Abstract The acrolein factory is designed with a production capacity of 30,000 tons/year. The raw materials used are propene and oxygen with the help of a bismuth-molybdate catalyst through an oxidation reaction. The oxidation reaction produces acrolein as the main product and acrylic acid as a side product. The average import of acrolein in Indonesia is 38.000 ton/year (BPS, 2023), it is …