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利用一个内径４８ｍｍ，具有锥形分布板的流化床对神木煤（４５～８０目）的热解行为进行了研究。流化床稀浓两段温度可以分别控制。浓相段温度４００～９００℃，稀相段温度控制在５８０℃，得到了浓相段温度与热解产物产率的关系。结果表明，提高浓相段温度有利于Ｈ２，ＣＯ，ＣＨ４及Ｃ２Ｈ４产率的提高，浓相段温度在６００～６５０℃左右液相产品产率达到最大值。通过与以往的研究者所得结果的比较，表明在稀相段温度较高的情况下，即使挥发分停留时间很短，也会有相当程度的二次反应发生。而本文的结果是在最大限度地减小了稀相段气相二次反应的情况下得到的，更准确地反映了流化床浓相温度对热解的影响。
The pyrolysis behavior of Shenmu coal (45 ~ 80 mesh) was studied by using a fluidized bed with inner diameter 48mm and conical distribution plate. Fluidized bed dilute concentration of two temperature can be controlled separately. The temperature of the dense phase was 400 ~ 900 ℃ and the temperature of the dilute phase was controlled at 580 ℃. The relationship between the temperature of the dense phase and the yield of pyrolysis products was obtained. The results show that increasing the temperature of the dense phase is beneficial to the increase of the yield of H2, CO, CH4 and C2H4. The maximum yield of the liquid product at the concentration of 600 ~ 650 ℃ is obtained. Compared with the results obtained by previous researchers, it is shown that there is a considerable degree of secondary reaction even if the residence time of volatiles is very short at the high temperature of dilute phase. The results of this paper are obtained in the case of minimizing the gas-phase second reaction in the dilute phase and more accurately reflect the influence of the dense-phase temperature of the fluidized bed on the pyrolysis.