Conversion of synthesis gas to high octane predominantly olefini

Details Conversion of synthesis gas to high octane predominantly olefini Conversion of synthesis gas to high octane predominantly olefini

1978-07-21

1979-10-30

Mars, Howard T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252455Z, 252431N, 2604496M, C07C 104

Patent

active

041728432

ABSTRACT:
An improved method is disclosed for converting synthesis gas to hydrocarbon mixtures wherein the syngas is contacted with a special catalyst comprising a crystalline zeolite having a silica-to-alumina ratio of greater than 200 (including zeolites containing essentially no alumina) and an (R.sub.2 O+ M.sub.2 /.sub.n O): SiO.sub.2 ratio of less than 1.1:1 where M is a metal other than a metal of Group IIIA, n is the valence of said metal, and R is an alkyl ammonium radical, said organosilicate being characterized by a specified x-ray diffraction pattern. In a specific embodiment of this invention, synthesis gas is contacted with a catalyst comprising an intimate mixture of said crystalline zeolite catalyst and iron-containing, Fischer-Tropsch catalyst to produce a liquid hydrocarbon product having a boiling range of less than 400.degree. F. at a 90 percent overhead and being a predominantly olefinic product, wherein the structure of the olefins is substantially branched chain with internally-positioned double bonds.

REFERENCES:
patent: 2537699 (1951-02-01), Pierce
patent: 2609382 (1952-09-01), Moyland
patent: 2702814 (1955-02-01), Riblett et al.
patent: 2755308 (1956-07-01), Rottig et al.
patent: 3941871 (1976-03-01), Dwyer et al.
patent: 4086262 (1978-04-01), Chang et al.

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