Rapid quantitative analytical tool for characterizing the preparation of biodiesel.
A novel qualitative method has been developed for the determination of the various types of hydroxyl groups present in biodiesel production streams. The use of 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane as a phosphitylation reagent for quantitative (31)P NMR analysis of the hydroxyl groups in biodiesel process samples has been fully developed. This experimental protocol allows for rapid analysis of biodiesel mixtures of alcohols, fatty acids, glycerol, and mono- and disubstituted glycerides. Characteristic chemical shift ranges were developed with model compounds and used to fully characterize the conversion of triglyceride samples to biodiesel for two commercial production processes.
Institute of Paper Science and Technology, Georgia Institute of Technology, 500 10th St NW, Atlanta, Georgia 30332, USA.
Máté
M
Nagy
Marcus
M
Foston
Arthur J
AJ
Ragauskas
D056804:Biofuels; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D013997:Time Factors
D056804:Biofuels