Patent ID: 9126184
Filing Date: 2015-09-08
Classification: B01J,C07C

Abstract:
1. A process for producing a monoalkylated aromatic compound comprising: passing a non-basic aromatic feedstock and an olefinic compound to an alkylation reactor, wherein the alkylation reactor comprises a catalyst comprising a zeolite having a silica to alumina molar ratio less than 8 and a rare earth element incorporated into the zeolitic framework, wherein the rare earth element is in an amount greater than 16.5 wt % of the zeolite with the balance being alkali, alkaline earth, nitrogen compound cations, or a mixture thereof, thereby generating an effluent stream, and wherein the rare earth elements are exchanged to a degree that the rare earth to aluminum molar ratio is in the range from 0.51 to 1.2, and wherein the balance of cation exchange is selected from the group consisting of alkali, alkaline earth, nitrogen compound cations, and mixtures thereof, and wherein the amount of alkali, alkaline earth, or nitrogen compound cations are substituted to the extent that the ratio of the alkali, alkaline earth, or nitrogen compound to aluminum is greater than 0.05; passing the effluent stream to a separation process thereby generating an aromatic stream, a product stream comprising a monoalkylated aromatic compound, and a non-product alkylated aromatic stream.