朱嘉嘉,成有为,王丽军,李希

• 1:浙江大学 化学工程与生物工程学院，浙江 杭州 310027

摘要(Abstract)：

采用微型固定床反应器全面研究了甲醇制丙烯（MTP）反应过程，考察了甲醇单独进料、不同烯烃单独进料、甲醇和烯烃混合进料三种条件下的反应规律。结果表明，在工业H-ZSM-5催化剂上甲醇主要发生甲基化和裂解反应，C₂~C₅烯烃主要发生叠合-裂化反应，C₆和C₇烯烃主要发生裂解反应，甲醇通过一系列甲基化和烯烃裂化路径转化为丙烯，生成丙烯的反应步骤都是快反应，而甲醇裂化、乙烯转化和生成烷烃及芳烃的副反应都是慢反应。提出了MTP的复杂反应网络与动力学模型，通过实验数据的拟合获得了各步反应的动力学参数，其中甲醇甲基化和裂解反应的表观活化能大于零，烯烃叠合-裂化的表观活化能小于零，是裂化吸热反应与表面吸附放热耦合作用的结果。

关键词(KeyWords)： 甲醇制丙烯（MTP）;反应网络;动力学模型;H-ZSM-5

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（U1162125，U1361112）。

作者(Author): 朱嘉嘉,成有为,王丽军,李希

DOI: 10.3969/j.issn.1003-9015.2017.03.014

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