Abstract
To reveal the effect of reaction temperature on the reduction of diesel particulate matter (PM) by non-thermal plasma (NTP) using oxygen as a gas source. The changes in the microcrystalline structure and the elemental state of PM before and after NTP oxidation at different temperatures were explored by Raman and X-ray photoelectron spectroscopy. After NTP oxidation, the disorder in the PM microcrystal structure and the amorphous carbon structure was reduced. The full width at half maximum (FWHM) of the D1 and D3 peaks decreased, and the FWHM of the G peak increased slightly. During the oxidation of PM, the carbon microcrystals grew and became restructured, and the graphitization of PM increased. After NTP oxidation, the content of O in PM increased as the reaction temperature increased, resulting in a gradual change in the binding form of O with C from C-O to C=O. The ability of temperature rise to promote the oxidation activity of NTP was gradually weakened for the thermal decomposition of NTP active substances. The microcrystalline structure and the occurrence state of C and O of PM changed with reaction temperature, indicating that the oxidizability of NTP on PM differed at different reaction temperatures.
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Abbreviations
- NTP:
-
Non-thermal plasma
- DPF:
-
Diesel particulate filter
- PM:
-
Particulate matter
- O3 :
-
Ozone
- O2 :
-
Oxygen
- O1:
-
PM original sample at 80 °C
- O2:
-
PM original sample at 120 °C
- O3:
-
PM original sample at 160 °C
- N1:
-
PM sample oxidized by NTP at 80 °C
- N2:
-
PM sample oxidized by NTP at 120 °C
- N3:
-
PM sample oxidized by NTP at 160 °C
- D1 Peak:
-
The Disorder 1 peak
- D2 Peak:
-
The Disorder 2 peak
- D3 Peak:
-
The Disorder 3 peak
- D4 Peak:
-
The Disorder 4 peak
- G Peak:
-
The Graphite peak
- FWHM:
-
The full width at half maximum
- R3:
-
R3 = ID3/(IG + ID2 + ID3)
- ID1/IG:
-
The peak intensity ratio of the D1 peak to the G peak
- C-O:
-
Carbon-oxygen single bond
- C=O:
-
Carbon-oxygen double bonds
- O-C=O:
-
Carboxyl carbon
References
Agudelo, J. R., Alvarez, A. and Armas, O. (2014). Impact of crude vegetable oils on the oxidation reactivity and nanostructure of diesel particulate matter. Combustion and Flame 161, 11, 2904–2915.
Babaie, M., Davari, P., Zare, F., Rahman, M., Rahimzadeh, H., Ristovski, Z. and Brown, R. (2013). Effect of pulsed power on particle matter in diesel engine exhaust using a DBD plasma reactor. IEEE Trans. Plasma Science 41, 8, 2349–2358.
Babaie, M., Davari, P., Talebizadeh, P., Zare, F., Rahimzadeh, H., Ristovski, Z. and Brown, R. (2015). Performance evaluation of non-thermal plasma on particulate matter, ozone and CO2 correlation for diesel exhaust emission reduction. Chemical Engineering J., 276, 240–248.
Babaie, M., Kishi, T., Arai, M., Zama, Y., Furuhata, T., Ristovski, Z. and Brown, R. (2016). Influence of non-thermal plasma after-treatment technology on diesel engine particulate matter composition and NOx concentration. Int. J. Environmental Science and Technology 13, 1, 221–230.
Beyssac, O., Goffé, B., Petitet, J. P., Froigneux, E., Moreau, M. and Rouzaud, J. N. (2003). On the characterization of disordered and heterogeneous carbonaceous materials by Raman spectroscopy. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 59, 10, 2267–2276.
Cadrazco, M., Santamaria, A. and Agudelo, J. R. (2019). Chemical and nanostructural characteristics of the particulate matter produced by renewable diesel fuel in an automotive diesel engine. Combustion and Flame, 203, 130–142.
Chen, L., Hu, X., Wang, J. and Yu, Y. (2019). Impacts of alternative fuels on morphological and nanostructural characteristics of soot emissions from an aviation piston engine. Environmental Science & Technology 53, 8, 4667–4674.
Dippel, B., Jander, H. and Heintzenberg, J. (1999). NIR FT Raman spectroscopic study of flame soot. Physical Chemistry Chemical Physics 1, 20, 4707–4712.
Fan, R., Cai, Y., Shi, Y. and Cui, Y. (2019). Effect of the reaction temperature on the removal of diesel particulate matter by ozone injection. Plasma Chemistry and Plasma Processing 39, 1, 143–163.
Fang, J., Zhang, Q., Meng, Z., Luo, Y., Ou, J., Du, Y. and Zhang, Z. (2020). Effects of ash composition and ash stack heights on soot deposition and oxidation processes in catalytic diesel particulate filter. J. Energy Institute 93, 5, 1942–1950.
Fang, J., Meng, Z., Li, J., Du, Y., Qin, Y., Jiang, Y., Bai, W. and Chase, G. G. (2019). The effect of operating parameters on regeneration characteristics and particulate emission characteristics of diesel particulate filters. Applied Thermal Engineering, 148, 860–867.
