Prarancangan Pabrik Pembuatan Propilen Glikol dari Gliserol melalui Proses Hidrogenasi Katalitik Menggunakan Katalis Cu/ZnO Kapasitas Produksi 40.000 Ton/Tahun

Abstract

Propylene glycol is a chemical substance in the form of a clear, thick, colorless liquid with a slight odor, a slightly bitter taste, and low vapor pressure. Propylene glycol can be used as a surfactant, humectant, antifreeze agent, solvent, preservative, and detergent formulation component. In addition, in the pharmaceutical field, this compound functions as a humectant, solvent, lubricant, fermentation and mold growth inhibitor, disinfectant, and solubility enhancer. The preliminary design of a propylene glycol manufacturing plant from glycerol as the raw material is planned with a production capacity of 40,000 tons per year, operating for 330 days per year. The plant is planned to be located in Ujung Tanjung, Rokan Hilir Regency, Riau. The purpose of this preliminary plant design is to apply chemical engineering knowledge, including mass and energy balances, equipment specifications, chemical engineering operations, utilities, and other areas of chemical engineering. The economic evaluation results for the propylene glycol plant using the catalytic hydrogenation method are as follows: Total investment cost : Rp1,651,640,852,511 Production cost : Rp947,006,578,296 Sales revenue : Rp1,439,999,985,600 Net profit : Rp328,502,971,279 Profit margin : 29.247% Break-even point : 50.18% Return on investment : 19.889% Pay out time : 5 years 1 month Return on network : 33.149% Internal rate of return : 8.564% Based on the economic analysis, it can be concluded that the establishment of a propylene glycol manufacturing plant from glycerol using the catalytic hydrogenation method is feasible.