V2O5催化甲烷液相部分氧化工艺过程研究Study on the Partial Oxidation Process of Methane in Liquid Phase Catalyzed by V2O5
陈立宇,杨伯伦,张秀成,董武,曹凯
摘要(Abstract)：
以V2O5为催化剂,在发烟硫酸中进行了甲烷液相选择性氧化的研究工作,考察了V2O5催化剂用量、反应温度、反应时间、发烟硫酸浓度等工艺条件对反应收率的影响,进行了甲烷液相选择性氧化的催化机理探讨和宏观动力学推导。甲烷在部分氧化反应中首先转化为硫酸甲酯,后者进一步水解得到甲醇。甲烷转化率可达54.5%,选择性45.5%,相应的工艺条件为催化剂用量0.0175mol、反应温度180℃、发烟硫酸中SO3含量50%(wt)、反应时间2h。V2O5催化甲烷液相部分氧化反应遵循亲代取代机理,甲烷液相部分氧化反应为一级反应。
关键词(KeyWords)： 甲烷;液相部分氧化;V_2O_5催化剂;发烟硫酸;催化反应机理;宏观动力学模型
基金项目(Foundation): 陕西省教育厅专项基金(01JK097)。
作者(Author): 陈立宇,杨伯伦,张秀成,董武,曹凯
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