During the last decade there has been a renewed interest in under
standing from a fundamental point of view the gasification of
carbon. Basi cally there are two major issues in controlling the
reactivity of carbon: i) reduction of the gasification rate of
carbon materials in hostile environment ii) increase of the
gasification rate in order to utilize carbonaceous compounds more
effectively. Although these two objectives look somewhat
contradictory, they are part of the general topics of understanding
gasification reactivity of carbon. Refractory applications of
carbon in furnace linings, seals and vanes, as well as the use of
carbon-carbon or carbon-ceramic composites in struc tures able to
withstand corrosion at high temperature require a better
understanding of the fundamentals involved in carbon-oxidizing gas
(02' CO, H 0) reactions. Furthermore a great interest of aluminium
producers 2 2 is 10 extending the lifetime of carbon electrodes in
alumina electrolysis which primarily depends on reducing their
consumption rates by air or carbon dioxide. Proper control of
gasification reactions is also of prime importance in manufacturing
carbonaceous adsorbents like granular activated carbon clothes of
high adsorption characteristics. The balance between increase of
porosity and decrease in mechanical strength during activation is
critical for developing new porous types of carbon materials in
particular for carbon clothes and this can only be achieved by a
careful control of the gasification reaction."
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