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Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor

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Main Authors: Mohd Irfan Hatim, Mohamed Dzahir, Dr., Umi Fazara, Md Ali, Dr., Muhammad Syarhabil, Ahmad, Dr., Fahmi, Muhammad Ridwan, Dr.
Other Authors: irfan@unimap.edu.my
Format: Article
Language:English
Published: Elsevier Ltd. 2014
Subjects:
Asymmetric structure
Catalyst
Membrane reactor
Methylcyclohexane dehydrogenation
Pd membrane
Online Access:http://dspace.unimap.edu.my:80/dspace/handle/123456789/33289
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spelling my.unimap-332892014-04-01T03:29:33Z Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor Mohd Irfan Hatim, Mohamed Dzahir, Dr. Umi Fazara, Md Ali, Dr. Muhammad Syarhabil, Ahmad, Dr. Fahmi, Muhammad Ridwan, Dr. irfan@unimap.edu.my umifazara@unimap.edu.my syarhabil@unimap.edu.my drfahmi@unimap.edu.my Asymmetric structure Catalyst Membrane reactor Methylcyclohexane dehydrogenation Pd membrane Link to publisher's homepage at http://www.elsevier.com/ A compact multifunctional Pd/alumina hollow fibre membrane reactor (HFMR) has been developed and used for the catalytic dehydrogenation of methylcyclohexane to toluene. The developed HFMR consists of a thin and defect-free Pd membrane of 5 um coated directly onto the outer surface of an alumina hollow fibre substrate. The substrate, was prepared by a phase inversion/sintering method, possess a unique asymmetric structure which can be characterised by a very porous inner surface from which finger-like voids extend across approximately 80 % of the fibre cross-section with the remaining 20 % consisting of a denser sponge-like outer layer. A 50 wt% Ni/Al2O 3 catalyst is directly deposited into the asymmetric support, with a fraction of catalyst particles distributed uniformly in the finger-like macro-voids while the others on the lumen surface forming a "filter- cake"-like layer. A significant increase in gas permeation resistance occurs due to this "filter-cake"-like catalyst layer when the catalyst loading (weight per unit fibre length) is above 2.3 mg-cm-1. Methylcyclohexane conversion increases with the increasing temperatures, because of the endothermic nature of the reaction; while decreases with the higher sweep gas flow rates due to the more serious catalyst deactivation in the HFMR. For a HFMR with 1.0 mgx-1 of catalyst loading, methylcyclohexane conversion of approximately 26% can be achieved at 610 °C with the sweep gas flowrate of 20 ml min-1, while for a porous membrane reactor and a fixed-bed reactor the methylcyclohexane conversion of 50% and 25% can be achieved at identical operating temperature. 2014-04-01T03:29:33Z 2014-04-01T03:29:33Z 2013 Article Procedia Engineering, vol. 53, 2013, pages 71-80 978-162748634-7 1877-7058 http://www.sciencedirect.com/science/article/pii/S1877705813001318 http://dspace.unimap.edu.my:80/dspace/handle/123456789/33289 en Elsevier Ltd.
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Asymmetric structure
Catalyst
Membrane reactor
Methylcyclohexane dehydrogenation
Pd membrane
spellingShingle Asymmetric structure
Catalyst
Membrane reactor
Methylcyclohexane dehydrogenation
Pd membrane
Mohd Irfan Hatim, Mohamed Dzahir, Dr.
Umi Fazara, Md Ali, Dr.
Muhammad Syarhabil, Ahmad, Dr.
Fahmi, Muhammad Ridwan, Dr.
Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
description Link to publisher's homepage at http://www.elsevier.com/
author2 irfan@unimap.edu.my
author_facet irfan@unimap.edu.my
Mohd Irfan Hatim, Mohamed Dzahir, Dr.
Umi Fazara, Md Ali, Dr.
Muhammad Syarhabil, Ahmad, Dr.
Fahmi, Muhammad Ridwan, Dr.
format Article
author Mohd Irfan Hatim, Mohamed Dzahir, Dr.
Umi Fazara, Md Ali, Dr.
Muhammad Syarhabil, Ahmad, Dr.
Fahmi, Muhammad Ridwan, Dr.
author_sort Mohd Irfan Hatim, Mohamed Dzahir, Dr.
title Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
title_short Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
title_full Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
title_fullStr Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
title_full_unstemmed Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor
title_sort catalytic dehydrogenation of methylcyclohexane (mch) to toluene in a palladium/alumina hollow fibre membrane reactor
publisher Elsevier Ltd.
publishDate 2014
url http://dspace.unimap.edu.my:80/dspace/handle/123456789/33289
_version_ 1643797126971392000
score 13.15806

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