Patent ID: 9079817
Filing Date: 2015-07-14
Classification: C07C,C10G

Abstract:
1. A process for increasing the yields of aromatics from a hydrocarbon feedstream, comprising: passing the hydrocarbon feedstream to a fractionation unit to generate an overhead stream comprising C7 and lighter hydrocarbons, and a bottoms stream comprising C8 and heavier hydrocarbons; passing the overhead stream to a dehydrogenation reactor to dehydrogenate naphthenes and generate a dehydrogenated stream having a reduced naphthenic content; passing the bottoms stream to a first reforming reactor system to generate a first reactor effluent having an increased aromatic content, wherein the first reforming reactor system is operated at an inlet temperature between 440° C. and 560° C.; passing the first reactor effluent to a second reforming reactor system, and the dehydrogenated overhead stream to the second reforming reactor system to generate an aromatics effluent stream, wherein the second reactor system is operated at an inlet temperature between 540° C. and 580° C. and a pressure less than 580 kPa.