高校化学工程学报2016，Vol.30Issue(5)：1095-1103,9.DOI:10.3969/j.issn.1003-9015.2016.05.016
固定床反应器甲醇制烯烃反应过程的CFD模拟
CFD Modeling of Methanol-to-Olefin Processes in Fixed Bed Reactors
俞路 1刘响 1宋小沫 1潘娜娜 1潘艳秋1
作者信息
- 1. 大连理工大学 化工学院，辽宁 大连 116024
- 折叠
摘要
Abstract
A one-dimensional quasi-homogeneous reactor model was established to simulate methanol-to-olefin processes in fixed bed reactors based on industrial MTO production. A lumped kinetic model with SAPO-34 catalyst was adopted. A porous medium transfer model and Spalart-Allmaras turbulence model were chosen during steady simulation in FLUENT software. The distribution of temperature and concentration fields in the reaction tube were obtained during simulation, and the applicability of the model was verified by comparing with literature data. The effects of operating parameters (feed temperature, operating pressure and feed ratio of water to methanol) on methanol conversion, olefin selectivity and molar ratio of ethylene to propylene were studied. The simulation investigated the distribution principles of temperature, composition, selectivity and other parameters along the reaction tube. The results show that these parameters affect methanol conversion and product selectivity. The optimum parameters are determined, which are feed temperature 723 ~ 773 K, operating pressure 0.3 ~ 0.4 MPa and feed ratio of water to methanol<0.5.These results are helpful for MTO research and applications.关键词
甲醇制烯烃/固定床反应器/模拟优化/集总动力学模型/FLUENTKey words
MTO(methanol-to-olefin)/fixed bed reactor/CFD(computational fluid dynamics)/lumped kinetic model/FLUENT分类
化学化工引用本文复制引用
俞路,刘响,宋小沫,潘娜娜,潘艳秋..固定床反应器甲醇制烯烃反应过程的CFD模拟[J].高校化学工程学报,2016,30(5):1095-1103,9.
