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Wear Mechanisms of Chromia Refractories in Slagging Gasifiers
Author(s) -
Kwong Kyeising,
Petty Art,
Bennett James,
Krabbe Rick,
Thomas Hugh
Publication year - 2007
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/j.1744-7402.2007.02175.x
Subject(s) - chromia , refractory (planetary science) , spall , materials science , wood gas generator , metallurgy , raw material , carbon fibers , slag (welding) , refractory metals , waste management , alloy , composite material , coal , engineering , chemistry , organic chemistry , composite number
The hot‐face refractory lining is a key component of gasification systems. The refractory liner protects the gasification system from the high‐temperature corrosive gaseous and from the molten slag environment associated with the conversion of carbon feedstocks. This paper will discuss the effect of gasifier operating conditions and carbon feedstock slag/ash chemistry on the refractory service life. Particular attention is focused on the wear mechanism of chromia refractories, determined through postmortem analysis of spent refractory bricks from service in gasifiers. Also presented is the behavior of a phosphate‐containing chromia refractory with improved resistance to structural spalling.