India imported about 36.5x106of its diesel requirement in the year 2003 and demand for diesel is also increasing every year. Biodiesel is the only fuel to meet out increasing diesel demands. So even mixing of 20 per cent with diesel fuel by biodiesel can help India save 7.3 x 106 tonnes of diesel per year. In India, about more than 14 million hectares land is cultural wasteland while more than 24 million hectare land is fallow land . The use of non edible oils compared to edible oils is very significant because of the increase in demand for edible oils as food and they are too expensive as compared with diesel fuel. Among the various non edible oil sources, Jatropha curcas oil has added advantages like pleasant smell, odorless and light yellowish colorless and easily mixed with diesel fuel. Jatropha curcas oil cannot be used for food or feed because of its strong purgative effect. The Jatropha plant having advantages namely effectively yields oilseeds from the 3rd year onwards, rapid growth, easy propagation, life span of 40 years and suitable for tropical and subtropical countries like India.
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