Pra Rancangan Pabrik Asetat Anhidrid Dari Asam Asetat Dan Ketene Dengan Kapasitas 10.000 Ton/Tahun Perancangan Pabrik

Abstract

Production of Acetic anhydryde has good prospects for development, when viewed from the potential of raw materials and industrial users, but until now this sector has not developed optimally.Seeing the market prospects and development of acetic anhydride consumption in Indonesia for various industrial sectors,especially the pharmacy industry continues to increase each year,it is necessary to study the market to see the prospect of the establishment of a new plant in the form of pre-plant design. The factory is planned to set up in Bawen,Semarang, Central Java,with a production capacity of 10,000 tons per year.The establishment started in early 2021 and will be operational in early 2022.The process used in acetic anhydride plant by reaction of ketene that prepared by thermal cracking of acetone with acetic acid in the isothermal packed bed reactor at the temperature 80°C and pressure 1 atm. The company was incorporated Limited Liability Company (PT) where the organizational structure used is a line and staff. The company is led by a manager with a number of employees 156 people. From the results of the economic analysis, the result construction and installation of the plant is done for one year so that the plant can be operational starting in 2022. Profit before tax of Rp 57.927.531.287,28 / year, and a profit after tax 22% of Rp 45.183.474.404,08 / year. Percentage ROI before taxes by 26% and the ROI after tax of 20%. Requirement ROI before tax for the chemical plant with a low risk of age is 11% (Aries & Newton, 1955). POT before tax for 2,78 years and 3.31 POT after tax during the year. Requirement POT before tax for low-risk chemical plants maximum is 5 year (Aries & Newton, 1955). Break Event Point (BEP) at 51,20%, and Shut Down Point (SDP) at 26,74%. BEP for chemical plants is generally 40-60%. From the results of economic analysis and if supported with Indonesia's economy stable,then the acetic anhydride plant with a capacity of 10.000 tons per annum feasible was established.