Method for producing p-xylene
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United States of America Patent
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Jul 20, 2021
Grant Date -
Aug 29, 2019
app pub date -
Nov 16, 2017
filing date -
Nov 16, 2016
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Abstract
Provided is a method for producing p-xylene, comprising: a provision step of providing a C4 fraction comprising at least isobutene as a product formed by fluidized catalytic cracking of a heavy oil fraction; a dimerization step of bringing a first raw material comprising the isobutene into contact with a dimerization catalyst to produce a C8 component comprising a dimer of isobutene; and a cyclization step of bringing a second raw material comprising the C8 component with a dehydrogenation catalyst to produce p-xylene through a cyclization/dehydrogenation reaction of the C8 component.
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