Process for producing a methane-containing gas and arrangement therefor

摘要

The gaseous mixture obtained from the partial oxidation of coal and/or heavy oil is desulfurized. Thereafter, the gaseous mixture is admitted into a reactor wherein it simultaneously undergoes a conversion reaction and a methanization reaction. The reactions take place at a temperature between 280 DEG and 500 DEG C and at a pressure between 3 and 60 atmospheres in excess of atmospheric pressure. The reactions proceed catalytically in the presence of conventional catalysts. After having been subjected to the reactions, the gaseous mixture is conveyed to a scrubber for the removal of carbon dioxide. A gas containing at least 80 percent by volume of methane is obtained.