Back to Search Start Over

Experimental investigation on spontaneous combustion oxidation characteristics and stages of coal with different metamorphic degrees

Authors :
Baisheng Nie
Hongwei Yan
Peijun Liu
Zongyu Chen
Chao Peng
Xiaotong Wang
Feifei Yin
Jie Gong
Yueying Wei
Shuangshuang Lin
Qiang Gao
Mingwei Cao
Source :
Environmental science and pollution research internationalReferences.
Publication Year :
2022

Abstract

Coal spontaneous combustion (CSC) is a major disaster threatening coal mine safety; therefore, the investigation of coal spontaneous combustion and oxidation characteristics has been a hot topic in the long term. In this paper, the experimental temperature programmed system is used to carry out the simulation experiment of coal spontaneous combustion and oxidation of three kinds of coal with different metamorphic degrees under three oxygen concentrations (9%, 15%, 21%). The effects of metamorphic degree and oxygen concentration on coal oxidation characteristics were analyzed, and the variation laws of crossing point temperature, three characteristic point temperature, and apparent activation energy were qualitatively discussed. Finally, coal oxidation reaction stages were evaluated and divided. The results show that the concentrations of CO and C

Details

ISSN :
16147499
Database :
OpenAIRE
Journal :
Environmental science and pollution research internationalReferences
Accession number :
edsair.doi.dedup.....ecd367ebfbb9fad7b1a72d19a9cfe21a