Submicrometer particle formation and control in a bench-scale pulverized coal combustor

Y. Zhuang, P. Biswas

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

Experimental studies were performed to investigate the formation mechanisms of submicrometer particles during combustion of a pulverized Ohio bituminous coal. Elemental compositions of total and submicrometer ash and particle size distributions were measured at different operating conditions. The submicrometer ash particles were formed by means of a vaporization-nucleation-condensation mechanism. A decreasing collection efficiency in a cylindrical electrostatic precipitator was observed for ash particles smaller than 100 nm due to insufficient charging. A vapor-phase sorbent injection methodology was used in the coal combustion system, and was shown to suppress the nucleation mode of the ash particles.

Original languageEnglish (US)
Pages (from-to)510-516
Number of pages7
JournalEnergy and Fuels
Volume15
Issue number3
DOIs
StatePublished - May 2001
Externally publishedYes

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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