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Monitoring a progressing transesterification reaction by fiber‐optic near infrared spectroscopy with correlation to 1 H nuclear magnetic resonance spectroscopy
Author(s) -
Knothe Gerhard
Publication year - 2000
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-000-0078-5
Subject(s) - transesterification , biodiesel , spectroscopy , methanol , vegetable oil , infrared spectroscopy , infrared , diesel fuel , materials science , soybean oil , nuclear magnetic resonance spectroscopy , fiber , chemistry , nuclear magnetic resonance , analytical chemistry (journal) , organic chemistry , catalysis , food science , optics , physics , quantum mechanics
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 1 H nuclear magnetic resonance spectroscopy. The method described here can be applied to the transesterification of other vegetable oils.