Prarancangan Pabrik Pembuatan Metil Merkaptan dengan Proses Sintesis Metanol dan Hidrogen Sulfida Menggunakan Modifikasi Katalis NiMo/Al2O3 Kapasitas 20.800 Ton/Tahun

Abstract

Methyl mercaptan is a carbon compound in the air that is colorless, can burn at room temperature, and also has a foul odor. Methyl mercaptan in low concentrations is often used as a raw material in the manufacture of menthionine which is the result of hydrolysis of essential amino acids in the manufacture of animal feed. The foul smell of methyl mercaptan also makes this material often used as a gas leak indicator. The pre-design of the plant for the manufacture of methyl mercaptan from methanol and hydrogen sulfide raw materials is designed with a production capacity of 20,800 tons/year and operates for 330 days a year. In the production process, four stages are used, namely: preparation of raw materials, reactions, product purification and methanol recycling. The location of the factory is planned to be in the Gresik Industrial Estate, Gresik Regency, East Java with a land area of 9,436.8 m2. The workforce needed is 139 people in the form of a factory business entity is a Limited Liability Company (PT) and a line organizational structure. The results of the economic evaluation showed an investment capital (CI) value of IDR 2,212,495,500,626, total production costs of IDR 633,022,452,159 and sales profit of IDR 529,815,822,461 with a net profit of IDR 370,926,075,722. This factory is projected to reach break-even point (BEP) at 52.8% of capacity with return on investment (POT) for 5 years and 10 months. Based on the results of economic analysis, the pre-design of this factory is considered feasible to be established.