International Journal of Hydrogen Energy, ( ISI ), Volume (36), No (24), Year (2011-12) , Pages (15602-15610)

Title : ( CFD modeling of hydrogen production using steam reforming of methane in monolith reactors: Surface or volume-base reaction model? )

Authors: Mohammad Irani , Asghar Alizadehdakhel , Ali Nakhaei Pour , Nasibeh Hoseini , Morteza Adinehnia ,

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In the present work, two approaches for reaction modeling in monolith reactors were taken into account and compared to each other. In the first approach, the reactions are assumed to take place on the wall surfaces, while penetration and reaction of chemical species inside a thin layer near the walls are of essential concern in the second approach. Experiments of Steam Methane Reforming (SMR) were carried out in a Bench-scale monolith reactor. A single-channel was considered and two axi-symmetric CFD models were developed for modeling. General kinetic models for SMR and Water–Gas-Shift (WGS) reaction rates based on Langmuir–Hinshelwood type were employed. Comparisons between modeling results and experimental data showed that despite its ease of implementation, the first approach (surface reactions) exhibits better results both in generality and accuracy. It was realized that uncertainties in obtaining the effective diffusion coefficients in the volumetric approach may cause a variation up to 16% in the prediction of reaction conversion.

Keywords

, Monolith reactor; CFD; Steam reforming; Surface, based rate; Volume, based
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@article{paperid:1035528,
author = {Mohammad Irani and Asghar Alizadehdakhel and Nakhaei Pour, Ali and Nasibeh Hoseini and Morteza Adinehnia},
title = {CFD modeling of hydrogen production using steam reforming of methane in monolith reactors: Surface or volume-base reaction model?},
journal = {International Journal of Hydrogen Energy},
year = {2011},
volume = {36},
number = {24},
month = {December},
issn = {0360-3199},
pages = {15602--15610},
numpages = {8},
keywords = {Monolith reactor; CFD; Steam reforming; Surface-based rate; Volume-based rate},
}

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%0 Journal Article
%T CFD modeling of hydrogen production using steam reforming of methane in monolith reactors: Surface or volume-base reaction model?
%A Mohammad Irani
%A Asghar Alizadehdakhel
%A Nakhaei Pour, Ali
%A Nasibeh Hoseini
%A Morteza Adinehnia
%J International Journal of Hydrogen Energy
%@ 0360-3199
%D 2011

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