A simulationbased study of externally heatintegrated reactive distillation system

doi:10.3969/j.issn.0438-1157.2012.02.028

CIESC Journal ›› 2012, Vol. 63 ›› Issue (2): 538-544.DOI: 10.3969/j.issn.0438-1157.2012.02.028

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A simulationbased study of externally heatintegrated reactive distillation system

GAO Xiang¹, LIU Wei¹, CHEN Haisheng¹, HUANG Kejin¹, WANG San-Jang²

1School ofInformation Science and Technology，BeijingUniversity of Chemical Technology，Beijing 100029，China；2Department ofChemical and Material Engineering，Ta Hwa Instituteof Technology，Hsinchu 307，Taiwan，China

Received:2011-07-09 Revised:2011-10-25 Online:2012-02-05 Published:2012-02-05

一种外部热耦合反应蒸馏系统的模拟研究

高翔¹，刘伟¹，陈海胜¹，黄克谨¹，王聖潔²

1北京化工大学信息科学与技术学院，北京 100029；2大华技术学院化工与材料工程系，台湾新竹 3075. 浙江大学能源洁净利用与环境工程教育部重点实验室

通讯作者: 刘伟

Abstract

Abstract: In terms of the thermodynamic characteristics of conventional reactive distillation columns, an externally heat-integrated reactive distillation system (EHIRDS) is proposed and studied. It is comprised of a high-pressure reactive column and a low-pressure separation column, with external heat integration between the rectifying section of the former and the stripping section of the latter. A hypothetical quaternary ideal exothermic reaction A + B ? C + D is chosen to evaluate the EHIRDS with an objective function of minimization of total annual cost (TAC) and reduction in operating cost is acquired. The simplification of the EHIRDS with three heat exchangers (i.e., S-EHIRDS) can lead to a further reduction in capital investment and operating cost. These simulation results confirm preliminarily the great potentials of the EHIRDS.

Key words: reactive distillation, externally heat integration, thermodynamic efficiency, process design

摘要： 根据常规反应蒸馏塔的热力学特性提出并研究了一种外部热耦合反应蒸馏系统（EHIRDS）。EHIRDS由一个高压的反应塔和一个低压的分离塔组成，且前者的精馏段与后者的提馏段进行热交换。引入四元理想放热反应体系A + B ? C + D，并以年总费用（TAC）最小为目标函数，对EHIRDS进行了研究，发现EHIRDS能够降低操作费用。采用三个换热器简化EHIRDS的设计（即S-EHIRDS）还可以进一步降低设备投资和操作费用。这些仿真结果初步确认了EHIRDS相比于常规设计具有更高的优越性。

关键词: 反应蒸馏, 外部热耦合, 热力学效率, 过程设计

CLC Number:

GAO Xiang, LIU Wei, CHEN Haisheng, HUANG Kejin, WANG San-Jang. A simulationbased study of externally heatintegrated reactive distillation system[J]. CIESC Journal, 2012, 63(2): 538-544.

高翔，刘伟，陈海胜，黄克谨，王聖潔. 一种外部热耦合反应蒸馏系统的模拟研究[J]. 化工学报, 2012, 63(2): 538-544.

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A simulationbased study of externally heatintegrated reactive distillation system

一种外部热耦合反应蒸馏系统的模拟研究

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