Electronic Theses and Dissertation

ABSTRAK
Prarancangan pabrik kalsium sulfat dihidrat (CaSO4.2H2O) menggunakan asam sulfat (H2SO4) dan batuan kapur sebagai bahan baku. Kapasitas produksi sebesar 25.000 ton/tahun dengan waktu operasi 330 hari/tahun dan waktu 24 jam/hari. Pabrik ini direncanakan dibangun di Desa Semanding, Kecamatan Semanding, Kabupaten Tuban, Jawa Timur, Indonesia dengan luas area pabrik 18.286 m2. Bentuk perusahaan yang direncanakan adalah Perseroan Terbatas (PT) dengan menggunakan metode struktur organisasi garis dan staf dan tenaga kerja sebanyak 150 orang. Kebutuhan air untuk pabrik berasal dari Sungai Bengawan Solo dengan laju alir 5.547 kg/jam, dan untuk kebutuhan listrik diperoleh dari generator dengan daya 475,2273 kW. Hasil analisis ekonomi diperoleh sebagai berikut:
1. Fixed Capital Investment (FCI) = Rp 211.095.617.980,-
2. Working Capital Investment (WCI) = Rp 37.252.167.879,-
3. Total Capital Investment (TCI) = Rp 248.347.785.859,-
4. Total Production Cost (TPC) = Rp 1.077.959.868.910,-
5. Sales Cost (SC) = Rp 1.198.638.384.767,-
6. Laba Bersih = Rp 90.508.886.893,-
7. Pay Out Time (POT) = 3,7 tahun
8. Break Event Point (BEP) = 37,66%
9. Internal Rate of Return (IRR) = 28%
Berdasarkan studi kelayakan teknis dan ekonomis diatas, maka dapat disimpulkan bahwa Prarancangan Pabrik Kalsium Sulfat Dihidrat ini layak untuk dilanjutkan ke tahap rancangan.

ABSTRACT This preliminary of calcium sulfate dihydrate (CaSO4.2H2O¬) plant design uses sulphuric acid (H2SO4) and limestone as raw materials. The production capacity is 25.000 tons/year with an operating time of 330 working days/year and 24 hours/day. This factory is planned to be built in Semanding Village, Semanding District, Tuban Regency, Jawa Timur, Indonesia with a factory area of 18.286 m2. The planned form of the company is a Limited Liability Company (PT) using the line organizational structure method and a workforce of 150 people. The air requirement for the factory comes from the Bengawan Solo River with a flow rate of 5.547 kg/hour, and for electricity needs it is obtained from a generator with a power of 475,2273 kW. The results of the economic analysis are obtained as follows: 1. Fixed Capital Investment (FCI) = Rp 211.095.617.980,- 2. Working Capital Investment (WCI) = Rp 37.252.167.879,- 3. Total Capital Investment (TCI) = Rp 248.347.785.859,- 4. Total Production Cost (TPC) = Rp 1.077.959.868.910,- 5. Sales Cost (SC) = Rp 1.198.638.384.767,- 6. Net Profit = Rp 90.508.886.893,- 7. Pay Out Time (POT) = 3,7 tahun 8. Break Event Point (BEP) = 37,66% 9. Internal Rate of Return (IRR) = 28% Based on the technical and economic feasibility studies above, it can be concluded that the Preliminary Plant Design of the Calcium Sulfate Dihydrate Plant is feasible to proceed to the design stage.