Synthesis and Characterization of Bio-Glycerol from Cameroon Palm Kernel Seed Oil
Synthesis and Characterization of Bio-Glycerol from Cameroon Palm Kernel Seed Oil作者机构：Department of Applied Chemistry National School of Agro-Industrial Sciences (ENSAI) University of Ngaoundéré Ngaoundéré Cameroon Department of Inorganic Chemistry University of Yaoundé I Yaoundé Cameroon
出 版 物：《Green and Sustainable Chemistry》 (绿色与可持续化学（英文）)
年 卷 期：2022年第12卷第2期
页 面：28-40页
学科分类：08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
主 题：Palm Kernel Seed Oil Transesterification Biodiesel Bio-Glycerol Physico-Chemical Characterization Viscosity GC-MS Flash Point
摘 要：Bio-glycerol was synthesized from Cameroon palm kernel oil (PKO) through the transesterification procedure. Palm kernel oil extracted from palm kernel seeds using mechanical expression and solvent extraction was purified and characterized by physico-chemical methods and used in the transesterification process to give biodiesel and bio-glycerol. The biodiesel was purified and characterized as reported in previous articles. Our focus in this article is on glycerol, an important by-product of the transesterification process which has potential pharmaceutical, cosmetic and engineering applications. The bio-glycerol was purified by acidification and the purified glycerol was subjected to physical and chemical characterization. The specific gravity of glycerol was obtained as 1.2 kg/L, viscosity at 40°C gave 1500 cSt and 500 cSt at 100pH was 7.4;the flash point was 160°C, and the ASTM color was 2.0 before purification and zero after purification. The sulfur content was 0.016%w/v. This sulfur content is low thus posing no environment threat. The chemical composition of the synthesized bio-glycerol determined using IR spectroscopy and gas chromatography-mass spectrometry (GC-MS) confirmed the known chemical structure of glycerol. The purification and analysis of bio-glycerol is important as it can find applications in the pharmaceutical, cosmetic and food industries inter alia.
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