Wet oxidation of wastewater containing hydrocarbons by novel supported Pd catalysts

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Pd catalysts supported on TiO2, ZrO2, ZSM-5, MCM-41 and activated carbon were used in catalytic wet oxidation of hydrocarbons such as phenol, m-cresol and m-xylene. It was found that the Pd/TiO2 catalyst was highly effective in the wet oxidation of hydrocarbon. The activities of catalysts with various hydrocarbon species, catalyst support, oxidation state of catalyst performed in a 3-phase slurry reactor show that reaction on Pd surface is more favorable than that in aqueous phase and that the active site is oxidized Pd in catalytic wet air oxidation of hydrocarbons. Based on the experimental results, a plausible reaction mechanism of wet oxidation of hydrocarbons catalyzed over Pd/TiO2 catalyst was proposed. This catalyst is superior to other oxide catalysts because it suppressed the formation of hardly-degradable organic intermediates and polymer.
Publisher
KOREAN INST CHEM ENGINEERS
Issue Date
1997-11
Language
English
Article Type
Article
Keywords

LIQUID-PHASE OXIDATION; REACTOR; MODEL

Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.14, no.6, pp.479 - 485

ISSN
0256-1115
DOI
10.1007/BF02706596
URI
http://hdl.handle.net/10203/250982
Appears in Collection
CBE-Journal Papers(저널논문)
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