Guanidine compounds for carbon dioxide capture
Abstract
A method for removing carbon dioxide from a gaseous source, the method comprising: (i) contacting said gaseous source with an aqueous solution of a carbon dioxide sorbent that reacts with carbon dioxide to form an aqueous-soluble carbonate or bicarbonate salt of said carbon dioxide sorbent; (ii) contacting the aqueous solution from step (i) with a bis-iminoguanidine carbon dioxide complexing compound, which is different from the carbon dioxide sorbent, to result in precipitation of a carbonate or bicarbonate salt of said carbon dioxide complexing compound and regeneration of the carbon dioxide sorbent; and (iii) removing the precipitated carbonate or bicarbonate salt from the aqueous solution in step (ii) to result in a solid form of said carbonate or bicarbonate salt of the carbon dioxide complexing compound. The method may further include a step (iv) of regenerating the carbon dioxide complexing compound by subjecting the precipitated salt to sufficient heat and/or vacuum.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1637853
- Patent Number(s):
- 10583387
- Application Number:
- 15/978,323
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/14/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Custelcean, Radu, Williams, Neil Justin, and Seipp, Charles Aaron. Guanidine compounds for carbon dioxide capture. United States: N. p., 2020.
Web.
Custelcean, Radu, Williams, Neil Justin, & Seipp, Charles Aaron. Guanidine compounds for carbon dioxide capture. United States.
Custelcean, Radu, Williams, Neil Justin, and Seipp, Charles Aaron. Tue .
"Guanidine compounds for carbon dioxide capture". United States. https://www.osti.gov/servlets/purl/1637853.
@article{osti_1637853,
title = {Guanidine compounds for carbon dioxide capture},
author = {Custelcean, Radu and Williams, Neil Justin and Seipp, Charles Aaron},
abstractNote = {A method for removing carbon dioxide from a gaseous source, the method comprising: (i) contacting said gaseous source with an aqueous solution of a carbon dioxide sorbent that reacts with carbon dioxide to form an aqueous-soluble carbonate or bicarbonate salt of said carbon dioxide sorbent; (ii) contacting the aqueous solution from step (i) with a bis-iminoguanidine carbon dioxide complexing compound, which is different from the carbon dioxide sorbent, to result in precipitation of a carbonate or bicarbonate salt of said carbon dioxide complexing compound and regeneration of the carbon dioxide sorbent; and (iii) removing the precipitated carbonate or bicarbonate salt from the aqueous solution in step (ii) to result in a solid form of said carbonate or bicarbonate salt of the carbon dioxide complexing compound. The method may further include a step (iv) of regenerating the carbon dioxide complexing compound by subjecting the precipitated salt to sufficient heat and/or vacuum.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {3}
}
Works referenced in this record:
Selective oxoanion separation using a tripodal ligand
patent, February 2016
- Custelcean, Radu; Moyer, Bruce A.; Rajbanshi, Arbin
- US Patent Document 9,260,326
Systems and methods for extraction of carbon dioxide from air
patent, August 2012
- Lackner, Klaus S.; Zeman, Frank S.
- US Patent Document 8,246,731
Method for the purification of sewage waters which contain organic compounds of an anionic nature
patent, October 1978
- Fusco, Raffaello
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