Constantly the biodiesel industry is looking for some alternative to produce renewable energy. Biodiesel prepared from canola, sunflower and jatropha can replace or be combined with traditional diesel. During first half of 2000′s jatropha biofuel made the headlines as a very well loved and promising alternative. It is prepared from jatropha curcas, a plant species native to Central America that can be grown on harsh environment.
Jatropha Curcas is a non not poisonous plant that grows in the arid regions. The plant grows very quickly and it can yield seeds for about 50 years. The oil got from its seeds can be used as a biofuel. This can be mixed with petroleum diesel. Earlier it has been used twice with algae combination to fuel test flight of commercial airlines.
A further positive approach of jatorpha seeds is that they have 37% oil content and they can be burned as a fuel lacking refining them. It is also used for medical purpose. Supporters of jatropha biodiesel say that the flames of jatropha oil are smoke free and they are successfully veteran for simple diesel engines.
Jatropha biodiesel as Renewable Energy Investment has attracted the interest of many companies, which have veteran it for automotive use. Jatropha biodiesel has been road veteran by Mercedes and three of the cars have covered 18,600 miles by using the jatropha plant biodiesel.
Since it is because of some drawbacks, the jatropha biodiesel have not considered as a fantastic renewable energy. The largest problem is that no one knows that what exactly the productivity rate of the plant is. Secondly they don’t know how large scale cultivation may affect the soil quality and the environment as a whole. The jatropha plant wants five times more water per energy than corn and sugarcane. This raises a further issue. On the other hand it is to be noted that jatropha can grow on tropical climates with annual rainfall of about 1000 to 1500 mm. A thing to be noted is that jatropha wants proper irrigation in the first year of its farm which lasts for decades.
Recent survey says that it is right that jatropha can grow on degraded land with small water and poor nutrition. But there is no evidence for the yield to be high. This may be proportional to the quality of the soil. In such a case it may require high quality of land and may require the same quagmire that is faced by most biofuel types.
Jatropha has one main downside. The seeds and leaves of jatropha are toxic to humans and livestock. This made the Australian government to ban the plant in 2006. The government declared the plant as invasive species, and too risky for western Australian farming and the environment here (DAFWQ 2006).
While jatropha has stimulating budding, there are number of research challenges remain. The importance of detoxification has to be studied because of the toxicity of the plant. Along side a systematic study of the oil yield have to be undertaken, this is very vital because of high yield of jatropha would probably looked-for before jatropha can be contributed much to the world. Lastly it is also very vital to study about the jatropha species that can survive in more temperature climate, as jatropha is very much limited in the tropical climates.
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