State of the art and prospective of lipase-catalyzed transesterification reaction for biodiesel production. (1st June 2017)

• Record Type: Journal Article
• Authors: Amini, Zeynab; Ilham, Zul; Ong, Hwai Chyuan; Mazaheri, Hoora; Chen, Wei-Hsin
• Is Part Of: Energy conversion and management. Volume 141(2017)
• Page Start: 339
• Page End: 353
• Publication Date: 2017-06-01
• Subjects: Biodiesel -- Enzymatic transesterification -- Lipase immobilization -- Nanoparticles -- Whole cell and recombinant lipase -- Alternative fuel; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2016.09.049
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: Enzymatic transesterification process is less energy intensive and robust. Nano-materials are promising immobilization supports for lipase. Packed-bed reactors are appropriate for scale-up use. Potential recombinant, whole cell and recombinant whole cell lipases were enlisted. Genetic engineering is a promising prospect in biodiesel area. Abstract: The world demand for fuel as energy sources have arisen the need for generating alternatives such as biofuel. Biodiesel is a renewable fuel used particularly in diesel engines. Currently, biodiesel is mainly produced through transesterification reactions catalyzed by chemical catalysts, which produces higher fatty acid alkyl esters in shorter reaction time. Although extensive investigations on enzymatic transesterification by downstream processing were carried out, enzymatic transesterification has yet to be used in scale-up since commercial lipases are chiefly limited to the cost as well as long reaction time. While numerous lipases were studied and proven to have the high catalytic capacity, still enzymatic reaction requires more investigation. To fill this gap, finding optimal conditions for the reaction such as alcohol and oil choice, water content, reaction time and temperature through proper reaction modelling and simulations as well as the appropriate design and use of reactors for large scale production are crucial issues that need to be accurately addressed. Furthermore, lipase concentration, alternative lipase resources through whole cell technology and genetic engineering, recent immobilizing materials including nanoparticles, and the capacity of enzyme to be reused are important criteria to be neatly investigated. The present work reviews the current biodiesel feedstock, catalysis, general and novel immobilizing materials, bioreactors for enzymatic transesterification, potential lipase resources, intensification technics, and process modelling for enzymatic transesterification.