Olefins are acyclic and cyclic hydrocarbons having one or more carbon-carbon double bonds, apart from the formal ones in aromatic compounds. The class olefins subsumes alkenes and cycloalkenes and the corresponding polyenes.
family of molecules including in particular ethylene and propylene, which constitutes the raw material allowing for the manufacture of many plastics.
Class of unsaturated paraffin hydrocarbons recovered from petroleum. Typical examples include: butane, ethylene and propylene.