Role of Cu-Mfi Zeolite Catalyst on Direct Conversion of Methane Ethane to Gasoline

Hzsm-5 (si/al = 30), silicalite and cu-mfi with different copper concentrations were synthesized by direct synthesis method. the catalyst samples were characterized using x-ray diffraction (xrd), fourier transform infrared (ftir) and temperature programmed desorption of ammonia (tpd-nhj techniques. the catalytic performance of the samples was evaluated in a continuous micro packed-bed reactor. the reaction was performed at reaction temperature 800 °c under atmospheric pressure. the effects of cu content on methane conversion and products selectivity were investigated. characterization results revealed that the samples were mfl-zeolite catalysts and the copper species most probably occluded in the defect sites of the zeolite. modification of zeolite with copper resulted in the en-hancement of methane conversion up to 15 %. the experimental results using cu(0.1)-mfi demonstrated a high selectivity to gasoline, which is 29.7%