CUED Publications database

The environmental and economic sustainability of potential bioethanol from willow in the UK.

Stephenson, AL and Dupree, P and Scott, SA and Dennis, JS (2010) The environmental and economic sustainability of potential bioethanol from willow in the UK. Bioresour Technol, 101. pp. 9612-9623.

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Abstract

Life cycle assessment has been used to investigate the environmental and economic sustainability of a potential operation in the UK in which bioethanol is produced from the hydrolysis and subsequent fermentation of coppice willow. If the willow were grown on idle arable land in the UK, or, indeed, in Eastern Europe and imported as wood chips into the UK, it was found that savings of greenhouse gas emissions of 70-90%, when compared to fossil-derived gasoline on an energy basis, would be possible. The process would be energetically self-sufficient, as the co-products, e.g. lignin and unfermented sugars, could be used to produce the process heat and electricity, with surplus electricity being exported to the National Grid. Despite the environmental benefits, the economic viability is doubtful at present. However, the cost of production could be reduced significantly if the willow were altered by breeding to improve its suitability for hydrolysis and fermentation.

Item Type: Article
Uncontrolled Keywords: Agriculture Biofuels Conservation of Natural Resources Ethanol Fossils Great Britain Greenhouse Effect Salix
Subjects: UNSPECIFIED
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:20
Last Modified: 29 Oct 2014 19:00
DOI: 10.1016/j.biortech.2010.07.104