| Summary: | The title of the thesis is "The Utilization of Coal Residue to Produce Briquette
from a Mixture of Resin Torch for Adhesive (A case study at Panau Electric Steam
Power Plant (PLTU) in North Palu District, Palu
Panau Electric Steam Power Plant (PLTU) is one source of electricity in the city of Palu. The coal fuel of Panau PLTU comes from Kalimantan that is transported by using pontoon and towed by a boat. When unloading the coal at the port of Panau PLTU,
a number of coal lumps scattered around the port. The writer assumed the coal scattered is the remnant that still can be used as raw material for briquette production.
The purpose of this research is to produce coal briquette with other additives and
use resin torch as the adhesive. In addition, this study is expected to increase the
awareness of the community arpind the research site to use the remaining coal to
produce briquette.
The research applied two methods. They are field and laboratory research. To
carry out this research, the required materials consist of unused remaining coal from
Panau PLTU, resin torch which is the yield of secretion (sap) from the Resin Torch tree
of Meranti sp, and rice husk which is the output of rice milling process that is not used.
Resin torch is used as adhesive to replace clay and tapioca, while rice husk is used as the additive material.
Tests for compressive strength of coal briquette using the CBR tool Mechanical
Loading Press showed compressive strength values for the IIC formula is 57,42 kg, for
the IIB formula is 45,93 kg, and the comparative coal briquette which has been sold in
the market is 57,42 kg.
Tests for calorie of coal briquette using Bomb Calorimeter showed calorific
values for the IIB formula is 6331,989 cal/gram, for the IIC formula is 6186,829
cal/gram, and the comparative coal briquette is 5862,095 cal/gram.
Tests for initial ignition without the use of kerosene showed the mixture of resin
torch, coal briquette and rice husk is flammable than the comparative briquette.
Smell generated during initial burning, the coal briquette of IIB formula and IIC
formula were dominant resin. The comparative briquette were smelt sulphur.
Smoke generated during the initial combustion of coal briquette was black for
IIB formula, IIC formula and comparative briquette.
In the burning experiment of coal briquette for IIB formula, IIC formula, and
comparative briquette showed that coal briquette for IIB and IIC formula were
completely burned and ash as the remaining combustion. However, the comparative
briquette did not show complete combustion, leaving ash, clay, and unburned briquette
From the test, briquette with the above mixture are eligible for energy producer
of fuel for households.
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