CO.sub.2 separation from low-temperature flue gases
Abstract
Two methods are provide for the separation of carbon dioxide from the flue gases. The first method utilizes a phase-separating moiety dissolved in an aqueous solution of a basic moiety to capture carbon dioxide. The second method utilizes a phase-separating moiety as a suspended solid in an aqueous solution of a basic moiety to capture carbon dioxide. The first method takes advantage of the surface-independent nature of the CO.sub.2 absorption reactions in a homogeneous aqueous system. The second method also provides permanent sequestration of the carbon dioxide. Both methods incorporate the kinetic rate enhancements of amine-based scrubbing while eliminating the need to heat the entire amine solution (80% water) in order to regenerate and release CO.sub.2. Both methods also take advantage of the low-regeneration temperatures of CO.sub.2-bearing mineral systems such as Na.sub.2CO.sub.3/NaHCO.sub.3 and K.sub.2CO.sub.3/KHCO.sub.3.
- Inventors:
-
- Irwin, PA
- Salem, MA
- Monroeville, PA
- Bethel Park, PA
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1017440
- Patent Number(s):
- 7842126
- Application Number:
- 12/241,430
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- DOE Contract Number:
- NETL
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Dilmore, Robert, Allen, Douglas, Soong, Yee, and Hedges, Sheila. CO.sub.2 separation from low-temperature flue gases. United States: N. p., 2010.
Web.
Dilmore, Robert, Allen, Douglas, Soong, Yee, & Hedges, Sheila. CO.sub.2 separation from low-temperature flue gases. United States.
Dilmore, Robert, Allen, Douglas, Soong, Yee, and Hedges, Sheila. Tue .
"CO.sub.2 separation from low-temperature flue gases". United States. https://www.osti.gov/servlets/purl/1017440.
@article{osti_1017440,
title = {CO.sub.2 separation from low-temperature flue gases},
author = {Dilmore, Robert and Allen, Douglas and Soong, Yee and Hedges, Sheila},
abstractNote = {Two methods are provide for the separation of carbon dioxide from the flue gases. The first method utilizes a phase-separating moiety dissolved in an aqueous solution of a basic moiety to capture carbon dioxide. The second method utilizes a phase-separating moiety as a suspended solid in an aqueous solution of a basic moiety to capture carbon dioxide. The first method takes advantage of the surface-independent nature of the CO.sub.2 absorption reactions in a homogeneous aqueous system. The second method also provides permanent sequestration of the carbon dioxide. Both methods incorporate the kinetic rate enhancements of amine-based scrubbing while eliminating the need to heat the entire amine solution (80% water) in order to regenerate and release CO.sub.2. Both methods also take advantage of the low-regeneration temperatures of CO.sub.2-bearing mineral systems such as Na.sub.2CO.sub.3/NaHCO.sub.3 and K.sub.2CO.sub.3/KHCO.sub.3.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 30 00:00:00 EST 2010},
month = {Tue Nov 30 00:00:00 EST 2010}
}