偏三甲苯多效热集成分离工艺的模拟研究  

SIMULATION STUDY OF 1,2,4-TRIMETHYLBENZEN SEPARATION PROCESS WITH MULTI-EFFECT HEAT INTEGRATION DISTILLATION

作　　者：徐振凯[1] 马海洪[1] 

机构地区：[1]天津大学石油化工技术开发中心,天津300072

出　　处：《石油炼制与化工》2011年第6期73-76,共4页Petroleum Processing and Petrochemicals

摘　　要：采用化工流程模拟软件Aspen Plus、选取PR-BM热力学模型对从C9芳烃分离精制偏三甲苯的工艺进行模拟研究。通过对不同工艺流程的比较和分析,发现在精馏分离流程中,采用双效热集成技术可以明显降低精馏分离工艺的能耗,与传统精馏工艺流程相比,其节能率可以达到64.79%;偏三甲苯产品的纯度达到98.51%,收率为90.54%。The simulation study of separating 1,2,4-trimethylbenzene from C9 aromatics was carried out using chemical flowsheet simulation software Aspen Plus and selecting PR-BM equation as thermodynamic model. Through comparing and analyzing the simulation results of various separation processes, it can be seen that using double-effect heat integration distillation technology can significantly reduce the energy consumption of distillation process. The energy saving rate can reach 64. 79% ,the product purity and yield are 98.51% and 90. 54% ,respectively.

关 键 词：偏三甲苯 分离流程 热集成 节能 多效精馏 

分 类 号：TQ241[化学工程—有机化工]