Laporan Tugas Prarancangan Pabrik Allil Khlorid dari Propilen dan Gas Khlor Kapasitas 50.000 Ton/Tahun
PRASETYO PUTRA MAHARDIKA, Ir. Wahyu Hasokowati,M. A. Sc.
2016 | Skripsi | S1 TEKNIK KIMIAAllil khlorid dibuat dengan cara khlorinasi gas propilen. Reaksi ini dijalankan pada multi tubular reactor yang dilengkapi dengan pendingin Dowtherm-A. Pabrik dirancang beroperasi dengan kapasitas 50.000 ton/tahun, dengan kebutuhan propilen sebanyak 3887,37 kg/jam dan khlor sebanyak 7046,75 kg/jam. Kebutuhan utilitas meliputi air sebanyak 8718,16 kg/jam, listrik 173,3755 kVA, bahan bakar berupa fuel oil sebanyak 1276,18 kg/jam dan udara tekan (STP) sebanyak 150 m3/jam. Pabrik ini direncanakan didirikan pada tahun 2020 di kawasan industri Krakatau Steel, Cilegon, Bantel. Luas tanah yang digunakan sebanyak 21,6 Ha. Pabrik bekerja secara kontinu selama 24 jam per hari selama 330 hari per tahun dengan jumlah karyawan 216 orang. Kebutuhan modal tetap, FCI sebesar US$ 10,054,842.80 + Rp 61.680.933.574,72 dan modal kerja sebesar US$ 11,315,527.14 + Rp 249.567.773.058,57. ROI sebelum pajak sebesar Rp 111.639.187.524,13 dan setelah pajak Rp 55.819.593.762,06. ROI sebelum pajak 52,54% dan setelah pajak 26,27%. POT (Pay Out Time) sebelum pajak 1,6 tahun dan setelah pajak 2,76 tahun. BEP (Break Even Point) sebesar 43,10% dari kapasitas maksimum produksi sedangkan SDP (Shut Down Point) sebesar 29,41%. Dengan pertimbangan sifat bahan baku dan produk, kondisi operasi, adanya konsumen yang membutuhkan, dan sudah berdirinya pabrik sejenis di dunia, maka pabrik ini digolongkan sebagai pabrik beresiko tinggi. Batasan yang berlaku adalah nilai BEP 40-60% untuk pabrik di Indonesia, ROI sebelum pajak minimum 44%, POT maksimum 2 tahun dan Discounted cash flow rate of return (DCFRR) yang 1,5x lebih tinggi dari suku bunga bank. Berdasarkan hasil analisa ekonomi dan batasan yang berlaku, maka dapat disimpulkan bahwa â€Prarancangan Pabrik Allil Khlorid dari Propilen dan Gas Khlor dengan kapasitas 50.000 ton per tahun†ini menarik untuk dikaji lebih lanjut.
Allil chloride is made by propylene chlorination mechanism. Reaction is run in multitubular reactor that has equipped with Dowtherm-A. The plant was designed to operate on capacity of 50,000 tons/year, propylene needs as much as 3887.37 kg / hour and chlor needs as much as 7046.75 kg / hour. Utilities needs include water as much as 8718,16 kg / hour, electricity as much as 173,3755 kVA, fuel oil as much as 1276.18 kg / hour and compressed air (STP) as much as 150 m3/hour. The planned factory was established in 2020 in the Krakatau Steel industrial area, Cilegon, Banten. Land used as many as 21,6 hectares. Plant work continuously for 24 hours per day for 330 days per year with 216 employers. Fixed Capital (FCI) requirement is US$ 10,054,842.80 + Rp 61.680.933.574,72 and working capital is US$ 11,315,527.14 + Rp 249.567.773.058,57. Profit before tax is Rp 111.639.187.524,13 and after tax of Rp 55.819.593.762,06. ROI before tax is 52,54% and after tax is 26,27%. POT (Pay Out Time) before tax is 1,6 year and after tax is 2,76 year. BEP (Break Even Point) is 43,10% from maximum production capacity whereas SDP (Shut Down Point) is 29,41%. With consideration of the characteristic of the raw materials and products, operating conditions, the consumers who need, and similar plants that already established in the world, so that this plant is classified as high-risk plant. Restriction that applies is the value of BEP is 40-60% for plants in Indonesia, minimum ROI before tax of 44%, two years maximum POT, and discounted cash flow rate of return (DCFRR) which is 1,5 times higher than bank interest rates. Based on the results of the economic analysis and constraints, it can be concluded that the â€Pre-draft Allil Khlorid Plant from Propylene and Chlorine with capacity of 50,000 tons per year†is interesting to study further.
Kata Kunci : Prarancangan, Allil Khlorid, Khlorinasi, Propilen, Gas Khlor
