Abstract:
Industrial development in Indonesia has increased very rapidly from year to year,
especially in the chemical industry. One of them is Glycerol Monostearate, an organic
compound that is widely used in the food, cosmetic, and pharmaceutical industries, especially
in the bakery industry, Glycerol Monostearate is used as an emulsifier to maintain emulsion
stability and reduce surface tension so that the texture of food is getting better. Glycerol
Monostearate consumption in Indonesia is projected to reach 13,470 tons by 2027. This can
be an opportunity to establish a Glycerol Monostearate plant to reduce imports and increase
foreign exchange by increasing exports. The Glycerol Monostearate plant is designed with a
capacity of 15,000 tons per year. The raw materials used to produce Glycerol Monostearate
are Glycerol and Stearic Acid with Sodium Hydroxide catalyst. This plant will be established
in Jalan Raya Manyar KM 11 Manyarejo, Manyar Sido Rukun, Manyar, Gresik, Jawa Timur
which is operated continuously. The production process of Glycerol Monostearate in this plant
has two main stages, namely reaction and purification. In the Esterification Reactor (CSTR)
there will be an esterification reaction at a temperature of 250
o
C and a pressure of 3.4 atm
with isothermal operating conditions to form Glycerol Monostearate. For the purification
stage, Glycerol Monostearate is separated from Glycerol, Stearic Acid and Sodium Hydroxide
as by-products using a 2-stage crystallization method at 125
o
o
C and 90
C with a pressure of 1
atm until the purity of Glycerol Monostearate is 91.8% and stored in the product holding tank.
The Glycerol Monostearate plant requires utility units including water, electricity, and diesel
fuel. Water needs come from JIIPE Area water as much as 19.107 liter/hour for start-up needs
and 960 liter/hour for continuous needs. Electricity needs come from PLN reaching 161 kWh.
Diesel fuel needs come from PT Pertamina amounting to 50 liters/hour. The legal form of this company is a Limited Liability Company (PT) with the organizational structure used is a line
and staff system. The company is led by a director with 164 employees. Employees consist of
shift employees and non-shift employees who work according to working hours. The factory
operates for 330 days a year. Based on the results of the economic analysis carried out with a
bank interest rate of 10%, it is as follows :
a. Total Capital Investment
= IDR 337.000.000.000
b. Own Capital (74,80%)
= IDR 252.000.000.000
c. Bank Loans (25,20%)
= IDR 85.000.000.000
Interest Rate
= 10%
Loan Period
= 5 years
d. Break Even Point (BEP) first year = 56%
e. Minimum Payback Period (MPP)
= 5 years
f. Internal Rate of Return (IRR)
= 28,11 %
g. Net Cash Flow at Present Value
= IDR 420.000.000.000
Based on the results of the economic analysis carried out, it can be concluded that this
propylene glycol plant is feasible to be established.
