Research on thermal risk and decomposition behavior of methyl nitrite

doi:10.1016/j.cjche.2020.05.031

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (8): 2131-2136.DOI: 10.1016/j.cjche.2020.05.031

• Process Systems Engineering and Process Safety • Previous Articles Next Articles

Research on thermal risk and decomposition behavior of methyl nitrite

Haoyu Zhai, Shaomeng Wang, Diankun Chen, Xuanying Cheng, Chuanxin Xie

College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

Received:2019-11-05 Revised:2020-05-09 Online:2020-09-19 Published:2020-08-28
Contact: Chuanxin Xie

Research on thermal risk and decomposition behavior of methyl nitrite

Haoyu Zhai, Shaomeng Wang, Diankun Chen, Xuanying Cheng, Chuanxin Xie

College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

通讯作者: Chuanxin Xie

Abstract

Abstract: The thermal hazards of methyl nitrite (MN) were investigated in the present study. The determination and evaluation of MN decomposition were conducted using a C600 micro thermometer. The thermal runaway reaction characteristics of the compound under different initial pressures were obtained using a VSP2 calorimeter. The kinetic parameters of MN were obtained by regression fitting and calculation of the microthermal experimental data. The experimental and calculated results demonstrated that the potential explosion risk of MN is very high. In addition, there was a high energy barrier in the early stage of the uncontrolled decomposition of MN; however, once the decomposition reaction was initiated, the subsequent decomposition was easily conducted. Under the conditions of adiabatic simulation, the possibility that the reaction was uncontrolled increases with the initial temperature and pressure of the system, and there is a great potential safety risk.

Key words: Methyl nitrite, Process safety, Thermal risk

摘要： The thermal hazards of methyl nitrite (MN) were investigated in the present study. The determination and evaluation of MN decomposition were conducted using a C600 micro thermometer. The thermal runaway reaction characteristics of the compound under different initial pressures were obtained using a VSP2 calorimeter. The kinetic parameters of MN were obtained by regression fitting and calculation of the microthermal experimental data. The experimental and calculated results demonstrated that the potential explosion risk of MN is very high. In addition, there was a high energy barrier in the early stage of the uncontrolled decomposition of MN; however, once the decomposition reaction was initiated, the subsequent decomposition was easily conducted. Under the conditions of adiabatic simulation, the possibility that the reaction was uncontrolled increases with the initial temperature and pressure of the system, and there is a great potential safety risk.

关键词: Methyl nitrite, Process safety, Thermal risk

Haoyu Zhai, Shaomeng Wang, Diankun Chen, Xuanying Cheng, Chuanxin Xie. Research on thermal risk and decomposition behavior of methyl nitrite[J]. Chinese Journal of Chemical Engineering, 2020, 28(8): 2131-2136.

Haoyu Zhai, Shaomeng Wang, Diankun Chen, Xuanying Cheng, Chuanxin Xie. Research on thermal risk and decomposition behavior of methyl nitrite[J]. 中国化学工程学报, 2020, 28(8): 2131-2136.

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Research on thermal risk and decomposition behavior of methyl nitrite

Research on thermal risk and decomposition behavior of methyl nitrite

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