Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Patent
1995-06-05
1997-10-07
Lewis, Michael
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
502 64, 502 71, 502 63, C07C 268
Patent
active
056750471
ABSTRACT:
The present invention is a method of producing an ex situ selectivated catalytic molecular sieve for shape selective aromatic alkylation in which a catalytic molecular sieve having a reduced activity is modified by being exposed to at least two selectivation sequences, each sequence includes contacting the molecular sieve with a selectivating agent and subsequently calcining the contacted molecular sieve. The present invention is also a method of producing an ex situ selectivated catalytic molecular sieve for shape selective aromatic alkylation in which a catalytic molecular sieve is modified by being exposed to at least two selectivation sequences and then reduced in activity. The ex situ selectivated catalytic molecular sieves may optionally be further modified by in situ trim selectivation. The present invention is also a process for shape selective aromatic alkylation utilizing the modified molecular sieves.
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Beck Jeffrey S.
Dessau Ralph M.
Olson David H.
Dunn Jr. Thomas G.
Keen Malcolm D.
Lewis Michael
Mobil Oil Corporation
Roberts Peter W.
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