Biodiesel fuel from animal fat. Ancillary studies on transesterification of beef tallow

被引：133

作者：

Ma, FR ^{[1
]}

Clements, LD ^{[1
]}

Hanna, MA ^{[1
]}

机构：

[1] Univ Nebraska, Ind Agr Prod Ctr, Lincoln, NE 68583 USA

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 1998年 / 37卷 / 09期

关键词：

D O I：

10.1021/ie980162s

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Transesterification of beef tallow was investigated. The solubility of ethanol in beef tallow was much higher than that of methanol. At 100 degrees C the solubility of methanol was 19% (w/w). The solubility of ethanol in beef tallow reached 100% (w/w) at about 68 degrees C. For the distribution of methanol between beef tallow methyl esters (BTME) and glycerol, the percentage of total methanol in the glycerol phase was higher than that in the fatty acid methyl ester (FAME) phase in a simulated system at room temperature. At 65-80 degrees C, however, the percentage of total methanol in FAME (60% (w/w)) was higher than that in glycerol (40% (w/w)) in a 90:10 (w/w) blend of FAME and glycerol. This coincided with the methanol distribution in the transesterified product. The process for making beef tallow methyl esters should recover methanol using vacuum distillation, separate the ester and glycerol phases, and then wash the beef tallow methyl esters with warm water. At neutral pH, the separation of ester and glycerol and water washing was easier because it reduced emulsion formation.

引用

页码：3768 / 3771

页数：4

共 12 条

[1]

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