Showing papers on "Carbochemistry published in 1975"

Relationship between the gasification reactivities of coal char and the physical and chemical properties of coal and coal char. [12 refs]

Abstract: Possible relationships between coal-char gasification reactivities, and physical and chemical coal and coal-char properties were explored. Gasification tests were conducted with hydrogen and steam-hydrogen mixtures in a thermobalance apparatus under constant environmental conditions at elevated pressures and temperatures to obtain the information necessary to define relative reactivity factors of the different coal chars evaluated. Potentially useful correlations relating gasification reactivity factors of coal chars to relatively simple compositional parameters of raw coals of a wide range of rank and maceral composition are discussed. Results are also presented to characterize variations in internal surface areas and pore volume distributions of several selected coal chars during the course of gasification.