Practical method of CO.sub.2 sequestration
Abstract
A process and device to capture of CO.sub.2 at its originating source, such as a power plant, is disclosed. Absorbent material is recharged by desorbing CO.sub.2, so that it may be sequestered or used in another application. Continual recharging results in loss of absorbent surface area, due to pore plugging and sintering of particles. Calcium oxide or calcium hydroxide was immobilized to a fibrous ceramic-based fabric substrate as a thin film and sintered, creating an absorbent material. The samples were characterized, showing continuous cyclic carbonation conversions between about 62% and 75% under mild calcination conditions at 750.degree. C. and no CO.sub.2 in N.sub.2. Under the more severe calcination condition at 850.degree. C. and 20 wt % CO.sub.2 in N.sub.2, yttria fabric was superior to alumina as a substrate for carbon dioxide capture and the reactivity of the calcium oxide absorbent immobilized to yttria was maintained at the same level in the 12 cycles.
- Inventors:
-
- Gainesville, FL
- Houston, TX
- Tampa, FL
- Issue Date:
- Research Org.:
- University of South Florida (Tampa, FL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1018064
- Patent Number(s):
- 7896953
- Application Number:
- 12/335,049
- Assignee:
- University of South Florida (Tampa, FL)
- 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:
- FC36-04GO14224
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 03 NATURAL GAS
Citation Formats
Goswami, D Yogi, Lee, Man Su, Kothurkar, Nikhil K, and Stefanakos, Elias K. Practical method of CO.sub.2 sequestration. United States: N. p., 2011.
Web.
Goswami, D Yogi, Lee, Man Su, Kothurkar, Nikhil K, & Stefanakos, Elias K. Practical method of CO.sub.2 sequestration. United States.
Goswami, D Yogi, Lee, Man Su, Kothurkar, Nikhil K, and Stefanakos, Elias K. Tue .
"Practical method of CO.sub.2 sequestration". United States. https://www.osti.gov/servlets/purl/1018064.
@article{osti_1018064,
title = {Practical method of CO.sub.2 sequestration},
author = {Goswami, D Yogi and Lee, Man Su and Kothurkar, Nikhil K and Stefanakos, Elias K},
abstractNote = {A process and device to capture of CO.sub.2 at its originating source, such as a power plant, is disclosed. Absorbent material is recharged by desorbing CO.sub.2, so that it may be sequestered or used in another application. Continual recharging results in loss of absorbent surface area, due to pore plugging and sintering of particles. Calcium oxide or calcium hydroxide was immobilized to a fibrous ceramic-based fabric substrate as a thin film and sintered, creating an absorbent material. The samples were characterized, showing continuous cyclic carbonation conversions between about 62% and 75% under mild calcination conditions at 750.degree. C. and no CO.sub.2 in N.sub.2. Under the more severe calcination condition at 850.degree. C. and 20 wt % CO.sub.2 in N.sub.2, yttria fabric was superior to alumina as a substrate for carbon dioxide capture and the reactivity of the calcium oxide absorbent immobilized to yttria was maintained at the same level in the 12 cycles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 01 00:00:00 EST 2011},
month = {Tue Mar 01 00:00:00 EST 2011}
}