LPG carriers

Tankers fitted to transport such volatile products as propane, butane, ammonia, and vinyl chloride monomer. These cargoes require high-pressure or refrigerated storage to keep them in liquid form. In these times of slack employment in their specialty, some of these tankers haul low-density clean products such as natural gasoline and naphtha. A few LPG carriers equipped with unusually powerful cooling systems can transport ethylene.