The wettability of coal and petcoke slags on 90 wt.% Cr2O 3 wt.% Al2O3 gasifier refractory liners used in gasification

Jinichiro Nakano, Sridhar Seetharaman, James Bennett, Kyei Sing Kwong, Tyler Moss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

By utilizing a Confocal Scanning Laser Microsope, the wettability as well as penetration behaviors of coal and petcoke slags on high chromia and alumina refractories have been investigated. The petcoke slag showed the lower initial deformation temperature and also lower melting temperature than the coal slag. The high chromia refractory, in general, returned better corrosionlerosion resistance against both slags with the exception that the alumina substrate outperformed in minimizing the slag penetration when the petcoke slag was interacted with a fined region of the refractory. The VONx-based phase was observed as a layer of (V, Cr, Fe)Ox at the interface between the petcoke slag and the high chromia substrate; and as discrete particles of (V, Al, Si)Ox at the interface between the petcoke slag and the alumina refractory. In some cases, Ca- and Fe-rich VOx, was also observed. For the coal slag, Ca-species penetrated most slowly through the fined regions of both refractories, whereas Fe-species was the fastest in any case.

Original languageEnglish (US)
Title of host publication25th Annual International Pittsburgh Coal Conference, PCC - Proceedings
StatePublished - 2008
Externally publishedYes
Event25th Annual International Pittsburgh Coal Conference, PCC - Pittsburgh, PA, United States
Duration: Sep 29 2008Oct 2 2008

Publication series

Name25th Annual International Pittsburgh Coal Conference, PCC - Proceedings

Conference

Conference25th Annual International Pittsburgh Coal Conference, PCC
Country/TerritoryUnited States
CityPittsburgh, PA
Period9/29/0810/2/08

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Environmental Engineering

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