Reactivity of young chars via energetic distribution measurements. Final report, 1 September 1990--31 December 1994

摘要

We have developed what we believe to be the first, a priori, correlation/prediction technique for the gasification reactivity of coal char. With this method, the gasification reactivity of a coal char as a function of temperature can be correlated using the data from a temperature programmed desorption (TPD) experiment following gasification under conditions where the reactivity is controlled by the thermal desorption of oxygen surface complexes formed during gasification. The current project was directed at extending and developing related techniques for the characterization and prediction/correlation of the reactivity of the 'young' chars to CO2 and steam. Of particular interest was mapping of the reactivity behavior of the resultant chars, as revealed by the energetic heterogeneity of the complexes with char preparation conditions.