甲醇制烯烃反应动力学及反应器模型研究进展

甲醇制烯烃（MTO）工艺是现代煤化工领域的研究热点，MTO反应动力学及其反应器模型研究是高效反应器开发和工业装置操作优化的基础。本文综述了甲醇制烯烃反应动力学研究进展，详细论述了机理型动力学模型、八集总动力学模型、五集总动力学模型，指出集总动力学模型适用于描述MTO反应过程，如何考虑水、积炭等因素的影响是MTO动力学研究的难点和关键。结合现有动力学模型，评述了MTO反应过程在工业规模的固定床反应器、提升管反应器、循环流化床反应器、湍动流化床反应器中产物分布和转化率模拟情况，结果表明：循环流化床反应器和湍动流化床反应器适合MTO工业过程。最后指出，甲醇制烯烃反应动力学下一步研究方应集中于工业规模流化床反应器气固两相流动模拟，以及与动力学模型结合获得准确预测工业反应结果的MTO反应器模型。

Advances in reaction kinetics and reactor models for methanol to olefins reaction

The methanol to olefins (MTO) process has attracted considerable attention in modern coal chemical industry. MTO reaction kinetics and reactor models play a key role in designing highly effective commercial reactor and optimizing operation conditions of MTO units. In this paper the advance in MTO reaction kinetics research is reviewed. Mechanistic kinetic model，eight lumps model，and five lumps model are discussed. The lumping models are suitable for describing MTO process，while coking and water content have a significant influence on reaction behavior. According to kinetics models，simulations of product distribution and methanol conversion in commercial scale MTO process in fixed bed reactor，riser reactor，circulating fluidized reactor and turbulent fluidized reactor are summarized. The circulating fluidized reactor and turbulent fluidized reactor are ideal reactors for commercial MTO process. Further researches on kinetics of MTO are also proposed.