Patent ID: 8546631
Filing Date: 2013-10-01
Classification: C07C

Abstract:
1. A method for treating a hydrocarbon feed stream comprising an aromatic compound, a nitrogen compound, and an unsaturated aliphatic compound, the method comprising: contacting the hydrocarbon feed stream with an absorbent comprising activated carbon at contacting conditions including a temperature of at least about 50° C. and the presence of water in an amount of at least about 50 ppm relative to the hydrocarbon feed stream on a weight basis to remove the unsaturated aliphatic compound and produce a treated hydrocarbon stream; passing at least a portion of the treated hydrocarbon stream to a nitrogen removal zone including a nitrogen removal adsorbent to produce an alkylation substrate stream having a lower concentration of the nitrogen compound relative to the treated hydrocarbon stream; and passing at least a portion of the alkylation substrate stream to an alkylation zone wherein the portion of the alkylation substrate stream and an alkylating agent are contacted with an alkylation catalyst to produce an alkylated aromatic compound.