Preliminary Design Of Chemical Plant The Production Of Linear Alkylbenzene From 1-Dodecene And Benzene With Capacity 20,000 Tons Per Year

KAEWSAREH, Mr.Mollakarn and , Dr. Achmad M. Fuadi, M.T. and , M. Mujiburohman, S.T., M.T., Ph.D. (2015) Preliminary Design Of Chemical Plant The Production Of Linear Alkylbenzene From 1-Dodecene And Benzene With Capacity 20,000 Tons Per Year. Diploma thesis, Universitas Muhammadiyah Surakarta.

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Abstract

Linear alkyl benzene industry produces linear alkyl benzene from raw material of 1-dodecene and benzene with production capacity 20,000 tons per year. The industry is planned to be established at industrial estate in Cilegon, Banten, East Jawa with land area of 10000 m2. The production process of linear alkyl benzene is Detal process by using fixed bed reactor with solid acid catalyst. The reaction condition is liquid-liquid phase at 80-193˚C temperature, 5 atm pressure and mol ratio benzene to 1-dodecene is 2:1, the reaction is irreversible and exothermal. All of materials do not cause any corrosive. Considering by the reaction conditions the linear alkyl benzene industry is low risk chemical industry. The linear alkyl benzene production produces 2,560 kilograms product per hour. The raw materials needed are benzene 1,568 kilogram per hour and 1- dodecene 1,689 kilograms per hour. To support the process, the linear alkyl benzene production requires cooling water 39,709 kilograms per hour and steam 725 kilograms per hour, the water is obtained from seawater. The linear alkyl benzene production requires fuel oil to generate steam and the diesel fuel uses 166 liters per day. The electricity required for all purposes in the industry is 743 kilowatt which is obtained from the state electricity company (PLN). Incase the electricity is runs out, the electric generator is prepared for 4 days per month with diesel fuel requirement 75 liters per hour. The linear alkyl benzene is considered to operate for 330 days per year with 161 employees. The economic analysis result are as follows, the profit before tax is IDR 35,872,735,199.40 per year and the profit after tax 30% is IDR 25,110,914,639.58 per year. The return of investment before tax if 49.89% and the return of investment after tax is 34.92% .The standard return of investment before tax is between 40% to 60%. The payout time before tax is 1.670 years while the payout time after tax is 2.226 years, payout time before tax is allowable for maximum 5 years with breakeven point is 48.20% while breakeven point is expected between 40% -60% for standard chemical industry. Discounted cash flow is 43.86%. Discount cash flow is allowable when it’s more than 15% (bank credit interest). From the economic anlysis results above it can be concluded that the establishment of the linear alkyl benzene industry is feasible.

Item Type:	Karya ilmiah (Diploma)
Uncontrolled Keywords:	Linear alkyl benzene , 1-dodecene , benzene , fixed bed reactor.
Subjects:	T Technology > TP Chemical technology
Divisions:	Fakultas Teknik > Teknik Kimia
Depositing User:	Cahyana K. Widada
Date Deposited:	25 Nov 2015 04:54
Last Modified:	25 Jul 2016 06:49
URI:	http://eprints.ums.ac.id/id/eprint/39597

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