Preliminary Plant Design Of Gypsum Using Limestone And Sulfuric Acid With Capacity Of 100,000 Tons/Year

Yangok, Lateefee and , Kusmiyati, S.T, M.T, Ph.D, (2017) Preliminary Plant Design Of Gypsum Using Limestone And Sulfuric Acid With Capacity Of 100,000 Tons/Year. Skripsi thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Gypsum or calcium sulfate dihydrate requirement in Indonesia is fulfilled with domestic production and imported from abroad. Domestic gypsum production is still not sufficient to meet the needs of gypsum in Indonesia. Therefore, imports from foreign countries are still needed. By establishing the gypsum industry in Indonesia, it is expected to meet the needs of gypsum in Indonesia Gypsum is production from the reaction between limestone (CaCO3) and sulfuric acid solution (H2SO4) 50% of weight in Continuous Stirred-Tank Reactor (CSTR) ) with the capacity of product 100,000 tons/year in the reactor at the operating conditions of temperature at 93 °C and pressure at 1 atm. Raw material for the plant required are limestone (CaCO3) 7,549 kg/hour and sulfuric acid solution (H2SO4) 6,898 kg/hour with the general reaction as follows like below : CaCO3 (s) + H2SO4 (l) + H2O (l)  CaSO4.2H2O (s) + CO2 (g) and the weight ratio between the limestone and sulfuric acid entering the reactor is 1:1 in kilograms. The residence time in the reactor was 10 minutes. Plant will be build at 2030 in the Indarung,Padang with area is 16,940 m2 .The result of calculate that Fixed Cost (Fa) is 41,797,168,267. Regulated Cos (Ra) is 505,053,337,480 Cost of raw material (Sa) is 1,358,239,263,511.Variable cost (Va) is 629,447,458,716.get the value of BEP is 51.52% (at range 40% - 60%) and get the value of SDP is 51.52% for POT after tax is 1.8 years (maksimmum 5 years). we get value of Internal Rate of Return (IRR) = 19,35% So if this plant will be build so many advantages and very profitably.

Item Type:	Karya ilmiah (Skripsi)
Uncontrolled Keywords:	Gypsum, calcium sulfate dihydrate, CaSO4.2H2O
Subjects:	T Technology > TP Chemical technology
Divisions:	Fakultas Teknik > Teknik Kimia
Depositing User:	Unnamed user with username d500112001
Date Deposited:	16 Oct 2017 03:05
Last Modified:	16 Oct 2017 03:05
URI:	http://eprints.ums.ac.id/id/eprint/56310

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