Process and Catalyst for C9+ Aromatics Conversion (ExxonMobil)
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Type
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Patent
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Inventor
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Jane
C. Cheng
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Inventor
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Christopher
G. Oliveri
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URL
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Free
Full Text Source: http://www.google.com/patents/US20150025283
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Assignee
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Exxonmobil
Chemical Patents Inc.
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Patent
Number
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US20150025283
A1
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Issue
Date
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Jan
22, 2015
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Abstract
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The
invention is directed to a multimetallic catalyst and its use in a reactor system in a C9+
aromatics conversion process in order to reduce the saturation of aromatic
species, reduce the production of C6+ non-aromatics byproducts, and achieve
higher benzene purity. The multimetallic catalyst exhibits improved
selectivity towards aromatic hydrocarbons in comparison to a traditional
Pt/ZSM-5 catalyst and comprises ZSM-5, a Group 6-10 metal, and an additional
metal not in Group 6-10. The C9+ aromatics conversion reactor system
comprises a top bed containing the multimetallic catalyst for dealkylation of
ethyl and propyl side chains, a second bed containing a catalyst comprising a
hydrogenation component for transalkylation, and an optional third bed
containing a catalyst without a hydrogenation component to convert
non-aromatic hydrocarbons to gas products.
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