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Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction
CO(2) methanation is a promising technology to enable the use of CO(2) as a resource. Thermal control of CO(2) methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase chang...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8024387/ https://www.ncbi.nlm.nih.gov/pubmed/33824354 http://dx.doi.org/10.1038/s41598-021-86117-1 |
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author | Takahashi, Tatsuya Koide, Hiroaki Sakai, Hiroki Ajito, Daisuke Kurniawan, Ade Kunisada, Yuji Nomura, Takahiro |
author_facet | Takahashi, Tatsuya Koide, Hiroaki Sakai, Hiroki Ajito, Daisuke Kurniawan, Ade Kunisada, Yuji Nomura, Takahiro |
author_sort | Takahashi, Tatsuya |
collection | PubMed |
description | CO(2) methanation is a promising technology to enable the use of CO(2) as a resource. Thermal control of CO(2) methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase change material (PCM) for thermal control of the reaction is a novel passive approach. In this study a novel structure was developed, wherein catalysts were directly loaded onto a micro-encapsulated PCM (MEPCM). The MEPCM was prepared in three steps consisting of a boehmite treatment, precipitation treatment, and heat oxidation treatment, and an impregnation process was adopted to prepare a Ni catalyst. The catalyst-loaded MEPCM did not show any breakage or deformation of the capsule or a decrease in the heat storage capacity after the impregnation treatment. MEPCM demonstrated a higher potential as an alternative catalyst support in CO(2) methanation than the commercially available α-Al(2)O(3) particle. In addition, the heat storage capacity of the catalyst-loaded MEPCM suppressed the temperature rise of the catalyst bed at a high heat absorption rate (2.5 MW m(−3)). In conclusion, the catalyst-loaded MEPCM is a high-speed, high-precision thermal control device because of its high-density energy storage and resolution of a spatial gap between the catalyst and cooling devices. This novel concept has the potential to overcome the technical challenges faced by efficiency enhancement of industrial chemical reactions. |
format | Online Article Text |
id | pubmed-8024387 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-80243872021-04-08 Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction Takahashi, Tatsuya Koide, Hiroaki Sakai, Hiroki Ajito, Daisuke Kurniawan, Ade Kunisada, Yuji Nomura, Takahiro Sci Rep Article CO(2) methanation is a promising technology to enable the use of CO(2) as a resource. Thermal control of CO(2) methanation, which is a highly active exothermic reaction, is important to avoid thermal runaway and subsequent degradation of the catalyst. Using the heat storage capacity of a phase change material (PCM) for thermal control of the reaction is a novel passive approach. In this study a novel structure was developed, wherein catalysts were directly loaded onto a micro-encapsulated PCM (MEPCM). The MEPCM was prepared in three steps consisting of a boehmite treatment, precipitation treatment, and heat oxidation treatment, and an impregnation process was adopted to prepare a Ni catalyst. The catalyst-loaded MEPCM did not show any breakage or deformation of the capsule or a decrease in the heat storage capacity after the impregnation treatment. MEPCM demonstrated a higher potential as an alternative catalyst support in CO(2) methanation than the commercially available α-Al(2)O(3) particle. In addition, the heat storage capacity of the catalyst-loaded MEPCM suppressed the temperature rise of the catalyst bed at a high heat absorption rate (2.5 MW m(−3)). In conclusion, the catalyst-loaded MEPCM is a high-speed, high-precision thermal control device because of its high-density energy storage and resolution of a spatial gap between the catalyst and cooling devices. This novel concept has the potential to overcome the technical challenges faced by efficiency enhancement of industrial chemical reactions. Nature Publishing Group UK 2021-04-06 /pmc/articles/PMC8024387/ /pubmed/33824354 http://dx.doi.org/10.1038/s41598-021-86117-1 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Takahashi, Tatsuya Koide, Hiroaki Sakai, Hiroki Ajito, Daisuke Kurniawan, Ade Kunisada, Yuji Nomura, Takahiro Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title | Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title_full | Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title_fullStr | Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title_full_unstemmed | Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title_short | Catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
title_sort | catalyst-loaded micro-encapsulated phase change material for thermal control of exothermic reaction |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8024387/ https://www.ncbi.nlm.nih.gov/pubmed/33824354 http://dx.doi.org/10.1038/s41598-021-86117-1 |
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