Metathesis of ethylene and butene

Description Two chemical reactions take place in the OCT process propylene is formed by the metathesis of ethylene and butene-2 and butene-1 is isomerized to butene-2 as butene-2 is consumed in the metathesis reaction. 

Lummus Technology Propylene Ethylene and mixed C s Highly selective catalyst promotes formation of propylene by metathesis of ethylene and butene-2 while simultaneously isomerizing feed butene-1 to butene-2 25 2010... 

Because olefin metathesis is an equilibrium reaction, the Triolefin Process can be mn in the reverse direction to produce propylene from 2-butene and ethylene. Lyondell licensed the Phillips Triolefin process and opened the first propylene plant based on this technology in 1984, eventually expanding capacity to 450 000 metric tons per year. In 1997, Lummus Technology, who engineered the first two applications under license from Phillips, purchased the technology from Phillips. The metathesis of ethylene and butenes to propylene is now commercialized as Olefins Conversion Technology (OCT )... 

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