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C3
and C4 are the main contents of refinery gas;
and the cracked gas from ethylene plant also abounds in C3
and C4, whose full and proper utilization is an
efficient approach to increasing the economic benefits of
refineries or petrochemical plants.
In
China, traditional technologies using propene as feedstock
are faced with shrinking margins and increasing
competition, which necessitates the development of new
applications for propene.
As
to the utilization of butene (butadiene is not included),
most of which is burned as fuels except that isobutene is
transferred into MTBE via etherification process. More
economic benefits can be gained through the hydration of
n-butene to produce methyl ethyl ketone (MEK).
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