Experimental study on the suppression of methane-air explosion by CF<sub>3</sub>I and CO<sub>2</sub>

CHENG Fangming; NAN Fan; XIAO Yang; LUO Zhenmin; NIU Qiaoxia

doi:10.11883/bzycj-2021-0386

Volume 42 Issue 6

Jun. 2022

Turn off MathJax

Article Contents

Article Navigation > Explosion And Shock Waves > 2022 > 42(6): 065402

CHENG Fangming, NAN Fan, XIAO Yang, LUO Zhenmin, NIU Qiaoxia. Experimental study on the suppression of methane-air explosion by CF3I and CO2[J]. Explosion And Shock Waves, 2022, 42(6): 065402. doi: 10.11883/bzycj-2021-0386

Citation:

CHENG Fangming, NAN Fan, XIAO Yang, LUO Zhenmin, NIU Qiaoxia. Experimental study on the suppression of methane-air explosion by CF₃I and CO₂[J]. Explosion And Shock Waves, 2022, 42(6): 065402. doi: 10.11883/bzycj-2021-0386

Citation:

PDF( 2440 KB)

Experimental study on the suppression of methane-air explosion by CF₃I and CO₂

doi: 10.11883/bzycj-2021-0386

CHENG Fangming^{1, 2
,},
NAN Fan^{1, 2
,
,},
XIAO Yang^{1, 3},
LUO Zhenmin^{1, 2},
NIU Qiaoxia^{1, 2}

1.
School of Safety Science and Engineering, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China
2.
Xi’an Key Laboratory of Urban Public Safety and Fire Rescue, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China
3.
Shaanxi Key Laboratory of Prevention and Control of Coal Fire, Xi’an University of Science and Technology, Xi’an 710054, Shaanxi, China

Received Date: 2021-09-15
Rev Recd Date: 2022-04-26

Available Online: 2022-05-07

Publish Date: 2022-06-24

Abstract

Abstract

To explore the inhibitory effect of the combined use of trifluoroiodomethane and carbon dioxide on methane explosion, a 20-L spherical explosion experimental system was used to carry out explosion experiments under different methane volume fractions when the two were used alone and in combination. The variation law of methane explosion pressure characteristics under different working conditions was studied. The results show that after adding trifluoroiodomethane and carbon dioxide, the explosion limit of methane is gradually reduced, and the effect of trifluoroiodomethane on the explosion limit of methane is more obvious. When the volume fractions of trifluoroiodomethane and carbon dioxide reached 5.5% and 32.0%, respectively, the upper and lower explosion limits of methane coincided, and at this moment the corresponding critical oxygen volume fractions were 17.85% and 12.50%, respectively. The affection mechanism of trifluoroiodomethane on the explosion limit of methane is different from that of carbon dioxide, and it does not exert an inhibitory effect mainly by reducing oxygen. The inhibition effect of trifluoroiodomethane on methane explosion is significantly better than that of carbon dioxide. Compared with the decrease ratio of the maximum explosion pressure and the maximum explosion pressure rise rate of 9.5% methane, the suppression explosion effects of 5% trifluoroiodomethane are about 6 times and 5 times as strong as those of the same amount of carbon dioxide. After carbon dioxide is mixed with a small amount of trifluoroiodomethane, the suppression explosion effect is greatly improved. Furthermore, the higher ratio of adding trifluoroiodomethane, the more obvious the effect. When the volume fraction of trifluoroiodomethane is greater than or equal to 1.0%, the magnitude of the drop in the maximum explosion pressure of methane has increased due to the increment of carbon dioxide units. It is indicated that the addition of trifluoroiodomethane has the dual effect of improving the explosion suppression effect and enhancing the explosion suppression efficiency when carbon dioxide is used to suppress methane explosion.
- methane explosion,
- trifluoromethyl iodide,
- carbon dioxide,
- explosion pressure,
- explosion suppression

FullText(HTML)

References(32)

