 1986-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-12-25 | 1990-06-26 | 1990-12-26 | $7700.00 | Window Closed / Lapsed |