Open AccessThe effect of active carbon adsorbents from some wastes in reducing free fatty acids and acid number to improve vco quality
Author(s) -
Dimas Frananta Simatupang,
Jenny Tarigan,
Mansyur
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/885/1/012011
Subject(s) - activated carbon , iodine value , chemistry , adsorption , fatty acid , nuclear chemistry , carbon fibers , organic chemistry , materials science , composite number , composite material
The use of several wastes such as durian outer skin, cassava outer skin and corncobs could be used to improve VCO quality. The wastes were converted into activated carbon as an adsorbent that was activated using sodium carbonate in purifying VCO in terms of reducing free fatty acid (FFA) and acid number. VCO used was oil that has made directly in the laboratory of oleo chemistry PTKI Medan and tested to reduce level of FFA and acid numbers. A total of 5 ml VCO samples were used to determine reducing in level of FFA and acid numbers by a titrimetric method with three times repetition using 0.1 N NaOH and previously treated with activated carbon adsorbent from durian outer skin, cassava outer skin and corncobs as much as 1 gr, 2 gr, and 3 gr. Based on the results of the examination, it was found that the level of FFA and acid number of VCO had a significant decrease with the best-activated carbon adsorbent using waste from cassava outer skin where level of FFA decreased by 0.16% and acid number decreased by 0.448.