Potential energy savings in ideal heat-integrated distillation column

被引：29

作者：

Nakaiwa, M ^{[1
]}

Huang, K ^{[1
]}

Owa, M ^{[1
]}

Akiya, T ^{[1
]}

Nakane, T ^{[1
]}

Sato, M ^{[1
]}

Takamatsu, T ^{[1
]}

Yoshitome, H ^{[1
]}

机构：

[1] Natl Inst Mat & Chem Res, Dept Chem Syst, Tsukuba, Ibaraki 305, Japan

来源：

APPLIED THERMAL ENGINEERING | 1998年 / 18卷 / 11期

关键词：

distillation; heat integration; energy savings; exergy;

D O I：

10.1016/S1359-4311(98)00030-1

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An ideal Heat-Integrated Distillation Column (HIDiC), having no reboiler and no condenser, is constructed in such a manner that its rectifying and stripping sections are separated, while connected through a compressor and a throttling valve. Its manipulation is completed by exchanging heat between the two sections. The ideal HIDiC is expected to be more efficient than conventional columns, at the expense of some energy to raise the pressure of the rectifying section. In this paper, it is shown by thermodynamical consideration that the ideal HIDiC has a high potential of texergy loss reduction in the operation compared with conventional columns. The effects of feed and distillate composition, and relative volatility on energy saving characteristics are simulated in this paper, and the possibility of energy saving is found for feed compositions. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：1077 / 1087

页数：11

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