石油炼制与化工
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徐振凯,马海洪
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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%。
关键词: 偏三甲苯, 分离流程, 热集成, 节能, 多效精馏
Abstract: 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.
Key words: 1,2,4-trimethylbenzene, separation process, heat integration, energy saving, multi-effect distillation
徐振凯,马海洪. 偏三甲苯多效热集成分离工艺的模拟研究[J]. 石油炼制与化工, doi: .
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