减压蜡油加氢裂化六集总动力学模型研究  

STUDY ON SIX-LUMPED KINETIC MODEL FOR VACUUM GAS OIL HYDROCRACKING

作　　者：彭冲[1] 方向晨[1] 韩龙年[1] 曾榕辉[1] 

机构地区：[1]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《石油炼制与化工》2014年第1期35-41,共7页Petroleum Processing and Petrochemicals

基　　金：国家"十二五"科技支撑计划(2012BAE05B04);中国石油化工股份有限公司合同项目(101102)

摘　　要：以实验室加氢裂化催化剂A的加氢裂化反应结果为基础，建立了减压蜡油加氢裂化六集总动力学模型。六集总的划分原则以实际加氢裂化产品切割方案为参照，按馏程把原料油和生成油划分为六个集总，即减压蜡油-加氢裂化尾油（〉360℃）、柴油馏分（290--360℃）、喷气燃料馏分（175～290℃）、重石脑油（65～175℃）、轻石脑油（〈65℃）和炼厂气（C4-）。在Matlab201lb数值计算软件上，利用非线性最小二乘法对动力学模型参数进行了优化回归。通过统计分析，忽略部分集总间的反应，模型预测所得加氢裂化产物收率与实验结果的最大偏差为1．80％，满足工业应用要求。A six-lumped high pressure hydrocracking kinetic model based on VGO hydrocracking ex- periment data of catalyst A was established to predict product yields. Based on the actual hydrocracking product cutting scheme, the oils （feedstock and product oils） were divided into six lumps according to the fixed distillation range： vacuum gas oil and unconverted bottom oil （〉360 ℃）, diesel fraction （290--360 ℃）, kerosene fraction （175--290 ℃）, heavy naphtha fraction （65--175 ℃）, light naphtha fraction （〈65 ℃） and refinery gas （C4-）. The parameters of the lumped kinetic model were regressed from the hydrocracking experiment data by nonlinear least squares algorithm in Matlab 2011b. Partial re- action pathways among six lumps were ignored after statistics analysis. The results showed that the cal- culation was in good agreement with the experimental product yields with the largest deviation of 1.8 afro which met the industrial demands.

关 键 词：减压蜡油 加氢裂化 集总 动力学模型 

分 类 号：TE624.432[石油与天然气工程—油气加工工程]