Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

High capacity carbon dioxide sorbent

Patent ·
OSTI ID:1213459
; ;
The present invention provides a sorbent for the removal of carbon dioxide from gas streams, comprising: a CO.sub.2 capacity of at least 9 weight percent when measured at 22.degree. C. and 1 atmosphere; an H.sub.2O capacity of at most 15 weight percent when measured at 25.degree. C. and 1 atmosphere; and an isosteric heat of adsorption of from 5 to 8.5 kilocalories per mole of CO.sub.2. The invention also provides a carbon sorbent in a powder, a granular or a pellet form for the removal of carbon dioxide from gas streams, comprising: a carbon content of at least 90 weight percent; a nitrogen content of at least 1 weight percent; an oxygen content of at most 3 weight percent; a BET surface area from 50 to 2600 m.sup.2/g; and a DFT micropore volume from 0.04 to 0.8 cc/g.
Research Organization:
TDA Research, Inc., Wheat Ridge, CO (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0006239;
Assignee:
TDA Research, Inc. (Wheat Ridge, CO)
Patent Number(s):
9,120,079
Application Number:
14/217,218
OSTI ID:
1213459
Country of Publication:
United States
Language:
English

References (4)

Effects of activated carbon surface chemistry and pore structure on the adsorption of organic contaminants from aqueous solution journal January 2002
A new model for calculating the adsorption equilibrium constant of water vapor in micropores of activated carbon journal June 2014
Characterization and application of activated carbon produced by H3PO4 and water vapor activation journal October 2006
Adsorption of CO 2 on Activated Carbon:  Simultaneous Determination of Integral Heat and Isotherm of Adsorption journal January 1996

Similar Records

Related Subjects

54 ENVIRONMENTAL SCIENCES