Novel catalysts and their preparation and process for the production of liquid paraffins.

摘要

Catalysts comprising a medium to large port zeolite modified with a reducible metal salt of an element selected from the group consisting of Group VIII, IB or IIB elements and, a Fischer-Tropsch catalyst wherein the ratio of zeolite to Fischer-Tropsch component is from 0.1 to 50:1 can be employed to produce liquid paraffins from synthesis gas. A process is employed which includes the step of contacting synthesis gas having a ratio of hydrogen to carbon oxides of from 0.1 to 10.0:1 over the foregoing catalyst at a reaction temperature of from 100 DEG C to 500 DEG C and at a pressure of from one atmosphere (0.1 MPa) to 200 atmospheres (20 MPa) and at a gas hourly spaced velocity of from 10 to 100,000. A method is also provided for the preparation of the combination catalyst. The liquid paraffin product produced is highly branched, relatively free from olefins and totally free from detectable oxygenates.