文献类型：期刊文献

中文题名：高碳α-烯烃装置产品分离单元的方案设计与过程模拟

英文题名：Process Design and Modeling of Separation Unit forα-olefin Plant

作者：邢玉林[1];李杨[2]

机构：[1]中石化上海工程有限公司,上海200120;[2]华东理工大学化工学院,上海200237

年份：2022

卷号：50

期号：10

起止页码：119

中文期刊名：广州化工

外文期刊名：GuangZhou Chemical Industry

语种：中文

中文关键词：乙烯齐聚;高碳α-烯烃;分离;方案设计;流程模拟

外文关键词：ethylene oligomerization;α-olefin;separation;scheme design;process simulation

摘要：基于Aspen Plus过程模拟,建立了18000 t/a高碳α-烯烃装置分离单元稳态模型,采用经参数回归的BWRS状态方程,通过流程模拟验证了分离方案的可行性,确定了满足分离要求的精馏参数,以及溶剂循环过程中1-辛烯循环量及甲苯损失量。分别采用减压精馏与常压精馏两种方案进行C-205辛烯精制塔流程设计,结合模拟结果进行设备、操作费用估算,结果表明,减压精馏方案(50 kPa)相较于常压精馏方案,即使增加了抽真空系统,设备费用仍低约30%,运行费用低4%。
Based on Aspen Plus process simulation,a steady-state model of the separation unit of 18000 t/a high carbonα-olefin plant was established.The parameter updated BWRS state equation was used to verify the feasibility of the separation scheme through process simulation.The distillation operation parameters which met the separation requirements were determined,as well as the cycle amount of 1-octene and toluene loss during the separation.C-2051-octene refining tower process design was carried out by using both vacuum distillation and atmospheric distillation.The equipment and operating cost were estimated in combination with the simulation results.The result showed that even if extra vacuum equipment was added,the equipment cost of vacuum distillation was about 30%lower and the operating cost was 4%lower than the atmospheric process.