Explosion overpressure of hydrogen cloud in catalytic reforming process

JIANG Nan; Bi Yixing; LÜ Dong; WANG Lu; MU Yangyang

doi:10.11883/bzycj-2017-0371

Volume 39 Issue 2

Feb. 2019

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JIANG Nan, Bi Yixing, LÜ Dong, WANG Lu, MU Yangyang. Explosion overpressure of hydrogen cloud in catalytic reforming process[J]. Explosion And Shock Waves, 2019, 39(2): 025403. doi: 10.11883/bzycj-2017-0371

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JIANG Nan, Bi Yixing, LÜ Dong, WANG Lu, MU Yangyang. Explosion overpressure of hydrogen cloud in catalytic reforming process[J]. Explosion And Shock Waves, 2019, 39(2): 025403. doi: 10.11883/bzycj-2017-0371

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Explosion overpressure of hydrogen cloud in catalytic reforming process

doi: 10.11883/bzycj-2017-0371

Tianjin Fire Research Institute of MPS, Tianjin 300381, China

Received Date: 2017-10-17
Rev Recd Date: 2018-04-03
Publish Date: 2019-02-05

Abstract

Abstract

Because the structure and shape of processing equipment in petrochemical industry are complex normally, the explosion overpressure of gas is hard to be predicted by traditional explosion overpressure models. Base on the computational fluid dynamics software (FLACS) and the accident model of the catalytic reforming process, the effects of different factors (obstacle shape, leakage position) on the explosion overpressure of hydrogen at different times and different monitoring points were investigated. The explosion overpressure models for overpressure, combustion heat of hydrogen and distance from the center of gas cloud were established. The results show that, the overpressure approximately follows a linear relationship with scaled distance in a logarithmic coordinate system; the explosion overpressure model should be modified for different kinds of obstacles; when the leakage time achieves 5 minutes, the accident occurring in the middle of the reactor shows increasing overpressure obviously.
- catalytic reforming process,
- hydrogen,
- explosion,
- overpressure

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References(17)

References

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