Patent ID: 8344200

Claim:
A method for removing bromine-reactive contaminants from an aromatic hydrocarbon feedstream which comprises: (a) providing an aromatic hydrocarbon feedstream which has a total olefins content of less than 10,000 ppm and dienes in the amount of less than 1000 ppm; and (b) contacting the feedstream with an acid active catalyst composition in a reactor under conditions sufficient to at least partially remove bromine-reactive contaminants to provide a reactor effluent comprising treated aromatic hydrocarbon feedstream; wherein said acid active catalyst is treated before step (b) by a step of dewatering and then a step of flowing said feedstream in step (a) over said dewatered catalyst for a period of at least 0.5 days, and further wherein said step of dewatering comprises flowing said feedstream in step (a) over said catalyst at a temperature of at least 100° C. until the water in said reactor effluent drops below 1000 ppm.