论文部分内容阅读
在两种改性Y分子筛为担体的Mo Ni催化剂上 ,利用连续流动微型反应装置 ,在 32 0～ 380℃、8 5MPa的反应条件下 ,对四氢萘加氢裂化反应进行了研究。根据产品分布提出了四氢萘加氢裂化反应网络。用非线性参数估计法对四氢萘加氢裂化反应网络的拟一级动力学常数进行了计算。结果表明 :四氢萘加氢裂化反应是复杂的平行 串联反应 (包括加氢、异构、裂化 )。四氢萘加氢裂化反应的关键步骤和双环化合物裂解的转化率以及单环化合物的产率与两种催化剂担体的酸性及反应温度有关。四氢萘加氢裂化反应动力学符合Langmuir Hinshellwood双位机理。
The hydrocracking reaction of tetrahydronaphthalene was carried out on Mo Ni catalyst supported on two kinds of modified Y molecular sieves by continuous flow microreactor under the reaction conditions of 32 0 ~ 380 ℃ and 85 MPa. According to the product distribution, a tetralin hydrocracking reaction network was proposed. The pseudo-first-order kinetic constants of tetralin hydrocracking reaction network were calculated by nonlinear parameter estimation. The results show that tetralin hydrocracking reaction is a complicated parallel series reaction (including hydrogenation, isomerization, cracking). The key steps of the tetrahydronaphthalene hydrocracking reaction and the conversion of the bicyclic compound to pyrolysis and the yield of the monocyclic compound are related to the acidity and reaction temperature of the two catalyst carriers. The kinetics of tetralin hydrocracking met the Langmuir Hinshellwood two-position mechanism.