Carbon pyrolyzate adsorbent having utility for CO2 capture and methods of making and using the same
US9156020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2015 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Mar 28, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A particulate form carbon pyrolyzate adsorbent, having the following characteristics: (a) CO2 capacity greater than 105 cc/gram at one bar pressure and temperature of 273° Kelvin; (b) CO2 Working Capacity greater than 7.0 weight percent; (c) CO2 heats of adsorption and desorption each of which is in a range of from 10 to 50 kJ/mole; and (d) a CO2/N2 Henry's Law Separation Factor greater than 5. The carbon pyrolyzate material can be formed from a polyvinylidene chloride-based polymer or copolymer, or other suitable resin material, to provide an adsorbent that is useful for carbon dioxide capture applications, e.g., in treatment of flue gases from coal-fired power generation plants.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.