Patent ID: 8058495
Filing Date: 2011-11-15
Classification: C07C,Y02P

Abstract:
1. A process for alkylating aromatic hydrocarbons comprising contacting a hydrocarbon feedstock comprising at least one alkylatable aromatic and a stream comprising at least one olefin having from 2 to about 6 carbon atoms with a catalyst at alkylation conditions and producing an alkylated aromatic product wherein the catalyst comprises a modified UZM-37 microporous crystalline zeolite having a three-dimensional framework of at least AlO 2 and SiO 2 tetrahedral units and an empirical composition on an anhydrous basis expressed by an empirical formula of: where M1 is at least one exchangeable cation selected from the group consisting of alkali, alkaline earth metals, rare earth metals, ammonium ion, hydrogen ion and mixtures thereof, “a” is the mole ratio of M1 to (Al+E) and varies from about 0.05 to about 50, “n” is the weighted average valence of M1 and has a value of about +1 to about +3, E is an element selected from the group consisting of gallium, iron, boron, and mixtures thereof, “x” is the mole fraction of E and varies from 0 to 1.0, y′ is the mole ratio of Si to (Al+E) and varies from greater than about 4 to virtually pure silica and z′ is the mole ratio of O to (Al+E) and has a value determined by the equation: and is characterized in that it has the x-ray diffraction pattern having at least the d-spacings and intensities set forth in Table A: is thermally stable up to a temperature of at least 600° C. and has a BET surface area of less than about 420 m