FCC catalyst prepared by a process involving more than one silica material

US11458456B2 · kind B2 · utility

Assignee

• ALBEMARLE CORPORATION · US

Inventors

• Amir Sabahi · Missouri City, US
• Andrew Loebl · Charlotte, US
• Sandra Gavalda · Manvel, US
• Julie Francis · Webster, US
• Eswaramoorthi Iyyamperumal · Houston, US
• Min Li · Qingdao, CN
• Andrea Marcinkova · Houston, US

Key dates

• Filing date: Jan 11, 2019
• Grant date: Oct 4, 2022
• Expiry date: Jan 11, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Process for the preparation of a catalyst and a catalyst comprising more than one silica is provided herein. Thus, in one embodiment, the invention provides a particulate FCC catalyst comprising about 5 to about 60 wt % one or more zeolites, about 10 to about 45 wt % quasicrystalline boehmite (QCB), about 0 to about 35 wt % microcrystalline boehmite (MCB), greater than about 0 to about 15 wt % silica from sodium stabilized colloidal silica, greater than about 0 to about 30 wt % silica from ammonia stabilized or lower sodium colloidal silica, and the balance clay and the process for making the same. This process results in attrition resistant catalysts with good performance.