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Oxidation of Catechol using Titanium Silicate (TS-1) Catalyst: Modeling and Optimization

*Sonali Sengupta  -  Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302,, India
Jayanta Kumar Basu  -  Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302,, India
Debarpita Ghosal  -  Department of Chemical Engineering, Indian Institute of Technology Kharagpur, 721302,, India

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The oxidation of catechol was studied in an eco-friendly process with commercial titanium silicate-1 (TS-1) catalyst and hydrogen peroxide as oxidant in absence of all mass transfer effects. The process was opti-mized by Box-Behnken design in terms of three independent process variables such as reaction tempera-ture, moles of hydrogen peroxide per mole of catechol and catalyst amount whose optimum values of the process variables were found to be 60 °C, 13.2 and 1.24 g respectively for maximum conversion of 75.8 %. The effects of different process parameters such as mole ratio of hydrogen peroxide to catechol, catalyst par-ticle size, catalyst amount, temperature and reaction time were studied. A pseudo first order kinetic model was fitted with the experimental rate data. The apparent activation energy for the reaction was found to be 11.37 kJ/mole.  © 2013 BCREC UNDIP. All rights reserved

Received: 22nd April 2013; Revised: 25th October 2013; Accepted: 1st November 2013

[How to Cite: Sengupta, S., Ghosal, D., Basu, J.K. (2013). Oxidation of Catechol using Titanium Silicate (TS-1) Catalyst: Modeling and Optimization. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (2): 167-177. (doi:10.9767/bcrec.8.2.4759.167-177)]


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Keywords: Catechol; oxidation; TS-1; box-behnken design; kinetic study

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