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Simultaneous Application of Platinum-Supported Alumina Catalyst and Ozone Oxidant for Low-temperature Oxidation of Soot

백금담지 알루미나 촉매와 오존 산화제 동시 적용에 의한 탄소 입자상 물질의 저온 산화반응

  • Lee, Jin Soo (Department of Chemical Engineering and Bioengineering, Kangwon National University) ;
  • Lee, Dae-Won (Department of Chemical Engineering and Bioengineering, Kangwon National University)
  • 이진수 (강원대학교 화학생물공학부) ;
  • 이대원 (강원대학교 화학생물공학부)
  • Received : 2018.06.05
  • Accepted : 2018.06.29
  • Published : 2018.10.01

Abstract

The lowering of temperature for combustion of diesel particulate matters (or diesel soot) is one of the important tasks in automotive industry that is searching for a way to meet up "high-fuel efficiency, low-emission" standard. In this study, it was discussed how the use of ozone over platinum-based catalyst promotes a low-temperature soot oxidation occurred at $150^{\circ}C$. The use of platinum catalyst did not increase oxidation rate largely but was very effective in improving the selectivity of carbon dioxide. The pre-oxidation of NO into $NO_2$ using ozone was rather crucial in improving the oxidation rate of soot at $150^{\circ}C$.

Keywords

Particulate matters;DePM;Ozone;Diesel particulate filter;Continuous regeneration trap

Acknowledgement

Supported by : 한국연구재단, 강원대학교

References

  1. Korean Ministry of Environment, "It Appears if you Understand Correctly: What is Particulate Matters?," Administrative Publication No. 11-1480000-001435-01, April, 2016.
  2. Jeong, J. W., "Current Trends and Future Challenges in Develop- ment of Technology for Automotive Pollution Reduction," News Info. Chem. Eng., 33(4), 431-435(2015).
  3. USDRIVE Workshop Report (2012): "Future Automotive After- treatment Solutions: The $150^{\circ}C$ Challenge," https://www.pnnl.gov/main/publications/external/technical_ Reports/PNNL-22815.pdf.
  4. DieselNet Technology: Emission Aftertreatment/Catalyst Technologies/Diesel Catalysts/Diesel Oxidation Catalyst, https://www.diesel-net.com/tech/cat_doc.php
  5. Park, S. H., Lee, K.-Y. and Cho, S. J., "Catalytic Technology for $NO_x$ Abatement using Ammonia," Clean Technol., 22(4), 211- 224(2016). https://doi.org/10.7464/ksct.2016.22.4.211
  6. DieselNet Technology: Emission Aftertreatment/Diesel Filter Systems/CRT Filter, https://www.dieselnet.com/tech/dpf_crt.php.
  7. Jeong, H., Bae, J., Han, J. W. and Lee, H., "Promoting Effects of Hydrothermal Treatment on the Activity and Durability of Pd/$CeO_2$ Catalysts for CO Oxidation," ACS Catal., 7(10), 7097-7105 (2017). https://doi.org/10.1021/acscatal.7b01810
  8. Bekki, S., "On the Possible Role of Aircraft-generated Soot in the Middle Latitude Ozone Depletion," J. Geophys. Res., 102(10), 751-758(1997).
  9. Hirata, H., Kakanohara, M. and Ibe, M., "Exhaust gas Purification System Utilizing Ozone," US Patent 8,051,643 B2(2011).
  10. Okubo, M., Kuroki, T., Miyairi, Y. and Yamamoto, T., "Low-temperature Soot Incineration of Diesel Particulate Filter Using Remote Nonthermal Plasma Induced by a Pulsed Barrier Discharge," 40(6), 1504-1512(2004). https://doi.org/10.1109/TIA.2004.836129
  11. Okubo, M., Arita, N., Kuroki, T., Yoshida, K. and Yamamoto, T., "Total Diesel Emission Control Technology Using Ozone Injection and Plasma Desorption," Plasma Chem. Plasma Process, 28, 173-187(2008). https://doi.org/10.1007/s11090-008-9121-7
  12. Itoh, Y., Sakakibara, Y. and Shinjoh, H., "Low-temperature Oxi- dation of Particulate Matter Using Ozone," RSC Advances, 4, 19144-19149(2014). https://doi.org/10.1039/C4RA01003E
  13. Jeguirim, M., Tschamber, V. and Brilhac, J. F. and Ehrburger, P., "Oxidation Mechanism of Carbon Black by $NO_2$ : Effect of Water Vapour," Fuel, 84, 1949-1956(2005). https://doi.org/10.1016/j.fuel.2005.03.026
  14. Wang, Z., Zhou, J., Fan, J. and Cen, K., "Direct Numerical Sim- ulation of Ozone Injection Technology for NOx," Energy Fuels, 20, 2432-2438(2006). https://doi.org/10.1021/ef0603176
  15. Fino, D., Bensaid, S., Piumetti, M. and Russo, N., "A Review on the Catalytic Combustion of Soot in Diesel Particulate Filters for Automotive Applications: From Powder Catalysts to Structured Reactors," Appl. Catal. A: Gen., 509, 75-96(2016). https://doi.org/10.1016/j.apcata.2015.10.016
  16. Diesel Net Technology: Emission Aftertreatment/Diesel Filter Systems/Catalyzed Diesel Filters, https://www.dieselnet.com/tech/dpf_cat.php.
  17. Tighe, C. J., Twigg, M. V., Hayhurst, A. N. and Dennis, J. S., "Adsorption and Reaction of $NO_2$ on Carbon Black and Diesel Soot at Near-ambient Temperatures," Ind. Eng. Chem. Res., 50, 10480-10492(2011). https://doi.org/10.1021/ie2009982
  18. Azambre, B., Collura, S., Trichard, J. M. and Weber, J. V., "Nature and Thermal Stability of Adsorbed Intermediates Formed During the Reaction of Diesel Soot with Nitrogen Dioxide," Appl. Surf. Sci., 253, 2296-2303(2006). https://doi.org/10.1016/j.apsusc.2006.04.027
  19. Lin, F., Wang, Z., Ma, Q., He, Y., Whiddon, R., Zhu, Y. and Liu, J., "$N_2O_5$ Formation Mechanism During the Ozone-based Low- temperature Oxidation deNOx Process," Energy Fuels, 30, 5101- 5107(2016). https://doi.org/10.1021/acs.energyfuels.6b00824
  20. Mul, G., Neeft, J. P. A., Kaptejin, F. and Moulijn, J. A., "The Formation of Carbon Surface Oxygen Complexes by Oxygen and Ozone: The Effect of Transition Metal Oxides," Carbon, 36(9), 1269-1276(1998). https://doi.org/10.1016/S0008-6223(97)00209-1