Carbon dioxide sorbents for air quality control

US11229897B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Riichiro Kimura · Ludwigshafen, DE
• Mark Thomas Buelow · Phillipsburg, US
• John Kauffman · Hazlet, US
• Pascaline Tran · Holmdel, US
• Sai Ping Shum · Pleasantville, US
• Jeffrey Alan Levine · White Plains, US
• Wolfgang Ruettinger · Plainsboro, US
• David Weinberger · Philadelphia, US

Key dates

• Filing date: Feb 10, 2017
• Grant date: Jan 25, 2022
• Expiry date: Nov 9, 2038

Classification

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

Abstract

Carbon dioxide and VOC sorbents that include a porous support impregnated with an amine compound are provided. The sorbents include a gas-adsorbing material coated onto the porous support. The gas-adsorbing material includes a polyamine which is produced using a process that is free of formaldehyde as a reaction product and/or a reactant.