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中文摘要：
基于化学反应平衡假设，建立水煤浆气流床气化炉的平衡模型．以H／C和O／C摩尔比、灰分的质量分数为输入变量，考察了煤中c、H、0元素的相对摩尔量和灰分质量分数对气化炉性能的影响，为工业气化炉选煤、配煤和变煤种等操作提供指导．研究结果表明：在相同气化温度下，随着O／C摩尔比的升高；有效合成气产率降低，比氧耗增加，随着H／C摩尔比的升高；有效合成气收率略微增加，而比氧耗变化不大；煤中0元素的相对摩尔量对气化炉的性能有着较为显著的影响；然而随着灰分质量分数的增加，有效合成气收率降低，比氧耗增大．因此，在工业生产过程中，应该密切关注原料煤的组成变化，及时调整气化参数，优化气化炉的运行，提高气化经济效益．
英文摘要：
An equilibrium model of entrained-flow coal-water slurry gasifier was developed based on the assumption of chemical equilibrium. In order to provide guidance for industrial gasifier operations such as preparing coal, blending coal and changing coal types, the effects of the amount of element C, H, O and ash in dry coal on the performance of gasifier were investigated by means of changing H/C and O/C molar ratios and ash content. Calculated gas compositions and gasification temperatures showed a fairly good agreement. The simulation shows that at the same operating temperature, the syngas productivity and the oxygen consumption increase with the O/C molar ratio. However, with the increase of H/C molar ratio, the syngas productivity increases slightly and the oxygen consumption remains unchanged. The relative amount of element O in coal has a significant effect on the performance of gasifier. The syngas productivity reduces and the oxygen consumption raises with the increase of ash content. The above simulation results indicate that the effects of major constituents of coal, i.e. C, H, O and ash on the performance of gasifier should be concerned, and the operating parameters need be adjusted in the industrial operating to optimize the production process and enhance the economic benefits.
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