EFFECT OF STORAGE ON QUALITY OF BIODIESEL FROM Pongamia pinnata (L.) PIERRE
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Date
2013-09-24
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University of Agricultural Sciences GKVK, Bangalore
Abstract
A study was conducted to characterise quality of fresh biodiesel
produced from Pongamia pinnata (L.) Pierre and effect of storage on quality
of biodiesel blends (B0, to B100) in mild steel and HDPE container in open
and closed condition upto 180 days. The quality parameters of biodiesel
were Acid value (1.90 mg KOH/g), peroxide value (18.11 meq O2/kg),
iodine value (93.46 gI2/100g), sediments (0.1%), metal ion (0.56 ppm),
viscosity (6.00 mm2/s), density (0.88 g/cm3), calorific values (38661.45
KJ/kg) fresh biodiesel were found to be in the range.
The study revealed that most of the quality parameters of biodiesel
varied with storage period. This may be due to the formation of acids,
peroxides and aldehydes during storage. The storage period had effect on
quality parameters varying marginally up to100 days as compared to
control in case of open and closed HDPE containers. While in metal
containers both open and closed conditions values differed significantly
from 60th day on wards. The blends of biodiesel B0, B5, B10, B20, were
very much within the admissible range for use as fuel in all the cases
while B50 and B100 showed significant variation in the quality
parameters. Hence, the closed HDPE containers were found to be ideal for
storage up to 100th day with blends from B0 to B20. While in the metal
containers both open and closed conditions showed significant variation in
most of the parameters and the admissible range was for 40-60 days in
blends up to B20.
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Keywords
fertilizers, crops, nutrients, yields, grain, wheats, nitrogen, organic fertilizers, millets, crop residues