Nickel speciation and aerosol formation during combustion of kerosene doped with nickel nitrate aerosol in a premixed burner

Z. M. Wang, P. Biswas

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A controlled laboratory scale burner was used to combust kerosene oil doped with varying concentrations of sulfur (organic form) and nickel (as an atomized 0.23 μm nickel nitrate aerosol). The resultant size distribution and speciation of the nickel aerosol was determined as a function of the distance from the burner outlet. In the high temperature region, nickel oxide was the dominant species formed, followed by a conversion to amorphous nickel sulfate at lower temperatures. The presence of sulfur in the fuel resulted in a greater degree of volatilization and formation of a higher concentration of smaller sized nickel species aerosol. Thermogravimetric analyzer tests were also used to establish the first order reaction rate constant for NiO formation. A mechanistic description for the formation of the submicrometer mode is proposed which includes volatilization/nucleation, direct conversion to NiO, and possible breakage.

Original languageEnglish (US)
Pages (from-to)525-535
Number of pages11
JournalAerosol Science and Technology
Volume33
Issue number6
DOIs
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Materials Science(all)
  • Pollution

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