Showing papers in "Industrial & Engineering Chemistry Process Design and Development in 1965"

Kinetic Study of Coal Char Hydrogasification. Rapid Initial Reaction

Abstract: The coal char hydrogasification reaction may be regarded as two simultaneous reactions differing considerably in their rates. The rate of coal hydrogasification, particularly that for the initial rapid reaction, was studied. The initial reaction rates in semiflow tests were analyzed and found to be proportional to the amount of unreacted carbon remaining in the particles as well as the effective partial pressure of hydrogen. The rate constant for small conversion of carbon was found to be 2.0 (atm.-hr.)/sup -1/. The reaction model used for semiflow test analysis was satisfactorily applied to continuous free-fall reactor tests.