Patents Represented by Attorney Darryl M. Tyrus

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  • Alkylaromatics production
    Patent number: 6984764
    Abstract: The present invention provides a process for producing a monoalkylated aromatic compound, particularly ethylbenzene or cumene, in which a polyalkylated aromatic compound is contacted with an alkylatable aromatic compound in the liquid phase and in the presence of a transalkylation catalyst comprising TEA-mordenite having an average crystal size of less than 0.5 micron.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: January 10, 2006
    Assignee: ExxonMobil Oil Corporation
    Inventors: Wieslaw J. Roth, Brian J. Ratigan, Dominick N. Mazzone