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Title: PENETRATION OF COAL SLAGS INTO HIGH-CHROMIA REFRACTORIES

Slagging coal gasifiers are used for the production of electricity and synthetic gases, as well as chemicals. High temperatures in the reaction chamber, typically between 1250ºC and 1600ºC, high pressure, generally greater than 400 psi, and corrosive slag place severe demands on the refractory materials. Slag produced during the combustion of coal flows over the refractory surface and penetrates the porous material. Slag penetration is typically followed by spalling of a brick that significantly decreases the service life of gasifier refractories. Laboratory tests were conducted to determine the penetration depth of slags into high-chromia refractories as a function of time and temperature for various refractory-slag combinations.
Authors:
; ;
Publication Date:
OSTI Identifier:
971897
Report Number(s):
PNNL-SA-62371
TRN: US201004%%347
DOE Contract Number:
AC05-76RL01830
Resource Type:
Conference
Resource Relation:
Conference: Mickey Leland Energy Fellowship Technical Forum, 6 pages
Publisher:
Pacific Northwest National Laboratory, Richland, WA, United States(US).
Research Org:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; BRICKS; COAL; COMBUSTION; ELECTRICITY; GASES; PENETRATION DEPTH; POROUS MATERIALS; PRODUCTION; REFRACTORIES; SERVICE LIFE; SLAGS; slagging coal gasifier, molten slag, penetration, high-chromia refractory