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Title: | Multiple Steady-States in a Heat Integrated Distillation Column (HIDiC) |
Authors: | Kano, Manabu ![]() ![]() ![]() Fukushima, Tomohiro Makita, Hiroshi Hasebe, Shinji ![]() ![]() |
Keywords: | Heat Integrated Distillation Column Multiple Steady-States Instability Condition Energy Savings Compressor |
Issue Date: | 2007 |
Publisher: | The Society of Chemical Engineers, Japan |
Citation: | Manabu Kano, Tomohiro Fukushima, Hiroshi Makita and Shinji Hasebe; "Multiple Steady-States in a Heat Integrated Distillation Column (HIDiC)", J. Chem. Eng. Japan, Vol. 40, 824-831 (2007) . |
Journal title: | Journal of Chemical Engineering of Japan |
Volume: | 40 |
Issue: | 10 |
Start page: | 824 |
End page: | 831 |
Abstract: | A heat integrated distillation column (HIDiC) is a new and highly energy-efficient distillation process. In the present work, multiple steady-states in HIDiC are analyzed. In HIDiC, the pressure in the rectifying section is kept higher than that in the stripping section by using a compressor to enhance heat transfer from the rectifying section to the stripping section through the wall. Therefore, an energy balance, particularly the influence of the compressor, must be taken into account for the analysis. In this research, two types of operation policies are investigated: P1) constant compressor power and P2) constant pressure ratio. First, the conditions for making multiple steady-states are derived on the basis of the first principle model of the HIDiC. Then, the analysis results are validated through simulations. The results show that: 1) the instability condition depends largely on the compressor operation policies; 2) in case P1, multiple steady-states appear when the top product is highly pure, the bottom product is relatively impure, vapor flow rate is large, and compressor power is small; 3) in case P2, multiple steady-states appear when the bottom product is highly pure; and 4) multiple steady-states appear in a wider range of operation in case P2 than in case P1. |
Rights: | Copyright © 2007 The Society of Chemical Engineers, Japan This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 |
URI: | http://hdl.handle.net/2433/85264 |
DOI(Published Version): | 10.1252/jcej.06WE278 |
Appears in Collections: | Journal Articles |

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