References

[1]	张景林. 气体、粉尘爆炸灾害及其安全技术 [J]. 中国安全科学学报, 2002, 12(5): 9–14. DOI: 10.16265/j.cnki.issn1003-3033.2002.05.003. ZHANG J L. Explosion disaster due to gas & dust and its safety technology [J]. China Safety Science Journal, 2002, 12(5): 9–14. DOI: 10.16265/j.cnki.issn1003-3033.2002.05.003.
[2]	MITU M, PRODAN M, GIURCAN V, et al. Influence of inert gas addition on propagation indices of methane-air deflagrations [J]. Process Safety and Environmental Protection, 2016, 102: 513–522. DOI: 10.1016/j.psep.2016.05.007.
[3]	路长, 刘洋, 王鸿波, 等. CO₂、H₂对CH₄/Air预混气爆炸特性的影响 [J]. 安全与环境学报, 2018, 18(5): 1788–1795. DOI: 10.13637/j.issn.1009-6094.2018.05.024. LU C, LIU Y, WANG H B, et al. Experimental study of the effects of CO₂/H₂ on the characteristic features of methane/air bursts [J]. Journal of Safety and Environment, 2018, 18(5): 1788–1795. DOI: 10.13637/j.issn.1009-6094.2018.05.024.
[4]	WU S Y, LIN N K, SHU C M. Effects of flammability characteristics of methane with three inert gases [J]. Process Safety Progress, 2010, 29(4): 349–352. DOI: 10.1002/prs.10411.
[5]	GAO H B, QU Z G, TAO W Q, et al. Experimental investigation of methane/(Ar, N₂, CO₂)-air mixture combustion in a two-layer packed bed burner [J]. Experimental Thermal and Fluid Science, 2013, 44: 599–606. DOI: 10.1016/j.expthermflusci.2012.08.023.
[6]	LIANG Y T, ZENG W, HU E J. Experimental study of the effect of nitrogen addition on gas explosion [J]. Journal of Loss Prevention in the Process Industries, 2013, 26(1): 1–9. DOI: 10.1016/j.jlp.2012.08.002.
[7]	张迎新, 吴强, 刘传海, 等. 惰性气体N₂/CO₂抑制瓦斯爆炸实验研究 [J]. 爆炸与冲击, 2017, 37(5): 906–912. DOI: 10.11883/1001-1455(2017)05-0906-07. ZHANG Y X, WU Q, LIU C H, et al. Experimental study on coal mine gas explosion suppression with inert gas N₂/CO₂ [J]. Explosion and Shock Waves, 2017, 37(5): 906–912. DOI: 10.11883/1001-1455(2017)05-0906-07.
[8]	WANG Z R, NI L, LIU X, et al. Effects of N₂/CO₂ on explosion characteristics of methane and air mixture [J]. Journal of Loss Prevention in the Process Industries, 2014, 31: 10–15. DOI: 10.1016/j.jlp.2014.06.004.
[9]	LI M H, XU J C, WANG C J, et al. Thermal and kinetics mechanism of explosion mitigation of methane-air mixture by N₂/CO₂ in a closed compartment [J]. Fuel, 2019, 255: 115747. DOI: 10.1016/j.fuel.2019.115747.
[10]	CHEN D G, YAO Y, DENG Y J. The influence of N₂/CO₂ blends on the explosion characteristics of stoichiometric methane-air mixture [J]. Process Safety Progress, 2019, 38(2): e12015. DOI: 10.1002/prs.12015.
[11]	DI BENEDETTO A, DI SARLI V, SALZANO E, et al. Explosion behavior of CH₄/O₂/N₂/CO₂ and H₂/O₂/N₂/CO₂ mixtures [J]. International Journal of Hydrogen Energy, 2009, 34(16): 6970–6978. DOI: 10.1016/j.ijhydene.2009.05.120.
