Modeling For Gasifier And Feedstocks Optimizing

Coal gasifiers are essential units of IGCC and polygeneration system. A kinetics mathematical steady state model has been developed to simulate the modeling for a coal-water slurries gasifier using"cell modeling method".From the process of gasification the entrained flow coal gasifier is conceptually divided into three zones: the pyrolysis and volatile combustion zone, the char combustion zone, and the gasification zone. Temperature and concentration profiles along the reactor are obtained by solving the material and energy balance equations. More than thirteen chemical reactions such as water-gas shift reaction, char-oxygen, char-steam, et al are considered in detail. The simulation results are consistent with many kinds of experimental data. In the end, more effective synthesis gas has been got by optimizing the different operation parameters on the performance of the gasifier, and the principles of these effects are analyzed and discussed.