Synergistic Effect of Mixing Ethylene with Propane on the Morphology and Nanostructure of Soot in Laminar Coflow Diffusion Flames
Publication: Journal of Energy Engineering
Volume 148, Issue 1
Abstract
The synergistic effect of mixing ethylene with propane on the nanostructure and morphology evolution of soot in laminar coflow diffusion flames was investigated via combining thermophoresis sampling and transmission electron microscopy (TEM). A strong synergistic effect was observed regarding the soot yields when 0.05 and 0.1 propane ratios were applied. However, it was inhibited at 0.2 propane ratio. At the height above burner (HAB) of 20 mm, the soot size generated from pure ethylene flame was larger than other mixed fuel flames. At the lower and higher HABs, the addition of propane could increase the mean primary soot diameter in different degrees. The high-resolution transmission electron microscopy (HRTEM) analysis showed that the propane addition resulted in larger fringe length, smaller fringe tortuosity, and spacing at 0.1 and 0.2 propane ratios—especially at 0.2 ratio—indicating the soot have a more compact structure and higher degree of graphitization.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This work was supported by the National Natural Science Foundation of China (Grant No. 51776163) and Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2020JM-053). HRTEM analysis was performed at Instrumental Analysis Center of Xi’an Jiaotong University.
References
Apicella, B., P. Pré, M. Alfè, A. Ciajolo, V. Gargiulo, C. Russo, A. Tregrossi, D. Deldique, and J. N. Rouzaud. 2015. “Soot nanostructure evolution in premixed flames by high resolution electron transmission microscopy (HRTEM).” Proc. Combust. Inst. 35 (2): 1895–1902. https://doi.org/10.1016/j.proci.2014.06.121.
Botero, M. L., D. Chen, S. González-Calera, D. Jefferson, and M. Kraft. 2016. “HRTEM evaluation of soot particles produced by the non-premixed combustion of liquid fuels.” Carbon 96 (Jan): 459–473. https://doi.org/10.1016/j.carbon.2015.09.077.
Botero, M. L., Y. Sheng, J. Akroyd, J. Martin, J. A. H. Dreyer, W. Yang, and M. Kraft. 2019. “Internal structure of soot particles in a diffusion flame.” Carbon 141 (Jan): 635–642. https://doi.org/10.1016/j.carbon.2018.09.063.
Chen, H. X., and R. A. Dobbins. 2007. “Crystallogenesis of particles formed in hydrocarbon combustion.” Combust. Sci. Technol. 159 (1): 109–128. https://doi.org/10.1080/00102200008935779.
Chu, H., W. Han, W. Cao, M. Gu, and G. Xu. 2019. “Effect of methane addition to ethylene on the morphology and size distribution of soot in a laminar co-flow diffusion flame.” Energy 166 (Jan): 392–400. https://doi.org/10.1016/j.energy.2018.10.093.
Han, Z., S. Leng, B. Li, and Q. Xia. 2018. “Influence of coupling action of oxygenated fuel and gas circuit oxygen on soot generation in a diesel engine.” J. Energy Eng. 144 (5): 04018048. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000564.
Hardalupas, Y., C. Hong, C. Keramiotis, A. M. K. P. Taylor, D. Touloupis, and G. Vourliotakis. 2018. “Optical diagnostics investigation into the effect of pilot injection dwell time and injection pressure on combustion characteristics and soot emissions in a single-cylinder optical diesel engine.” J. Energy Eng. 144 (5): 04018056. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000571.
Hwang, J. Y., W. Lee, H. G. Kang, and S. H. Chung. 1998. “Synergistic effect of ethylene–propane mixture on soot formation in laminar diffusion flames.” Combust. Flame 114 (3–4): 370–380. https://doi.org/10.1016/S0010-2180(97)00295-2.
Kang, Y., Y. Sun, X. Lu, X. Gou, S. Sun, J. Yan, Y. Song, P. Zhang, Q. Wang, and X. Ji. 2018. “Soot formation characteristics of ethylene premixed burner-stabilized stagnation flame with dimethyl ether addition.” Energy 150 (May): 709–721. https://doi.org/10.1016/j.energy.2018.03.025.
Kelesidis, G. A., M. R. Kholghy, J. Zuercher, J. Robertz, M. Allemann, A. Duric, and S. E. Pratsinis. 2020. “Light scattering from nanoparticle agglomerates.” Powder Technol. 365 (Apr): 52–59. https://doi.org/10.1016/j.powtec.2019.02.003.
Kennedy, I. M. 2007. “The health effects of combustion-generated aerosols.” Proc. Combust. Inst. 31 (2): 2757–2770. https://doi.org/10.1016/j.proci.2006.08.116.
Kholghy, M., M. Saffaripour, C. Yip, and M. J. Thomson. 2013. “The evolution of soot morphology in a laminar coflow diffusion flame of a surrogate for Jet A-1.” Combust. Flame 160 (10): 2119–2130. https://doi.org/10.1016/j.combustflame.2013.04.008.
Lapuerta, M., J. Barba, A. D. Sediako, M. R. Kholghy, and M. J. Thomson. 2017. “Morphological analysis of soot agglomerates from biodiesel surrogates in a coflow burner.” J. Aerosol Sci. 111 (Sep): 65–74. https://doi.org/10.1016/j.jaerosci.2017.06.004.
Lee, S. M., S. S. Yoon, and S. H. Chung. 2004. “Synergistic effect on soot formation in counterflow diffusion flames of ethylene–propane mixtures with benzene addition.” Combust. Flame 136 (4): 493–500. https://doi.org/10.1016/j.combustflame.2003.12.005.
