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.
a family of hydrocarbons with one carbon-carbon double bond.
Hydrocarbon molecules containing carbon-carbon double bonds. The name olefin comes from roots the imply oil former. The general formula for olefins is CnH2n, where n is 1, 2, 3, etc. Olefins are not found in crude oil, but are formed during cracking reactions in many refinery processes.
open chain hydrocarbons containing one or more double bonds, e.g. ethylene, propylene, etc.
various long-chain synthetic polymers (ex. polyethylene and polypropylene).
class of unsaturated paraffin hydrocarbons obtained from petrol
Plastics based on resins made by the polymerization of olefins or copolymerization of olefins with other unsaturated compounds, the olefins being the greatest amount by weight.
Olefins are highly reactive unsaturated compounds (that is, the carbon atoms in the molecule are able to accept additional atoms such as hydrogen or chlorine). Some are present in gasoline as a result of refinery manufacturing processes such as cracking. Some are created in the engine during combustion; most of these can be removed in the catalytic converter. They tend to be ozone formers and toxic.
Any long chain polymer composed of at least 85 percent by weight of ethylene, propylene or other olefin units. Yarns made from these polymers may be used in carpet construction.
Basic chemicals made from oil or natural gas liquids feed stocks; commonly used to manufacture plastics and gasoline. Examples are ethylene and propylene.
Unsaturated hydrocarbons that contain one or more carbon-carbon bonds in their molecules. Raw materials for plastics synthesis.
A group of unsaturated hydrocarbons of the general formula CnH2n and named after the corresponding paraffins by the addition of "ene" or "ylene" to the stem. Examples are ethylene and propylene.
Common name of unsaturated hydrocarbon gases e.g. ethylene, propylene, butadiene, used as base material in the petrochemical industries