Electronic Theses and Dissertation

Prarancangan pabrik dimetil eter menggunakan metanol sebagai bahan baku utama. Proses produksi secara keseluruhan menggunakan proses dehidrasi metanol dengan konversi reaksi 80%. Kapasitas produksi sebesar 20.000 ton/tahun dengan waktu operasi 330 hari/tahun dan waktu 24 jam/hari. Pabrik ini direncanakan didirikan di Kecamatan Bontang Utara, Kota Bontang, Kalimantan Timur, Indonesia dengan luas area pabrik 19.710 m². Bentuk perusahaan yang direncanakan adalah Perseroan Terbatas (PT) dengan menggunakan metode struktur organisasi garis dan staf (tenaga kerja sebanyak 121 orang). Kebutuhan air untuk pabrik berasal dari Sungai Merah Guntung dengan laju alir 15.212,562 kg/jam, dan untuk kebutuhan listrik diperoleh dari Perusahaan Listrik Negara (PLN) dan generator dengan daya 829,29 kW. Hasil analisis ekonomi diperoleh sebagai berikut:
1. Fixed Capital Investment (FCI) = Rp607.307.770.433
2. Working Capital Investment (WCI) = Rp151.826.942.608
3. Total Capital Investment (TCI) = Rp759.134.713.042
4. Total Production Cost (TPC) = Rp480.374.430.066
5. Sales Revenue = Rp692.641.141.388
6. Laba Bersih = Rp159.200.033.491
7. Pay Out Time (POT) = 3,98 tahun
8. Break Event Point (BEP) = 38,7 %
9. Internal Rate of Return (IRR) = 17,63 %

Berdasarkan studi teknis dan kelayakan teknis dan ekonomis di atas, maka dapat disimpulkan bahwa perancangan pabrik dimetil eter ini layak untuk dilanjutkan ke tahap konstruksi.

The preliminary design of the dimethyl ether plant uses methanol as the main raw material. The overall production process uses methanol dehydration with a reaction conversion of 80%. Production capacity is 20,000 tons/year with 330 operating days/year and 24 hours/day. This plant is planned to be established in North Bontang District, Bontang City, East Kalimantan, Indonesia, with a plant area of 19,710 m². The planned company form is a Limited Liability Company (PT) using a line and staff organizational structure (121 employees). The water for the factory will be sourced from the Merah Guntung River with a flow rate of 15.212,562 kg/hour, and electricity will be obtained from the State Electricity Company (PLN) and generators with a capacity of 829.29 kW. The results of the economic analysis are as follows: 1. Fixed Capital Investment (FCI) = IDR 607,307,770,433 2. Working Capital Investment (WCI) = IDR 151,826,942,608 3. Total Capital Investment (TCI) = IDR 759,134,713,042 4. Total Production Cost (TPC) = IDR 480,374,430,066 5. Sales Revenue = IDR 692,641,141,388 6. Net Profit = IDR 159,200,033,491 7. Pay Out Time (POT) = 3.98 years 8. Break Event Point (BEP) = 38.7% 9. Internal Rate of Return (IRR) = 17.63% Based on the technical and economic feasibility studies above, it can be concluded that the design of this dimethyl ether plant is feasible to proceed to the construction phase.