Prospects for jatropha methyl ester (biodiesel) in India

Prospects for jatropha methyl ester (biodiesel) in India
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DOI:
10.1080/00207230701766499
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发表时间:
2007-12-01
影响因子:
--
通讯作者:
Ghosh, P. K.
Ghosh, P. K.
中科院分区:
其他
文献类型:
--
作者:
Ghosh, A.;Chaudhary, D. R.;Ghosh, P. K.

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麻风树甲酯(JME)在印度是一种潜在的生物柴油。尽管 LIS 首次展示了高质量 EN 14214 级生物柴油生产前沿麻风树,引起了全世界的兴趣激增,但大规模种植具有高种子生产力的植物对于整体成功至关重要。核心工艺在环境条件下进行,并通过与副产品回收结合消除废水排放。如果在可耕荒地采取适当的农艺措施,每公顷 2 吨(公吨 = 公吨 = 1000 公斤)麻风树种子的目标是现实的。即便如此,生物柴油只能满足柴油总需求的一小部分。除了生物柴油外,麻风树种植还可以通过使用油饼来促进有机农业产生相当大的影响。该壳的热值与煤相当,可制成煤球并用于固体燃料锅炉和其他应用,作为化石燃料的替代品。其他副产品也有有用的应用。迄今为止,大规模麻风树种植对环境的总体影响尚未得到研究。虽然荒漠化进程将得到遏制,温室气体排放量将减少,大气中的氧气含量将增加,但对生物多样性仍存在潜在威胁。如果此类活动仅限于荒地,这种威胁可能会减轻。还需要仔细评估植物毒性和产品/副产品毒性(如果有)的长期影响。
Jatropha Methyl Ester (JME) is a potential biodiesel in India. Although high quality EN 14214 grade biodiesel production front Jatropha curcas has been demonstrated by LIS for the first time, leading to a surge of interest worldwide, large-scale cultivation of the plant with high seed productivity is critical to overall success. The core processes are carried out under ambient conditions and effluent discharge is eliminated through integration with by-product recovery. A target of 2 tonnes (tonne = metric ton = 1000 kg) per hectare of jatropha seeds is realistic with proper agronomic practices in cultivable wastelands. Even so, only a small fraction of total diesel requirement can be met through biodiesel. Besides biodiesel,jatropha cultivation can make a considerable impact in promoting organic farming through use of the oil cake. The shell, having a calorific value equivalent to coal, can be made into briquettes and used in solid fuel fired boilers and other applications as a substitute for fossil fuel. Other by-products too find useful applications. The overall environmental impact of large-scale jatropha cultivation is so far not studied. Although the desertification process would be arrested, greenhouse emissions wool(] be reduced and the atmosphere enriched in oxygen, there is a potential threat to biodiversity. This may be mitigated if such activities are confined to wasteland. Long term impact of toxicity of the plant and toxicity, if any, of products/by products also need to be carefully assessed.