skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: CO 2-H 2O capture and cyclability on sodium cobaltate at low temperatures (30-80 ºC); experimental and theoretical analysis

Abstract

Sodium cobaltate (NaCoO2) was analyzed for CO 2 cyclic carbonation-decarbonation process at low temperatures (30–80 ºC) with relative humidity (RH) values between 0 and 80 %, using water vapor as catalytic intermediate. The presence of H 2O clearly enhanced the CO 2 capture at T < 100 °C, compared to dry conditions, where the amount of CO 2 captured increased as a function of relative humidity. These improvements were attributed to NaHCO 3 and Na 2CO 3 formation during carbonation. In the NaHCO 3 case, water vapor becomes part of carbonation, favoring reactivity. After the carbonation analysis, decarbonation process was analyzed using a N 2 flow, where results evidenced that only NaHCO 3 decomposition took place at low temperatures, producing NaOH and CO 2. This result indicates that NaCoO 2 can be partially regenerated, suggesting a possible CO 2 cyclic carbonation. CO 2 carbonation–decarbonation tests were performed, confirming cyclic capacity and stability. Moreover, NaCoO 2 sample was modified adding different transition metals (Fe, Cu and Ni), trying to improve CO 2-H 2O sorption under similar physicochemical conditions. Results indicated that Fe-containing samples presented the best properties. Lastly, CO 2 partial pressure effect was analyzed on NaCoO 2 and Fe-containing samplesmore » using similar relative humidities.« less

Authors:
 [1];  [2];  [1]
  1. Univ. Nacional Autonoma de Mexico, Ciudad de Mexico (Mexico)
  2. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1471383
Report Number(s):
NETL-PUB-21759
Journal ID: ISSN 2194-4288
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Energy Technology
Additional Journal Information:
Journal Volume: 7; Journal Issue: 3; Journal ID: ISSN 2194-4288
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; CO2 capture and cyclability; sodium cobaltate sorbent; water vapor addition; thermogravimetric analysis (TGA); Density functional theory calculation

Citation Formats

Vera, Elizabeth, Duan, Yuhua, and Pfeiffer, Heriberto. CO2-H2O capture and cyclability on sodium cobaltate at low temperatures (30-80 ºC); experimental and theoretical analysis. United States: N. p., 2018. Web. doi:10.1002/ente.201800527.
Vera, Elizabeth, Duan, Yuhua, & Pfeiffer, Heriberto. CO2-H2O capture and cyclability on sodium cobaltate at low temperatures (30-80 ºC); experimental and theoretical analysis. United States. doi:10.1002/ente.201800527.
Vera, Elizabeth, Duan, Yuhua, and Pfeiffer, Heriberto. Mon . "CO2-H2O capture and cyclability on sodium cobaltate at low temperatures (30-80 ºC); experimental and theoretical analysis". United States. doi:10.1002/ente.201800527.
@article{osti_1471383,
title = {CO2-H2O capture and cyclability on sodium cobaltate at low temperatures (30-80 ºC); experimental and theoretical analysis},
author = {Vera, Elizabeth and Duan, Yuhua and Pfeiffer, Heriberto},
abstractNote = {Sodium cobaltate (NaCoO2) was analyzed for CO2 cyclic carbonation-decarbonation process at low temperatures (30–80 ºC) with relative humidity (RH) values between 0 and 80 %, using water vapor as catalytic intermediate. The presence of H2O clearly enhanced the CO2 capture at T < 100 °C, compared to dry conditions, where the amount of CO2 captured increased as a function of relative humidity. These improvements were attributed to NaHCO3 and Na2CO3 formation during carbonation. In the NaHCO3 case, water vapor becomes part of carbonation, favoring reactivity. After the carbonation analysis, decarbonation process was analyzed using a N2 flow, where results evidenced that only NaHCO3 decomposition took place at low temperatures, producing NaOH and CO2. This result indicates that NaCoO2 can be partially regenerated, suggesting a possible CO2 cyclic carbonation. CO2 carbonation–decarbonation tests were performed, confirming cyclic capacity and stability. Moreover, NaCoO2 sample was modified adding different transition metals (Fe, Cu and Ni), trying to improve CO2-H2O sorption under similar physicochemical conditions. Results indicated that Fe-containing samples presented the best properties. Lastly, CO2 partial pressure effect was analyzed on NaCoO2 and Fe-containing samples using similar relative humidities.},
doi = {10.1002/ente.201800527},
journal = {Energy Technology},
issn = {2194-4288},
number = 3,
volume = 7,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on August 20, 2019
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Novel Polyethylenimine-Modified Mesoporous Molecular Sieve of MCM-41 Type as High-Capacity Adsorbent for CO2 Capture
journal, November 2002

  • Xu, Xiaochun; Song, Chunshan; Andresen, John M.
  • Energy & Fuels, Vol. 16, Issue 6, p. 1463-1469
  • DOI: 10.1021/ef020058u

The dry carbonate process: Carbon dioxide recovery from power plant flue gas
journal, February 2009


Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set
journal, July 1996


Adsorbent Materials for Carbon Dioxide Capture from Large Anthropogenic Point Sources
journal, September 2009

  • Choi, Sunho; Drese, Jeffrey?H.; Jones, Christopher?W.
  • ChemSusChem, Vol. 2, Issue 9, p. 796-854
  • DOI: 10.1002/cssc.200900036

Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996


Metal?Organic Frameworks with Exceptionally High Capacity for Storage of Carbon Dioxide at Room Temperature
journal, December 2005

  • Millward, Andrew R.; Yaghi, Omar M.
  • Journal of the American Chemical Society, Vol. 127, Issue 51, p. 17998-17999
  • DOI: 10.1021/ja0570032