Application of La-ZSM-5 Coated Silicon Carbide Foam Catalyst for Toluene Methylation with Methanol

The performance of toluene methylation reaction was studied on H-ZSM-5 catalyst modified with La, Ce and Nb at different percentage loading. It was found that 10% metal loading produced the best performance in the reaction in terms of toluene conversion. The catalyst was coated on silicon carbide foam support which showed better conversion than the pelleted catalyst. Again, among the treated and untreated H-ZSM-5, the La-ZSM-5 catalyst is chosen for the reaction for its highest selectivity towards xylene, the main product. All catalysts were characterized in terms of surface properties, SEM, XRD and NH3-TPD. Kinetic study was done on La-ZSM-5 catalyst with 10% loading. In this kineticstudy, Langmuir Hinshelwood kinetic model with surface reaction as rate controlling step was selected as the rate equation. The activation energy was found to be 47 kJ/mol. © 2015 BCREC UNDIP. All rights reserved. Received: 9th December 2014; Revised: 27th April 2015; Accepted: 29th April 2015  How to Cite: Ghosal, D., Basu, J.K., Sengupta, S. (2015). Application of La-ZSM-5 Coated Silicon Carbide Foam Catalyst for Toluene Methylation with Methanol. Bulletin of Chemical Reaction Engineering &amp; Catalysis, 10 (2): 201-209. (doi:10.9767/bcrec.10.2.7872.201-209) Permalink/DOI: http://dx.doi.org/10.9767/bcrec.10.2.7872.201-209  </p

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

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<p><em>Received: 22nd April 2013; Revised: 25th October 2013; Accepted: 1st November 2013</em></p><p>[<strong>How to Cite</strong>: Sengupta, S., Ghosal, D., Basu, J.K. (2013). Oxidation of Catechol using Titanium Silicate (TS-1) Catalyst: Modeling and Optimization.<em><strong> Bulletin of Chemical Reaction Engineering &amp; Catalysis</strong></em>, 8 (2): 167-177. (doi:10.9767/bcrec.8.2.4759.167-177)]</p><p>[<strong>Permalink/DOI</strong>: <a href="http://dx.doi.org/10.9767/bcrec.8.2.4759.167-177">http://dx.doi.org/10.9767/bcrec.8.2.4759.167-177</a>]</p

Abstracts of the International Chemical Engineering Conference 2021: 100 Glorious Years of Chemical Engineering & Technology

This book presents the selected abstracts of the International Chemical Engineering Conference 2021, hosted from the 16th to 19th of September 2021 in virtual mode by the Department of Chemical Engineering, NIT Jalandhar, India. Conference Title: International Chemical Engineering Conference 2021Conference Acronym: ICheEC2021Theme: 100 Glorious Years of Chemical Engineering &amp; TechnologyConference Date: 16-19 September 2021Conference Location: OnlineConference Organizer: Department of Chemical Engineering, NIT Jalandhar, Indi