Gasification of high ash India coal has been studied in a laboratory-s
cale, atmospheric fluidized bed gasifier using steam and air as fluidi
zing media. A one-dimensional analysis of the gasification process has
been presented incorporating a two-phase theory of fluidization, char
gasification, volatile release and an overall system energy balance.
Results are presented on the variation of product gas composiiton, bed
temperature, calorific value and carbon conversion with oxygen and st
eam feed. Comparison between predicted and experimental data has been
presented, and the predictions show similar trends as in the experimen
ts.