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

doi:10.1039/d0ra08843a

Cited by 3 publications

(1 citation statement)

References 27 publications

(29 reference statements)

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“…Methane steam reformers with three different wall-coated catalyst layer patterns were presented, and the corresponding thermal behavior and the reaction kinetics were analyzed by Settar et al (2015). Recently, the effect of discrete catalytic layer arrangement on methane steam reforming performance has been studied by Wang et al (2021). The heat and mass transport processes inside different reactors were investigated and compared in detail.…”

Section: Introductionmentioning

confidence: 99%

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

Yang

Liu

et al. 2022

HFF

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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.

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Section: Introductionmentioning

confidence: 99%

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

Yang

Liu

et al. 2022

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Process and Reactor Consideration for Syngas Production From Natural Gas Steam Reforming

Lima Rei Ramos e Silva,

Rego de Vasconcelos

2024

Reference Module in Chemistry, Molecular Sciences and Chemical Engineering

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Simulation of Sorption-Enhanced Steam Methane Reforming over Ni-Based Catalyst in a Pressurized Dual Fluidized Bed Reactor

Yan

Sui

et al. 2023

Inorganics

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Steam methane reforming is a major method of hydrogen production. However, this method usually suffers from low energy efficiency and high carbon-emission intensity. To solve this issue, a novel steam-methane-reforming process over a Ni-based catalyst in a pressurized dual fluidized bed reactor is proposed in this work. A three-dimensional computational fluid dynamics (CFD) model for the complex physicochemical process was built to study the reforming characteristics. The model was first validated against the reported data in terms of hydrodynamics and reaction kinetics. Next, the performance of the proposed methane-steam-reforming process was predicted. It was found that the methane-conversion ratio was close to 100%. The mole fraction of H2 in the dry-yield syngas reached 98.8%, the cold gas efficiency reached 98.5%, and the carbon-capture rate reached 96.4%. It is believed that the proposed method can be used for methane reforming with high efficiency and low carbon intensity.

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

Abstract: The performance of methane reforming reaction can be improved by increasing the number of discrete catalytic layer gaps in the reactor.

Cited by 3 publications

References 27 publications

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

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

Process and Reactor Consideration for Syngas Production From Natural Gas Steam Reforming

Simulation of Sorption-Enhanced Steam Methane Reforming over Ni-Based Catalyst in a Pressurized Dual Fluidized Bed Reactor

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