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The effect of steam treating waste cooking oil on the yield of methyl ester
Author(s) -
Supple B.,
HowardHildige R.,
GonzalezGomez Esther,
Leahy J. J.
Publication year - 2002
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/s11746-002-0454-1
Subject(s) - iodine value , yield (engineering) , raw material , moisture , biodiesel , pulp and paper industry , chemistry , steam injection , acid value , sedimentation , waste management , food science , organic chemistry , materials science , metallurgy , biochemistry , engineering , catalysis , paleontology , sediment , biology
The effect of steam injection and sedimentation treatment of waste cooking oil on the quality of TG, to be used as a raw material for the production of biodiesel, was investigated. The effect of steam treatment was evaluated in terms of a number of physical and chemical characteristics. Significant decreases in the moisture, FFA, and PV, as well as increased energy value, were observed. GC analysis of the treated materials demonstrated little change in either the overall composition of the oils or the iodine value. The decreases in moisture from 1.4 to 0.4% and in FFA from 6.27 to 4.28% were found to correlate strongly with an increase in yield of ester from 67.5 to 83.5%.