Dynamic simulation for internally heat-integrated distillation columns (HIDiC) for propylene-propane system

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题名:	Dynamic simulation for internally heat-integrated distillation columns (HIDiC) for propylene-propane system
作者:	Ho, T.-J., Huang, C.-T., Lin, J.-M., Lee, L.-S.
贡献者:	Department of Chemical and Materials Engineering, Tunghai University
关键词:	Distillation;Dynamic simulation with control;Heat integration;Variable column pressure
日期:	2009
上传时间:	2013-06-11T09:05:40Z (UTC)
摘要:	This paper reports a dynamic simulation study of the internally heat-integrated distillation column (HIDiC) using equilibrium-based models. First, three different HIDiC structures, i.e. an ideal HIDiC, a HIDiC with a pre-heater, and a HIDiC with a reboiler, are analyzed by control degrees of freedom (DOF). The reboiler is considered to be a necessary part of the HIDiC from DOF analysis, thermodynamic analysis, and engineering judgment. Then, a heuristic HIDiC control configuration including a bottoms reboiler control is proposed. A modular structured simulator for dynamic distillation columns using MESH equations is developed. The simulator also considers: (1) variable column pressure on each tray of the rectifying section, (2) dynamic vapor holdup, and (3) dynamic energy balance. In addition, the SRK equation of state is employed for estimating thermodynamic properties. A typical medium-pressure HIDiC for separation of propylene and propane explored by Olujic et al. [Olujic, Z., Sun, L., de Rijke, A., & Jansens, P. J. (2006). Conceptual design of an internally heat-integrated propylene-propane splitter. Energy, 31, 3083] is adopted as numerical examples for dynamic simulation studies. ? 2009 Elsevier Ltd. All rights reserved.
關聯:	Computers and Chemical Engineering 33 (6) , pp. 1187-1201
显示于类别:	[化學工程與材料工程學系所] 期刊論文

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