天然气化工2016，Vol.41Issue(4)：15-19,5.
甲苯甲醇流化床催化制对二甲苯工艺研究
Study on the fluidized bed catalytic process for producing p-xylene from toluene and methanol
摘要
Abstract
The fluidized bed catalytic process for producing p-xylene (PX) from toluene and methanol was studied. The effects of catalyst particle size, coke deposition, temperature, pressure, water/toluene feed mass ratio and toluene space velocity on the reaction were investigated. The results show that pressure has little influence on the conversion and selectivity, and within a proper catalyst size and coke content range, the optimum process conditions are determined as follows:temperature of 500-520℃, toluene feed mass ratio of 0.2, and toluene liquid hour space velocity of 2-4h-1. Under the optimized conditions, the per-pass conversion of toluene could reach more than 50%with a methanol conversion of more than 98%and a PX selectivity of more than 85%.关键词
甲苯/甲醇/对二甲苯/合成工艺/流化床Key words
toluene/methanol/p-xylene/synthetic process/fluidized bed分类
化学化工引用本文复制引用
刘弓,郝西维,汪彩彩,徐瑞芳,孙西巍..甲苯甲醇流化床催化制对二甲苯工艺研究[J].天然气化工,2016,41(4):15-19,5.基金项目
陕西省科技统筹重大专项(2011KTZB01-01-01) （2011KTZB01-01-01）
