Full chain energy analysis of biodiesel from jatropha curcas L in Thailand
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Author list: Prueksakorn K., Gheewala S.H.
Publisher: American Chemical Society
Publication year: 2008
Journal: Environmental Science and Technology (0013-936X)
Volume number: 42
Issue number: 9
Start page: 3388
End page: 3393
Number of pages: 6
ISSN: 0013-936X
eISSN: 1520-5851
Languages: English-Great Britain (EN-GB)
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Abstract
Biodiesel production from Jatropha curcas Linnaeus (JCL) has been considered for partial substitution of diesel fuel for transportation in Thailand. The aim of this study is to investigate the energy consumption for long-term investment (20 years) of Jatropha Methyl Ester (JME) production in Thailand sing a life cycle approach. Apart from the average result, two scenarios-best and worst case-are set up to illustrate the range of results due to the variety of management practices. The main contributors to the energy use are JCL cultivation, transesterification, and transportation process. The net energy gain (NEG) and net energy ratio (NER) of biodiesel and coproducts from the life cycle of JCL are 4720 GJ/ha and 6.03, respectively. Even if only biodiesel is considered without coproducts, the NER is 1.42, still higher than 1. The study will support decision makers in the energy policy sector to make informed decisions vis-a-vis promotion of JCL plantations for biodiesel. ฉ 2008 American Chemical Society.
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