Strategy of an Attainable Region Partition for Reactor Network Synthesis

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• 作者：Zhao Wen ; Zhou Chuanguang ; Zhang Zhishan ; Han Fangyu ; and Li Chengyue
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2002
• 出版时间：January 23, 2002
• 年：2002
• 卷：41
• 期：2
• 页码：190 - 195
• 全文大小：68K
• 年卷期：v.41,no.2(January 23, 2002)
• ISSN：1520-5045

文摘

This paper presents a strategy of an attainable region partition for the synthesis of reactornetworks. According to the definitions of objective function selectivity, instantaneous selectivity,and single yield, two concentration trajectory equations are developed under two extreme casesof continuous stirred-tank reactor (CSTR) and differential side-stream reactor (DSR) by meansof their geometrical characters and those of reaction and mixing in concentration space for theVan de Vusse reaction scheme. The two equations may be regarded as the optimization criterionof maximum selectivity for the reactor system. The concept of the maximum selectivity curve ispresented by extending the feed of the reactor system from pure component to arbitraryconcentration. The two-dimensional concentration space is divided into three regions (CSTRregion, plug-flow reactor region, and non-operation region) by the curves of maximum selectivityand maximum single yield. The property of the maximum selectivity curve is dS_R/dx = 0, andthat of the maximum single yield curve is S_R = 0. Three different regions have respectively thefollowing properties: CSTR region, dS_R/dx < 0, S_R > 0; PFR region, dS_R/dx > 0, S_R > 0; non-operation region, dS_R/dx > 0, S_R < 0. The feasible flow configuration of reactor networks can beconveniently determined by taking advantage of the properties of different regions and theirboundaries.