Zeolite catalysts for Halon conversion

R.F. Howe; S. Thomson; Y. Yang; K. Lee; E.M. Kennedy; B.Z. Dlugogorski

doi:10.1016/S1381-1169(01)00344-2

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Journal article

Peer reviewed

Zeolite catalysts for Halon conversion

R.F. Howe, S. Thomson, Y. Yang, K. Lee, E.M. Kennedy and B.Z. Dlugogorski

Journal of Molecular Catalysis A: Chemical, Vol.181(1-2), pp.63-72

2002

DOI: https://doi.org/10.1016/S1381-1169(01)00344-2

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Abstract

A1 and Ni K-edge XANES and EXAFS experiments have been undertaken to characterise the chemical states of aluminium and nickel in NiZSM-5 catalysts used for the pyrolysis and hydrodehalogenation with methane of Halon 1301 (CF3Br). It is shown that pyrolysis of Halon 1301 over NiZSM-5 involves both extra-framework aluminium fluoride or hydroxyfluoride species and aggregated nickel species, probably fluorided. Reaction products are CF4 and C2F6. The reaction between Halon 1301 and methane over NiZSM-5 produces CHF3 and CH3Br as major, but not exclusive products. In the presence of CH4 framework dealumination and aggregation of nickel is inhibited. Future prospects for utilising these and similar catalysts in reactions of other Halons and CFCs to produce useful fluorocarbon products as an alternative to destruction are briefly discussed.

Details

Title: Zeolite catalysts for Halon conversion
Authors/Creators: R.F. Howe (Author/Creator) - University of Aberdeen
S. Thomson (Author/Creator) - UNSW Sydney
Y. Yang (Author/Creator) - UNSW Sydney
K. Lee (Author/Creator) - University of Newcastle Australia
E.M. Kennedy (Author/Creator) - University of Newcastle Australia
B.Z. Dlugogorski (Author/Creator) - University of Newcastle Australia
Publication Details: Journal of Molecular Catalysis A: Chemical, Vol.181(1-2), pp.63-72
Publisher: Elsevier
Identifiers: 991005543117807891
Copyright: © 2002 Elsevier Science B.V.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.90 Water Treatment; 2.90.1763 Zero-Valent Iron
Web Of Science research areas: Chemistry, Physical
ESI research areas: Chemistry