Methods for synthesizing hierarchical zeolites for catalytic cracking

US10427142B1 · kind B1 · utility

Assignees

• KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS · SA
• SAUDI ARABIAN OIL COMPANY · SA

Inventors

• Mansour Ali Al-Herz · Hofuf, SA
• Musaed Salem Al-Ghrami · Dammam, SA
• Mohammed Abdul Bari Siddiqui · Dhahran, SA
• Mian Rahat Saeed · Dhahran, SA
• Rabindran Jermy Balasamy · Dhahran, SA

Key dates

• Filing date: Mar 29, 2019
• Grant date: Oct 1, 2019
• Expiry date: Mar 29, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/20
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Provided here are zirconium-substituted hierarchical zeolite compositions and methods of preparing such catalytic compositions. One such method involves subjecting the zirconium-substituted zeolite to a framework modification process using a single template to produce a framework-modified zeolite, followed by subjecting the framework-modified zeolite to an ion exchange process to produce a hierarchical zeolite composition. Also provided are methods of catalytic cracking of hydrocarbon feedstocks using these zirconium-substituted hierarchical zeolite compositions.