백금담지 알루미나 촉매와 오존 산화제 동시 적용에 의한 탄소 입자상 물질의 저온 산화반응 = Simultaneous Application of Platinum-Supported Alumina Catalyst and Ozone Oxidant for Low-temperature Oxidation of Soot

다국어 초록 (Multilingual 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 ℃. 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 NO₂ using ozone was rather crucial in improving the oxidation rate of soot at 150 ℃.

참고문헌 (Reference)

1 박순희, "암모니아를 환원제로 이용한 NOx 저감 촉매 기술" 한국청정기술학회 22 (22): 211-224, 2016

2 "USDRIVE Workshop Report;Future Automotive After- treatment Solutions: The $150^{\circ}C$ Challenge" 2012

3 Okubo, M., "Total Diesel Emission Control Technology Using Ozone Injection and Plasma Desorption" 28 : 173-187, 2008

4 Mul, G., "The Formation of Carbon Surface Oxygen Complexes by Oxygen and Ozone: The Effect of Transition Metal Oxides" 36 (36): 1269-1276, 1998

5 Jeong, H., "Promoting Effects of Hydrothermal Treatment on the Activity and Durability of Pd/$CeO_2$ Catalysts for CO Oxidation" 7 (7): 7097-7105, 2017

6 Jeguirim, M., "Oxidation Mechanism of Carbon Black by $NO_2$ : Effect of Water Vapour" 84 : 1949-1956, 2005

7 Bekki, S., "On the Possible Role of Aircraft-generated Soot in the Middle Latitude Ozone Depletion" 102 (102): 751-758, 1997

8 Azambre, B., "Nature and Thermal Stability of Adsorbed Intermediates Formed During the Reaction of Diesel Soot with Nitrogen Dioxide" 253 : 2296-2303, 2006

9 Okubo, M., "Low-temperature Soot Incineration of Diesel Particulate Filter Using Remote Nonthermal Plasma Induced by a Pulsed Barrier Discharge" 40 (40): 1504-1512, 2004

10 Itoh, Y., "Low-temperature Oxi- dation of Particulate Matter Using Ozone" 4 : 19144-19149, 2014

11 Korean Ministry of Environment, "It Appears if you Understand Correctly: What is Particulate Matters?, Administrative Publication No. 11-1480000-001435-01" 2016

12 Hirata, H., "Exhaust gas Purification System Utilizing Ozone, US Patent 8,051,643 B2"

13 Wang, Z., "Direct Numerical Sim- ulation of Ozone Injection Technology for NOx" 20 : 2432-2438, 2006

14 "DieselNet Technology: Emission Aftertreatment/Diesel Filter Systems/CRT Filter"

15 "DieselNet Technology: Emission Aftertreatment/Catalyst Technologies/Diesel Catalysts/Diesel Oxidation Catalyst"

16 "Diesel Net Technology: Emission Aftertreatment/Diesel Filter Systems/Catalyzed Diesel Filters"

17 Jeong, J. W., "Current Trends and Future Challenges in Develop- ment of Technology for Automotive Pollution Reduction" 33 (33): 431-435, 2015

18 Tighe, C. J., "Adsorption and Reaction of $NO_2$ on Carbon Black and Diesel Soot at Near-ambient Temperatures" 50 : 10480-10492, 2011

19 Fino, D., "A Review on the Catalytic Combustion of Soot in Diesel Particulate Filters for Automotive Applications: From Powder Catalysts to Structured Reactors" 509 : 75-96, 2016

20 Lin, F., "$N_2O_5$ Formation Mechanism During the Ozone-based Low- temperature Oxidation deNOx Process" 30 : 5101- 5107, 2016