Fluid cracking process for producing low emissions fuels

US5318695A · kind A · utility

Assignee

• Exxon Research and Engineering Company · US

Inventors

• Paul E. Eberly, Jr. · Baton Rouge, US
• William E. Winter · Baton Rouge, US
• William L. Schuette · Baton Rouge, US
• William A. Wachter · Baton Rouge, US
• Tan-Jen Chen · Kingwood, US

Key dates

• Filing date: Nov 30, 1992
• Grant date: Jun 7, 1994
• Expiry date: Nov 30, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G11/05
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A fluid catalytic cracking process for producing relatively low emissions fuels. The feedstock is exceptionally low in nitrogen and aromatics and relatively high in hydrogen. The catalyst is an amorphous silica-alumina or a zeolitic material having a relatively small unit cell size. The feedstock can be characterized as having less than about 50 wppm nitrogen; greater than about 13 wt. % hydrogen; less than about 7.5 wt. % 2+ring aromatic cores; and not more than about 15 wt. % aromatic cores overall.