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DC Field | Value | Language |
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dc.contributor.author | Mohd Irfan Hatim, Mohamed Dzahir, Dr. | - |
dc.contributor.author | Umi Fazara, Md. Ali, Dr. | - |
dc.contributor.author | Muhammad Syarhabil, Ahmad, Dr. | - |
dc.contributor.author | Fahmi, Riduwan | - |
dc.date.accessioned | 2013-09-11T04:52:26Z | - |
dc.date.available | 2013-09-11T04:52:26Z | - |
dc.date.issued | 2012-11-20 | - |
dc.identifier.citation | p. 421-428 | en_US |
dc.identifier.uri | http://dspace.unimap.edu.my/123456789/28134 | - |
dc.description | Malaysian Technical Universities Conference on Engineering and Technology (MUCET) 2012 organised by technical universities under the Malaysian Technical Universities Network (MTUN), 20th - 21st November 2012 at Hotel Seri Malaysia, Kangar, Perlis. | en_US |
dc.description.abstract | 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 μm 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/Al2O3 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 mgcm-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 mg cm-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.iso | en | en_US |
dc.publisher | Malaysian Technical Universities Network (MTUN) | en_US |
dc.relation.ispartofseries | Proceedings of the Malaysian Technical Universities Conference on Engineering and Technology (MUCET) 2012; | - |
dc.subject | Asymmetric structure | en_US |
dc.subject | Methylcyclohexane dehydrogenation | en_US |
dc.subject | Membrane reactor | en_US |
dc.subject | PD membrane | en_US |
dc.subject | Catalyst | en_US |
dc.title | Catalytic dehydrogenation of methylcyclohexane (MCH) to toluene in a palladium/alumina hollow fibre membrane reactor | en_US |
dc.type | Working Paper | en_US |
dc.contributor.url | irfan@unimap.edu.my | en_US |
Appears in Collections: | Conference Papers Umi Fazara Md. Ali, Assoc. Prof. Ir. Dr. School of Environmental Engineering (Articles) |
Files in This Item:
File | Description | Size | Format | |
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CCE 14.pdf | Access is limited to UniMAP community | 799.53 kB | Adobe PDF | View/Open |
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