To achieve clean burning coal and rational utilization
the integrated gasification combined-cycle and polygeneration is a very prospects way of coal combustion in future. The gasifier in both systems is essential. Through forecast and analysis coal gas composition in gasifier output can be reasonably adjusted coal-oxygen ration and coal-water ration
thereby improving the efficiency of the entire polygeneration system. In combined cycle
rational adjustment coal-oxygen ration and coal-water ration can reduce gasifier internal heat losses and improve the combined-cycle efficiency.