Production of propylene employing dimerising ethylene to...

Details Production of propylene employing dimerising ethylene to... Production of propylene employing dimerising ethylene to...

2011-01-11

2011-01-11

Dang, Thuan Dinh (Department: 1797)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce unsaturate

C585S328000, C585S329000, C585S330000, C585S646000, C585S647000, C585S650000, C585S651000, C585S670000, C585S511000, C585S512000

Reexamination Certificate

active

07868216

ABSTRACT:
A process for producing high purity propylene comprises:a step for dimerizing ethylene to 1-butene;a step for hydroisomerizing 1-butene to 2-butenes; anda step for metathesis of 2-butenes by ethylene. Advantageously, the ethylene used to produce the 1-butene and ethylene for metathesis derive from a steam cracking unit. To increase propylene production, the process can use a steam cracking or FCC C4cut as an additional butene source.

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“Petrochemical Processes—Hydrocarbon Processing” Mar. 2003, p. 126.

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