Preliminary Design Of Melamine Plant Using Basf Process With Capacity Of 30,000 Tons/Year

Lehni, Usman and , Tri Widayatno,S.T., MS.c., Ph.D. (2018) Preliminary Design Of Melamine Plant Using Basf Process With Capacity Of 30,000 Tons/Year. UNSPECIFIED thesis, Universitas Muhammadiyah Surakarta.


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Preliminary Design of Melamine Plant Using BASF Process with Capacity of 30,000 Ton/Years is expected to be operated for 330 days per year to meet demand of melamine domestic and abroad. This plant is planned to set up in the industrial area KujangCikampek, West Java. Reaction formation of melamine from urea via a two stage reaction, the first stage of decomposition of urea into isocyanate acid and ammonia,in the second stage isocyanate acid turns into a melamine and carbon dioxide. This process uses a catalyst of alumina (Al2O30. The reaction is endothermic which takes place in fluidized bed reactor with a temperature of 395 ℃ and a pressure of 3 atm, non-adiabatic, non-isothermal, gas-solid phase, irreversible, heating in the form of molten salt. Conversions for this reaction is 95% with a yield of 93%. The product obtained is crystalline solid melamine. The main tools used are: melter, storage tank, scrubber, fluidized bed reactor, cyclone separator and crystallizer. Urea requirement for this plant as much as 13,561.55 kg/h. The product is melamine as much as 7,410.40 kg/h. the utility units involves saturated steam supply unit as much as 1771.277 kg/h obtained from the boiler with diesel fuel, compressed air as much as 100 m^3/h, the supply of water is as much as 1280.18 m^3/day taken from Parungkadali, dam and river Cikao, the demand for electricity is obtained from the PLN and two sets of 486.18 kW generator as a backup, with fuel as much as 1699.312 liters/h. the company is Perseroan Terbatas with a system of line and staff organization. Employee working in accordance with the division of labor and the work of each and divided into employee shift and non-shift. The Fixed Capital Investment, which is used to establish a factory is Rp 285,479,273,986.62 with Working Capital Rp 155,816,597,194.14. The required production cost is Rp 582,855,786,634.71. Economic analysis shows that the profit after tax (Profit on Sales After Tax)is 10.98%. Return on Investment (ROI) after taxes is as much as 26.60%. Pay out Time (POT) is 2.89 years. Break Even Point (BEP) in value of 45.59% while the production capacity of the Shut Down Point (SDP) in the value of 29.84%. Discounted Cash Flow of the design is 42.96%.

Item Type: Karya ilmiah (UNSPECIFIED)
Uncontrolled Keywords: melamine plant, melamine crystal
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Teknik > Teknik Kimia
Depositing User: USMAN LEHNI
Date Deposited: 10 Feb 2018 09:03
Last Modified: 10 Feb 2018 09:03

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