Claims
- 1. In the process of converting synthesis gas, comprising carbon monoxide and hydrogen, to a hydrocarbon product by contacting such at about 450 to 1000.degree. F with a catalyst comprising as a first component a metal carbon monoxide reduction catalyst and as a second component an acidic crystalline aluminosilicate zeolite having a silica to alumina ratio of at least 12 and a constraint index of about 1 to 12; the improvement which comprises utilizing as said carbon monoxide reducing catalyst component a methanol synthesis catalyst comprising copper or chromium containing catalysts or mixtures thereof in a finely ground form and thereby converting said synthesis gas to substantially only C.sub.1 - C.sub.6 paraffins composed mainly of C.sub.2 - C.sub.4 paraffins.
- 2. The method of claim 1 wherein said crystalline aluminosilicate is selected from a class of crystalline zeolites comprising ZSM-5, ZSM-11, ZSM-12, ZSM-35 and ZSM-38.
- 3. The method of claim 1 wherein the synthesis gas hydrogen to carbon oxides volume ratio is maintained within the range of from 0.2 to 6.0
- 4. The method of claim 1 wherein said methanol synthesis catalyst comprises:
- metals or oxides of zinc together with chromia;
- metals or oxides of zinc and copper together with chromia or alumina; or
- metals or oxides of zinc, copper, chromium and lanthanum.
Parent Case Info
This application is a continuation-in-part of application Ser. No. 566,162 filed Apr. 8, 1975 and now abandoned which is a continuation-in-part of application Ser. No. 463,711, filed Apr. 24, 1974 now abandoned.
US Referenced Citations (14)
Foreign Referenced Citations (4)
Number |
Date |
Country |
828,228 |
Oct 1975 |
BE |
1,036,837 |
Aug 1958 |
DT |
293,185 |
Jul 1928 |
UK |
378,943 |
Aug 1952 |
UK |
Non-Patent Literature Citations (2)
Entry |
Abdulahad et al., Brennstoff Chemie, 25, No. 4, (1972) 187-188. |
Storch et al., Fischer Tropsch & Related Synthesis, John Wiley & Sons, New York, 1951, 428-436, 454-458. |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
566162 |
Apr 1975 |
|
Parent |
463711 |
Apr 1974 |
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