Study on influence of raw coal ash content on entrained flow bed coal gasification
The analysis on the influence of raw coal ash content on entrained flow bed coal gasification was of great significance for the design and selection of gasifier and production operation.By establishing the gasification process models of dry pulverized coal gasifier and coal water slurry gasifier,the influence of raw coal ash content variation on effective gas content,gas production and oxygen consumption was studied.The results showed that,under the same load and operating temperature,with the increase of raw coal ash content,the effective gas output of the two gasifiers decreased,and the effective gas content did not change significantly.The oxygen consumption of dry pulverized coal gasifier was lower than that of coal water slurry gasifier,and dry pulverized coal gasifier was more suitable for coal with high ash content.
raw coal ashdry pulverized coal gasifiercoal water slurry gasifiereffective gasoxygen consumptiongas production