Catalytic Wet Air Oxidation of Phenol in a Trickle Bed Reactor
DOI:
https://doi.org/10.31699/IJCPE.2007.4.7Keywords:
oxidation of phenol, trickle bed reactor.Abstract
Catalytic wet air oxidation of aqueous phenol solution was studied in a pilot plant trickle bed reactor using copper
oxide catalyst supported on alumina and silica. Catalysts were prepared by impregnating method. Effect of feed solution
pH (5.9, 7.3, and 9.2), gas flow rate (20%, 50%, 80%, and 100%), WHSV (1, 2, and 3 h-1), temperature (120°C, 140°C,
and 160°C), oxygen partial pressure (6, 9, 12 bar), and initial phenol concentration (1, 2, and 4 g/l).Generally, the
performance of the catalysts was better when the pH of feed solution was increased. The catalysts deactivation is related
to the dissolution of the metal oxides from the catalyst surface due to the acidic conditions. Phenol oxidation reaction
was strongly affected by WHSV, temperature, oxygen partial pressure, and initial phenol concentration. While gas flow
rate had a marginal effect.
References
Miro, C., Alejamdre, A., Fortuny, A., Bengoa, C. Font, J. and Fabregat, A., Water Research, 33, 1005-1013 (1999).
Fortuny, A., Miro, C., Font, J. and Fabregat, A., Catalysis today, 48, 323-328 (1999).
Singh, A., Pant, K. K. and Nigam, K. D. P., Chemical Engineering Journal, 103, 51-57 (2004).
Fortuny, A., Bengoa, C., Font, J. and Fabregat, A., A Journal of Hazardous Materials, 64, 181-193 (1999).
Wu, Q., Hu, X., Yue, P.L., Chemical Engineering Since, 58, 923-928 (2003).
Eftaxias, A., Font, J., Fortuny, A., Giralt, J., Fabregat, A. and Stuber, F., Applied Catalysis- B: Environmental, 33, 175-190 (2001).
Wu, Q., Hu, X., Yue, P.L., Zhao, X.S., Lu, G.Q., Applied Catalysis B: Environmental, 32, 151-156 (2001).
Fenoglio, R., Rolandi, P., Massa, P. Ganzalez, J. and Haure, P., Reactor, Kinetic and Catalysis Letters, 31, 83-90 (2004).
Massa, P.A., Ayude, M.A., Fenoglio, R.J., Gonzalez, J.F. and Haure, P.M., Latin American Applied Research, 34, 133-140 (2004).
Fortuny, A., Font, J. and Fabregat, A., Applied Catalysis- B: Environmental, 19, 165-173 (1998).
Fortuny, A., Ferrer, C., Bengoa, C., Font, J. andFabregat, A., Catalysis today, 24, 79-83 (1995).
Downloads
Published
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
