Generation of Catalytic Films of Alumina and Zeolites on FeCrAlloy Rods

Research output: Chapter in Book/Report/Conference proceedingConference contribution


FeCralloy rods (0.5 mm thickness) were subjected to high temperature thermal oxidation to produce a metastable alumina phase. This structured layer acts as an anchor to bind additional coatings of alumina via wash-coat techniques, thereby improving the layer thickness and increasing adhesion of the catalytic surface.In addition, thin films of structured zeolite catalysts (ZSM-5 and Zeolite Y) were grown onto the surface of a metal substrate using in-situ hydrothermal synthesis. All catalysts were fully characterised by SEM, EDX and XRD. The cracking of n-heptane over structured catalysts for both ZSM-5 and Zeolite Y showed very similarproduct selectivity compared with similar traditional pelleted catalyst forms. The alumina coated FeCralloy rods were impregnated with 1 wt. % platinum and tested in a fixed bed reactor to assess the impact on yield for the dehydrogenation of methylcyclohexane and compared with conventional 1 wt. % Pt/Al2O3 pellets. Thispaper demonstrates that structured catalysts can be manufactured with excellent alumina and zeolite adherence and when suitably activated/modified gives comparable catalytic results to the pelleted powder forms. These coated structured catalysts enhance temperature distribution in highly exothermic and endothermic catalysed processes in addition to improving the mass transfer properties of the reactor system.

Bibliographical metadata

Original languageEnglish
Title of host publicationChemical Engineering Transactions
EditorsJiří J Klemeš, Sauro Pierucci
Place of PublicationItaly
Number of pages6
ISBN (Print)978-88-95608-34-1
Publication statusPublished - May 2015
EventICheaP12 - Milan
Event duration: 19 May 201522 May 2015

Publication series

NameChemical Engineering Transactions


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