乳酸提纯反应精馏新工艺非平衡级稳态模拟  

Non-equilibrium stage static simulation of lactic acid purification reactive distillation process

作　　者：张猛[1] 马利[2] 杨基础[2] 徐用懋[1] 

机构地区：[1]清华大学自动化系,北京100084 [2]清华大学化学工程系,北京100084

出　　处：《化工学报》2005年第6期1031-1034,共4页CIESC Journal

摘　　要：Purification of lactic acid by reactive distillation (RD) is a novel technology which has many excellent characteristics compared with traditional technologies. This paper presented a non-equilibrium model for lactic acid purification RD pilot column. An Improved Separation Efficiency Function (ISEF) was proposed based on de-coupling and pseudo-homogenous assumptions, which greatly improved the solving efficiency and made this model suitable for practical application. Simulation results were consistent with the experiments in different conditions, and the simulation results outperformed the simulator ASPEN PLUS in which the equilibrium stage assumptions were adopted. The static characteristics of the pilot setup were also investigated.The analysis result could help to accelerate the commercialization of the lactic acid purification RD technology.Purification of lactic acid by reactive distillation (RD) is a novel technology which has many excellent characteristics compared with traditional technologies. This paper presented a non-equilibrium model for lactic acid purification RD pilot column. An Improved Separation Efficiency Function (ISEF) was proposed based on de-coupling and pseudo-homogenous assumptions, which greatly improved the solving efficiency and made this model suitable for practical application. Simulation results were consistent with the experiments in different conditions, and the simulation results outperformed the simulator ASPEN PLUS in which the equilibrium stage assumptions were adopted. The static characteristics of the pilot setup were also investigated. The analysis result could help to accelerate the commercialization of the lactic acid purification RD technology.

关 键 词：反应精馏 乳酸 非平衡级模型 稳态模拟 

分 类 号：TQ018[化学工程]