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

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

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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 & Catalysis, 10 (2): 201-209. (doi:10.9767/bcrec.10.2.7872.201-209)



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  1. Aboul-Gheit, A.K., Abdel-Hamid, S.M., Emam, E.A. (1999). Catalytic para-xylene maximization II - alkylation of toluene with methanol on platinum loaded H-ZSM-5 zeolite catalysts prepared via different routes. Appl. Catal. A: Gen. 179: 107-115
  2. Aboul-Gheit, A.K., Awadallah, A.E., Aboul-Enein, A.A., Mahmoud, A.L.H. (2011). Molybdenum substitution by copper or zinc in H-ZSM-5 zeolite for catalyzing the direct conversion of natural gas to petrochemicals under non-oxidative conditions. Fuel. 90: 3040-3046
  3. Madhavi, G., Kulkarni, S.J., Murthy, KVVSBSR, Viswanathan, V., Raghavan, K.V. (2003). Side-chain alkylation of 4-picoline with formaldehyde over alkali-modified zeolites. Appl. Catal. A: Gen. 246: 265-282
  4. Choudhary, V.R., Jana, S.K., Mamman, A.S. (2002). Benzylation of benzene by benzyl chloride over Fe-modified ZSM-5 and H-b zeolites and Fe2O3 or FeCl3 deposited on micro-, meso- and macro-porous supports. Microporous and Mesoporous Materials. 56 : 65-71
  5. Dı´az, E., Ordo´n˜ez, S., Vega, A., Auroux, C.J. (2005). Benzylation of benzene over Fe-modified ZSM-5 zeolites: Correlation between activity and adsorption properties. Appl. Catal. A: Gen. 295 :106-115
  6. Barros, I.C.L., Braga, V.S., Pinto, D.S., de Macedo, J.L., Filho, G.N.R., Dias, J.A., Dias, S.C.L. (2008). Effects of niobium addition on ZSM-5 studied by thermal and spectroscopy methods. Microporous and Mesoporous Materials. 109: 485-493
  7. Prasetyoko, D., Ramli, Z., Endud, S., Nur, H. (2008). Characterization and Catalytic Performance of Niobic Acid Dispersed over Titanium Silicalite. Adv. Mat. Sci. Eng. 345895: 1-12
  8. Moreira, C.R., Pereira, M.M., Alcobe, X., Homs, N., Llorca, J., Fierro, J.L.G., Ramirez de la Piscina, P. (2007). Nature and location of cerium in Ce-loaded Y zeolites as revealed by HRTEM and spectroscopic techniques. Microporous and Mesoporous Materials. 100: 276-286
  9. Kim, J.H., Sugi, Y., Matsuzaki, T., Hanaoka, T., Kubota, Y., Tu, X., Matsumoto, M., Nakata, S., Kato, A., Seo, G., Pak, C. (1995). Cerium impregnated H-mordenite as a catalyst for shape-selective isopropylation of naphthalene. Selective deactivation of acid sites on the external surface. Appl. Catal. A: Gen. 131: 15-32
  10. Liu, S., Wang, L., Ohnishi, R., Ichikawa, M. Bifunctional Catalysis of Mo/HZSM-5 in the (1999). Dehydroaromatization of Methane to Benzene and Naphthalene XAFS / TG / DTA / MASS / FTIR Characterization and Supporting Effects. J. Catal. 181:175-188
  11. Kalita, P., Gupta, N.M., Kumar, R. (2007). Synergistic role of acid sites in the Ce-enhanced activity of mesoporous Ce-Al-MCM-41 catalysts in alkylation reactions: FTIR and TPD-ammonia studies. J. Catal. 245: 338-347
  12. Hartford, R.W., Kojima, M., O'Connor, C.T. (1989). Lanthanum Ion Exchange on H-ZSM-5. Ind. Eng. Chem. Res., 28 (12): 1748-1752
  13. Richardson, J.T., Garrait, M., Hung, J.K. (2003). Carbon dioxide reforming with Rh and Pt–Re catalysts dispersed on ceramic foam supports. Appl. Catal. A: Gen. 255 : 69-82
  14. Wahlen, J., Hertogh, S.D., De Vos DE, Nardello, V., Bogaert, S., Aubry, J.M., Alsters, P.L., Jacobs, P.A. (2005). Disproportionation of hydrogen peroxide into singlet oxygen catalyzed by lanthanum-exchanged zeolites. J. Catal. 233: 422-433
  15. Yang, F.K., Wang, S.M., Xia, Y.M., Bi, W.H., Wang, W. (2011). Study on Methanol Aromatization over Zeolite Catalyst H/ZSM-5 Modified with Zinc Ions in Different Contents. Petroleum Sci. Technol. 29(16): 1675-1684
  16. Youming, N.I., Aiming, S.U.N., Xiaoling, W.U., Jianglin, H.U., Tao, L.I., Guangxing, L.I. (2011). Aromatization of Methanol over La/Zn/HZSM-5 Catalysts. Chinese J. Chem. Eng., 19(3): 439-445
  17. Bendahou, K., Cherif, L., Siffert, S., Tidahy, H.L., Benaissa, H., Aboukais, A. (2008). The effect of the use of lanthanum-doped mesoporous SBA-15 on the performance of Pt/SBA-15 and Pd/SBA-15 catalysts for total oxidation of toluene. Appl. Catal. A: Gen. 351: 82-87
  18. Inoue, K., Okabe, K., Liu, Y., Inaba, M., Takahara, I., Murata, K. (2011). Synergistic Effects of Lanthanum and Magnesium Additive to H-ZSM-5 for Ethanol Conversion to Propylene. J. Japan Petrol Inst., 54 (6): 390-394
  19. Bhure, M.H., Kumar, I., Natu, A.D., Chikate, R.C., Rode, C.V. (2008). Phosphotungstic acid on silica with modified acid sites as a solid catalyst for selective cleavage of tert-butyl-dimethylsilyl ethers. Catal Comm. 9: 1863-1868

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