Methane degradation and explosion inhibition by using ultrafine water mist containing methane oxidative bacteria-inorganic salt

被引：0

作者：

Ji H. ^{[1
,2
]}

Yang K. ^{[3
]}

Huang W. ^{[1
,2
]}

Wang Y. ^{[3
]}

Zuo J. ^{[3
]}

机构：

[1] School of Petroleum Engineering, Changzhou University, Changzhou, 213164, Jiangsu

[2] Key Laboratory of Oil & Gas Storage and Transportation Technology, Changzhou, 213164, Jiangsu

[3] School of Environment and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu

来源：

Yang, Ke (yangke728@163.com) | 1600年 / Materials China卷 / 68期

基金：

中国国家自然科学基金;

关键词：

Explosion suppression; Methane; Methane-oxidizing bacteria; Safety; Ultrafine water mist;

D O I：

10.11949/j.issn.0438-1157.20170568

中图分类号：

学科分类号：

摘要：

A semi-confined chamber was designed and an explosion suppression experiment on the effect of different spraying volume of methane-oxidizing bacteria and ultra-fine water mist on methane-air premixed mixture was studied. The methane-oxidative bacteria morphology, flame change visualization in the explosion suppression process, maximum explosion overpressure and the average pressure rise rate are analyzed. The results show that the ultra fine water mist containing methane-oxidizing bacteria-inorganic salt can effectively degrade methane, the larger the spray amount is, the faster the methane degradation speed is. With the methane volume being 9.5% and the flame propagation rate being 0.7 ml, when the methane had degraded after 360 min, the flame brightness and the flame propagation rate were lower than the situation caused by methane that had not degraded. When the spraying volume was added from 0.7 ml to 4.9 ml, the maximum explosion overpressure in the chamber decreased and the average pressure over the close part of the chamber decreased. The results indicate the synergistic effect of methane oxidizing bacteria-inorganic salt and ultrafine water mist on methane explosion. It can effectively degrade the methane in certain period of time. © All Right Reserved.

引用

页码：4461 / 4468

页数：7

共 22 条

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