Electronic Theses and Dissertation

Prarancangan pabrik isobutilena dari tert-butyl alcohol (tba) dengan kapasitas produksi 70.000 ton/tahun dan waktu operasi 330 hari/tahun. proses produksi menggunakan proses dehidrasi tba fase cair dengan katalis para-toluene sulfonic acid (ptsa) pada reaktor alir tangki berpengaduk (ratb). pabrik ini direncanakan dibangun di kawasan industri gresik, jawa timur, indonesia dengan luas area pabrik 23.370 m². bentuk perusahaan yang direncanakan adalah perseroan terbatas (pt) dengan menggunakan metode struktur organisasi garis dan staf serta tenaga kerja sebanyak 157 orang. kebutuhan air untuk pabrik berasal dari jiipe water treatment plant dengan total kebutuhan air bersih 14.899,20 kg/jam, dan untuk kebutuhan listrik diperoleh dari generator dengan daya 472,75 kw. hasil analisis ekonomi diperoleh sebagai berikut: 1. fixed capital investment (fci) = rp 1.011.275.056.430,- 2. working capital investment (wci) = rp 252.818.764.108,- 3. total capital investment (tci) = rp 1.264.093.820.538,- 4. total biaya produksi (tpc) = rp 1.764.400.509.961,- 5. hasil penjualan = rp 2.275.934.068.306,- 6. laba bersih = rp 383.650.168.759,- 7. pay out time (pot) = 4,87 tahun 8. break event point (bep) = 33,49 % 9. internal rate of return (irr) = 30,04 % 10. rate of return (ror) = 30,35 % berdasarkan studi kelayakan teknis dan ekonomis diatas, maka dapat disimpulkan bahwa prarancangan pabrik isobutilena ini layak untuk dilanjutkan ke tahap rancangan.

Preliminary Plant Design of Isobutylene from Tert-Butyl Alcohol (TBA) with a production capacity of 70,000 tons/year and an operating time of 330 days/year. The production process uses a liquid-phase TBA dehydration process with Para-Toluene Sulfonic Acid (PTSA) catalyst in a Continuous Stirred Tank Reactor (CSTR). This factory is planned to be built in the Gresik Industrial Estate, East Java, Indonesia, with a factory area of 23,370 m². The planned form of the company is a Limited Liability Company (PT) using a line and staff organizational structure and a workforce of 157 people. The water requirement for the factory comes from the JIIPE Water Treatment Plant with a total clean water requirement of 14,899.20 kg/hour, and the electricity requirement is obtained from a generator with a power of 472.75 kW. The results of the economic analysis are obtained as follows: 1. Fixed Capital Investment (FCI) = Rp 1,011,275,056.430,- 2. Working Capital Investment (WCI) = Rp 252,818,764,108,- 3. Total Capital Investment (TCI) = Rp 1,264,093,820,538,- 4. Total Production Cost TPC) = Rp 1.776.006.176.627,- 5. Total Reveneu (TR) = Rp 1,764,400,509,961,- 6. Net Profit = Rp 2,275,934,068,306,- 7. Pay Out Time (POT) = 4.87 years 8. Break Event Point (BEP) = 33.49 % 9. Internal Rate of Return (IRR) = 30.04 % 10. Rate of Return (ROR) = 30.35 % Based on the technical and economic feasibility studies above, it can be concluded that the Preliminary Plant Design of Isobutylene is feasible to proceed to the design stage.