Patent ID: 9139490
Filing Date: 2015-09-22
Classification: C07C,Y02P

Abstract:
1. A process for the production of C2-C4 olefins comprising the step of contacting syngas with a iron-based catalyst at a temperature in the range from 250° C. to 350° C. and at a pressure in the range from 10 bar to 40 bar, the catalyst including iron and/or iron oxide particles as active component arranged on a metal oxide support or matrix chosen from the group consisting of alumina, titania, silica, magnesium oxide, silica-alumina, ferrous materials and mixtures thereof, wherein said iron-based catalyst includes nano-sized Fe particles as active component which are dispersed on a support or matrix, said nano-sized Fe particles being Fe nano-particles, Fe alloy nano-particles, nano-particles having an iron or iron alloy core and an iron-oxide shell or mixtures thereof, and wherein the catalyst includes a promoter of the catalytic activity chosen from elements, molecules/compounds and combinations thereof including aluminium, potassium, calcium, magnesium, silicon, manganese and copper.