Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes

This paper contains the results of research on a promising combustion technology known as chemical looping combustion (CLC) and chemical looping with oxygen uncoupling (CLOU). The remarkable advantages of CLC are, among others, that concentrated CO<sub>2</sub> stream can be obtained afte...

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Autores principales:	Ewelina Ksepko, Rafal Lysowski
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	iron-manganese mixed metal oxygen carrier CLOU CLC Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/5b2cb371e2e149ac85715da7974b17b7
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spelling	oai:doaj.org-article:5b2cb371e2e149ac85715da7974b17b72021-11-25T17:05:26ZExtremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes10.3390/catal111112852073-4344https://doaj.org/article/5b2cb371e2e149ac85715da7974b17b72021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4344/11/11/1285https://doaj.org/toc/2073-4344This paper contains the results of research on a promising combustion technology known as chemical looping combustion (CLC) and chemical looping with oxygen uncoupling (CLOU). The remarkable advantages of CLC are, among others, that concentrated CO<sub>2</sub> stream can be obtained after water condensation without any energy penalty for its separation or significant decrease of NO<sub>x</sub> emissions. The objective of this work was to prepare a novel bi-metallic Fe–Mn supported on ZrO<sub>2</sub> oxygen carriers. Performance of these carriers for the CLOU and CLC process with nitrogen/air and hard coal/air was evaluated. One-cycle CLC tests were conducted with supported Fe–Mn oxygen carriers in thermogravimetric analyzer utilizing hard coal as a fuel. The effects of the oxygen carrier chemical composition and process temperature on the reaction rates were determined. Our study proved that for CLOU, properties formation of bixbyite and spinel forms are responsible. Among iron ferrites, we concluded that iron-rich compounds such as Fe<sub>2</sub>MnO<sub>4</sub> over FeMn<sub>2</sub>O<sub>4</sub> spinel type oxides are more effective for CLOU applications.Ewelina KsepkoRafal LysowskiMDPI AGarticleiron-manganesemixed metal oxygen carrierCLOUCLCChemical technologyTP1-1185ChemistryQD1-999ENCatalysts, Vol 11, Iss 1285, p 1285 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	iron-manganese mixed metal oxygen carrier CLOU CLC Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	iron-manganese mixed metal oxygen carrier CLOU CLC Chemical technology TP1-1185 Chemistry QD1-999 Ewelina Ksepko Rafal Lysowski Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
description	This paper contains the results of research on a promising combustion technology known as chemical looping combustion (CLC) and chemical looping with oxygen uncoupling (CLOU). The remarkable advantages of CLC are, among others, that concentrated CO<sub>2</sub> stream can be obtained after water condensation without any energy penalty for its separation or significant decrease of NO<sub>x</sub> emissions. The objective of this work was to prepare a novel bi-metallic Fe–Mn supported on ZrO<sub>2</sub> oxygen carriers. Performance of these carriers for the CLOU and CLC process with nitrogen/air and hard coal/air was evaluated. One-cycle CLC tests were conducted with supported Fe–Mn oxygen carriers in thermogravimetric analyzer utilizing hard coal as a fuel. The effects of the oxygen carrier chemical composition and process temperature on the reaction rates were determined. Our study proved that for CLOU, properties formation of bixbyite and spinel forms are responsible. Among iron ferrites, we concluded that iron-rich compounds such as Fe<sub>2</sub>MnO<sub>4</sub> over FeMn<sub>2</sub>O<sub>4</sub> spinel type oxides are more effective for CLOU applications.
format	article
author	Ewelina Ksepko Rafal Lysowski
author_facet	Ewelina Ksepko Rafal Lysowski
author_sort	Ewelina Ksepko
title	Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
title_short	Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
title_full	Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
title_fullStr	Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
title_full_unstemmed	Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes
title_sort	extremely stable and durable mixed fe–mn oxides supported on zro<sub>2</sub> for practical utilization in clou and clc processes
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/5b2cb371e2e149ac85715da7974b17b7
work_keys_str_mv	AT ewelinaksepko extremelystableanddurablemixedfemnoxidessupportedonzrosub2subforpracticalutilizationinclouandclcprocesses AT rafallysowski extremelystableanddurablemixedfemnoxidessupportedonzrosub2subforpracticalutilizationinclouandclcprocesses
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Extremely Stable and Durable Mixed Fe–Mn Oxides Supported on ZrO<sub>2</sub> for Practical Utilization in CLOU and CLC Processes

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