Pentene
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Pentene can refer to either of two hydrocarbons with chemical formula C5H10 containing a single double bond within its molecular structure. 1-Pentene and 2-pentene differ by the location of the double bond at the first or second carbon-carbon bond. 1-Pentene is an alpha-olefin.
Most often 1-pentene is made as a byproduct of catalytic or thermal cracking of petroleum, or during production of ethylene and propylene via thermal cracking of hydrocarbon fractions.
1-Pentene is rarely isolated as a separate compound. Instead, it is most often blended into gasoline or, in a mixture with other hydrocarbons, alkylated with isobutane to make gasoline.
The only commercial manufacturer of 1-pentene, an olefin with a double bond on the end of the linear chain, is Sasol Ltd, a South African petrochemical company, where it is separated from crude made by the Fischer-Tropsch process.
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