Direct entropy minimization applied to the production of propylene glycol

被引：11

作者：

Manzi, Joao ^{[1
]}

Vianna, Regina ^{[2
]}

Bispo, Heleno ^{[2
]}

机构：

[1] Univ Catolica Pernambuco, Ctr Sci & Technol, BR-50050900 Recife, PE, Brazil

[2] Univ Fed Bahia, Dept Chem Engn, BR-40210630 Salvador, BA, Brazil

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2009年 / 48卷 / 01期

关键词：

Entropy; Chemical reactors; Modeling; Optimization; OPTIMIZATION;

D O I：

10.1016/j.cep.2008.06.004

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The optimization of the production of propylene glycol is based on direct entropy minimization subject to operational constraints. Entropy production model has been developed using mass, energy and entropy balances. By means of analytical derivatives it was found that a minimum of entropy production rate is reached when a particular relationship between the temperature of the inlet stream and the temperature of reaction is satisfied for a given residence time in the reactor. The results reveal the behavior and the new operating conditions, from which a higher conversion rate has been obtained when compared with the classical modus operandi. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：470 / 475

页数：6

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