| dc.description.abstract | Palm Empty Fruit Bunches (TKKS) is a waste which has a fairly high content of
lignocelluloses. Meanwhile, TKKS has not been utilized optimally. With a
cellulose content of 45%-50%, TKKS then potentially be used as raw material for
bioethanol. In the process of bioethanol production from TKKS, delignification of
lignocellulose the first stage to dissolving ligament between cellulose,
hemicellulose and lignin. In this research, delignification process was carried out
using NaOH in the ionic liquid system and without ionic liquids. The purpose of
this research was to find out the highest content of cellulose which contained in
the TKKS. Delignification process were performed using ionic liquids choline
chloride (ChCl) in variety of heating time with amount of different ChCl. This
research used TKKS powder heated at a temperature 130 °C with a variety of
heating time 30, 60, and 90 minutes and the variation addition of ChCl at10%,
15% and 20% weight of TKKS. Delignification research results used ChCl
obtained highest content of cellulose is 40,33%, containing hemicellulose 20,28%,
and lignin 3,62% in heating treatment 90 minutes and the addition of 15% ChCl.
While delignification without ChCl obtained highest content of cellulose is
24,98%, containing hemicellulose 8,25%, and lignin 18,99% in heating treatment
90 minutes. Delignification process using ionic liquids ChCl can improve the
degree of delignification is 61,45%. | en_US |
