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Degradation of olive oil mill effluents by catalytic wet air oxidation: 1. Reactivity of p-coumaric acid over Pt and Ru supported catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
49027 46541 2006 8 PDF Available
Title
Degradation of olive oil mill effluents by catalytic wet air oxidation: 1. Reactivity of p-coumaric acid over Pt and Ru supported catalysts
Abstract

The objective of this work was to investigate the catalytic wet air oxidation of p-coumaric acid, a biorecalcitrant phenolic compound typically found in olive oil wastewaters in the presence of Pt and Ru supported catalysts. The influence of the operating variables were established. The most important intermediates determined by HPLC measurements suggest a rapid attack by oxygen of the side-chain of p-coumaric acid, and the mineralization proceeds through different aromatic compounds reacting further to aliphatic intermediates (mainly acids). Important mineralization yields were achieved in the presence of the catalysts at 140 °C and 50 bar air. The importance of the nature of the support (TiO2, ZrO2) on the adsorption of p-coumaric acid was demonstrated.

Keywords
Catalytic wet air oxidation; Platinum and ruthenium heterogeneous catalysts; p-Coumaric acid; Olive oil mill effluents
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Degradation of olive oil mill effluents by catalytic wet air oxidation: 1. Reactivity of p-coumaric acid over Pt and Ru supported catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 63, Issues 1–2, 22 March 2006, Pages 68–75
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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