O2/CO2气氛下乙烷可燃极限的实验研究和计算

doi:10.12068/j.issn.1005-3026.2021.03.008

东北大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (3): 353-358.DOI: 10.12068/j.issn.1005-3026.2021.03.008

O₂/CO₂气氛下乙烷可燃极限的实验研究和计算

胡贤忠，冯敬武，姜林宏

(东北大学冶金学院，辽宁沈阳110819)

收稿日期:2020-07-16 修回日期:2020-07-16 接受日期:2020-07-16 发布日期:2021-03-12
通讯作者: 胡贤忠
作者简介:胡贤忠(1984-)，男，山东枣庄人，东北大学讲师，博士.
基金资助:
国家自然科学基金资助项目(51706037)；东北大学大学生创新训练计划项目(191126).

Experimental Study and Calculation of Ethane Flammability Limit Under O₂/CO₂Atmosphere

HU Xian-zhong， FENG Jing-wu， JIANG Lin-hong

School of Metallurgy， Northeastern University， Shenyang 110819， China.

Received:2020-07-16 Revised:2020-07-16 Accepted:2020-07-16 Published:2021-03-12
Contact: HU Xian-zhong
About author:-
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摘要/Abstract

摘要： 可燃极限是表征燃烧特性的重要参数之一.本文以5L圆柱形反应器为基础，搭建了可燃极限实验系统，对O₂/CO₂气氛下乙烷的可燃极限进行研究，并与空气气氛下乙烷的可燃极限进行了对比.结果表明，高浓度的CO₂降低了可燃气的可燃上限，提高了可燃气的可燃下限，分析了高浓度CO₂对可燃极限的影响机理.根据热理论，推导出C₂H₆/O₂/CO₂可燃极限的计算方法，将实验值与计算值进行比较，平均绝对偏差在2.2%以内，两者吻合较好.

关键词: O₂/CO₂气氛;燃烧特性;可燃极限;乙烷;热理论

Abstract: The flammability limit is an important parameter of combustion characteristics. In this paper， a flammability limit experimental device was set up based on the 5L cylindrical reactor. The flammability limits of ethane under CO₂/O₂ atmosphere were studied and compared with those in air atmosphere. The results showed that high concentration of CO₂ reduces the upper flammability limit and increases the lower flammability limit of gas mixture. The influence of high concentration of CO₂ on flammability limit was analyzed. The formula of calculation of flammability limit for C₂H₆/O₂/CO₂ was deduced according to the thermal theory. The average absolute deviation between the experimental values and calculated values is within 2.2%. The values of calculation are in agreement with the experimental data.

Key words: O₂/CO₂ atmosphere; combustion characteristic; flammability limit; ethane; thermal theory

中图分类号:

TQ038.4

胡贤忠，冯敬武，姜林宏. O₂/CO₂气氛下乙烷可燃极限的实验研究和计算[J]. 东北大学学报（自然科学版）, 2021, 42(3): 353-358.

HU Xian-zhong， FENG Jing-wu， JIANG Lin-hong. Experimental Study and Calculation of Ethane Flammability Limit Under O₂/CO₂Atmosphere[J]. Journal of Northeastern University(Natural Science), 2021, 42(3): 353-358.

参考文献

[1]Buhre B J P，Elliott L K，Sheng C D，et al.Oxy-fuel combustion technology for coal-fired power generation［J］.Progress in Energy and Combustion Science，2005，31(4):283-307.
[2]Turns S R.An introduction to combustion:concepts and applications ［M］.3rd ed.New York:McGraw-Hill Higher Education，2011.
[3]尚融雪，万嵩，杨红霞，等.CO₂和N₂惰化条件下合成气可燃下限实验研究［J］.东北大学学报(自然科学版)，2019，40(8):1191-1196.(Shang Rong-xue，Wan Song，Yang Hong-xia，et al.Experimental study on the lower limit of combustion of syngas under CO₂ and N₂ inerting ［J］.Journal of Northeastern University (Natural Science)，2019，40(8):1191-1196.)
[4]胡耀元，钟依均，应桃开，等.H₂，CO，CH₄多元爆炸性混合气体支链爆炸阻尼效应［J］.化学学报，2004，62(10):956-962.(Hu Yao-yuan，Zhong Yi-jun，Ying Tao-kai，et al.Explosion damping effect of branched chain of H₂，CO，CH₄ multi-component explosive mixed gases ［J］.Journal of Chemistry，2004，62(10):956-962.)
[5]Kondo S，Takizawa K，Takahashi A，et al.Extended Le Chatelier's formula for carbon dioxide dilution effect on flammability limits［J］.Journal of Hazardous Materials， 2006，138:1-8.
[6]罗振敏，杨勇，程方明，等.N₂和CO₂惰化丙烯爆炸极限参数实验研究［J］.化工学报，2020，71(4):1922-1928.(Luo Zhen-min，Yang Yong，Cheng Fang-ming， et al.Experimental study on explosion limit parameters of N₂ and CO₂ inerted propylene ［J］.Journal of Chemical Industry，2020，71(4):1922-1928.)
[7]Tian H，Shu G Q，Wei H Q，et al.Evaluating upper flammability limit of low hydrocarbon diluted with an inert gas using threshold temperature［J］.Chemical Engineering Science，2015，138:810-813.
[8]任常兴，张欣，慕洋洋，等.可燃气体和混合气极限氧浓度实验研究［J］.消防科学与技术，2017，36(2):156-159.(Ren Chang-xing，Zhang Xin，Mu Yang-yang， et al.Experimental study on limit oxygen concentration of combustible gas and mixture ［J］.Fire Science and Technology，2017，36(2):156-159.)
[9]Andrés Z，Mendiburu C R，Coronado J A，et al.Difficulties on the determination of the flammability limits of fuel mixtures by the law of Le Chatelier ［J］.Process Safety and Environmental Protection，2020，142:45-55.
[10]Di Benedetto A，Cammarota F，Sarli V D，et al.Reconsidering the flammability diagram for CH₄/O₂/N₂ and CH₄/O₂/CO₂ mixtures in light of combustion-induced rapid phase transition［J］.Chemical Engineering Science，2012，84:142-147.

O₂/CO₂气氛下乙烷可燃极限的实验研究和计算

Experimental Study and Calculation of Ethane Flammability Limit Under O₂/CO₂Atmosphere

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