THE APPLICATION OF HIGH TEMPERATURE MATERIALS IN COAL CONVERSION
Consideration of modern, high efficiency processes such as fluidized bed combustion and gasification leads to the conclusion that materials hold the key to their successful exploitation. When exposed to the aggressive, low oxygen, coal conversion environment, the materials have to be corrosion resistant in the presence of erosive particles. Furthermore, where they form part of the pressure containing circuit, specific levels of mechanical properties are demanded. Relatively few data are available on the corrosion behaviour, or on the long time high temperature mechanical behaviour of materials exposed in the relevant atmospheres. However, from pilot plant experience it appears that mixed sulphidation - oxidation is the most important degradation process and coatings may be necessary to overcome the conflicting demands for corrosion resistance and mechanical strength at high temperatures. Pointers are given for the direction of future developments.
Bibliographic Reference: CENTENARY OF TEACHING METALLURGY, GLASGOW (UK), JUNE 25-26, 1984 WRITE TO CEC LUXEMBOURG, DG XIII/A2, POB 1907 MENTIONING PAPER E 31539 ORA
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Record Number: 1989122071100 / Last updated on: 1987-01-01
Available languages: en