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.
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- Conference: Mickey Leland Energy Fellowship Technical Forum, 6 pages
- Pacific Northwest National Laboratory, Richland, WA, United States(US).
- Research Org:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
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- Country of Publication:
- United States
- 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