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>> LFG (Land-Fill Gas) includes components of CH4, CO2, O2, N2, and water. The preparation of synthesis gas from LFG as a DME (Dimethyl Ether) feedstock was studied by methane reforming of CO2, O2 and steam over NiO-MgO-CeO2/Al2O3 catalyst. Our experiments were performed to investigate the effects of methane conversion and syngas yield on the amount of LFG components over NiO-MgO-CeO2/Al2O3 catalyst. Results were obtained through the methan reforming experiments at the temperature of 900°C and GHSV of 8,800. The results were as following; it has generally shown that syngas yield increase with the increase of oxygen and steam amounts and then decrease. Highly methane conversion of above 98% and syngas yield of approximately 60% were obtained in the feed of gas composition flow-rate of 243ml/min of CH4, 241ml/min of CO2, 195ml/min of O2, 48ml/min of N2, and 450ml/min of steam, respectively, under reactor pressure of 1 bar for 200 hrs of reaction time. Also, it was shown that catalyst deactivation by coke formation was reduced by excessively adding oxygen and steam as an oxidizer of the methane reforming.

A Effect of Reaction Conditions on Syngas Yield for the Preparation of Syngas from Landfill Gas