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Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports

Ceramic membrane method for moisture recovery from flue gas of thermal power plants is of considerable interest due to its excellent selection performance and corrosion resistance. However, manufacturing costs of commercial ceramic membranes are still relatively expensive, which promotes the develop...

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Autores principales: Cheng, Chao, Fu, Hongming, Wu, Jun, Zhang, Heng, Chen, Haiping
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7557749/
https://www.ncbi.nlm.nih.gov/pubmed/32872262
http://dx.doi.org/10.3390/membranes10090207
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author Cheng, Chao
Fu, Hongming
Wu, Jun
Zhang, Heng
Chen, Haiping
author_facet Cheng, Chao
Fu, Hongming
Wu, Jun
Zhang, Heng
Chen, Haiping
author_sort Cheng, Chao
collection PubMed
description Ceramic membrane method for moisture recovery from flue gas of thermal power plants is of considerable interest due to its excellent selection performance and corrosion resistance. However, manufacturing costs of commercial ceramic membranes are still relatively expensive, which promotes the development of new methods for preparing low-cost ceramic membranes. In this study, a method for the preparation of porous ceramic membrane supports is proposed. Low-cost fly ash from power plants is the main material of the membrane supports, and talcum is the additive. The fabrication process of the ceramic membrane supports is described in detail. The properties of the supports were fully characterized, including surface morphology, phase composition, pore diameter distribution, and porosity. The mechanical strength of the supports was measured. The obtained ceramic membrane supports displays a pore size of about 5 μm and porosity of 37.8%. Furthermore, the water recovery performance of the supports under different operating conditions was experimentally studied. The experimental results show that the recovered water flux varies with operating conditions. In the study, the maximum recovered water flux reaches 5.22 kg/(m(2)·h). The findings provide a guidance for the ceramic membrane supports application of water recovery from flue gas.
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spelling pubmed-75577492020-10-20 Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports Cheng, Chao Fu, Hongming Wu, Jun Zhang, Heng Chen, Haiping Membranes (Basel) Article Ceramic membrane method for moisture recovery from flue gas of thermal power plants is of considerable interest due to its excellent selection performance and corrosion resistance. However, manufacturing costs of commercial ceramic membranes are still relatively expensive, which promotes the development of new methods for preparing low-cost ceramic membranes. In this study, a method for the preparation of porous ceramic membrane supports is proposed. Low-cost fly ash from power plants is the main material of the membrane supports, and talcum is the additive. The fabrication process of the ceramic membrane supports is described in detail. The properties of the supports were fully characterized, including surface morphology, phase composition, pore diameter distribution, and porosity. The mechanical strength of the supports was measured. The obtained ceramic membrane supports displays a pore size of about 5 μm and porosity of 37.8%. Furthermore, the water recovery performance of the supports under different operating conditions was experimentally studied. The experimental results show that the recovered water flux varies with operating conditions. In the study, the maximum recovered water flux reaches 5.22 kg/(m(2)·h). The findings provide a guidance for the ceramic membrane supports application of water recovery from flue gas. MDPI 2020-08-28 /pmc/articles/PMC7557749/ /pubmed/32872262 http://dx.doi.org/10.3390/membranes10090207 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Cheng, Chao
Fu, Hongming
Wu, Jun
Zhang, Heng
Chen, Haiping
Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title_full Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title_fullStr Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title_full_unstemmed Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title_short Study on the Preparation and Properties of Talcum-Fly Ash Based Ceramic Membrane Supports
title_sort study on the preparation and properties of talcum-fly ash based ceramic membrane supports
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7557749/
https://www.ncbi.nlm.nih.gov/pubmed/32872262
http://dx.doi.org/10.3390/membranes10090207
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