Alkylamine functionalized metal-organic frameworks for composite gas separations

US9861953B2 · kind B2 · utility

Assignee

• The Regents of the University of California · US

Inventors

• Jeffrey R. Long · Oakland, US
• Thomas M. McDonald · Califon, US
• Deanna M. D'Alessandro · Sydney, AU

Key dates

• Filing date: Dec 8, 2016
• Grant date: Jan 9, 2018
• Expiry date: Dec 8, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02C20/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Functionalized metal-organic framework adsorbents with ligands containing basic nitrogen groups such as alkylamines and alkyldiamines appended to the metal centers and method of isolating carbon dioxide from a stream of combined gases and carbon dioxide partial pressures below approximately 1 and 1000 mbar. The adsorption material has an isosteric heat of carbon dioxide adsorption of greater than −60 kJ/mol at zero coverage using a dual-site Langmuir model.