Deuterium isotope effects in methane partial oxidation to syngas zz:WANG Haiyou; AU Chak-tang

摘要

IN the past few years, there has been renewed interest in the partial oxidation of methane to syngas. The reaction is mildly exothermic and provides a H_2/CO ratio of about 2, whichis more suitable for methanol and Fischer-Tropsch synthesis. The catalysts used are mainly supported group VIII transition metals such as Ni, Ru, Rh, Pd, and Pt. Concerning the reaction pathway for methane partial oxidation to syngas, a unified viewpointhas not been reached so far. Many researchers believe that two stages are involved in the process: ( i ) complete oxidation of methane to CO_2 and H_2O, ( ii ) reforming of the remaining methane by H_2O and/or CO_2 formed in the first stage. Different from the above-mentioned viewpoint, Schmidt et al.