浆态床合成气制二甲醚反应器数学模拟  

Mathematical Simulation for Synthesis of Dimethyl Ether from Syngas in a Slurry Bubble Column Reactor

作　　者：胡智力[1] 刘殿华[1] 房鼎业[1] 潘强[2] 颜蜀雋[2] 罗春桃[2] 

机构地区：[1]华东理工大学大型工业反应器工程教育部工程研究中心,化学工程联合国家重点实验室,上海200237 [2]神华宁煤集团煤化工公司研发中心,宁夏银川750411

出　　处：《化学反应工程与工艺》2010年第3期193-197,共5页Chemical Reaction Engineering and Technology

基　　金：国家科技支撑计划资助(2007BAA08B04)

摘　　要：建立了包括液相返混和催化剂颗粒沉降的合成气一步法制二甲醚浆态床反应器的数学模型,模拟计算了空速、原料气组成、反应温度、反应压力等反应条件对反应的影响。计算结果表明,CO转化率和二甲醚的选择性随温度增加、压力增大而提高,在一定温度、压力条件下,CO转化率随空速增大而减小,合成气含有一定量的CO2有利于CO转化率增加。A mathematical model for one step synthesis of dimethyl ether from syngas in a slurry bubble column reactor was developed, considering the influence of inert carrier backmixing and the influence of catalyst grain sedimentation. The effects of the space velocity, feed gas composition, temperature and pressure were discussed. The results showed that CO conversion and DME selectivity increased with the increase of temperature and pressure. Under the certain temperature and pressure conditions, the conversion of CO decreased with the increase of space velocity. Syngas with a certain amount of CO2 was benefit to increasing of CO conversion.

关 键 词：浆态床 合成气 二甲醚 数学模型 

分 类 号：TQ018[化学工程]