分壁精馏塔分离苯/甲苯/二甲苯的模拟工艺研究

摘要分壁精馏塔（简称分壁塔）在节能和节约投资方面都有很大的优势和潜力，因此近几年来人们对它的深入研究也越来越多。以等比例的苯、甲苯和二甲苯为原料，通过模拟工艺流程，研究分析了分壁塔的进料位置、隔板位置、回流比、侧线采出位置以及液汽相分流比与能耗、组分纯度的关系。研究结论显示，分壁塔的最适宜液相分流比和汽相分流比分别为0.65和0.45，与常规精馏塔相比，分壁塔分离所得的苯、甲苯和二甲苯的纯度高，冷凝负荷和热负荷分别比常规精馏塔降低31.066 9%和34.167 5%。

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	何西涛1
	干爱华1
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	陈宁1
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关键词：分壁精馏塔常规精馏塔完全热耦合精馏汽液分流比

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

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。

引用本文:

何西涛1, 干爱华1, 2, 陈宁1, 2.分壁精馏塔分离苯/甲苯/二甲苯的模拟工艺研究[J]. 化学工业与工程, 2012,29(2): 51-57

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, 2012,29(2): 51-57

[1]	史志刚，匡国柱用分隔壁精馏塔对苯类混合物分离的工艺分析［J］. 炼油与化工，2008，19(4): 17-20
[2]	GLINOS K A,MALONE M FOptimality regions for complex column alternatives in distillation systems ［J］. Chemical Engineering Research and Design,1988,66(3):229-240
[3]	HALVORSEN I J,SKOGESTAD SShortcut analysis of optimal operation of Petlyuk distillation ［J］. Industrial and Engineering Chemistry Research,2004,43(14)：3 994-3 999
[4]	HERNAADEZ S, JIMENEZ AControllability analysis of thermally coupled distillation systems［J］. Industrial and Engineering Chemistry Research,1999,38(10): 3 957-3 963[JP]
[5]	LUYBEN W LDerivation of transfer functions for highly nonlinear distillation columns［J］Industrial and Engineering Chemistry Research,1987,26(12): 2 490-2 495
[6]	REV E,EMTIR M,SZITKAI Z,et al. Energy saving of integrated and coupled distillation systems [J].Computers and Chemical Engineering.2001,25(1):119-140
[7]	SCHULTZ M A,STEWART D G,HARRIS J M,et al Reduce costs with dividingwall columns［J］. Chemical Engineering Progress,2002,98 (5): 64-71
[8]	BECKER H,GODORR S,KREIS HPartitioned distillation columns：Why,when and how ［J］. Chemical Engineering,2001,108 (1): 68-75
[9]	OLUJI′C Z,JDECKE M,SHILKIN A,et al. Equipment improvement trends in distillation ［J］.Chemical Engineering and Processing,2009,48 (6):1 089-1 104
[10]	DUNNEBIER G, PANTELIDES C COptimal design of thermally coupled distillation columns［J］. Industrial and Engineering Chemistry Research,1999,38 (1):162-176
[11]	HERNANDEZ S, JIMENEZ AControllability analysis of thermally coupled distillation systems ［J］. Industrial and Engineering Chemistry Research,1999,38(10): 3 957-3 963
[12]	孙兰义，李军，李青松隔壁塔技术进展［J］. 现代化工，2008，28(9)：38-41
[13]	黄智贤，邱挺，吴燕翔分隔精馏塔分离烷烃混合物的模拟［J］，计算机与应用化学，2009，26（11）：1 407-1 410
[14]	钱春健，叶青，黄恒文，等DWC 分离苯/甲苯/二甲苯混合物的研究［J］. 江苏工业学院学报，2007，19（3）：15-18