 East Central South Dakota | Ethanol and biodiesel are completely different molecular animals. Vegetable oil is a complex molecule and ethanol very simple. It takes a lot of steps and chemistry to make vegetable oil into a fuel. Waxing begins at 35 degrees and that is a big thing when you are flying at a minus 40-degree altitude---adds expense and engineering. Vegetable oil is terribly economically inefficient to hydrocarbons. Ethanol just keeps getting more efficient. We would be better off to frac more diesel and kerosene out of a barrel of oil and move ethanol to e-20. Ethanol has better engineering traits and by-products are desirable. |