Biofuels is the promising source of energy for future fuel requirements. Biodiesel can be developed from growing plants which naturally contains oil specifically jatropha curcas, palm oil, Soybean and algae. Bioethanol can be extracted from sugar crops like sugarcane, sugar beet, maize, corn and so on by yeast fermentation. Wood products can also be converted into Biofuels.

The obtained Biofuels from these items consists of both advantages and drawbacks.

Advantages of Biofuels:

Ecological Benefits: The main expectation of using the biofuel is to be carbon neutral, less of CO and Sulfur, as it is made from natural resources, and it is sustainable and pure fuels so it is excellent for automobiles. It minimizes the green home substantially compared to other fossil fuels.

First generation biofuels can conserve carbon emissions about 60% compared to nonrenewable fuel sources whereas the second generation biofuels are much better than first generation fuels. It provides carbon emission savings as much as 80%. Recently, UK Government publication stated that biofuels can lower emissions by 50-60%. Efficiency of the engine increases by utilizing biodiesel as the lubricant.

Economical: The biofuel's rate decreases substantially if the biofuel production technology spreads worldwide. The biofuels are developed in your area which immediately improves the rural advancement as the technology depends primarily on manual power. The quick boost of biofuel all at once increases the production of these oil crops which promotes the agricultural market. The UK government has actually revealed that it minimizes the taxation for automobiles which are environmentally friendly. Additionally, the durability of the engine increases while utilizing these combustible fuels in engines.

Renewability and Degradable: The biofuels are made from crops which are renewable and it is biodegradable and more secure to handle and less dangerous than nonrenewable fuel sources.

Disadvantages of Biofuels:

Environmental Alarm: Adapting more lands for planting crops for biofuel extraction will discarded more environments. More forests have been ruined in Asian nations for the plantation. The producing system of these biodiesel indeed requires nonrenewable fuel sources which produces more carbon emissions. High initial investment is required for the biodiesel production.

Odour: Certain biofuel crop produces heavy smell those odours are normally undesirable and biofuels plants can not be setup near the large communities.

Food and water Requirements: Some biofuel crops such as corn oil, palm oil are edible for cooking; the need for these crops for biofuels might raise the rate of these food crops. The huge quantity of water is needed for proper yield, even for dry spell resistant jatropha curcas plants.

Availability: The biofuels are not available in surplus so the diesel engines which are modified for biodiesel usage might face problems. The most cars are not geared up for utilizing biofuels in the engines. Some biodiesel can not resist frost; it gets frozen in the chillier locations. It also increases the risk of microbial growth in the engine. Only couple of gas stations use this biofuels and it is impossible to transport the biofuels utilizing pipelines.

Carbon emission: Biofuels are lowers the Jatropha greenhouse gases emission compared to other fossil fuels. Recently, the European scientist reported that the burning of biodiesel specifically corn and rapeseed produces more laughing gas.