Ferrari, A. C. and Robertson, J. (2000). Interpretation of Raman spectra of disordered and amorphous carbon. Physical Review B 61, 20, 14095.
Gao, J., Tian, G., Ma, C., Chen, J. and Huang, L. (2018). Physicochemical property changes during oxidation process for diesel PM sampled at different tailpipe positions. Fuel, 219, 62–68.
Geng, W., Kumabe, Y., Nakajima, T., Takanashi, H. and Ohkl, A. (2009). Analysis of hydrothermally-treated and weathered coals by X-ray photoelectron spectroscopy (XPS). Fuel 88, 4, 644–649.
Gilham, R. J., Spencer, S. J., Butterfield, D., Seah, M. P. and Qulncey, P. G. (2008). On the applicability of XPS for quantitative total organic and elemental carbon analysis of airborne particulate matter. Atmospheric Environment 42, 16, 3888–3891.
Han, W. H., Cai, Y. X., Li, X. H., Wang, J., Wang, J., Li, K. H. and Wei, X. (2012). Raman spectroscopy analysis of carbon structural evolution of diesel particulate matters with the treatment of nonthermal plasma. Spectroscopy & Spectral Analysis 32, 8, 2152–2156.
Hu, J., Hu, Z., Zhang, J. and Shuai, S. (2016). XPS analysis of the soot oxidation characteristics with Si-A catalyst effects. J. Automotive Safety and Energy 7, 2, 236.
Ivleva, N. P., Mckeon, U., Niessner, R. and Pöschl, U. (2007). Raman micro spectroscopic analysis of size-resolved atmospheric aerosol particle samples collected with an ELPI: Soot, humic-like substances, and inorganic compounds. Aerosol Science and Technology 41, 7, 655–671.
Jaramillo, I. C., Gaddam, C. K., Vander Wal, R. L., Huang, C. H., Levinthal, J. D. and Lighty, J. S. (2014). Soot oxidation kinetics under pressurized conditions. Combustion and Flame 161, 11, 2951–2965.
Ji, L., Cai, Y., Shi, Y., Fan, R., Wang, W. and Chen, Y. (2020). Effects of nonthermal plasma on microstructure and oxidation characteristics of particulate matter. Environmental Science & Technology 54, 4, 2510–2519.
Kalghatgi, G. (2019). Development of fuel/engine systems-the way forward to sustainable transport. Engineering 5, 3, 510–518.
Kim, K. J., Si, W. S., Jin, D. Y., Kim, J. H., Cho, J. H., Baek, S. H., Myung, C. L. and Park, S. S. (2020). Characterization of engine oil additive packages on diesel particulate emissions. J. Mechanical Science and Technology 34, 2, 931–939.
Knauer, M., Schuster, M. E., Su, D., Schlögl, R., Niessner, R. and Ivleva, N. P. (2009). Soot structure and reactivity analysis by Raman microspectroscopy, temperature-programmed oxidation, and high-resolution transmission electron microscopy. J. Physical Chemistry A 113, 50, 13871–13880.
Kuwahara, T., Nishii, S., Kuroki, T. and Okubo, M. (2013). Complete regeneration characteristics of diesel particulate filter using ozone injection. Applied Energy, 111, 652–656.
Lin, H., Huang, Z., Shangguan, W. and Peng, X. (2007). Temperature-programmed oxidation of diesel particulate matter in a hybrid catalysis-plasma reactor. Proc. Combustion Institute 31, 2, 3335–3342.
Patel, M., Ricardo, C. L. A., Scardi, P. and Aswath, P. B. (2012). Morphology, structure and chemistry of extracted diesel soot-Part I: Transmission electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and synchrotron X-ray diffraction study. Tribology Int., 52, 29–39.
Pu, X., Cai, Y., Shi, Y., Wang, J., Gu, L., Tian, J. and Li, W. (2018). Diesel particulate filter (DPF) regeneration using non-thermal plasma induced by dielectric barrier discharge. J. Energy Institute 91, 5, 655–667.
Ranji-Burachaloo, H., Masoomi-Godarzi, S., Khodadadi, A. A. and Mortazavi, Y. (2016). Synergetic effects of plasma and metal oxide catalysts on diesel soot oxidation. Applied Catalysis B: Environmental, 182, 74–84.
Sadezky, A., Muckenhuber, H., Grothe, H., Niessner, R. and Poschl, U. (2005). Raman micro spectroscopy of soot and related carbonaceous materials: Spectral analysis and structural information. Carbon 43, 8, 1731–1742.
Seong, H. J. and Boehman, A. L. (2013). Evaluation of Raman parameters using visible Raman microscopy for soot oxidative reactivity. Energy & Fuels 27, 3, 1613–1624.
Sheng, C. (2007). Char structure characterised by Raman spectroscopy and its correlations with combustion reactivity. Fuel 86, 15, 2316–2324.
