@inproceedings{9d45146766644811b721bf2d50993634,
title = "Refractory degradation by slag attack in coal gasification",
abstract = "This research investigates sessile drop interfacial reactions between two refractory materials (high-chromia and alumina) and two synthetic slags (coal and petcoke). Pulverized slag samples were placed at specific microstructure locations on refractory substrates and heated to 1500 °C at log(Po 2) = -9, using a high-speed heating chamber. Cross-sections of the slag/refractory interface indicated unique slag penetration into preferred areas of the refractory and grain dissolution into the slag through a de-bonding mechanism. Initially, the slag attacked both grain boundaries and fine microstructure areas, freeing alumina grains into the slag. Crystalline VO x formation in the petcoke slag was found to alter the overall liquid composition. Chemical spallation of Cr-containing crystal layer facilitated degradation of the refractory.",
keywords = "Alumina, Chromia, Coal, Integrated gasification combined cycle, Petcoke, Vanadium oxide",
author = "Jinichiro Nakano and Sridhar Seetharaman and James Bennett and Kwong, \{Kyei Sing\} and Tyler Moss",
year = "2009",
language = "English (US)",
isbn = "9780873397391",
series = "TMS Annual Meeting",
pages = "197--204",
booktitle = "TMS 2009 - 138th Annual Meeting and Exhibition - Supplemental Proceedings",
note = "TMS 2009 - 138th Annual Meeting and Exhibition ; Conference date: 15-02-2009 Through 19-02-2009",
}