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Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance

The arrangement of catalytic layers inside the reactor is an important factor that affects the efficiency of methane steam reforming to produce hydrogen, and the traditional continuous catalytic layer structure is limited by the heat and mass transfer, resulting in unbalanced heat distribution insid...

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Autores principales: Wang, Han, Yang, Guogang, Li, Shian, Shen, Qiuwan, Li, Zheng, Chen, Biaojie
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8693868/
https://www.ncbi.nlm.nih.gov/pubmed/35424244
http://dx.doi.org/10.1039/d0ra08843a
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author Wang, Han
Yang, Guogang
Li, Shian
Shen, Qiuwan
Li, Zheng
Chen, Biaojie
author_facet Wang, Han
Yang, Guogang
Li, Shian
Shen, Qiuwan
Li, Zheng
Chen, Biaojie
author_sort Wang, Han
collection PubMed
description The arrangement of catalytic layers inside the reactor is an important factor that affects the efficiency of methane steam reforming to produce hydrogen, and the traditional continuous catalytic layer structure is limited by the heat and mass transfer, resulting in unbalanced heat distribution inside the reactor and poor reaction performance. In order to improve the performance of methane reforming and balance the internal temperature of the reactor, different catalytic layers were designed based on 2D numerical simulation, and different numbers of discrete catalytic layers were modeled to compare the heat and mass transfer, methane conversion rate and hydrogen yield between the walls and inside the reactor. The results show that the increase in the number of catalyst gaps improves the temperature gradient inside the reactor, reduces the average cold point temperature difference inside the reactor by up to 7.2%, maintains a better thermal balance inside the reactor, improves the reaction rate inside the reactor, and the methane conversion rate and hydrogen yield after the reaction have been improved by 28.46% and 12.7% respectively.
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spelling pubmed-86938682022-04-13 Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance Wang, Han Yang, Guogang Li, Shian Shen, Qiuwan Li, Zheng Chen, Biaojie RSC Adv Chemistry The arrangement of catalytic layers inside the reactor is an important factor that affects the efficiency of methane steam reforming to produce hydrogen, and the traditional continuous catalytic layer structure is limited by the heat and mass transfer, resulting in unbalanced heat distribution inside the reactor and poor reaction performance. In order to improve the performance of methane reforming and balance the internal temperature of the reactor, different catalytic layers were designed based on 2D numerical simulation, and different numbers of discrete catalytic layers were modeled to compare the heat and mass transfer, methane conversion rate and hydrogen yield between the walls and inside the reactor. The results show that the increase in the number of catalyst gaps improves the temperature gradient inside the reactor, reduces the average cold point temperature difference inside the reactor by up to 7.2%, maintains a better thermal balance inside the reactor, improves the reaction rate inside the reactor, and the methane conversion rate and hydrogen yield after the reaction have been improved by 28.46% and 12.7% respectively. The Royal Society of Chemistry 2021-01-13 /pmc/articles/PMC8693868/ /pubmed/35424244 http://dx.doi.org/10.1039/d0ra08843a Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Wang, Han
Yang, Guogang
Li, Shian
Shen, Qiuwan
Li, Zheng
Chen, Biaojie
Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title_full Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title_fullStr Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title_full_unstemmed Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title_short Numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
title_sort numerical study on the effect of discrete catalytic layer arrangement on methane steam reforming performance
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8693868/
https://www.ncbi.nlm.nih.gov/pubmed/35424244
http://dx.doi.org/10.1039/d0ra08843a
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