Partitioning behavior of trace elements during pilot-scale combustion of pulverized coal and coal-water slurry fuel

Irene G. Nodelman, Sarma V. Pisupati, Sharon Falcone Miller, Alan W. Scaroni

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Release pathways for inorganic hazardous air pollutants (IHAPs) from a pilot-scale, down-fired combustor (DFC) when firing pulverized coal (PC) and coal-water slurry fuel (CWSF) were identified and quantified to demonstrate the effect of fuel form on IHAP partitioning, enrichment and emissions. The baghouse capturing efficiency for each element was calculated to determine the effectiveness of IHAP emission control. Most of the IHAPs were enriched in the fly ash and depleted in the bottom ash. Mercury was found to be enriched in the flue gas, and preferentially emitted in the vapor phase. When firing CWSF, more IHAPs were partitioned in the bottom ash than when firing PC. Significant reduction of Hg emissions during CWSF combustion was also observed. (C) 2000 Elsevier Science B.V.

Original languageEnglish (US)
Pages (from-to)47-59
Number of pages13
JournalJournal of Hazardous Materials
Volume74
Issue number1-2
DOIs
StatePublished - May 29 2000

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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