Low-temperature oxidation characteristics of bituminous coal with different gas contents: a case study. Issue 13 (3rd July 2021)

• Record Type: Journal Article
• Authors: Zhou, Liang; Dai, Guanglong; Qin, Ruxiang; Tang, Mingyun
• Is Part Of: Energy sources. Volume 43:Issue 13(2021)
• Page Start: 1635
• Page End: 1648
• Publication Date: 2021-07-03
• Subjects: CPT -- low-temperature oxidation -- gas-containing coal -- spontaneous combustion -- bituminous coal; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2019.1647310
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: The present study tests the low-temperature oxidation characteristics of coal with different gas contents through the temperature-programmed experiment system. On the basis of the experimental data, the crossing-point temperature (CPT), law of coal heating, and coal consumption in the experimental process are obtained. Then, the energy conservation formula and coal oxygen kinetics formula of the low-temperature coal oxidation process are established, and the apparent activation energy and the reaction enthalpy of O2 for coal with different gas contents are calculated. Results show that when the gas content of coal increases, the CPT increases, the apparent activation energy increases, and the reaction enthalpy of O2 decreases.