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Biodiesel synthesis using natural solid catalyst derived from biomass waste — A review
Song Yuan Chua,Loshinie A/P Periasamy,Celine Ming Hui Goh,Yie Hua Tan,Nabisab Mujawar Mubarak,Jibrail Kansedo,Mohammad Khalid,Rashmi Walvekar,E.C. Abdullah 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.81 No.-
Biodiesel serves as an ideal candidate for alternative fuel as it is made from renewable source with lowerpollutant emission. However, current biodiesel production has several issues such as unrecoverablecatalyst, expensive separation stage and high wastewater generation due to the use of homogeneouscatalyst. Currently, there are several pathways to produce biodiesel without the problems stated abovesuch as supercritical condition transesterification and enzymatic catalyst. However, the economicfeasibility for both methods serve as a major hindrance due to extremely high pressure and pressure,expensive synthetic cost of enzyme, which lead to higher operation cost. At the present, heterogeneouscatalyst is the alternative, especially heterogeneous catalyst derived from natural resources such as wastebiomass are currently being extensively researched with promising results. Thus, this paper illustratesthe comprehensive research of biodiesel synthesis and assesses the latest breakthroughs involved in theuse of catalysts derived from waste biomass. Furthermore, an amalgam of experimental data obtainedfrom similar literature has been thoroughly reviewed to provide a better framework to produce biodiesel. Apart from that, this study aims to alleviate problems associated with heterogeneous catalyst separationand enhance the economic viability of the industry, thus, sustaining the environment while meetingenergy demands.