Lin, B., H. Gu, H. Ni, B. Guan, Z. Li, D. Han, C. Gu, C. Shao, Z. Huang, and H. Lin. 2018. “Effect of mixing methane, ethane, propane and ethylene on the soot particle size distribution in a premixed propene flame.” Combust. Flame 193 (Jul): 54–60. https://doi.org/10.1016/j.combustflame.2018.03.002.
Liu, J., J. Yang, P. Sun, L. Zhao, and Z. Liu. 2020. “Experimental study on soot oxidation characteristics of diesel engine with CE-based fuel-borne catalyst fuel.” J. Energy Eng. 146 (3): 04020009. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000659.
Liu, P., Z. Li, and W. L. Roberts. 2019. “The growth of PAHs and soot in the post-flame region.” Proc. Combust. Inst. 37 (1): 977–984. https://doi.org/10.1016/j.proci.2018.05.047.
Luo, M., and D. Liu. 2018. “Effects of dimethyl ether addition on soot formation, evolution and characteristics in flame-wall interactions.” Energy 164 (Dec): 642–654. https://doi.org/10.1016/j.energy.2018.09.012.
Martos, F. J., M. Lapuerta, J. J. Expósito, and E. Sanmiguel-Rojas. 2017. “Overestimation of the fractal dimension from projections of soot agglomerates.” Powder Technol. 311 (Apr): 528–536. https://doi.org/10.1016/j.powtec.2017.02.011.
Oh, K., U. Lee, H. Shin, and E. Lee. 2005. “The evolution of incipient soot particles in an inverse diffusion flame of ethene.” Combust. Flame 140 (3): 249–254. https://doi.org/10.1016/j.combustflame.2004.12.002.
Seong, H. J., and A. L. Boehman. 2012. “Studies of soot oxidative reactivity using a diffusion flame burner.” Combust. Flame 159 (5): 1864–1875. https://doi.org/10.1016/j.combustflame.2012.01.009.
Vander Wal, R. L., and A. J. Tomasek. 2003. “Soot oxidation.” Combust. Flame 134 (Apr): 1–9. https://doi.org/10.1016/S0010-2180(03)00084-1.
Wang, J., M. An, B. F. Yin, B. Wang, P. Chen, and W. Z. He. 2020. “Combustion and emission characteristics of diesel engines using diesel, DMF-diesel, and n-pentanol-diesel fuel blends.” J. Energy Eng. 146 (4): 04020025. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000679.
Wang, Y., and S. H. Chung. 2019. “Soot formation in laminar counterflow flames.” Prog. Energy Combust. Sci. 74 (Sep): 152–238. https://doi.org/10.1016/j.pecs.2019.05.003.
Wang, Y., A. Raj, and S. H. Chung. 2013. “A PAH growth mechanism and synergistic effect on PAH formation in counterflow diffusion flames.” Combust. Flame 160 (9): 1667–1676. https://doi.org/10.1016/j.combustflame.2013.03.013.
Ying, Y., and D. Liu. 2017. “Effects of flame configuration and soot aging on soot nanostructure and reactivity in n-butanol-doped ethylene diffusion flames.” Energy Fuels 32 (1): 607–624. https://doi.org/10.1021/acs.energyfuels.7b00042.
Ying, Y., and D. Liu. 2018. “Nanostructure evolution and reactivity of nascent soot from inverse diffusion flames in , , and He atmospheres.” Carbon 139 (Nov): 172–180. https://doi.org/10.1016/j.carbon.2018.06.047.
Yoon, S. S., D. H. Anh, and S. H. Chung. 2008. “Synergistic effect of mixing dimethyl ether with methane, ethane, propane, and ethylene fuels on polycyclic aromatic hydrocarbon and soot formation.” Combust. Flame 154 (3): 368–377. https://doi.org/10.1016/j.combustflame.2008.04.019.
Yoon, S. S., S. M. Lee, and S. H. Chung. 2005. “Effect of mixing methane, ethane, propane, and propene on the synergistic effect of PAH and soot formation in ethylene-base counterflow diffusion flames.” Proc. Combust. Inst. 30 (1): 1417–1424. https://doi.org/10.1016/j.proci.2004.08.038.
Zhang, H. B., D. Hou, C. K. Law, and X. You. 2016. “Role of carbon-addition and hydrogen-migration reactions in soot surface growth.” J. Phys. Chem. A 120 (5): 683–689. https://doi.org/10.1021/acs.jpca.5b10306.
Zhang, L., K. Yang, R. Zhao, M. Chen, Y. Ying, and D. Liu. 2020. “Nanostructure and reactivity of soot from biofuel 2,5-dimethylfuran pyrolysis with additions.” Frontiers Energy 2020 (Jan): 1–15. https://doi.org/10.1007/s11708-020-0658-3.
Zhou, J. H., C. S. Cheung, W. Z. Zhao, Z. Ning, and C. W. Leung. 2015. “Impact of intake hydrogen enrichment on morphology, structure and oxidation reactivity of diesel particulate.” Appl. Energy 160 (Dec): 442–455. https://doi.org/10.1016/j.apenergy.2015.09.036.
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Published In
Journal of Energy Engineering
Volume 148 • Issue 1 • February 2022
Copyright
© 2021 American Society of Civil Engineers.
History
Received: May 7, 2021
Accepted: Oct 17, 2021
Published online: Nov 26, 2021
Published in print: Feb 1, 2022
Discussion open until: Apr 26, 2022
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