Emission of submicron carbon from pulverized coal combustion system

Abstract

Sub-micron unburned carbon (SUC) from pulverised coal combustion is significant in pollution control problems since SUC tends to condense harmful trace elements and passes through an electrostatic precipitator. In the study reported in this paper, emission of SUC from an experimental furnace was investigated. It was concluded from the results obtained that the unburned carbon observed in high proportions in the sub-micron range of fly ash particles was a soot-like carbon formed mainly during the combustion of volatile matter.