butylene

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butylene

Any one of several hydrocarbons with a formula C4H8, of the ethylene series, either as one of seven straight chain isomers or one of three branched chains. They are gases at room temperature, but easily liquefied by raising the pressure or lowering the temperature.
References in periodicals archive ?
Demand for butylenes derivatives decreased in 2009 from previous highs, often achieved in 2007, due to the impact of the global economic recession.
To find out more about the current market issues and CMAI's outlook for the butylenes industry, order this analysis now at www.
The markets and associated technologies that are developing to become significant forces in the butylenes markets include iso-octane and alkylation to replace MTBE, isobutylene conversion to polyisobutylene, butene-1 for polyethylene co-monomer, metathesis to make propylene, and dimerization to make octene for conversion to isononyl alcohol for DINP plasticizers.
In 2002, 40 percent of global demand for contained normal butylenes came from use in the production of secondary butyl alcohol/methyl ethyl ketone (SBA/MEK).
This new development in oxo technology, known as UNOXOL(TM) 10, uses butylenes as feedstock which, at Yeochun, is available in the form of a raffinate II.
The technology, marketed under the name ISOMPLUS(TM), will enable Lyondell to convert normal butylenes (Raffinate II) from its olefins plants to isobutylene in a single-step process.
This also represents the most cost-effective avenue for upgrading the value of available normal butylenes at our Channelview complex.