Abstract
A large number of papers and patents have been published and filed during the last few years on new technologies for the production of biodiesel from various feedstocks. This chapter aims to give an overview of latest developments in the field of new catalysts like the use of heterogeneous catalysts or the use of lipases, alternative reaction conditions like supercritical treatment, microwave or ultrasound application, or the use of alternative reactor designs like oscillatory or micro-channel reactors. Also new technologies for separation of reaction mixtures, like the use of membranes or simultaneous derivatization of glycerol during the reaction are described. The advantages and disadvantages of individual alternative approaches are discussed and compared with traditional biodiesel production using mainly homogeneous alkaline catalysis.
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