Simulation of Separating Benzene/Toluene/Xylene with Dividing Wall Column

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Abstract Dividing wall column has a lot of advantages and potential in energy saving and investment saving, there are more and more researches on dividing wall column in recent years With equal proportion of benzene, toluene and xylene as raw materials and process simulation, the relationships between feed stage, wall position, reflux ratio, sidedraw position split ratios of liquid and vapor, and energy consumption,components’ purity were analyzed Results show that, the best liquid split ratio and the best vapor split ratio are 0.65 and 0.45 respectively Compared with conventional distillation towers, benzene, toluene and xylene obtained from dividing wall column are more purer, and the condenser duty and reboiler duty of dividing wall column are reduced by 31.066 9% and 34.167 5%, respectively

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	HE Xi-Tao-1
	GAN Ai-Hua-1
	2
	CHEN Ning-1
	2

Keywords： dividing wall column conventional distillation tower completely thermal coupling distillation split ratios of liquid and vapor

Received 2011-11-07;

Corresponding Authors: 干爱华 Email: ganaihua@tju.edu.cn

About author: 何西涛（1985-），男，山东汶上人，硕士研究生，现从事分壁精馏塔的工艺研究。

Cite this article:

HE Xi-Tao1, GAN Ai-Hua-1, 2 , CHEN Ning1, 2 .Simulation of Separating Benzene/Toluene/Xylene with Dividing Wall Column[J] Chemcial Industry and Engineering, 2012,V29(2): 51-57

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