催化裂化反应-再生系统机理建模的研究  

Modeling of reactor-regenerator system in fluid catalytic cracking unit

作　　者：周璟[1] 楚纪正[1] 姜浩[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京市100029

出　　处：《炼油技术与工程》2011年第2期18-25,共8页Petroleum Refinery Engineering

基　　金：国家"863"项目(2007AA04Z191)

摘　　要：根据集总反应动力学模型以及烧焦动力学模型,建立并求解了催化裂化机理模型。通过对整个流程模块化及建立子模块模型使得该方法能够适用于不同的催化裂化装置。通过参数优化,调整反应动力学常数以及再生催化剂的焦炭量和温度,使得建立的机理模型和工业生产实际相吻合。以所建立的机理模型为研究对象,考察了提升管反应温度、反应压力、剂油比和原料油的性质对催化裂化油气产物分布的影响。通过与中国石油化工股份有限公司九江分公司一套催化裂化装置的生产数据比较,验证该模型具有较好的模拟精度,能够预测不同工况下油气的产物。A method of building up the mechanism model of fluid catalytic cracking unit based on lump model and combustion kinetic model is proposed. By separating the whole process into several parts according to their functions and constructing each of their models, the proposed method is applicable to different FCC u- nits. Through optimization of parameters which includes modifying kinetic reaction constants and the amount of coke on regenerated catalyst, the simulation results can reflect real commercial operations. With the proposed model as the research object, the impact of riser reaction temperature, pressure, catalyst to oil ratio and crude oil properties on product distributions of FCCU are studied. The comparison with the production data of a com- mercial FCCU has verified that the model has a good modeling accuracy and can predict oil and gas products at different operating conditions precisely.

关 键 词：催化裂化 机理模型 七集总反应 参数优化 操作条件 

分 类 号：TE624.41[石油与天然气工程—油气加工工程]