[12]	ZENG W, MA H, LIANG Y T, et al. Experimental and modeling study on effects of N₂ and CO₂ on ignition characteristics of methane/air mixture [J]. Journal of Advanced Research, 2015, 6(2): 189–201. DOI: 10.1016/j.jare.2014.01.003.
[13]	周福宝, 王德明, 章永久, 等. 含氮气三相泡沫惰化火区的机理及应用研究 [J]. 煤炭学报, 2005, 30(4): 443–446. DOI: 10.3321/j.issn:0253-9993.2005.04.008. ZHOU F B, WANG D M, ZHANG Y J, et al. Inerting mechanism of three-phase foam containing nitrogen and its application to underground fire zone [J]. Journal of China Coal Society, 2005, 30(4): 443–446. DOI: 10.3321/j.issn:0253-9993.2005.04.008.
[14]	罗振敏, 康凯. CO₂抑制甲烷-空气链式爆炸微观机理的仿真分析 [J]. 中国安全科学学报, 2015, 25(5): 42–48. DOI: 10.16265/j.cnki.issn1003-3033.2015.05.008. LUO Z M, KANG K. Simulative analysis of microscopic mechanism of CO₂ inhibiting methane-air chain explosion [J]. China Safety Science Journal, 2015, 25(5): 42–48. DOI: 10.16265/j.cnki.issn1003-3033.2015.05.008.
[15]	HALTER F, FOUCHER F, LANDRY L, et al. Effect of dilution by nitrogen and/or carbon dioxide on methane and iso-octane air flames [J]. Combustion Science & Technology, 2009, 181(6): 813–827. DOI: 10.1080/00102200902864662.
[16]	邱雁, 高广伟, 罗海珠. 充注惰气抑制矿井火区瓦斯爆炸机理 [J]. 煤矿安全, 2003, 34(2): 8–11. DOI: 10.3969/j.issn.1003-496X.2003.02.005. QIU Y, GAO G W, LUO H Z. Mechanism of pumping inert gas into mine fire area for inhibition of methane explosion [J]. Safety in Coal Mines, 2003, 34(2): 8–11. DOI: 10.3969/j.issn.1003-496X.2003.02.005.
[17]	PAGLIARO J L, LINTERIS G T, SUNDERLAND P B, et al. Combustion inhibition and enhancement of premixed methane-air flames by halon replacements [J]. Combustion and Flame, 2015, 162(1): 41–49. DOI: 10.1016/j.combustflame.2014.07.006.
[18]	WILLIAMS B A, L’ESPÉRANCE D M, FLEMING J W. Intermediate species profiles in low-pressure methane/oxygen flames inhibited by 2-H heptafluoropropane: comparison of experimental data with kinetic modeling [J]. Combustion & Flame, 2000, 120(1/2): 160–172. DOI: 10.1016/S0010-2180(99)00081-4.
[19]	薛少谦. 七氟丙烷抑制甲烷空气预混气体爆炸的实验研究 [J]. 矿业安全与环保, 2017, 44(1): 5–8. DOI: 10.3969/j.issn.1008-4495.2017.01.002. XUE S Q. Experimental research on premixed methane-air explosion suppression with heptafluoropropane [J]. Mining Safety & Environmental Protection, 2017, 44(1): 5–8. DOI: 10.3969/j.issn.1008-4495.2017.01.002.
[20]	李一鸣. 七氟丙烷抑制甲烷-空气爆炸的实验研究[D]. 辽宁大连: 大连理工大学, 2018. LI Y M. Experimental study of suppressing the methane/air explosion by heptafluoropropane [D]. Dalian, Liaoning, China: Dalian University of Technology, 2018.
[21]	詹平, 钱华, 刘大斌, 等. CF₃I对R290的抑爆性能研究 [J]. 工业安全与环保, 2018, 44(9): 49–51. DOI: 10.3969/j.issn.1001-425X.2018.09.013. ZHAN P, QIAN H, LIU D B, et al. Study of the explosion suppression performance of CF₃I on R290 [J]. Industrial Safety and Environmental Protection, 2018, 44(9): 49–51. DOI: 10.3969/j.issn.1001-425X.2018.09.013.
