Patent ID: 8802911

Claim:
A method of producing an alkylaromatic by the alkylation of an aromatic with an alkylating agent, the method comprising: providing at least one reaction zone containing a regenerated H-beta zeolite catalyst; introducing a feed stream to the reaction zone, wherein the feed stream comprises an aromatic, an alkylating agent, and catalyst poisons averaging at least 5 ppb; reacting at least a portion of the aromatic under alkylation conditions to produce an alkylaromatic; wherein the regenerated H-beta zeolite catalyst is produced by heating an at least partially deactivated H-beta zeolite catalyst to a series of temperatures ranging from about 200° C. to about 500° C., said heating comprising: heating the at least partially deactivated H-beta zeolite catalyst to a first temperature with a gas containing nitrogen and 2 mol % or less oxygen for a period of time for a time sufficient to provide an output stream having an oxygen content of about 0.1 mol %; heating up the at least partially deactivated H-beta zeolite catalyst at a second temperature higher than the first temperature for a period of time sufficient to provide an output stream having a certain oxygen content.