Phenol oxidation in a periodically operated trickle bed reactor

The present contribution reports an experimental study of the oxidation of phenol aqueous solutions over a CuO/γ-Al 2O 3 catalyst carried out in a trickle bed reactor. Steady-state as well as periodic on–off experiments were performed. In the range of operating conditions studied, it was observed th...

Full description

Saved in:
Bibliographic Details
Published in:Catalysis today 2005-10, Vol.107, p.630-636
Main Authors: Massa, P., Ayude, M.A., Ivorra, F., Fenoglio, R., Haure, P.
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Exact sciences and technology
General and physical chemistry
Periodic operation
Phenol oxidation
Selectivity
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present contribution reports an experimental study of the oxidation of phenol aqueous solutions over a CuO/γ-Al 2O 3 catalyst carried out in a trickle bed reactor. Steady-state as well as periodic on–off experiments were performed. In the range of operating conditions studied, it was observed that liquid flow modulation has a mild effect on phenol conversion but it does affect product distribution, favoring the mineralization process. When the liquid flow is halted, the intermediate products remain inside the catalyst and are further oxidized to final products. The residence time of the intermediates and the average oxygen concentrations inside the catalytic pellet during liquid flow modulation are higher than those attained in steady-state operation.
ISSN:0920-5861
1873-4308
DOI:10.1016/j.cattod.2005.07.037