Solid sorbents for removal of carbon dioxide from gas streams at low temperatures
Patent
·
OSTI ID:949195
New low-cost CO.sub.2 sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine and/or an ether so that the amine and/or ether comprise at least 50 wt. percent of the sorbent. The sorbent acts by capturing compounds contained in gaseous fluids via chemisorption and/or physisorption between the unit layers of the substrate's lattice where the polar amine liquids and solids and/or polar ether liquids and solids are located. The method eliminates the need for high surface area supports and polymeric materials for the preparation of CO.sub.2 capture systems, and provides sorbents with absorption capabilities that are independent of the sorbents' surface areas. The sorbents can be regenerated by heating at temperatures in excess of 35.degree. C.
- Research Organization:
- United States Department of Energy, Washington, DC (United States)
- Sponsoring Organization:
- USDOE
- Assignee:
- The United States of America as represented by the Department of Energy (Washington, DC)
- Patent Number(s):
- 6,908,497
- Application Number:
- 10/420,713
- OSTI ID:
- 949195
- Country of Publication:
- United States
- Language:
- English
Reversible adsorption of carbon dioxide on amine surface-bonded silica gel
|
journal | December 1995 |
Similar Records
Amine enriched solid sorbents for carbon dioxide capture
Regenerable sorbent technique for capturing CO.sub.2 using immobilized amine sorbents
Method of preparation of a CO.sub.2 removal sorbent with high chemical stability during multiple cycles
Patent
·
Tue Apr 15 00:00:00 EDT 2003
·
OSTI ID:921348
Regenerable sorbent technique for capturing CO.sub.2 using immobilized amine sorbents
Patent
·
Tue Aug 06 00:00:00 EDT 2013
·
OSTI ID:1089416
Method of preparation of a CO.sub.2 removal sorbent with high chemical stability during multiple cycles
Patent
·
Tue Jul 14 00:00:00 EDT 2015
·
OSTI ID:1193395