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Title: 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:
 [1];  [2];  [3];  [3]
  1. Gainesville, FL
  2. Houston, TX
  3. Tampa, FL
Issue Date:
Research Org.:
University of South Florida (Tampa, FL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1018064
Patent Number(s):
7,896,953
Application Number:
12/335,049
Assignee:
University of South Florida (Tampa, FL) GFO
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 = {2011},
month = {3}
}

Patent:

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