INTEGRATED HYDROGENATION/DEHYDROGENATION REACTOR IN PLATFORMING PROCESS Russian patent published in 2015 - IPC C10G35/04 C10G69/08 C07C15/08 C07C15/06 C07C15/04 C07C15/02 

FIELD: chemistry.

SUBSTANCE: method comprises: 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 hydrogenation/dehydrogenation reactor system and generating a first stream having C6 and C7 aromatics with low olefin content, wherein the hydrogenation/dehydrogenation reactor system is operated at a temperature between 420°C and 460°C; passing the bottoms stream to a bottoms reforming unit, to generate bottoms reformate comprising aromatics; passing the first stream and the bottoms reformate to a substantially isothermal reactor system, thereby generating an aromatics stream wherein the isothermal reactor system is operated at a temperature greater than 540°C; and passing the aromatics stream to a reformate splitter, to generate a reformate overhead stream comprising C7 and lighter aromatics and C7 and lighter paraffins, and a bottoms stream comprising C8 and higher hydrocarbons.

EFFECT: reduced costs and power consumption.

8 cl, 2 dwg