Liquid Phase Catalytic Oxidation of Aqueous Solutions That Contain Organic Matter in a Trickle-Bed Reactor

DOI: 10.4236/eng.2013.51006   PDF   HTML   XML   3,423 Downloads   5,070 Views   Citations


In this study, catalytic wet air oxidation of wastewater that contains organic matter (phenol) is investigated in a laboratory scale trickle-bed reactor. The aim of this project is to determine the optimum operating conditions for the reaction of phenol in the wastewater with oxygen using a catalyst. For this purpose, the effects of temperature, gas flow rate, liquid space velocity and initial concentration of phenol on the conversion of phenol at constant pressure and the effect of pressure on the conversion of phenol at constant temperature are investigated. An industrial copper chromite catalyst was used in the experimental studies. It is seen from the experimental results, conversion of phenol increases with increasing temperature, pressure, gas flow rate and liquid space velocity; and also, it is seen that conversion of phenol decreases with increasing initial concentration of phenol. The conversion of phenol reaches at 130?C and 4 bar to 40%. It was also found that, 3 ppm copper amount was determined from the exit stream of the reactor. This result shows that cupper placed in the structure of the catalyst, mixes with the liquid stream during the reaction.

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C. Uraz and S. Atalay, "Liquid Phase Catalytic Oxidation of Aqueous Solutions That Contain Organic Matter in a Trickle-Bed Reactor," Engineering, Vol. 5 No. 1, 2013, pp. 39-43. doi: 10.4236/eng.2013.51006.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] J. Font, C. Bengoa, A. Fortuny, A. Alejandre, C. Miro and A. Fabregat, “Agueous Phase Catalytic Oxidation of Phenol in a Trickle Bed Reactor: Effect of the pH,” Water Research, Vol. 33, No. 4, 1998, pp. 1005-1013.
[2] J. Levec and A. Pintar, “Catalytic Oxidation on Aqueous Solutions of Organic. An Effective Method for Removal of Toxic Pollutants from Waste Waters,” Catalysis Today, Vol. 24, No. 1-2, 1995, pp. 51-58. doi:10.1016/0920-5861(95)00006-2
[3] A. Pintar, G. Bercic and J. Levec, “Catalytic Liquid Phase Oxidation of Aqueous Phenol Solutions in a Trickle BedReactor,” Chemical Engineeing Science, Vol. 52, No. 2122, 1997, pp. 4143-4153.
[4] A. Cybulski and J. Trawczynski, “Catalytic Wet Air Oxidation of Phenol over Platinum and Ruthenium Catalysts,” Applied Catalysis B: Environmental, Vol. 47, No. 1, 2004, pp. 1-13. doi:10.1016/S0926-3373(03)00327-8
[5] S. T. Kolaczkowski and S. Awdry, “The Condensation/ Polymerisation of Dimethyl Siloxane Fluids in a ThreePhase Trickle Flow Monolith Reactor,” Catalysis Today, Vol. 69, No. 1-4, 2001, pp. 275-281. doi:10.1016/S0920-5861(01)00380-7
[6] K. K. Pant, A. Singh and K. D. P. Nigam, “Catalytic Wet Oxidation of Phenol in a Trickle Bed Reactor,” Chemical Engineering Journal, Vol. 103, No. 1-3, 2004, pp. 51-57. doi:10.1016/j.cej.2004.06.006
[7] F. Stuber, A. Eftaxias, J. Font, A. Fortuny and A. Fabregat, “Catalytic Wet Air Oxidation of Phenol over Active Carbon Catalyst: Global Kinetic Modelling Using Simulated Annealing,” Applied Catalysis B: Environmental, Vol. 67, No. 1-2, 2006, pp. 12-23.
[8] A. Fabregat, A. Fortuny, C. Bengoa, J. Font and F. Castells, “Water Pollution Abatement by Catalytic Wet Air Oxidation in a Trickle Bed Reactor,” Catalysis Today, Vol. 53, No. 1, 1999, pp. 107-114. doi:10.1016/S0920-5861(99)00106-6
[9] A. Santos, P. Yustos, A. Quintanilla, S. Rodriguez and F. Garcia-Ochoa, “Route of the Catalytic Oxidation of Phenol in Aqueous Phase,” Applied Catalysis B: Environmental, Vol. 39, No. 2, 2002, pp. 97-113. doi:10.1016/S0926-3373(02)00087-5
[10] M. Al-Dahhan and J. Guo, “Catalytic Wet Air Oxidation of Phenol in Cocurrent Downflow and Upflow PackedBed Reactor over Pillared Clay Catalyst,” Chemical Engineering Science, Vol. 60, No. 3, 2005, pp. 735-746. doi:10.1016/j.ces.2004.08.043
[11] C. Hung and W. Lin, “Catalytic Wet Air Oxidation of Aqueous Solutions of Ammonia in a Continuous-Flow Trickle-Bed Reactor Over Metal Supported on Carbon Materials,” Sustainable Environment Research, Vol. 20, No. 4, 2010, pp. 251-255.

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