PROCESS FOR THE PREPARATION OF METHANE IN THE PRESENCE OF A THIORESISTANT CATALYST, AND CATALYST TO BE USED IN SUCH A PROCESS

摘要

1. Method of production of methane or of a methane-containing gas mixture from an initial mixture comprising in particular carbon monoxide, hydrogen and sulphur compounds, which consists in contacting the said initial mixture with a thioresistant catalyst, at a temperature lying between about 250 degrees C and 650 degrees C and at a pressure lying between 5 and 140 bars, characterized in that use is made, as a thioresistant catalyst, of a catalyst comprising a metal selected from the group comprising molybdenum, vanadium and tungsten and an activity promoter consisting of cobalt and/or nickel, which catalyst being deposited through impregnation onto a zirconium oxide carrier, the atomic ratio of the molybdenum, vanadium or tungsten metal to zirconium lying between 1/50 and 1/4.