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综述了SAPO 34分子筛上进行的MTO反应机理、反应动力学和反应过程中的积炭研究。MTO反应机理可以分成三步 :在分子筛表面生成甲氧基、形成第一个C -C键、生成C3 、C4。反应动力学较有代表性的是Bos等[1] 提出的涉及积炭反应的 12反应模型。反应过程中的积炭包括积炭生成机理、积炭对MTO反应的影响、延缓积炭的方法、积炭动力学模型、烧炭再生等内容
The MTO reaction mechanism, reaction kinetics and carbon deposition during the reaction process on SAPO 34 zeolite were reviewed. MTO reaction mechanism can be divided into three steps: the formation of the surface of the molecular sieve methoxy, the formation of the first C-C bond to generate C3, C4. The typical reaction kinetics is the 12-reaction model proposed by Bos et al. [1] that involves carbon deposition. Carbon deposition in the reaction process includes the mechanism of coke formation, the effect of carbon deposition on MTO reaction, the method of delaying carbon deposition, the kinetic model of coke deposition and the regeneration of charcoal