Purpose: Propylene is polymerized in the presence of acidic catalysts such as sulfuric acid and anhydrous fluoric acid to form a mixture of dimers, trimers, and tetramers. It can be used as a high octane fuel, with the largest amount of propylene used in the production of polypropylene. Additionally, propylene can be used to produce acrylonitrile, isopropanol, phenol and acetone, butanol and octanol, acrylic acid and its lipids, as well as to produce cyclopropane and propylene glycol, epichlorohydrin, and synthetic glycerol.