Production of propylene and ethylene from butane and ethane

Details Production of propylene and ethylene from butane and ethane Production of propylene and ethylene from butane and ethane

2011-06-21

2011-06-21

Dang, Thuan Dinh (Department: 1771)

Chemistry of hydrocarbon compounds

Plural serial diverse syntheses

To produce unsaturate

C585S328000, C585S648000, C585S643000, C585S259000

Reexamination Certificate

active

07964762

ABSTRACT:
The present invention relates to a process for the producing propylene and ethylene from a light hydrocarbon stream comprising essentially ethane and butane. The process involves a non-catalytic cracking of ethane and normal-butane followed by a metathesis of ethylene and 2-butene to increase the propylene yield. Optionally the by-produced iso-butane is dehydrogenated and subsequently the produced iso-butene is converted to other valuable products like di-isobutylene, alkylate for gasoline blending tertiary-butyl-ethers, poly-isobutylene methyl-metacrylate or isoprene.

REFERENCES:
patent: 5026936 (1991-06-01), Leyshon et al.

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