Effects of Oxygen Concentration on Spontaneous Ignition Behavior of a Single Coal Particle in High Temperature

Abstract

Considering exhaustion of natural resources, the vast quantities of coal are very attractive for human beings and expected to play an important role in the future. On the other hand, the amount of environmental pollutant is more discharged than any other fossil fuels in combustion. Therefore, high temperature air combustion technology of pulverized coal is under development as an innovative combustion technology in order to decrease amounts of environmental pollutant. In this study, effects of oxygen concentration on ignition process of a single coal particle in high temperature were investigated.