As conventional fossil fuels are becoming limited, it is critical to find alternative clean and renewable energy sources. Biodiesel is a degradable and renewable form of fuel made up of long-chain fatty acid esters that can be generated from either plants or animals. It is a mixture of long-chain alkyl esters made through a transesterification reaction with alcohol and catalyst. Due to the high cost of petroleum, the concept of biofuel production as an alternative source has increased in recent years. The present mini-review summarizes some recent studies on alternative methods for the production of biofuel. The review concludes that biofuel production using magnetic nanocatalysts is one of the best alternative approaches. Magnetic nanocatalysts can easily be recovered from the reaction mixture by using a magnetic field. It reduces the reaction time and increases the yield.

Article History

Received: August 12, 2021; Accepted: Feb 12, 2022; Published: Dec 31, 2022

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