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Sustainability 2012, 4(1), 92-105; doi:10.3390/su4010092
Article

A Sustainable Ethanol Distillation System

* ,
 and
Faculty of Engineering and Applied Science, University of Ontario Institute of Technology, Oshawa, ON L1H 7K4, Canada
* Author to whom correspondence should be addressed.
Received: 2 November 2011 / Revised: 19 December 2011 / Accepted: 20 December 2011 / Published: 4 January 2012
(This article belongs to the Special Issue Sustainable Manufacturing)
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Abstract

The discarded fruit and vegetable waste from the consumer and retailer sectors provide a reliable source for ethanol production. In this paper, an ethanol distillation system has been developed to remove the water contents from the original wash that contains only around 15% of the ethanol. The system has an ethanol production capacity of over 100,000 liters per day. It includes an ethanol condenser, a wash pre-heater, a main exhaust heat exchanger as well as a fractionating column. One unique characteristic of this system is that it utilizes the waste heat rejected from a power plant to vaporize the ethanol, thus it saves a significant amount of energy and at the same time reduces the pollution to the environment.
Keywords: ethanol; heat exchanger; distillation; waste heat recovery; fruit and vegetable waste ethanol; heat exchanger; distillation; waste heat recovery; fruit and vegetable waste
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Yang, Y.; Boots, K.; Zhang, D. A Sustainable Ethanol Distillation System. Sustainability 2012, 4, 92-105.

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