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US 6,274,784 B1Granted
Process for separating alkylaromatic hydrocarbons
AssigneeUop LLC
InventorsMaureen L. Bricker, Charles P. McGonegal, Herman A. Zinnen
Life of this patent
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Abstract
A process for separating at least one C8 alkylaromatic hydrocarbon from a mixture containing at least one C8 alkylaromatic hydrocarbon and at least one C9 or C10 alkylaromatic hydrocarbon using zeolite Y or zeolite Y ion exchanged with a metal selected from the group consisting of calcium, sodium, strontium, a Group IB element, a Group VIII element and mixtures thereof.
Claims2
A separation process comprising:
- a) contacting a mixture containing (I) at least one C8 alkylaromatic hydrocarbon and (II) at least one C9 or C10 alkylaromatic hydrocarbon having at least one methyl or ethyl group, or a mixture thereof, with an adsorbent selected from the group consisting of zeolite Y ion exchanged with a metal selected from the group consisting of calcium, strontium, a Group IB element, a Group VIII element and mixtures thereof, and combinations thereof to selectively adsorb the C9 or C10 alkylaromatic hydrocarbon;
- b) collecting the C8 alkylaromatic hydrocarbon;
- and
- c) desorbing the adsorbed C9, C10, or mixture of C9 and C10, alkylaromatic hydrocarbon(s) using a desorbent and collecting the C9, C10, or mixture of C9 and C10 alkylammatic hydrocarbon(s).
1 more element
Dependencies are inferred from the claim text.