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费聿超, 闫岩, 付晓铮, 宋博宇, 李海涛, 张忠国. 环形流化床光催化氧化反应器流场数值模拟[J]. 环境工程学报, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
引用本文: 费聿超, 闫岩, 付晓铮, 宋博宇, 李海涛, 张忠国. 环形流化床光催化氧化反应器流场数值模拟[J]. 环境工程学报, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
shu
FEI Yuchao, YAN Yan, FU Xiaozheng, SONG Boyu, LI Haitao, ZHANG Zhongguo. Flow-field simulation of annular fluidized bed photocatalytic oxidation reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
Citation: FEI Yuchao, YAN Yan, FU Xiaozheng, SONG Boyu, LI Haitao, ZHANG Zhongguo. Flow-field simulation of annular fluidized bed photocatalytic oxidation reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
shu

环形流化床光催化氧化反应器流场数值模拟

  • 1.

    中国轻工业节能节水与废水资源化重点实验室(轻工业环境保护研究所), 北京 100089

  • 2.

    中国科学院过程工程研究所多相复杂系统国家重点实验室, 北京 100190

  • 基金项目:

    国家科技部科研院所技术开发研究专项资金项目（2013EG111129）

    北京市科学技术研究院海外人才专项资助项目（OTP-2013-015）

  • 中图分类号: X131.2

Flow-field simulation of annular fluidized bed photocatalytic oxidation reactor

  • 1.

    Key Laboratory of Energy-Water Conservation and Wastewater Resources Recovery(Environment Protection Research Institute of Light Industry), China National Light Industry, Beijing 100089, China

  • 2.

    State Key Laboratory of Multi-Phase Complex Systems, Institute of Process Engineering, Chinese Academy Sciences, Beijing 100190, China

  • Fund Project:

  • 摘要: 采取计算流体力学（CFD）方法对环形流化床光催化氧化反应器内部流场进行了模拟计算，重点考察了重力、废水流速、反应器放置方式等对微米级TiO2催化剂浓度分布、颗粒温度的影响。结果表明，对于水平放置的反应器，催化剂浓度分布受重力影响比较显著，且增大反应器入口处废水流速，催化剂颗粒浓度径向分布会趋于均匀；增大反应器入口处废水流速，可以提高边界层中催化剂颗粒温度，促进催化剂颗粒向流体主体做径向运动。与水平放置相比较，反应器竖直放置使流场中催化剂浓度径向分布更均匀，有利于提高光催化氧化反应的速率和效率。
    Abstract: The flow-field of an annular fluidized bed reactor for photocatalytic oxidation process was simulated by the computational fluid dynamics (CFD) method. It was found that for a horizontal reactor, the radial concentration distribution of the micron-scale catalyst particles in wastewater is remarkably affected by the gravity, and it tends to become uniform with the increase in the inlet flow velocity of the wastewater. Furthermore, the particle temperature of the catalyst at the boundary increases with the wastewater flow velocity at the entrance, which induces the catalyst particles to radially flow toward bulk solution. The radial concentration distribution of catalyst particles in a vertical reactor is more uniform than that in a horizontal reactor, which is beneficial to increasing the reaction rate and efficiency of the photocatalytic oxidation process.
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出版历程
  • 收稿日期:  2016-03-18
  • 刊出日期:  2016-12-08
费聿超, 闫岩, 付晓铮, 宋博宇, 李海涛, 张忠国. 环形流化床光催化氧化反应器流场数值模拟[J]. 环境工程学报, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
引用本文: 费聿超, 闫岩, 付晓铮, 宋博宇, 李海涛, 张忠国. 环形流化床光催化氧化反应器流场数值模拟[J]. 环境工程学报, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
shu
FEI Yuchao, YAN Yan, FU Xiaozheng, SONG Boyu, LI Haitao, ZHANG Zhongguo. Flow-field simulation of annular fluidized bed photocatalytic oxidation reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
Citation: FEI Yuchao, YAN Yan, FU Xiaozheng, SONG Boyu, LI Haitao, ZHANG Zhongguo. Flow-field simulation of annular fluidized bed photocatalytic oxidation reactor[J]. Chinese Journal of Environmental Engineering, 2016, 10(12): 6873-6878. doi: 10.12030/j.cjee.201506034
shu

环形流化床光催化氧化反应器流场数值模拟

  • 1. 中国轻工业节能节水与废水资源化重点实验室(轻工业环境保护研究所), 北京 100089
  • 2. 中国科学院过程工程研究所多相复杂系统国家重点实验室, 北京 100190
  • 收稿日期:  2016-03-18
基金项目:

国家科技部科研院所技术开发研究专项资金项目（2013EG111129）

北京市科学技术研究院海外人才专项资助项目（OTP-2013-015）

摘要: 采取计算流体力学（CFD）方法对环形流化床光催化氧化反应器内部流场进行了模拟计算，重点考察了重力、废水流速、反应器放置方式等对微米级TiO2催化剂浓度分布、颗粒温度的影响。结果表明，对于水平放置的反应器，催化剂浓度分布受重力影响比较显著，且增大反应器入口处废水流速，催化剂颗粒浓度径向分布会趋于均匀；增大反应器入口处废水流速，可以提高边界层中催化剂颗粒温度，促进催化剂颗粒向流体主体做径向运动。与水平放置相比较，反应器竖直放置使流场中催化剂浓度径向分布更均匀，有利于提高光催化氧化反应的速率和效率。

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