To start the production process, the feedstocks, such as vegetable oils, animal fats, and other biomass, are first delivered to the renewable diesel facility, where they undergo a rigorous preparation process that involves cleaning, filtering, and drying to remove impurities and contaminants. Once the feedstocks are properly prepared, they are then processed through a series of reactors, separators, and distillation columns, in a process known as hydroprocessing.
Hydroprocessing is a chemical process that involves heating the feedstocks to high temperatures and high pressures in the presence of hydrogen gas, catalysts, and other chemicals, to convert the complex organic molecules into simpler hydrocarbon molecules. This process results in the production of a high-quality, renewable diesel fuel that is virtually identical to petroleum diesel in terms of its chemical composition and physical properties.
After the hydroprocessing step, the product separation process begins, where the renewable diesel fuel is separated from the other products of the hydroprocessing reaction, such as gasses, waxes, and other by-products. The final product is then stored and transported to various markets, such as fuel retailers, transportation companies, and other end-users.