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Title: Chemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review

Abstract

Chemical-looping technology is one of the promising CO2 capture technologies. It generates a CO2 enriched flue gas, which will greatly benefit CO2 capture, utilization or sequestration. Both chemical-looping combustion (CLC) and chemical-looping gasification (CLG) have the potential to be used to generate power, chemicals, and liquid fuels. Chemical-looping is an oxygen transporting process using oxygen carriers. Recently, attention has focused on solid fuels such as coal. Coal chemical-looping reactions are more complicated than gaseous fuels due to coal properties (like mineral matter) and the complex reaction pathways involving solid fuels. The mineral matter/ash and sulfur in coal may affect the activity of oxygen carriers. Oxygen carriers are the key issue in chemical-looping processes. Thermogravimetric analysis (TGA) has been widely used for the development of oxygen carriers (e.g., oxide reactivity). Two proposed processes for the CLC of solid fuels are in-situ Gasification Chemical-Looping Combustion (iG-CLC) and Chemical-Looping with Oxygen Uncoupling (CLOU). The objectives of this review are to discuss various chemical-looping processes with coal, summarize TGA applications in oxygen carrier development, and outline the major challenges associated with coal chemical-looping in iG-CLC and CLOU.

Authors:
 [1];  [2];  [3];  [3];  [1]
  1. National Energy Technology Lab. (NETL), Pittsburgh, PA, (United States)
  2. AECOM, Pittsburgh, PA (United States)
  3. National Energy Technology Lab. (NETL), Morgantown, WV (United States)
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
Sponsoring Org.:
USDOE
OSTI Identifier:
1400240
Report Number(s):
NETL-PUB-20103
Journal ID: ISSN 1996-1073; ENERGA; PII: en81010605
Resource Type:
Accepted Manuscript
Journal Name:
Energies (Basel)
Additional Journal Information:
Journal Name: Energies (Basel); Journal Volume: 8; Journal Issue: 10; Journal ID: ISSN 1996-1073
Publisher:
MDPI AG
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 09 BIOMASS FUELS; 08 HYDROGEN; 20 FOSSIL-FUELED POWER PLANTS; 42 ENGINEERING; chemical-looping combustion; chemical-looping gasification; coal; solid fuels; oxygen-carriers; thermogravimetric analysis (TGA)

Citation Formats

Wang, Ping, Means, Nicholas, Shekhawat, Dushyant, Berry, David, and Massoudi, Mehrdad. Chemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review. United States: N. p., 2015. Web. doi:10.3390/en81010605.
Wang, Ping, Means, Nicholas, Shekhawat, Dushyant, Berry, David, & Massoudi, Mehrdad. Chemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review. United States. doi:10.3390/en81010605.
Wang, Ping, Means, Nicholas, Shekhawat, Dushyant, Berry, David, and Massoudi, Mehrdad. Thu . "Chemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review". United States. doi:10.3390/en81010605. https://www.osti.gov/servlets/purl/1400240.
@article{osti_1400240,
title = {Chemical-Looping Combustion and Gasification of Coals and Oxygen Carrier Development: A Brief Review},
author = {Wang, Ping and Means, Nicholas and Shekhawat, Dushyant and Berry, David and Massoudi, Mehrdad},
abstractNote = {Chemical-looping technology is one of the promising CO2 capture technologies. It generates a CO2 enriched flue gas, which will greatly benefit CO2 capture, utilization or sequestration. Both chemical-looping combustion (CLC) and chemical-looping gasification (CLG) have the potential to be used to generate power, chemicals, and liquid fuels. Chemical-looping is an oxygen transporting process using oxygen carriers. Recently, attention has focused on solid fuels such as coal. Coal chemical-looping reactions are more complicated than gaseous fuels due to coal properties (like mineral matter) and the complex reaction pathways involving solid fuels. The mineral matter/ash and sulfur in coal may affect the activity of oxygen carriers. Oxygen carriers are the key issue in chemical-looping processes. Thermogravimetric analysis (TGA) has been widely used for the development of oxygen carriers (e.g., oxide reactivity). Two proposed processes for the CLC of solid fuels are in-situ Gasification Chemical-Looping Combustion (iG-CLC) and Chemical-Looping with Oxygen Uncoupling (CLOU). The objectives of this review are to discuss various chemical-looping processes with coal, summarize TGA applications in oxygen carrier development, and outline the major challenges associated with coal chemical-looping in iG-CLC and CLOU.},
doi = {10.3390/en81010605},
journal = {Energies (Basel)},
number = 10,
volume = 8,
place = {United States},
year = {2015},
month = {9}
}

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