Patent ID: 6750258
Filing Date: 2004-06-15
Classification: B01J,C07C,C10G

Abstract:
A method of Fischer-Tropsch reaction, comprising the steps of:(a) providing a catalyst structure comprising a porous support with a first pore surface area and a first pore size of at least about 0.1 &mgr;m; a buffer layer disposed on said porous support; a porous interfacial layer with a second pore surface area and a second pore size less than said first pore size, said porous interfacial layer disposed upon said buffer layer; a Fischer-Tropsch catalyst placed upon said second pore surface area; and (b) passing a feed stream having a mixture of hydrogen gas with carbon monoxide gas through said catalyst structure and heating said catalyst structure to at least 200Â° C. at an operating pressure, said feed stream having a residence time within said catalyst structure less than 5 seconds, thereby obtaining a product stream of at least 25% conversion of carbon monoxide, and at most 25% selectivity to methane.