摘要
在对甲醇作为催化裂化部分进料可行性分析的基础上,开展了催化裂化条件下甲醇转化反应过程的研究。采用小型固定流化床装置,利用工业用催化裂化的GOR-II催化剂,考察了反应温度、剂醇比、空速、甲醇进料浓度、催化剂积炭等反应条件对甲醇转化率及低碳烯烃收率的影响规律。在反应温度500℃、剂醇质量比16、空速0.9 h-1、w=0.4的甲醇水溶液进料和催化剂无积炭的条件下,低碳烯烃产率为19.78%,选择性为59.55%。结果表明:甲醇作为催化裂化过程部分进料可获得较高的低碳烯烃产率。
To show the feasibility of using methanol as a supplement of the FCC feedstock, experiments were carried out in a lab-scale fixed-fluidized bed reactor on GOR-Ⅱ equilibrium FCC catalyst. The effects of operating parameters, such as temperature, mass ratio of catalyst to methanol, feed methanol concentration and space velocity, on methanol conversion and light olefins yield were investigated. At 500 ℃, with mass ratio of catalyst to methanol 16, space velocity 0. 9 h^-1 , mass fraction of feed methanol 0. 4, the yield and selectivity of light olefins are 19.78% and 59.55%, respectively, when the catalyst is free of carbon deposit. This result shows that a high yield of light olefins from methanol conversion can be achieved, indicating that methanol can be used as a supplement of the feedstock of FCC.
出处
《华东理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第1期19-22,41,共5页
Journal of East China University of Science and Technology
基金
国家自然科学基金资助项目(20343004)
关键词
甲醇
催化裂化
低碳烯烃
工艺条件
methanol
catalytic cracking
light olefins
reaction condition
