Alternative Fuels There are a variety of alternative fuel options, including bioalcohol, hydrogen, non-fossil natural gas, vegetable oil, biodiesel, chemically stored electricity, non-fossil methane, propane, and other biomass options. Propane as a Transportation Fuel Motor Fuel Propane, also known as Liquefied Petroleum Gas (LPG), is generated as part of crude oil refining and natural gas processing. LPG is the first product that results at the start of the crude oil refining process and is hence always produced when crude oil is refined. In natural gas processing, butane, LPG, ethane,, pentane, and other heavier hydrocarbons go through a process to ensure adequate removal before they go into the pipeline system. Propane is a gas that can be converted into a liquid at a moderate pressure of 160 pounds per square inch (psi) and is stored in pressure tanks at...