Development of Active and Stable Catalysts for Synthesis Gas Production

Abstract

Consuming two major greenhouse gases, carbon dioxide (CO2) and methane (CH4), to produce synthesis gas, which is a mixture of carbon monoxide (CO) and hydrogen (H2), carbondioxide reforming of methane shows signi cant environmental and economic bene ts. However, the process has not found wide industrial application due to severe catalyst deactivation, basically caused by carbon formation. Therefore, it is of great interest to develop stable catalysts without severe deactivation. This work is mainly focused on the development of base metal like nickel-based catalysts to achieve stable operation for CO2 reforming of CH4. The Nickel (Ni)- catalyst prepared by impregnation method using support g-Al2O3 and di erent types of promoters (CeO2, La2O3, and ZrO2) to improve activity, stability and selectivity in order to reduce coke formation and to achieve long-term operation. The catalysts were characterized by the Atomic absorption spectroscopy, X- Ray diffracion and Scanning electron microscopy.