Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By condensation of entire molecules or entire hydrocarbyl...
Reexamination Certificate
2006-11-28
2006-11-28
Dang, Thuan Dinh (Department: 1764)
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By condensation of entire molecules or entire hydrocarbyl...
C585S323000
Reexamination Certificate
active
07141710
ABSTRACT:
The invention relates to a process for producing alkylated aromatics, preferably ethylbenzene, in a multiple bed reactor in which at least two catalysts, each comprising a molecular sieve, are used in sequential beds. The first alkylation catalyst is selected to have a higher activity or alpha value than the subsequent alkylation catalyst.
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Williams, P.T. et al., “Catalytic pyrolysis of tyres: influence of catalyst temperature”, Fuel, IPC Science and Technology Press, Guildford, Great Britain, vol. 81, No. 18, Dec. 2002, pp. 2425-2434, XP004380934.
Dang Thuan Dinh
ExxonMobil Chemical Patents Inc.
Kubena Linda A.
Tyus Darryl M.
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