Open AccessBiodiesel characteristics of tuna fish bio-oil waste in the transesterification process with variation of reaction time and stirring speed
Author(s) -
I. Rosyadi,
Ni Ketut Caturwati,
Dhimas Satria,
Haryadi Haryadi,
Muzaky
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/909/1/012029
Subject(s) - transesterification , biodiesel , acid value , biodiesel production , methanol , raw material , tuna , pulp and paper industry , flash point , materials science , cooking oil , chemistry , organic chemistry , catalysis , fish <actinopterygii> , fishery , biochemistry , engineering , biology
Waste from fishery production from canned fish production in Indonesia is very abundant, this waste can be used as raw material for making biodiesel. In this research, the production of biodiesel from tuna oil waste is carried out through the transesterification process. The purpose of this study was to determine levels of Free Fatty Acid, the effect of reaction time and stirring speed on the transesterification process on the characteristics of biodiesel. Fixed variables used consisted of methanol plus bio-oil in a ratio (6: 1), methanol at a concentration of 98%, reaction temperature of 60 °C, KOH catalyst weighing 3.5 grams, while the independent variable consisted of the time of transesterification reaction and stirring speed. The variation of transesterification reaction time used is 1, 2, and 3 hours while the variation of the speed of stirring the transesterification reaction is 160, 245, and 360 rpm. The optimal conditions obtained were 2 hours reaction time and 360 rpm stirring speed with biodiesel characteristics, namely a density of 849 kg / m ^ 3, viscosity of 3.53 cSt, water content of 0.6%, calorific value of 9,390 cal / gr, flash point 84 ° C, and acid number 3.6343 mg KOH / gr.