Patent ID: 8604262
Filing Date: 2013-12-10
Classification: C10G

Abstract:
1. A process for producing aromatics from a hydrocarbon feedstream comprising: passing the hydrocarbon feedstream to a separation unit, thereby creating a light process stream having a reduced concentration of endothermic hydrocarbon components, and a heavy process stream having a higher concentration of endothermic components; passing the light process stream to a first reformer, wherein the first reformer has a first operating temperature that is greater 540° C. than and an operating pressure less than 580 kPa (gauge); passing the heavy process stream to a second reformer, wherein the second reformer has a second operating temperature and an operating pressure less than 580 kPa (gauge), thereby creating a second reformer effluent stream, wherein the first operating temperature is greater than the second operating temperature; passing the second reformer effluent stream to the first reformer, thereby creating a first reformer effluent stream; passing the first reformer effluent stream to an aromatics separation unit, thereby creating an aromatics product stream and a raffinate stream; wherein the first reformer and the second reformer have the same catalyst, and wherein the catalyst comprises a Group VIII noble metal on a support.