Patent ID: 8889089
Filing Date: 2014-11-18
Classification: B01D,C01B

Abstract:
1. A process for a reduction in the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in synthesis gas comprising these compounds, the process comprising the steps of: contacting the synthesis gas with a sulphur absorbent comprising material and thereafter with a catalyst comprising one or more metals selected from the group consisting of silver, gold, copper, palladium, platinum and their mixtures and supported on a carrier comprising at least one of the oxides of scandium, yttrium, lanthanum, cerium, titanium, zirconium, aluminium, zinc, chromium and molybdenum, to reduce the amount of the sulphur compounds from the synthesis gas; and subsequently, converting hydrogen cyanide to ammonia and carbon dioxide, and converting formic acid and its derivatives to carbon dioxide and hydrogen, to reduce the amount of the hydrogen cyanide, formic acid and formic acid derivatives in the synthesis gas, wherein the steps of reducing the amount of sulphur compounds, hydrogen cyanide, formic acid and formic acid derivatives in the synthesis gas take place without promoting methanation or water gas shift reaction.