Process and Apparatus for the Production of Paraxylene
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United States of America Patent
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Feb 19, 2015
app pub date -
Jul 18, 2014
filing date -
Aug 15, 2013
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Abstract
A process for the production of paraxylene is disclosed, including utilizing a crystallization unit and a selective adsorption unit to produce paraxylene-rich streams comprising 99.7+wt % paraxylene and paraxylene-depleted streams comprising 10 to 15 wt % paraxylene. A portion of the paraxylene-depleted stream from the crystallization unit is passed through a liquid phase isomerization to produce an isomerized product containing xylenes at equilibrium or near-equilibrium concentration of 24 wt %.
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