Slag Characterization: Viscosity of Synthetic Coal Slag in Steam

Technical Report · Sun Jun 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6627673· OSTI ID:6627673

Brower, W. S. ^[1]; Waring, J. L. ^[1]; Blackburn, D. H. ^[1]

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1. National Bureau of Standards, Washington, DC (United States)

A rotating cylinder apparatus has been designed and constructed for measuring the viscosity of molten slags under steam pressure in the range 15 to ~300 psi and up to about 1400 °C. Two synthetic coal slags, one high in alkali and the other lower in alkali but higher in calcia were studied with this apparatus. In the high alkali slag equilibrium was probably not achieved and the viscosity appeared to increase with time. In the low alkali slag although the viscosity appeared to be increased with increasing steam pressure the ambient and higher pressure curves appear to tend to coalesce with increasing temperature.

• Research Organization: National Bureau of Standards, Washington, DC (United States)
• Sponsoring Organization: US Department of Commerce; USDOE
• DOE Contract Number: AI01-76PR06010; EA-77-A-01-6010
• OSTI ID: 6627673
• Report Number(s): NBSIR-80-2124
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
47 OTHER INSTRUMENTATION
SLAGS
VISCOSITY
VISCOSIMETERS
DESIGN
COAL GASIFICATION
DIAGRAMS
MEASURING METHODS
PH VALUE
PRESSURE DEPENDENCE
STEAM
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
GASIFICATION
MEASURING INSTRUMENTS
THERMOCHEMICAL PROCESSES
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