Pre-Treatment of High Free Fatty Acids Oils by Chemical Re-Esterification for Biodiesel Production—A Review  

作　　者：Godlisten G. Kombe Abraham K. Temu Hassan M. Rajabu Godwill D. Mrema Jibrail Kansedo Keat Teong Lee 

机构地区：[1]Department of Chemical and Mining Engineering, College of Engineering and Technology

出　　处：《Advances in Chemical Engineering and Science》2013年第4期242-247,共6页化学工程与科学期刊（英文）

摘　　要：Non edible oil sources have the potential to lower the cost of biodiesel. However, they usually contain significant high amounts of free fatty acids (FFA) that make them inadequate for direct base catalyzed transesterification reaction (where the FFA content should be lower than 3%). The present work reviews chemical re-esterification as a possible method for the pre-treatment of high FFA feedstock for biodiesel production. The effects of temperature, amount of glycerol, type and amount of catalyst have been discussed. Chemical re-esterification lowers FFA to acceptable levels for transesterification at the same time utilizing the glycerol by product from the same process. Further researches have been proposed as a way forward to improve the process kinetics and optimization so as to make it more economical.Non edible oil sources have the potential to lower the cost of biodiesel. However, they usually contain significant high amounts of free fatty acids (FFA) that make them inadequate for direct base catalyzed transesterification reaction (where the FFA content should be lower than 3%). The present work reviews chemical re-esterification as a possible method for the pre-treatment of high FFA feedstock for biodiesel production. The effects of temperature, amount of glycerol, type and amount of catalyst have been discussed. Chemical re-esterification lowers FFA to acceptable levels for transesterification at the same time utilizing the glycerol by product from the same process. Further researches have been proposed as a way forward to improve the process kinetics and optimization so as to make it more economical.

关 键 词：CHEMICAL Re-Esterification HIGH Free Fatty Acid GLYCEROLYSIS Biodiesel FEEDSTOCK 

分 类 号：O6[理学—化学]