Environmental and life cycle cost assessment of cassava ethanol
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Author list: Gheewala S.H., Bonnet S., Silalertruksa T.
Publisher: Hindawi
Publication year: 2016
Start page: 177
End page: 193
Number of pages: 17
ISBN: 9781466589681; 9781466589674
eISSN: 1745-4557
Languages: English-Great Britain (EN-GB)
Abstract
Biofuels have been extensively promoted by many countries worldwide as a means to contribute to improved national energy security via reduced dependency on imported fossil fuels. They are also widely perceived as "green fuels" providing environmental benefits that are particularly emphasized for climate change mitigation through reduced greenhouse gas (GHG) emissions. However, the rapid increase in the production and use of ethanol and biodiesel over the last decade has been accompanied with rising concerns over the environmental benefits and cost competitiveness they may offer. In this chapter the case of cassava ethanol is taken as an example to address such concerns with a particular focus on Thailand where biofuels have been actively promoted over the last 15 years. To maintain the GHG performance and cost competitiveness of cassava ethanol as compared to its fossil equivalent gasoline, careful considerations are required over a range of parameters including, but not limited to, agricultural intensification of cassava production, land use expansion/land use change, enhanced productivity and co-products utilization, etc. Life-cycle greenhouse gas emissions and life-cycle costing studies have been conducted to evaluate the influence of these parameters and help maintain the benefits from biofuels. ฉ 2014 by Taylor & Francis Group, LLC.
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