Counter-current catalyst flow with split feed and two reactor train processing

US8882994B2 · kind B2 · utility

Assignee

• UOP LLC · US

Inventors

• Mark D. Moser · Elk Grove Village, US
• David A. Wegerer · Lisle, US
• Kurt M. VandenBussche · Lake in the Hills, US
• Manuela Serban · Des Plaines, US
• Mark P. Lapinski · Aurora, US
• Mary Jo Wier · Schaumburg, US
• Gregory J. Gajda · Mount Prospect, US

Key dates

• Filing date: Dec 15, 2011
• Grant date: Nov 11, 2014
• Expiry date: Dec 15, 2031

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/30
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process is presented for the increasing the yields of aromatics from reforming a hydrocarbon feedstream. The process includes splitting a naphtha feedstream into a light hydrocarbon stream, and a heavier stream having a relatively rich concentration of naphthenes. The heavy stream is reformed to convert the naphthenes to aromatics and the resulting product stream is further reformed with the light hydrocarbon stream to increase the aromatics yields. The process includes passing a catalyst stream in a counter-current flow relative to the hydrocarbon process stream.