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RAW OIL OR FAT FOR PRODUCTION OF HIGHER FATTY ACID ALKYL ESTER, AND PROCESS FOR PRODUCTION OF HIGHER FATTY ACID ALKYL ESTER
RAW OIL OR FAT FOR PRODUCTION OF HIGHER FATTY ACID ALKYL ESTER, AND PROCESS FOR PRODUCTION OF HIGHER FATTY ACID ALKYL ESTER
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机译:用于生产高级脂肪酸烷基酯的原始油或脂肪,以及用于生产高级脂肪酸烷基酯的方法
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摘要
Disclosed is a process for producing a higher fatty acid alkyl ester by carrying out the transesterification of a glyceride of an oil or fat with a monovalent lower aliphatic alcohol for the purpose of producing a light oil alternative fuel that can be used as a fuel for a diesel engine or the like, wherein particularly a free fatty acid contained in the oil or fat can be removed effectively.The process is characterized in that, prior to the transesterification reaction of a raw oil or fat, the raw oil or fat is treated with a monovalent lower aliphatic alcohol using an alkali metal hydrogen sulfate as a catalyst to esterify a free fatty acid contained in the raw oil or fat and subsequently the raw oil or fat is subjected to the transesterification reaction.
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