汽油催化裂解制丙烯集总动力学模型Ⅱ.动力学模型分析  

Kinetic Modeling of Gasoline Catalytic Cracking to Propylene Ⅱ.Model Analysis

作　　者：吕庐峰[1] 李博[2] 何金龙[1] 侯栓弟[1] 

机构地区：[1]中国石化石油化工科学研究院,北京100083 [2]中国石化齐鲁分公司,山东淄博255411

出　　处：《石油学报（石油加工）》2013年第3期409-415,共7页Acta Petrolei Sinica(Petroleum Processing Section)

基　　金：国家重点基础研究发展计划"973"项目(2012CB224806)资助

摘　　要：采用小型固定流化床实验装置,分别考察了反应温度、剂/油质量比和质量空速对FCC汽油催化裂解反应产物分布的影响,并以实验数据对汽油催化裂解制丙烯动力学模型进行了验证。结果表明,反应温度是影响转化率和产物分布的主要因素,提高反应温度有利于汽油裂解和丙烯生成;增大剂/油质量比、降低质量空速均有利于提高转化率,反应温度大于600℃时,剂/油质量比和质量空速对转化率和产物分布的影响减弱。所建立的动力学模型与实验数据吻合较好,丙烯的产物分布预测计算误差绝对值小于5%。The effects of reaction temperature, catalyst/oil mass ratio and mass space velocity on the product distribution of FCC gasoline catalytic cracking were investigated by using a fixed-fluidized bed reactor. With the experimental results the kinetic model of FCC gasoline catalytic cracking to produce propylene was analyzed and verified. The results indicated that the reaction temperature was the primary factor affecting gasoline conversion rate and product distribution and high temperature was beneficial to enhance gasoline cracking and propylene production. And the gasoline cracking rate could be improved by increasing catalyst/oil mass ratio or decreasing mass space velocity. When the reaction temperature exceeded 600℃, the effects of catalyst/oil mass ratio and mass space velocity on gasoline conversion rate and product distribution became weakening. The calculated results of cracking product distribution according to the kinetic model were well consistent with the experimental data with the calculation deviation of propylene of less than 5 %.

关 键 词：催化裂解 丙烯 汽油馏分 动力学模型 

分 类 号：TE624.4[石油与天然气工程—油气加工工程] TQ221.212[化学工程—有机化工]