Prarancangan Pabrik Pembuatan Propilen Glikol dari Propilen Oksida melalui Proses Hidrasi dan Distilasi Menggunakan Katalis Metil Format dengan Kapasitas 40.000 Ton/Tahun

Abstract

The chemical industry in Indonesia is a vital sector that serves as an intermediary between upstream and downstream industries. One example of a product from the upstream industry is the chemical propylene glycol. The utilization of propylene glycol in industrial sectors is vast, particularly in the food, pharmaceutical, and cosmetic industries. Indonesia currently imports propylene glycol, but considering the projected imports in the coming years and the operational plants in several countries, a propylene glycol plant could be established in Indonesia, with operations commencing in 2032. The preliminary design of the propylene glycol production plant, utilizing the hydration method from propylene oxide, is planned to produce 40,000 tons per year and operate for 330 days annually. The production process will consist of five stages: raw material storage, raw material mixing, product formation reaction, methyl formate catalyst separation, and product purification. The proposed plant location is in Gerem Village, Grogol District, Cilegon Regency, Banten Province, covering an area of 11,492.4 m². The plant will require 165 employees, and the business entity will be a Limited Liability Company (PT) with a line-and-staff organizational structure. The economic evaluation shows an investment capital (CI) of IDR 106.400.064.084,79, total production costs of IDR 2.187.590.570.239, and sales of IDR 2.405.140.312.884, with a net profit of IDR 145.637.396.134,12. The profit margin is 9,05%, ROI is 23,19%, and IRR is 19.46%. The project is projected to break even (BEP) at 45,07% of the capacity, with an investment payback period (POT) of 4 years 4 months. Based on the economic analysis, the preliminary design of this plant is considered feasible for realization.