Liquid phase alkylation or transalkylation process using zeolite beta
OwnerRobert A. Innes, Stacey I. Zones +1inventors
InventorsRobert A. Innes, Stacey I. Zones, Gerald J. Nacamuli
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Abstract
A process for the alkylation or transalkylation of an aromatic hydrocarbon which comprises contacting the aromatic hydrocarbon with a C.sub.2 to C.sub.4 olefin alkylating agent or a polyalkyl aromatic hydrocarbon transalkylating agent, under at least partial liquid phase conditions, and in the presence of a catalyst comprising zeolite beta.
Claims45
A process for the alkylation of an aromatic hydrocarbon which comprises contacting a stoichiometric excess of the aromatic hydrocarbon with a C.sub.2 to C.sub.4 olefin under at least partial liquid phase conditions and in the presence of a catalyst comprising zeolite beta.
A process for the transalkylation of an aromatic hydrocarbon which comprises contacting the aromatic hydrocarbon with a polyalkyl aromatic hydrocarbon under at least partial liquid phase conditions and in the presence of a catalyst comprising zeolite beta.
A process for preparing monoalkylated aromatic hydrocarbons which comprises:
- (a) contacting a stoichiometric excess of an aromatic hydrocarbon feed with a C.sub.2 to C.sub.4 olefin in an alkylation zone under at least partial liquid phase conditions and in the presence of a catalyst comprising zeolite beta;
- (b) separating the product from step (a) into fractions comprising (1) an aromatic hydrocarbon fraction, (2) a monoalkyl aromatic hydrocarbon fraction and (3) a polyalkyl aromatic hydrocarbon fraction;
- and
- (c) contacting the polyalkyl aromatic hydrocarbon fraction with additional aromatic hydrocarbon feed in a transalkylation zone under at least partial liquid phase conditions and in the presence of a catalyst comprising zeolite beta.
Dependencies are inferred from the claim text.