Patent ID: 9120715
Filing Date: 2015-09-01
Classification: C07C

Abstract:
1. A process for the alkylation of an aromatic substrate comprising: providing an alkylation reaction zone containing an alkylation catalyst; introducing a feedstock comprising an aromatic substrate, an alkylating agent, and an amount of nitrogen containing compounds selected from a group consisting of methylamine, dimethylamine, ethylamine, trimethylamine, or combinations thereof into an inlet of the alkylation reaction zone and into contact with the alkylation catalyst; operating the alkylation reaction zone at temperature and pressure conditions sufficient to cause alkylation of the aromatic substrate in the presence of the alkylation catalyst to produce an alkylation product comprising a mixture of the aromatic substrate, monoalkylated aromatic components, and polyalkylated aromatic components; withdrawing the alkylation product from the alkylation reaction zone, wherein amounts of the nitrogen containing compounds in the feedstock are monitored in a range of from 15 to 35 wppm by dry colorimetry, wherein the monitoring of the amounts of the nitrogen containing compounds comprises: