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本实验以正庚烷为代表组分,采用流动循环无梯度反应器,研究了镍-铝酸盐轻油转化催化剂的动力学性能。在常压、温度为370℃～500℃范围内、排除内外扩散影响的情况下得到下列反应速度方程: r=8.5×10~2exP((-11600)/(RT))P_(C7H16)~(0.7)P_(H2O)~(-0.6)摩/克·时所得结果利用Langmuir吸附等温式加以讨论,得出双分子表面反应为控制步骤,存在水和庚烷的竞争吸附,从而提出转化过程水碳比不宜过高的观点,从排除内扩散的实验结果提出降镍和改变催化剂孔结构的初步看法。
In this experiment, n-heptane was used as a representative component. The kinetic performance of the nickel-aluminate light oil conversion catalyst was studied using a flow-cycled non-gradient reactor. The following reaction rate equation was obtained under the conditions of atmospheric pressure and temperature of 370 ℃ ~ 500 ℃, excluding the influence of internal and external diffusion: r = 8.5 × 10 ~ 2exP ((--1116) / (RT)) P_ (C7H16) 0.7) P (H2O) ~ (-0.6) mol / g · The results obtained are discussed by Langmuir adsorption isotherm, and it is concluded that the bimolecular surface reaction is the control step. The competitive adsorption of water and heptane exists, Carbon ratio should not be too high point of view, from the experimental results to exclude the proliferation of nickel proposed to change and change the pore structure of the initial view.