Process for preparation of liquefied petroleum gas selective cracking catalyst

US7517827B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

• Gopal Ravichandran · Barwala, IN
• Biswanath Sarkar · Faridabad, IN
• Mohan Prabhu Kuvettu · Barwala, IN
• Deepa Megavathu · Faridabad, IN
• Sanjay Kumar Ray · Barwala, IN
• Shiba Prasad Choudhury · Faridabad, IN
• Sudipta Roy · Faridabad, IN
• Venkatachalam Krishnan · Faridabad, IN
• Satish Makhija · Barwala, IN

Key dates

• Filing date: Aug 17, 2006
• Grant date: Apr 14, 2009
• Expiry date: Aug 17, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2229/42
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a cracking catalyst composition for cracking heavy hydrocarbon and processes for preparing the catalyst. The process can include treating zeolite with sodium free basic compound with or without phosphate, treating an alumina with a dilute acid, acidifying a colloidal silica, preparing a fine slurry of clay with a source of phosphate, adding alumina slurry and/or acidified colloidal silica to clay phosphate slurry, adding treated zeolite and spray-drying the slurry and calcining the same to obtain a cracking catalyst having adequate ABD and attrition resistance property.