Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
권호 표지

The Study of Toluene Combustion over Palladium-copper/USY Zeolite Catalyst

Pd-Cu/USY 제올라이트상에서 톨루엔 연소반응 연구

  • Lee, Hye Young (Catalyist Center for Green Chemistry, Korea Research Institute of Chemical Technology) ;
  • Jin, Taihuan (Catalyist Center for Green Chemistry, Korea Research Institute of Chemical Technology) ;
  • Hwang, Young Kyu (Catalyist Center for Green Chemistry, Korea Research Institute of Chemical Technology) ;
  • Chang, Jong-San (Catalyist Center for Green Chemistry, Korea Research Institute of Chemical Technology) ;
  • Hwang, Jin-Soo (Catalyist Center for Green Chemistry, Korea Research Institute of Chemical Technology) ;
  • Lee, Chang-Gook (Tobacco Research Group, KT&G Central Research Institute) ;
  • Baek, Shin (Tobacco Research Group, KT&G Central Research Institute) ;
  • Ra, Do-Young (Tobacco Research Group, KT&G Central Research Institute)
  • 이혜영 (한국화학연구원 그린화학촉매연구센터) ;
  • 김태환 (한국화학연구원 그린화학촉매연구센터) ;
  • 황영규 (한국화학연구원 그린화학촉매연구센터) ;
  • 장종산 (한국화학연구원 그린화학촉매연구센터) ;
  • 황진수 (한국화학연구원 그린화학촉매연구센터) ;
  • 이창국 (KT&G 중앙연구원 담배과학연구소) ;
  • 백신 (KT&G 중앙연구원 담배과학연구소) ;
  • 나도영 (KT&G 중앙연구원 담배과학연구소)
  • Received : 2006.07.04
  • Accepted : 2006.07.18
  • Published : 2006.08.31
Download PDF
⟨ Previous Next ⟩

Abstract

The catalytic combustion of toluene over Pd-Cu/USY zeolite has been examined by using FT-IR spectroscopy in a closed system under dry and humid conditions. The catalytic combustion of toluene (700 ppmv) in the temperature range of $80-220^{\circ}C$ has been investigated by using a fixed bed reactor. The Pd-Cu/USY catalyst showed the highest catalytic performance with respects to the PdO-CuO/USY and Pd/USY. Comparing to $PdO/Al_2O_3$ catalysts, the slight improvement in conversion was observed over PdO/USY catalysts under humid condition since USY zeolite is hydrophobic substrate and water give an additional oxygen source to zeolite surface like oxygen. The reduced catalysts showed more enhanced catalytic activity due to the reduced activation energy of combustion of toluene than oxidized catalysts such as PdO/USY and PdO-CuO/USY.

USY 제올라이트에 이원계의 Pd-Cu 복합촉매를 담지하여 FT-IR 분석기로 밀폐계에서 촉매의 표면반응특성을 조사하였다. 700 ppm의 톨루엔 연소반응은 고정반응기를 이용하여 $80{\sim}220^{\circ}C$에서 수행하였으며 톨루엔을 GC로 분석하였다. 촉매활성은 Pd-Cu/USY > Pd/USY > PdO-CuO/USY > PdO/USY > $PdO/Al_2O_3$의 순서임을 알 수 있었다. 저온연소반응에서 수분이 촉매의 활성에 미치는 영향을 관찰하였고 공기의 공급변화를 통하여 촉매표면에 있는 결정격자의 산소가 반응에 참여 여부를 조사하였다. 환원된 촉매들은 톨루엔의 연소활성에너지로 인해 산화된 촉매에 비해 활성이 높았다.

