Manufacture of butadiene from ethylene
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United States of America Patent
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Nov 29, 2016
Grant Date -
Jan 15, 2015
app pub date -
Jul 7, 2014
filing date -
Jul 10, 2013
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Abstract
A method of producing butadiene includes: (1) dimerizing ethylene to butene followed by (2) oxidatively dehydrogenating the butene to butadiene and (3) recovering the butadiene by (i) absorbing the product with a hydrocarbon absorber oil and (ii) stripping a crude product stream from the absorber oil. The absorber oil is selected so as to be effective to sequester ethylene dimerization-derived impurities from the system.
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