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Title: High capacity carbon dioxide sorbent

Abstract

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.

Inventors:
; ;
Issue Date:
Research Org.:
TDA Research, Inc., Wheat Ridge, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1213459
Patent Number(s):
9120079
Application Number:
14/217,218
Assignee:
TDA Research, Inc. (Wheat Ridge, CO)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
DOE Contract Number:  
SC0006239
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Mar 17
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Dietz, Steven Dean, Alptekin, Gokhan, and Jayaraman, Ambalavanan. High capacity carbon dioxide sorbent. United States: N. p., 2015. Web.
Dietz, Steven Dean, Alptekin, Gokhan, & Jayaraman, Ambalavanan. High capacity carbon dioxide sorbent. United States.
Dietz, Steven Dean, Alptekin, Gokhan, and Jayaraman, Ambalavanan. Tue . "High capacity carbon dioxide sorbent". United States. https://www.osti.gov/servlets/purl/1213459.
@article{osti_1213459,
title = {High capacity carbon dioxide sorbent},
author = {Dietz, Steven Dean and Alptekin, Gokhan and Jayaraman, Ambalavanan},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 01 00:00:00 EDT 2015},
month = {Tue Sep 01 00:00:00 EDT 2015}
}

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A new model for calculating the adsorption equilibrium constant of water vapor in micropores of activated carbon
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