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- In relation to this article, we declare that there is no conflict of interest.
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Received February 2, 2014
Accepted April 8, 2014
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
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Does lower energy usage mean lower carbon dioxide emissions?- A new perspective on the distillation process
School of Chemical Engineering, Yeungnam University, Gyeongsan 712-749, Korea
Korean Journal of Chemical Engineering, July 2014, 31(7), 1110-1114(5), 10.1007/s11814-014-0105-4
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Abstract
Although fossil fuels play an important role as the primary energy source that currently cannot be replaced easily with other energy sources, their depletion and environmental impact are becoming major concerns. Improvements in energy efficiency are believed to solve both problems simultaneously. We examined the relationships between the improvement in energy efficiency, energy usage and CO2 emissions in industry, especially in the distillation process._x000D_
The energy efficiency improvement of dimethyl ether (DME) purification performed with dividing-wall column distillation (DWC) and acetic acid recovery performed with mechanical vapor recompression (MVR) were evaluated by recalculating the amount of fuel burnt and its CO2 emission. The results showed that the paradigm of lower energy being directly proportional to lower CO2 emissions is not entirely correct. To avoid this confusion, a tool for examining_x000D_
the uncommon behavior of various systems was developed.
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Fonyo Z, Benko N, Chem. Eng. Res. Des., 76(3), 348 (1998)
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Kurum S, Fonyo Z, Appl. Therm. Eng., 16, 487 (1996)
