Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Analysis of heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions for hydrogen production

Li, Shian LU ; Yang, Zhi ; Liu, Yihui ; Shen, Qiuwan LU ; Yang, Guogang LU and Sunden, Bengt Ake LU (2022) In International Journal of Numerical Methods for Heat and Fluid Flow 32(10). p.3191-3209
Abstract

Purpose: The purpose of this paper is to investigate the heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions. Design/methodology/approach: A two-dimensional model is developed to study the heat and mass transport characteristics in microchannel reactors. The heat and mass transport processes in the microchannel reactors with non-uniform catalyst distribution in the catalytic combustion channel are also studied. Findings: The simulated results are compared in terms of the distributions of species mole fraction, temperature and reaction rate for the conventional and new designed reactors. It is found that the chemical reaction, heat and mass transport processes are significantly... (More)

Purpose: The purpose of this paper is to investigate the heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions. Design/methodology/approach: A two-dimensional model is developed to study the heat and mass transport characteristics in microchannel reactors. The heat and mass transport processes in the microchannel reactors with non-uniform catalyst distribution in the catalytic combustion channel are also studied. Findings: The simulated results are compared in terms of the distributions of species mole fraction, temperature and reaction rate for the conventional and new designed reactors. It is found that the chemical reaction, heat and mass transport processes are significantly affected and the maximum temperature in the reactor is also greatly reduced when a non-uniform catalyst distribution is applied in the combustion catalyst layer. Practical implications: This study can improve the understanding of the transportation characteristics in microchannel reactors with non-uniform catalyst distributions and provide guidance for the design of microchannel reactors. Originality/value: The design of microchannel reactors with non-uniform catalyst distributions can be used in methane steam reforming to reduce the maximum temperature inside the reactor.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Catalyst distribution, Methane steam reforming, Microchannel reactor, Temperature distribution
in
International Journal of Numerical Methods for Heat and Fluid Flow
volume
32
issue
10
pages
19 pages
publisher
Emerald Group Publishing Limited
external identifiers
  • scopus:85124342499
ISSN
0961-5539
DOI
10.1108/HFF-12-2021-0773
language
English
LU publication?
yes
additional info
Funding Information: Funding: Dalian City Innovative Support Program for High-Level Talents (No. 2019RQ036). China Postdoctoral Science Foundation (No. 2019M651097 and No. 2019M651094). Natural Science Foundation of Liaoning Province (No. 2020-HYLH-38). National Natural Science Foundation of China (52001045). Publisher Copyright: © 2022, Shian Li, Zhi Yang, Yihui Liu, Qiuwan Shen, Guogang Yang and Bengt Ake Sunden.
id
58903038-4a53-4e32-9260-9e2eda1febec
date added to LUP
2022-12-29 13:10:32
date last changed
2023-11-21 15:00:33
@article{58903038-4a53-4e32-9260-9e2eda1febec,
  abstract     = {{<p>Purpose: The purpose of this paper is to investigate the heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions. Design/methodology/approach: A two-dimensional model is developed to study the heat and mass transport characteristics in microchannel reactors. The heat and mass transport processes in the microchannel reactors with non-uniform catalyst distribution in the catalytic combustion channel are also studied. Findings: The simulated results are compared in terms of the distributions of species mole fraction, temperature and reaction rate for the conventional and new designed reactors. It is found that the chemical reaction, heat and mass transport processes are significantly affected and the maximum temperature in the reactor is also greatly reduced when a non-uniform catalyst distribution is applied in the combustion catalyst layer. Practical implications: This study can improve the understanding of the transportation characteristics in microchannel reactors with non-uniform catalyst distributions and provide guidance for the design of microchannel reactors. Originality/value: The design of microchannel reactors with non-uniform catalyst distributions can be used in methane steam reforming to reduce the maximum temperature inside the reactor.</p>}},
  author       = {{Li, Shian and Yang, Zhi and Liu, Yihui and Shen, Qiuwan and Yang, Guogang and Sunden, Bengt Ake}},
  issn         = {{0961-5539}},
  keywords     = {{Catalyst distribution; Methane steam reforming; Microchannel reactor; Temperature distribution}},
  language     = {{eng}},
  month        = {{08}},
  number       = {{10}},
  pages        = {{3191--3209}},
  publisher    = {{Emerald Group Publishing Limited}},
  series       = {{International Journal of Numerical Methods for Heat and Fluid Flow}},
  title        = {{Analysis of heat and mass transport characteristics in microchannel reactors with non-uniform catalyst distributions for hydrogen production}},
  url          = {{http://dx.doi.org/10.1108/HFF-12-2021-0773}},
  doi          = {{10.1108/HFF-12-2021-0773}},
  volume       = {{32}},
  year         = {{2022}},
}