Review of refractory materials for the Memphis Industrial Fuel Gas Demonstration Plant
The proposed Memphis Light, Gas, and Water (MLGW) Industrial Fuel Gas Demonstration Plant to be constructed near Memphis, TN is designed to convert high-sulfur Eastern coal into medium-Btu fuel gas using the Ash Agglomerating (U-Gas) process developed by the Institute of Gas Technology. The plant design depends heavily upon the use of refractory linings in the high-temperature components to provide thermal insulation for the metallic structural backing and to provide resistance to corrosive attack and erosive wear. The current plant design calls for the outer, or service, layer of this refractory lining to be Harbison-Walker Castolast G, a calcium aluminate-bonded high-alumina (approx. 95%) castable refractory. The present report reviews this choice of refractory with respect to its mechanical properties and resistance to chemical attack and erosive wear in the anticipated gasifier environment. The experience with the Castolast G refractory lining in the gasifier of the U-Gas Pilot Plant is also considered. On the basis of this review, it is concluded that while a high-alumina castable refractory lining such as Castolast G should perform acceptably in the MLGW Plant, the use of a calcium aluminate-bonded medium-alumina castable is preferred for this application. This preference is based upon the superior compressive strength of the medium-alumina refractories after exposure to simulated gasifier environments, their anticipated better wear resistance, and their lower initial cost.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 5962672
- Report Number(s):
- ANL/FE-81-60; ON: DE82002514
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
REFRACTORIES
COMPARATIVE EVALUATIONS
CORROSION RESISTANCE
RECOMMENDATIONS
U-GAS PROCESS
DEMONSTRATION PLANTS
ALUMINATES
ALUMINIUM OXIDES
CALCIUM COMPOUNDS
COAL GASIFICATION
CORROSION
EROSION
PILOT PLANTS
THERMAL INSULATION
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
FUNCTIONAL MODELS
GASIFICATION
OXIDES
OXYGEN COMPOUNDS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
360205 - Ceramics
Cermets
& Refractories- Corrosion & Erosion