A review on chemical oxygen supply technology within confined spaces: Challenges, strategies, and opportunities toward chemical oxygen generators(COGs)

作     者：Jian-guo Liu Long-zhe Jin Na Gao Sheng-nan Ou Shu Wang Wei-xiang Wang 

作者机构：School of Civil and Resource EngineeringUniversity of Science and Technology BeijingBeijing 100083China Key Laboratory of High-Efficient Mining and Safety of Metal Mines of the Ministry of EducationUniversity of Science and Technology BeijingBeijing 100083China Mine Emergency Technology Research CenterUniversity of Science and Technology BeijingBeijing 100083China 

出 版 物：《International Journal of Minerals,Metallurgy and Materials》 (矿物冶金与材料学报（英文版）)

年 卷 期：2019年第26卷第8期

页      面：925-937页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 

基　　金：financially supported by the National Key Research and Development Program of China (No.2017YFC0805204) the National Natural Science Foundation of China (Nos.51504017 and 51874015) 

主　　题：chemical oxygen generators oxygen supply technology thermal decomposition catalytic metal fuel combustion 

摘      要：Chemical oxygen generators(COGs)have been used worldwide in confined spaces as an emergency oxygen supply technology,mainly because they are independent and have a long shelf ***,a number of challenges related to COGs remain unsolved,and a literature review of the current state of the technology is ***,the present article summarizes the basic information and applications of COGs,including their oxygen production mechanism,components,forming technology,and ignition *** current challenges encountered in applying COGs are discussed,along with the strategies adopted thus far to solve these problems,as found in the published *** literature survey reveals that,although much effort has been devoted to controlling the oxygen production rate and the heat output of COGs,the mechanism of producing toxic gases remains unclear and a reliable and safe ignition system has not been fully ***,future opportunities in the development of COGs are briefly listed.