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建立了一套能同时实现高温高压和快速加热的实验设备和研究方法,使煤气化反应动力学基础研究能在与实际气流床煤气化炉相近的条件下进行.研究表明,当CO2体积分数相同时,最大CO生成速度随压力的升高而升高;煤焦的气化反应速度随全压的升高而升高.即使全压和CO2体积分数不同,只要CO2的分压、温度等其他条件相同,煤焦的气化反应速度就基本上一致.说明全压和CO2体积分数对煤焦气化反应速度的影响可以归纳为CO2分压的影响.高温快速加热条件下,除了温度以外,CO2分压是影响煤气化特性的重要因素.
A set of experimental equipment and research method that can simultaneously achieve high temperature and high pressure and rapid heating were established so that the basic research of coal gasification reaction kinetics can be carried out under the condition similar to the actual entrained coal gasification furnace.The results show that when CO2 volume fraction phase At the same time, the maximum CO generation rate increases with the increase of pressure, and the gasification reaction rate of coal char increases with the increase of total pressure.If the total pressure and the volume fraction of CO2 are different, as long as the partial pressure of CO2, temperature and other The same conditions, the rate of gasification reaction of coal coke basically the same.Soil pressure and CO2 volume fraction of coal gasification reaction rate can be summarized as the impact of CO2 partial pressure.High temperature rapid heating conditions, in addition to temperature, CO2 partial pressure is an important factor affecting the gasification characteristics.