Security of feedstocks supply for future bio-ethanol production in Thailand
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Author list: Silalertruksa T., Gheewala S.H.
Publisher: Elsevier
Publication year: 2010
Journal: Energy Policy (0301-4215)
Volume number: 38
Issue number: 11
Start page: 7476
End page: 7486
Number of pages: 11
ISSN: 0301-4215
Languages: English-Great Britain (EN-GB)
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Abstract
This study assesses the security of feedstock supply to satisfy the increased demand for bio-ethanol production based on the recent 15 years biofuels development plan and target (year 2008-2022) of the Thai government. Future bio-ethanol systems are modeled and the feedstock supply potentials analyzed based on three scenarios including low-, moderate- and high-yields improvement. The three scenarios are modeled and key dimensions including availability; diversity; and environmental acceptability of feedstocks supply in terms of GHG reduction are evaluated through indicators such as net feedstock balances, Shannon index and net life cycle GHG emissions. The results show that only the case of high yields improvement scenario can result in a reliable and sufficient supply of feedstocks to satisfy the long-term demands for bio-ethanol and other related industries. Cassava is identified as the critical feedstock and a reduction in cassava export is necessary. The study concludes that to enhance long-term security of feedstocks supply for sustainable bio-ethanol production in Thailand, increasing use of sugarcane juice as feedstock, improved yields of existing feedstocks and promoting production of bio-ethanol derived from agricultural residues are three key recommendations that need to be urgently implemented by the policy makers. ฉ 2010 Elsevier Ltd.
Keywords
Feedstocks security
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