Experimental study on the influence of high temperature and high pressure on the upper limit of explosion of ethane in oxygen

YU Jianliang; YAO Futong; YU Xiaozhe; YAN Xingqing; LUO Can; ZHANG Lianzhuo

doi:10.11883/bzycj-2018-0381

Volume 39 Issue 12

Dec. 2019

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YU Jianliang, YAO Futong, YU Xiaozhe, YAN Xingqing, LUO Can, ZHANG Lianzhuo. Experimental study on the influence of high temperature and high pressure on the upper limit of explosion of ethane in oxygen[J]. Explosion And Shock Waves, 2019, 39(12): 122101. doi: 10.11883/bzycj-2018-0381

Citation:

YU Jianliang, YAO Futong, YU Xiaozhe, YAN Xingqing, LUO Can, ZHANG Lianzhuo. Experimental study on the influence of high temperature and high pressure on the upper limit of explosion of ethane in oxygen[J]. Explosion And Shock Waves, 2019, 39(12): 122101. doi: 10.11883/bzycj-2018-0381

Citation:

YU Jianliang, YAO Futong, YU Xiaozhe, YAN Xingqing, LUO Can, ZHANG Lianzhuo. Experimental study on the influence of high temperature and high pressure on the upper limit of explosion of ethane in oxygen[J]. Explosion And Shock Waves, 2019, 39(12): 122101. doi: 10.11883/bzycj-2018-0381

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Experimental study on the influence of high temperature and high pressure on the upper limit of explosion of ethane in oxygen

doi: 10.11883/bzycj-2018-0381

School of Chemical Machinery and Safety Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received Date: 2018-10-08
Rev Recd Date: 2019-01-30

Available Online: 2019-11-25

Publish Date: 2019-12-01

Abstract

Abstract

The explosion limits of combustible material at elevated temperatures and pressures provide support for perfecting fire and explosion safety theory and improving explosion protection technology. A closed 20 L spherical vessel was designed to measure the explosion limits under abnormal conditions. The explosion limits of ethane/oxygen mixtures at temperatures ranging from 20 to 270 °C and pressures ranging from 0.5 to 2.6 MPa were measured. The influence of temperature, pressure and their coupling effect on the explosion limits in oxygen were analyzed. The results showed that the range of the explosion limits of ethane in oxygen gradually widened as the initial pressures and temperatures increased; the UELs in oxygen changed almost linearly when the initial temperatures were below 140 °C; as the temperature continues to rise, its effect gradually decreased; the UELs in oxygen changed almost linearly when the initial temperatures were below 140 °C; the UELs in oxygen linearly increased when the initial pressures were below 1.6 MPa; the rising rate of UEL increased above 1.6 MPa and 140 °C; the elevated temperatures and pressures decreased the LELs of ethane in oxygen, but their effect was reduced; the coupling effect of the initial temperatures and pressures on the explosion limits of ethane/oxygen mixtures was found slightly less than the sum of the two factors, but far greater than the effect of each individual factor; and the quantitative rules of explosion limits varying with the initial pressures and temperatures were obtained using the fitting formula.
- explosion limit,
- elevated temperatures and pressures,
- ethane,
- oxygen

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References(17)

References

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