| 2种重油悬浮床加氢反应器流体力学特性的比较 |
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| 引用本文： | 薄守石 王剑 白飞 孙兰义. 2种重油悬浮床加氢反应器流体力学特性的比较[J]. 石油学报(石油加工), 2015, 31(6): 1408-1415. DOI: 10.3969/j.issn.1001-8719.2015.06.023 |
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| 作者姓名： | 薄守石 王剑 白飞 孙兰义 |
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| 作者单位： | 中国石油大学 化学工程学院, 山东 青岛 266580 |
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| 基金项目： | 国家自然科学基金项目(21276279)；中央高校基本科研业务费专项资金项目(27R1204008A)；高等学校博士学科点专项科研基金新教师类资助课(20120133120004)资助 |
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| 摘 要： | 以重油悬浮床加氢常用的鼓泡床和环流反应器为研究对象,选用欧拉两相流模型和RNG k ε 湍流模型对其在重油 氢气实际操作体系和工况下进行计算流体力学(CFD)模拟,考察不同表观气速下(001~01 m/s)2种反应器内整体气含率、气含率和液速径向分布的异同。结果表明,2种反应器内均形成了液相循环流动,但环流反应器的流动特性优于鼓泡床反应器,因此在模拟工况下环流反应器更适合重油悬浮床加氢工艺。
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| 关 键 词： | 悬浮床加氢 鼓泡床反应器 环流反应器 CFD模拟 流体力学 |
| 收稿时间： | 2014-07-04 |
Comparison of Hydrodynamic Characteristics in Two Heavy Oil Slurry Bed Hydrocracking Reactors |
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| Affiliation: | College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China |
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| Abstract: | Two-dimensional axisymmetric CFD (Computational Fluid Dynamics) simulations of bubble column and airlift reactors were performed based on Eulerian multiphase model and RNG k-ε turbulence model. The hydrodynamic characteristics of bubble column and airlift reactors, including total gas holdup, gas holdup and liquid velocity distribution, operation with a heavy oil-hydrogen system, were compared in a range of superficial gas velocities (001-01 m/s). The results indicated that liquid circulation flow was formed in the two slurry bed reactors. And airlift reactor is better suited for slurry bed hydrocracking process than bubble column reactor because of its larger gas holdup and liquid velocity. |
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| Keywords: | slurry bed hydrocracking bubble column reactor airlift reactor CFD simulation hydrodynamics |
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