Keywords

Acknowledgement

Supported by : (주)KT&G

References

  1. Hoffmann, D., Hoffmann, I. and El-Bayoumy, K., 'The Less Harmful Cigarette: A Controversial Issue. A Tribute to Ernst L. Wynder,' Chem. Res. Toxicol., 14(7), 767-790(2001) https://doi.org/10.1021/tx000260u
  2. Okumura, K., Kobayashi, T., Tanaka, H. and Niwa, M., 'Toluene Combustion over Palladium Supported on Various Metal Oxide Supports,' Appl. Catal. B, 44(4), 325-331(2003) https://doi.org/10.1016/S0926-3373(03)00101-2
  3. Irusta, S., Pina, M. P., Menéndez, M. and Santamaría, J., 'Catalytic Combustion of Volatile Organic Compounds over La-Based Perovskites,' J. Catal., 179(2), 400-412(1998) https://doi.org/10.1006/jcat.1998.2244
  4. Paulis, M., Peyrard, H. and Montes, M., 'Influence of Chlorine on the Activity and Stability of $Pt/Al_2O_3$ Catalysts in the Complete Oxidation of Toluene,' J. Catal., 199(1), 30-40(2001) https://doi.org/10.1006/jcat.2000.3146
  5. Spivey, J. J., 'Complete Catalytic Oxidation of Volatile Organics,' Ind. Eng. Chem. Res., 26(11), 2165-2180(1987) https://doi.org/10.1021/ie00071a001
  6. Copper, C. D., Alley, F. C., Air Pollution Control, 2nd ed., Waveland Press, 337(1994)
  7. Spivey, J. J., in: J. R. Anderson, M. Boudart (Eds.), Catalysis: A Specialist Periodical Report, vol. 8, The Royal Chemical Society, 157(1989)
  8. Lahousse, C., Bernier, A., Grange, P., Delmon, B., Papaefthimiou, P., Ioannides, T. and Verykios, X., 'Evaluation of ${\gamma}-MnO_2$ as a VOC Removal Catalyst: Comparison with a Noble Metal Catalyst,' J. Catal., 178(1), 214-225(1998) https://doi.org/10.1006/jcat.1998.2148
  9. Ihm, S. K., Jun, Y. D., Kim, D. C. and Jeong, K. E., 'Low-temperature Deactivation and Oxidation State of $Pt/Al_2O_3$ Catalysts for Total Oxidation of n-hexane,' Catal. Today, 93(95), 149-154(2004) https://doi.org/10.1016/j.cattod.2004.06.096
  10. Centeno, M. A., Paulis, M., Montes, M. and Odriozola, J. A., 'Catalytic Combustion of Volatile Organic Compounds on Au/ $CeO_2/Al_2O_3$ and $Au/Al_2O_3$ Catalysts,' Appl. Catal. A., 234, 65-78(2002) https://doi.org/10.1016/S0926-860X(02)00214-4
  11. Mazzocchia, C. and Kaddouri, A., 'On the Activity of Copper Chromite Catalysts in Ethyl Acetate Combustion in the Presence and Absence of Oxygen,' J. Mol. Catal. A: Chem., 204(205), 647-654(2003) https://doi.org/10.1016/S1381-1169(03)00348-0
  12. Terribile, D., Trovarelli, A., Leitenburg, C. D., Primavera, A. and Dolcetti, G., 'Catalytic Combustion of Hydrocarbons with Mn and Cu-doped Ceria-zirconia Solid Solutions,' Catal. Today, 47, 133-140(1999) https://doi.org/10.1016/S0920-5861(98)00292-2
  13. Carnö, J., Ferrandon, M., Björnbom, E. and Järås. S., 'Mixed Manganese Oxide/platinum Catalysts for Total Oxidation of Model Gas from Wood Boilers,' Appl. Catal. A., 155(2), 265-281(1997) https://doi.org/10.1016/S0926-860X(97)80129-9
  14. Alvarez-Galvan, M. C., Pawelec, B., Pena O'Shea, V. A., Fierro J. L. G. and Arias, P. L., 'Formaldehyde/methanol Combustion on Alumina-supported Manganese-palladium Oxide Catalyst,' Appl. Catal. B., 51(2), 83-91(2004) https://doi.org/10.1016/j.apcatb.2004.01.024
  15. Marecot, P., Fakche, A., Kellali, B., Mabilon, G., Prigent, M. and Barbier, J., 'Propane and Propene Oxidation over Platinum and Palladium on Alumina: Effects of Chloride and Water,' Appl. Catal. B., 3(4), 283-294(1994) https://doi.org/10.1016/0926-3373(94)00003-4
  16. Becker, L. and Forster, H., 'Oxidative Decomposition of Benzene and its Methyl Derivatives Catalyzed by Copper and Palladium ion-exchanged Y-type Zeolites,' Appl. Catal. B., 17(1-2), 43-49(1998) https://doi.org/10.1016/S0926-3373(98)00002-2