Partial Oxidation of Methane and Methanol on Vanadium Oxide Catalysis

这是一项研究甲烷部分氧化为甲醇的分子氧或氧化亚氮在钒基催化剂。几种类似的二氧化硅负载钒催化剂，不同的负载和预处理，被使用。在反应条件下也检查了甲醇的氧化，以便确定速率常数。温度程序反应，红外和拉曼光谱，以及选择性化学吸附被用来表征催化剂表面。测定了甲烷和甲醇氧化的动力学，并用于测试各种机制假设。这项工作代表了一种系统的方法来解决当今最活跃的技术问题之一——甲烷（天然气）转化为液体燃料（甲醇）。

This is a study of the partial oxidation of methane to methanol by either molecular oxygen or nitrous oxide over vanadia-based catalysts. Several similar silica-supported vanadia catalysts, varying by both loadings and pretreatments, are used. The oxidation of methanol is also examined underreaction conditions so that rate constants can be determined. Temperature- programmed reaction,infrared and Raman spectroscopies, and selective chemisorption are used to characterize the catalyst surfaces. The kinetics of methane and methanol oxidations are determined and used to test various mechanistic hypotheses. This work represents a systematic approach to one of the most active technological problems of the times--the conversion ofmethane (natural gas) into a liquid fuel (methanol).