Stabilized inorganic oxide supports and adsorbents derived therefrom for carbon dioxide capture

US10112170B2 · kind B2 · utility

Assignee

• RELIANCE INDUSTRIES LIMITED · IN

Inventors

• Akuiri Satyanarayana Reddy · Guntur, IN
• Surajit Sengupta · Kitchener, CA
• Rajeshwer Dongara · Sayla, IN
• Asit Kumar Das · Faridabad, IN
• Vinay Amte · Dhamtari, IN
• Ashwani Yadav
• Pramod Kumar Bajpai · Patiala, IN
• Haripada Bhunia · Patiala, IN

Key dates

• Filing date: Jan 28, 2015
• Grant date: Oct 30, 2018
• Expiry date: Jan 28, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W10/33
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a stabilized inorganic oxide support for capturing carbon dioxide from gases having high regeneration capacities over many cycles. The method for preparing the stabilized inorganic oxide support includes stabilizing an alumina-containing precursor by either calcining or steaming, impregnating an alkali or alkaline earth compound into the stabilized alumina-and drying the alkali or alkaline earth compound-impregnated stabilized alumina. The stabilized inorganic oxide support can be regenerated at lower temperatures between 100 and 150° C. The carbon dioxide adsorption capacity of the regenerated support is between 70 and 90% of the theoretical carbon dioxide adsorption capacity.