Investigation of calcium aluminate cement phases under high gaseous pressure

The chemical degradation of refractory cement castable liners is important in the coal gasification process. The system CaO-Al₂O₃-H₂O has been investigated at high temperature and pressure. A pseudobinary reaction diagram was constructed for the system CaO-Al₂O₃-H₂O in steam at 1000 psig. Several experiments were conducted in the CaO-Al₂O₃-H₂O system in CO₂, CH₄, and CO.