The methods of biofuel generation by using microalgae: A review

Biofuels researchers extended to fit the growing fuel requirements and protected regional energy. Because of renewable and no impact on carbon biomass is preferred to replace fossil fuels. 2nd generation biofuels generated from micro-algae and lignocellulosic biomass (3rd generation biofuels) have become an essential raw material for the generation of renewable biofuels. Microalgae are rapidly multiplying microorganisms seen in the water, are the essential raw material for bio-fuel generation for the features like huge growth ratio, yield per area, potency in CO2 capture, and solar energy transformation. Photobioreactors on marginal lands, ponds, and seawater is the best growing area for algae, industries also cultivate the algae. Many methods have been used for the generation of biofuels from algae includes anaerobic digestion, hydrothermal liquefication, supercritical water gasification, and pyrolysis. This review article in brief explains the process of biofuel generation by using microalgae.