Process for Aromatic Alkylation

This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the foll...

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Main Authors ELIA CHRISTINE NICOLE, ZHANG LEI, IACCINO LARRY LEE, MOHR GARY DAVID, DAKKA JIHAD MOHAMMED, BUCHANAN JOHN SCOTT, CRANE ROBERT ANDREW, FENG XIAOBING, RAICH BRENDA ANNE, SANTIESTEBAN JOSE' GUADALUPE
Format Patent
LanguageEnglish
Published 08.01.2009
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:This invention relates to a process for the selective alkylation of toluene and/or benzene with an oxygen-containing alkylation agent. In particular, the process uses a selectivated molecular sieve which has been modified by the addition of a hydrogenation component, wherein at least one of the following conditions is met: (a) the selectivated molecular sieve has an alpha value of less than 100 prior to the addition of the hydrogenation component, or (b) the selectivated and hydrogenated catalyst has an alpha value of less than 100. The process of this invention provides high selectivity for the alkylated product while reducing catalyst degradation.
Bibliography:Application Number: US20080208011