Shi, Y. Cai, Y., Fan, R., Cui, Y., Chen, Y. and Ji, L. (2019a). Characterization of soot inside a diesel particulate filter during a nonthermal plasma promoted regeneration step. Applied Thermal Engineering, 150, 612–619.
Shi, Y., Cai, Y., Li, X., Chen, Y., Ding, D. and Tang, W. (2014). Mechanism and method of DPF regeneration by oxygen radical generated by NTP technology. Int. J. Automotive Technology 15, 6, 871–876.
Shi, Y., Cai, Y., Li, X., Ji, L., Chen, Y. and Wang, W. (2019b). Evolution of diesel particulate physicochemical properties using nonthermal plasma. Fuel, 253, 1292–1299.
Shi, Y., Cai, Y., Li, X., Pu, X., Zhao, N. and Wang, W. (2019c). Effect of the amount of trapped particulate matter on diesel particulate filter regeneration performance using non-thermal plasma assisted by exhaust waste heat. Plasma Science and Technology 22, 1, 015504.
Smith, D. M. and Chughtai, A. R. (1995). The surface structure and reactivity of black carbon. Colloids and Surfaces A: Physicochemical and Engineering Aspects 105, 1, 47–77.
Smith, M., Scudiero, L., Espinal, J., McEwen, J. S. and Garcia-Perez, M. (2016). Improving the deconvolution and interpretation of XPS spectra from chars by ab initio calculations. Carbon, 110, 155–171.
Song, J., Alam, M., Boehman, A. L. and Kim, U. (2006). Examination of the oxidation behavior of biodiesel soot. Combustion and Flame 146, 4, 589–604.
Tuinstra, F. and Koenig, J. L. (1970). Raman spectrum of graphite. J. Chemical Physics 53, 3, 1126–1130.
Vander Wal, R. L., Bryg, V. M. and Hays, M. D. (2011). XPS analysis of combustion aerosols for chemical composition, surface chemistry, and carbon chemical state. Analytical Chemistry 83, 6, 1924–1930.
Wang, L., Song, C., Song, J., Lv, G., Pang, H. and Zhang, W. (2013). Aliphatic C-H and oxygenated surface functional groups of diesel in-cylinder soot: Characterizations and impact on soot oxidation behavior. Proc. Combustion Institute 34, 2, 3099–3106.
Wang, P., Gu, W., Lei, L., Cai, Y. and Li, Z. (2015). Microstructural and components evolution mechanism of particular matter from diesel engines with non-thermal plasma technology. Applied Thermal Engineering, 91, 1–10.
Wang, Y., Alsmeyer, D. C. and McCreery, R. L. (2002). Raman spectroscopy of carbon materials: structural basis of observed spectra. Chemistry Materials 2, 5, 557–563.
Wang, Y., Liang, X., Tang, G., Chen, Y., Dong, L. and Shu, G. (2017a). Impact of lubricating oil combustion on nanostructure, composition and graphitization of diesel particles. Fuel, 190, 237–244.
Wang, Y., Liang, X., Wang, K., Wang, Y., Dong, L. and Shu, G. (2016). Effect of base oil on the nanostructure and oxidation characteristics of diesel particulate matter. Applied Thermal Engineering, 106, 1311–1318.
Wang, Z., Yang, F. L., Zhang, J., Zhao, Y. and Qu, L. (2017b). Impact of EGR rate on soot nanostruction from a diesel engine fueled with biodiesel. Spectroscopy & Spectral Analysis, 37, 1973–1979.
Wyzga, R. E. and Rohr, A. C. (2015). Long-term particulate matter exposure: Attributing health effects to individual PM components. J. Air & Waste Management Association 65, 5, 523–543.
Xia, W., Yang, J. and Liang, C. (2014). Investigation of changes in surface properties of bituminous coal during natural weathering processes by XPS and SEM. Applied Surface Science, 293, 293–298.
Yao, S., Shen, X., Zhang, X., Han, J., Wu, Z., Tang, X., Lu, H. and Jiang, B. (2017). Sustainable removal of particulate matter from diesel engine exhaust at low temperature using a plasma-catalytic method. Chemical Engineering J., 327, 343–350.
Zouaoui, N., Labaki, M. and Jeguirim, M. (2014). Diesel soot oxidation by nitrogen dioxide, oxygen and water under engine exhaust conditions: Kinetics data related to the reaction mechanism. Comptes Rendus Chimie 17, 7–8, 672–680.
Acknowledgement
This research was supported by the National Natural Science Foundation of China (51806085, 51676089), China Postdoctoral Science Foundation Project (2018 M642175), Jiangsu Province Postdoctoral Research Funding Project (2018K101C), Jiangsu Province Double Innovation Program and Jiangsu University Young Talent Research Funding Project
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Lu, Y., Shi, Y., Cai, Y. et al. Microcrystal Structure and C/O Element Occurrence State of Diesel PM by Non-Thermal Plasma Oxidation at Different Reaction Temperatures. Int.J Automot. Technol. 22, 1711–1721 (2021). https://doi.org/10.1007/s12239-021-0147-7
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DOI: https://doi.org/10.1007/s12239-021-0147-7