PREPARATION METHOD OF SYNTHETIC NATURAL GAS USING GAS PRODUCED BY STRAW

摘要

A preparation method of synthetic natural gas using gas produced by straw comprises the following steps: after the steps of compressing and heating, conveying the gas produced by straw to a carbon monoxide and hydrogen converter; reacting in the presence of nickel group catalysts to obtain converted mixture gas with main components of methane, carbon dioxide, water and impurities; and obtaining synthetic natural gas with methane content of more than 90% after going through processes of cooling, gas-liquid separating and purifying. The method has high efficiency of energy utilization, and can not only use existing natural gas infrastructure for civilian use, but also act as a means of energy supply for internal combustion engine or small gas turbine.