Effect of calcination temperature and reaction conditions on methane partial oxidation using lanthanum-based perovskite as oxygen donor
作者： Xiaoping DAI , Changchun YU , Ranjia LI , Qiong WU , Kaijiao SHI
DOI: 10.1016/S1002-0721(08)60092-7
关键词:
摘要: We investigated the effect of calcination temperature, reaction and different amounts replenished lattice oxygen on partial oxidation methane (POM) to synthesis gas using perovskite-type LaFeO3 oxide as donor instead gaseous oxygen, which was prepared by sol-gel method, oxides were characterized XRD, TG/DTA, BET. The results indicated that particle size increased with temperature increasing, while BET CH4 conversion declined increasing in absence oxygen. CO selectivity remained at a high level such above 92%, slightly increased. Exposure atmosphere enhanced migration bulk time online owing loss reduction oxidative stated Fe ion simultaneously. favorable species from toward surface for production selectivity. product distribution evolution POM sequential redox determined optimal process should decline total methane, increase methane.
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