The effects of coal particle size on spontaneous combustion characteristics. Issue 3 (4th March 2022)

• Record Type: Journal Article
• Authors: Rifella, Archi; Setyawan, Daru; Chun, Dong Hyuk; Yoo, Jiho; Kim, Sang Do; Rhim, Young Joon; Choi, Ho Kyung; Lim, Jeonghwan; Lee, Sihyun; Rhee, Youngwoo
• Is Part Of: International journal of coal preparation and utilization. Volume 42:Issue 3(2022)
• Page Start: 499
• Page End: 523
• Publication Date: 2022-03-04
• Subjects: Critical self-ignition temperature -- crossing-point temperature -- low rank coal -- low-temperature oxidation -- spontaneous combustion; Coal preparation -- Periodicals; Coal -- Research -- Periodicals; 662.62
• DOI: 10.1080/19392699.2019.1622529
• Languages: English
• ISSNs: 1939-2699

Abstract

ABSTRACT: Some coals are susceptible to spontaneous combustion. In this paper, crossing-point temperature (CPT) and critical self-ignition temperature (CSIT) analyses as critical self-heating methods and low-temperature oxidation (LTO) analysis as an isothermal oxidation method were used to determine the spontaneous combustion characteristics of Indonesian low-rank coal with different particle sizes. In the CPT and CSIT analyses, larger particles were found to have a low risk of spontaneous combustion along with an increasing particle size in coal. Meanwhile, in LTO analysis, the dependency on particle size was only found in smaller particles rather than larger ones.