PENGEMBANGAN ETANOL SEMI PADAT DENGAN PENCAMPURAN MINYAK JELANTAH
Abstract: The purpose of this
study was to obtain the concentration of sodium hydroxide (NaOH) and the
appropriate concetration of ethanol with a mixture of waste cooking oil to
formulate the semi-solid ethanol as an alternative for house hold fuel. The
research was carried out by using completely randomized design (CRD) with
factorial design. The first factor is the concentration of NaOH (12, 13, 14,
and 15%), and the second factor is the concentration of ethanol (85, 90, and
95%). Results of analysis of variance showed interaction of ethanol
concentration and the addition of NaOH concentration significanly affected the
degree of acidity (pH) and the calorific value. The addition of different
concentrations of ethanol, significantly affected on burning residue, calorific
value, and heat transfer. The addition of different concentrations of NaOH
significantly affected on viscosity, acidity (pH), burning residue, calorific
value and heat transfer. At the beginning of the burning, flame color changed
from blue to yellowish blue,, then to yellow flame before the flame
extinguished. The best formulation of semi-solid ethanol is treatment A2B3 whic
shows a viscosity of 19,500 cP, the calorific value of 22,519 J/g and 45.34%
combustion residues.
Penulis: Beny Setiawan, Fajar
Restuhadi, Faizah Hamzah
Kode Jurnal: jppertaniandd150410