Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst

The reaction kinetics of DRM over high-performance Ni�W/Al2O3�MgO bimetallic catalyst is investigated in a fixed bed reactor. The variation of reaction rate is examined within the CH4 and CO2 partial pressure from 0.2 to 0.6 atm and the temperature range of 600oC�800 °C. It is found that the...

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Main Authors: Yusuf, M., Beg, M., Ubaidullah, M., Shaikh, S.F., Keong, L.K., Hellgardt, K., Abdullah, B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.29451 /
Published: Elsevier Ltd 2021
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113412135&doi=10.1016%2fj.ijhydene.2021.08.021&partnerID=40&md5=ad78fa98981e66ecfeb6da8caa5bd287
http://eprints.utp.edu.my/29451/
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spelling utp-eprints.294512022-03-25T02:07:06Z Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst Yusuf, M. Beg, M. Ubaidullah, M. Shaikh, S.F. Keong, L.K. Hellgardt, K. Abdullah, B. The reaction kinetics of DRM over high-performance Ni�W/Al2O3�MgO bimetallic catalyst is investigated in a fixed bed reactor. The variation of reaction rate is examined within the CH4 and CO2 partial pressure from 0.2 to 0.6 atm and the temperature range of 600oC�800 °C. It is found that the rate of reaction for DRM is more sensitive to CH4 partial pressure compared to CO2 partial pressures. At a constant partial pressure of CO2 and increasing the CH4 partial pressure, the increase in the reaction rate is more than reverse conditions. The activation energies of consumption of CH4 and CO2 were found to be 45.9 and 31.9 kJ/mol, respectively, showing a higher energy barrier for CH4 activation than CO2. Four typical kinetic models then fitted the experimental results obtained, i.e., Power Law, Langmuir- Hinshelwood and Eley-Rideal model I and II. The Langmuir-Hinshelwood model showed the best fitting between experimental and estimated reaction rates. © 2021 Hydrogen Energy Publications LLC Elsevier Ltd 2021 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113412135&doi=10.1016%2fj.ijhydene.2021.08.021&partnerID=40&md5=ad78fa98981e66ecfeb6da8caa5bd287 Yusuf, M. and Beg, M. and Ubaidullah, M. and Shaikh, S.F. and Keong, L.K. and Hellgardt, K. and Abdullah, B. (2021) Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst. International Journal of Hydrogen Energy . http://eprints.utp.edu.my/29451/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description The reaction kinetics of DRM over high-performance Ni�W/Al2O3�MgO bimetallic catalyst is investigated in a fixed bed reactor. The variation of reaction rate is examined within the CH4 and CO2 partial pressure from 0.2 to 0.6 atm and the temperature range of 600oC�800 °C. It is found that the rate of reaction for DRM is more sensitive to CH4 partial pressure compared to CO2 partial pressures. At a constant partial pressure of CO2 and increasing the CH4 partial pressure, the increase in the reaction rate is more than reverse conditions. The activation energies of consumption of CH4 and CO2 were found to be 45.9 and 31.9 kJ/mol, respectively, showing a higher energy barrier for CH4 activation than CO2. Four typical kinetic models then fitted the experimental results obtained, i.e., Power Law, Langmuir- Hinshelwood and Eley-Rideal model I and II. The Langmuir-Hinshelwood model showed the best fitting between experimental and estimated reaction rates. © 2021 Hydrogen Energy Publications LLC
format Article
author Yusuf, M.
Beg, M.
Ubaidullah, M.
Shaikh, S.F.
Keong, L.K.
Hellgardt, K.
Abdullah, B.
spellingShingle Yusuf, M.
Beg, M.
Ubaidullah, M.
Shaikh, S.F.
Keong, L.K.
Hellgardt, K.
Abdullah, B.
Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
author_sort Yusuf, M.
title Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
title_short Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
title_full Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
title_fullStr Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
title_full_unstemmed Kinetic studies for DRM over high-performance Ni�W/Al2O3�MgO catalyst
title_sort kinetic studies for drm over high-performance ni�w/al2o3�mgo catalyst
publisher Elsevier Ltd
publishDate 2021
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113412135&doi=10.1016%2fj.ijhydene.2021.08.021&partnerID=40&md5=ad78fa98981e66ecfeb6da8caa5bd287
http://eprints.utp.edu.my/29451/
_version_ 1741197243738750976
score 11.62408

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