Epoxy-amine acid gas adsorption-desorption polymers and oligomers, processes for preparing same, and uses thereof
US8557027B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | May 24, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This disclosure involves an adsorption-desorption material, e.g., crosslinked epoxy-amine material having an Mw from about 500 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO2 adsorption capacity of at least about 0.2 millimoles CO2 per gram of crosslinked material, and/or linear epoxy-amine material having an Mw from about 160 to about 1×106, a total pore volume from about 0.2 cc/g to about 2.0 cc/g, and a CO2 adsorption capacity of at least about 0.2 millimoles CO2 per gram of linear material. This disclosure also involves processes for preparing the crosslinked epoxy-amine materials and linear epoxy-amine materials, as well as selective removal of CO2 and/or other acid gases from a gaseous stream using the epoxy-amine materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.