PERANCANGAN PABRIK ASAM ASETILSALISILAT DARI ASAM SALISILAT DAN ASETAT ANHIDRAT DENGAN KAPASITAS 10.000 TON/TAHUN
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Date
2019-12-30Author
Getar Sabdayagra, 14521161
M Ridho Farizan, 14521263
Metadata
Show full item recordAbstract
An acetylsalicylic acid plant (Aspirin) with raw materials for salicylic acid
and anhydrous acetate is planned to be established in Mariana, Musi Banyuasin
Regency, South Sumatra with a capacity of 10,000 tons / year with a land area of
53,290 m
2
. The factory operates 330 days a year.
The process of making acetylsalicylic acid is continous stirred tank flow
reactor (CSTR). The reaction takes place in an irreversible, exothermic, liquidliquid
phase,
at
a
temperature
of
90
C and a pressure of 1 atm. Exothermic reaction
so that the heat is taken where the cooling coil is installed using a water cooling
medium. Salicylic acid requirements for this plant are 977,767 tons / year with a
purity of 99.5% and anhydrous acetate requirement of 726,347 tons / year with a
purity of 99%. The reaction product is separated by using a Centrifuge and Rotary
Drier to remove the liquid content in the product. The product yield is in the form of
acetylsalicylic acid (Aspirin) with 99.5% purity of 1262.6263 tons / year.
Supporting utilities include 45,194.20 kg / hr of cooling water obtained from
river water, 17,665.32 kg / hr of steam supplied, from the boiler with fuel oil of
11,343.47 kg / hr and electricity demand obtained from PLN and one generator
amounted to 202.94 KW, fuel as much as 22.1232 kg / hour or 530.947 kg / day.
This factory has a fixed capital investment value of Rp. 605,301,173,869 and USD
$ 43,235,798 Working Capital Rp. 1,521,946,806,505 and USD $ 108,710,486,
Manufacturing Cost Rp. 1,579,935,755,169 and USD $ 112,852,553 and General
Expense Rp. 379,804,590,445 and USD $ 27,128,899. Economic analysis shows
profit before tax Rp 237,839,654,386 / year after tax Rp 118,919,827,193 / year,
ROI value before tax of 39.29%, ROI value after tax of 19.65%, POT before tax of
2.1 years, POT after tax 3,6 years. The BEP value is 44.85% and the SDP is
29.42%. Discounted Cash Flow Rate (DCFR) of 10.67%. Based on these results it
can be concluded that the plant acetylsalicylic acid (Aspirin) from salicylic acid
and acetic anhydrous with a capacity of 10,000 tons / year is profitable and is worth
considering for establishment in Indonesia.
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- Chemical Engineering [1174]