Patent ID: 8470726
Filing Date: 2013-06-25
Classification: B01J,C07C

Abstract:
1. A catalyst for alkylation of aromatics with C8 to C24 olefins comprising: a first zeolite, wherein the acidity is characterized by having less than 70% of NH3 desorption off the zeolite at temperatures greater than 400° C., comprising a microporous crystalline zeolite having a layered framework of at least AlO where M is at least one exchangeable cation selected from the group consisting of alkali and alkaline earth metals, “m” is the mole ratio of M to (Al+E) and varies from 0 to about 2.0, R is at least one organoammonium cation selected from the group consisting of quaternary ammonium cations, diquaternary ammonium cations, protonated amines, protonated diamines, protonated alkanoamines and quaternized alkanolammonium cations, “r” is the mole ratio of R to (Al+E) and has a value of about 0.05 to about 5.0, “n” is the weighted average valence of M and has a value of about 1 to about 2, “p” is the weighted average valence of R and has a value of about 1 to about 2, E is an element selected from the group consisting of gallium, iron, boron, chromium, indium and mixtures thereof, “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from about 6.5 to about 35 and “z” is the mole ratio of O to (Al+E) and has a value determined by the equation: a second zeolite having a silica to alumina molar ratio less than 8; and at least one rare earth element incorporated into the second zeolite by ion exchange in an amount greater than 16.5 wt % of the second zeolite; wherein the first zeolite component is in an amount between 10 and 90% by weight of the catalyst, and the second zeolite component is in an amount between 10 and 90% by weight.