High capacity carbon dioxide sorbent

Dietz, Steven Dean; Alptekin, Gokhan; Jayaraman, Ambalavanan

Title: High capacity carbon dioxide sorbent

Patent · Tue Sep 01 00:00:00 EDT 2015

OSTI ID:1213459

Dietz, Steven Dean; Alptekin, Gokhan; Jayaraman, Ambalavanan

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.

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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

Resource Relation:: Patent File Date: 2014 Mar 17

Country of Publication:: United States

Language:: English

References (15)

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