Abstract:

Based on the characteristics of coal slurry GE gasification technology，a simplified calculation model of the gasification process was established. The model could quantitatively calculate the gasification index，such as specific coal consumption，and specific oxygen consumption. By using the model，the effect of ash content on specific coal consumption and specific oxygen consumption of GE gasification were quantitatively calculated，and the results indicated that when the ash content of raw coal was reduced by one percent，the specific coal consumption would reduce by about 0.33%，and the specific oxygen consumption would reduce by about by 0.72%. This work could provide reference for considering deashing of raw coal for GE gasification.

摘要：

根据GE水煤浆气化的特征，建立了简化的GE气化炉煤气化计算模型，该模型通过物料衡算与热量衡算的耦合，能定量地计算出GE水煤浆气化时的比煤耗、比氧耗等气化指标。应用该模型，定量地计算了灰含量对GE水煤浆气化时的比煤耗与比氧耗的影响，计算结果表明，原煤灰含量每降低1个百分点，GE水煤浆气化时的干燥无灰基比煤耗约降低0.33%，比氧耗约降低0.72%。计算结果对讨论GE气化用煤脱灰的必要性具有参考意义。