Patent ID: 8926829
Filing Date: 2015-01-06
Classification: C10G

Abstract:
1. A process for producing aromatics from a naphtha feedstream comprising: passing the feedstream to a first fractionation unit, thereby generating a first stream comprising light hydrocarbons comprising C7 and lighter hydrocarbons, and a second stream comprising heavy hydrocarbons; passing the first stream to a first reformer, operated at a first set of reaction conditions including a first temperature and a first pressure wherein the first pressure is between 240 kPa and 500 kPa (absolute), thereby generating a first reformer effluent stream; passing the second stream to a second reformer, operated at a second set of reaction conditions including a second temperature and a second pressure, and wherein the first temperature is greater than the second temperature, and wherein the first temperature is at least 560° C. and wherein the second pressure is between 240 kPa and 500 kPa (absolute), thereby generating a second reformer effluent stream; passing the first reformer effluent stream and the second reformer effluent stream to a reformate splitter, thereby creating a reformate overhead stream and a reformate bottoms stream; passing the reformate overhead stream to an aromatics purification unit, thereby creating a purified aromatics stream comprising C6 to C7 aromatics, and a raffinate stream; and passing the raffinate stream to the first reformer; wherein the catalyst in the first reformer and the second reformer comprises a Group VIII metal on a support.