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dc.contributor.authorMohd Irfan Hatim, Mohamed Dzahir, Dr.
dc.contributor.authorUmi Fazara, Md. Ali, Dr.
dc.contributor.authorMuhammad Syarhabil, Ahmad, Dr.
dc.contributor.authorFahmi, Muhammad Ridwan, Dr.
dc.date.accessioned2014-04-01T03:29:33Z
dc.date.available2014-04-01T03:29:33Z
dc.date.issued2013
dc.identifier.citationProcedia Engineering, vol. 53, 2013, pages 71-80en_US
dc.identifier.isbn978-162748634-7
dc.identifier.issn1877-7058
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S1877705813001318
dc.identifier.urihttp://dspace.unimap.edu.my:80/dspace/handle/123456789/33289
dc.descriptionLink to publisher's homepage at http://www.elsevier.com/en_US
dc.description.abstractA 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.en_US
dc.language.isoenen_US
dc.publisherElsevier Ltd.en_US
dc.subjectAsymmetric structureen_US
dc.subjectCatalysten_US
dc.subjectMembrane reactoren_US
dc.subjectMethylcyclohexane dehydrogenationen_US
dc.subjectPd membraneen_US
dc.titleCatalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactoren_US
dc.typeArticleen_US
dc.contributor.urlirfan@unimap.edu.myen_US
dc.contributor.urlumifazara@unimap.edu.myen_US
dc.contributor.urlsyarhabil@unimap.edu.myen_US
dc.contributor.urldrfahmi@unimap.edu.myen_US


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