Monitoring a progressing transesterification reaction by fiber-optic near infrared spectroscopy with correlation to 1H nuclear magnetic resonance spectroscopy

被引:255
作者
Knothe, G [1 ]
机构
[1] USDA ARS, Natl Ctr Agr Utilizat Res, Peoria, IL 61604 USA
关键词
biodiesel; fiber-optic probe; fuel quality; near infrared spectroscopy; nuclear magnetic resonance; soybean oil; transesterification; vegetable oils;
D O I
10.1007/s11746-000-0078-5
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Biodiesel is a promising alternative diesel fuel obtained from vegetable oils, animal fats, or waste oils by transesterifying the oil or fat with an alcohol such as methanol. In an extension of previous work, fiber-optic near infrared spectroscopy was used to quantitatively monitor the transesterification reaction (6-L scale) of a vegetable oil (soybean oil) to methyl soyate. The results were correlated with H-1 nuclear magnetic resonance spectroscopy. The method described here can be applied to the transesterification of other vegetable oils.
引用
收藏
页码:489 / 493
页数:5
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