[22]	MATHIEU O, GOULIER J, GOURMEL F, et al. Experimental study of the effect of CF₃I addition on the ignition delay time and laminar flame speed of methane, ethylene, and propane [J]. Proceedings of the Combustion Institute, 2015, 35(3): 2731–2739. DOI: 10.1016/j.proci.2014.05.096.
[23]	LUO C M, DLUGOGORSKI B, KENNEDY E, et al. Inhibition of premixed methane-air flames with CF₃I [J]. Chemical Product and Process Modeling, 2009, 4(3): Article 12. DOI: 10.2202/1934-2659.1448.
[24]	BABUSHOK V, NOTO T, BURGESS D R F, et al. Influence of CF₃I, CF₃Br, and CF₃H on the high-temperature combustion of methane [J]. Combustion and Flame, 1996, 107(4): 351–367. DOI: 10.1016/S0010-2180(96)00052-1.
[25]	LUO C M, DLUGOGORSKI B Z, KENNEDY E M. Influence of CF₃I and CBrF₃ on methanol-air and methane-air premixed flames [J]. Fire Technology, 2008, 44(3): 221–237. DOI: 10.1007/s10694-007-0033-5.
[26]	NOTO T, BABUSHOK V, BURGESS D R JR, et al. Effect of halogenated flame inhibitors on C₁-C₂ organic flames [J]. Symposium (International) on Combustion, 1996, 26(1): 1377–1383. DOI: 10.1016/S0082-0784(96)80357-2.
[27]	段远源, 史琳, 朱明善, 等. 三氟碘甲烷(CF₃I)的热物理性质 [J]. 清华大学学报(自然科学版), 2000, 40(6): 60–63. DOI: 10.3321/j.issn:1000-0054.2000.06.018. DUAN Y Y, SHI L, ZHU M S, et al. Thermophysical properties of trifluoroiodomethane (CF₃I) [J]. Journal of Tsinghua University (Science and Technology), 2000, 40(6): 60–63. DOI: 10.3321/j.issn:1000-0054.2000.06.018.
[28]	吕咏梅. 三氟碘甲烷合成与应用进展 [J]. 有机氟工业, 2010(1): 33–35. LV Y M. Progress in the application of trifluoroiodomethane [J]. Organo-Fluorine Industry, 2010(1): 33–35.
[29]	周黎旸. 三氟碘甲烷应用进展 [J]. 化工生产与技术, 2009, 16(4): 5–6. DOI: 10.3969/j.issn.1006-6829.2009.04.002. ZHOU L Y. Application progress of trifluoromethyl iodide [J]. Chemical Production and Technology, 2009, 16(4): 5–6. DOI: 10.3969/j.issn.1006-6829.2009.04.002.
[30]	陶贤文, 李绯, 袁国清, 等. CF₃I气体自动灭火系统在外浮顶油罐中的应用 [J]. 油气田地面工程, 2016, 35(4): 1–3; 7. DOI: 10.3969/j.issn.1006-6896.2016.4.001. TAO X W, LI F, YUAN G Q, et al. Application of CF₃I automatically suppression system on open-top floating roof tanks [J]. Oil-Gas Field Surface Engineering, 2016, 35(4): 1–3; 7. DOI: 10.3969/j.issn.1006-6896.2016.4.001.
[31]	蔡凡一, 薛健, 谭东现, 等. 三氟碘甲烷在有功负载电流下分解特性研究 [J]. 云南电力技术, 2019, 47(4): 8–12; 25. DOI: 10.3969/j.issn.1006-7345.2019.04.002. CAI F Y, XUE J, TAN D X, et al. Decomposition products analysis of trifluoroiodomethane (CF₃I) under load current interruption [J]. Yunnan Electric Power, 2019, 47(4): 8–12; 25. DOI: 10.3969/j.issn.1006-7345.2019.04.002.
[32]	邢其毅, 裴伟伟, 徐瑞秋, 等. 基础有机化学(上册) [M]. 4版. 北京: 北京大学出版社, 2016. XING Q Y, PEI W W, XU R Q, et al. Basic organic chemistry (Ⅰ) [M]. 4th ed. Beijing, China: Peking University Press, 2016.