Transport characteristic study of methane steam reforming coupling methane catalytic combustion for hydrogen production

Wang, Feng; Zhou, Jing; Wang, Guoqiang

doi:10.1016/j.ijhydene.2012.05.062

Cited by 22 publications

(3 citation statements)

References 26 publications

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“…The first application is a process with few components involved in two A Technique for Kinetic Parameter Estimation in Heterogeneous Reactions reactions; these reactions are in the early stages of the production of ammonia and methanol. The first reaction is the steam reforming, which still is the main common method for producing hydrogen, carbon monoxide, or other useful products from hydrocarbon fuels such as natural gas in domestic industries [12]. The second reaction is the Water Gas Shift Reaction, which is an industrially important reaction for hydrogen production and carbon monoxide removal in various energy-related chemical operations [13][14][15].…”

Section: A Technique For Kinetic Parameter Estimation In Heterogeneou...mentioning

confidence: 99%

A Systematic Technique for Kinetic Parameter Estimation in Heterogeneous Solid Catalytic Reaction Networks with Applications

Fernandes,

Silva,

Araújo

2024

Korean J. Chem. Eng.

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Estimating kinetic parameters in heterogeneous solid catalytic reaction networks is known to being a difficult task. This work aims at proposing a down-to-earth methodology to obtain kinetic parameters from numerical experiments. We present three techniques: a multivariable linear regression model, a stochastic metamodeling, and an optimized Kriging interpolator connected to a least-squares method. We consolidate the methodology in two different applications. The first one is a process with few components in two reactions from where it was possible to acquire the reaction rate equations that fitted literature data. The second one is a complex industrial reaction network. The results showed that even if the candidate proposed reaction rate equations do not fit the experiments, it is possible to construct a mathematical metamodel that conforms to the behavior of the components. Statistical tests showed that in both cases the proposed models successfully fit the experimental data.

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Section: A Technique For Kinetic Parameter Estimation In Heterogeneou...mentioning

confidence: 99%

A Systematic Technique for Kinetic Parameter Estimation in Heterogeneous Solid Catalytic Reaction Networks with Applications

Fernandes,

Silva,

Araújo

2024

Korean J. Chem. Eng.

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“…The conventional FBR technology is still applied on industrial scale to steam reforming of methane [13] [14]. Thermodynamically, the conventional FBR is operated at high temperature to reforming processes [15].…”

Section: Analysis For Fbrmentioning

confidence: 99%

A Simulation Study of the Steam Reforming of Methaneina Fixed-Bed Reactor

Silva¹,

Mendes²,

Silva³

2016

ENG

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In this work a one-dimensional mathematical model was developed to simulate methane conversion and hydrogen yield in a fixed-bed reactor filled with catalyst particles. For the reason that reforming reactions are sorely endothermic process, the heat is supplied to the reactor through electrical heating. The reforming reactions have been investigated from a modelling view point considering the effect of different temperatures ranging from 500˚C and 977˚C on the conversion of methane and hydrogen yield. Simulation results show that the steam reforming of methane in a fixed-bed reactor can efficiently store high temperature end thermal energy. When the operating temperature is increased to 977˚C, the conversion of methane is 97.48% and the hydrogen yield is 2.2408. As a conclusion, the maximum thermochemical efficiency will be obtained under optimal operating temperature (977˚C) and the steam/methane (3.86) ratio.

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“…The reactor is better balanced thermally for the co-flow arrangement compared with a counter-flow arrangement. Effects of inlet parameters of the reforming flow channel and the combustion flow channel on the reactor performance were systematically studied using a mathematical model by Wang et al (2012). Results showed that a hot spot near the reactor inlet was observed due to the local imbalance of the heating effect of steam reforming and catalytic combustion in the corresponding channels.…”

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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Transport characteristic study of methane steam reforming coupling methane catalytic combustion for hydrogen production

Cited by 22 publications

References 26 publications

A Systematic Technique for Kinetic Parameter Estimation in Heterogeneous Solid Catalytic Reaction Networks with Applications

A Systematic Technique for Kinetic Parameter Estimation in Heterogeneous Solid Catalytic Reaction Networks with Applications

A Simulation Study of the Steam Reforming of Methaneina Fixed-Bed Reactor

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

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