Production of Drying Oil Introduction Drying oils are additives to paints and varnishes to aid in the drying process when these products are applied to surfaces. A facility is to be designed to manufacture 25,000 metric tons/yr of drying oil (DO) from acetylated castor oil (ACO). Both of these compounds are mixtures. However, for simulation purposes, acetylated castor oil is modeled as palmitic (hexadecanoic) acid (C15H31COOH) and drying oil is modeled as 1-tetradecene (C14H28). In an Safety Piping and Pumps Design and Heat Integration Equipment Sizing To Produce 50 thousands metric tons a year of Drying Oil, we need 271560 GJ/year Mass Balance Prezi Product Drying oil, unsaturated fatty oil, either natural (such as linseed oil) or synthetic, that when spread into a thin film becomes hard, tough, and elastic upon exposure to the air. Drying oils are used as vehicles in paints, varnishes, and printing inks.