Study on micromixing and reaction process in a rotating packed bed

被引:12
作者
Zhang Jianwen [1 ,2 ,3 ]
Gao Dongxia [1 ,2 ]
Li Yachao [1 ,2 ]
He Jianyun [3 ]
机构
[1] Beijing Univ Chem Technol, Lab Fluid Flow & Heat Transfer, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, IGCIT, Beijing 100029, Peoples R China
[3] Beijing Univ Chem Technol, Beijing Key Lab Membrane Sci & Technol, Beijing 100029, Peoples R China
关键词
Rotating packed bed; Micromixing and reaction; Numerical simulation; Grid scale model; Sub-grid scale model; Segregation index; ABSORPTION; SIMULATION; REMOVAL; MODEL; FLOW;
D O I
10.1016/j.ijheatmasstransfer.2016.05.103
中图分类号
O414.1 [热力学];
学科分类号
摘要
The exploration on the microscale transport phenomena is of great significance to understand the mechanism of microscale mixing and chemical reaction in a rotating packed bed (RPB). In this paper, numerical investigation is carried out and compared with the experimental results. Two different scale reaction models are applied to simulate and the numerical result is in reasonable agreement with the experimental results. The fluid flow and the species transfer with a competitive and consecutive reaction are studied to obtain the evolution of the segregation index and flow field. Each environment changes and is updated continuously with the liquid film flowing outward, and the micromixing and reaction are influenced by the fractions p(1) and p(2) of different environments. It is evidenced that different factors such as rotational speeds, volume ratios and initial mixing concentration impose considerable influences on the micromixing and reaction processes. The micromixing time ranges about 5.2 x 10(-2)-1 x 10(-3) ms showing that micromixing performance in RPB is much better. The main product and by-product appear different evolution pattern along the package wires, which provide guideline for the optimization of RPB structure. The optimization on the RPB structure is provided and the simulation results clarify a deeper understanding on the micromixing and reaction features in RPB. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1063 / 1074
页数:12
相关论文
共 37 条
  • [1] CLOSURE PROBLEM FOR PARALLEL CHEMICAL-REACTIONS
    BALDYGA, J
    HENCZKA, M
    [J]. CHEMICAL ENGINEERING JOURNAL AND THE BIOCHEMICAL ENGINEERING JOURNAL, 1995, 58 (02): : 161 - 173
  • [2] [陈建峰 Chen Jianfeng], 2004, [化工学报, Journal of Chemical Industry and Engineering (China)], V55, P207
  • [3] Chen Jianfeng, 1997, CHIN J CHEM PHYS, V10, P5
  • [4] Chen Jianfeng, 2002, TECHNOLOGY APPL HIGH
  • [5] Hydrogen production from water gas shift reaction in a high gravity (Higee) environment using a rotating packed bed
    Chen, Wei-Hsin
    Syu, Yu-Jhih
    [J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2010, 35 (19) : 10179 - 10189
  • [6] Biodiesel production in a rotating packed bed using K/γ-Al2O3 solid catalyst
    Chen, Yi-Hung
    Huang, Yu-Hang
    Lin, Rong-Hsien
    Shang, Neng-Chou
    Chang, Ching-Yuan
    Chang, Chia-Chi
    Chiang, Pen-Chi
    Hu, Ching-Yao
    [J]. JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS, 2011, 42 (06) : 937 - 944
  • [7] Absorption of VOCs in a rotating packed bed
    Chen, YS
    Liu, HS
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2002, 41 (06) : 1583 - 1588
  • [8] Removal of CO2 from indoor air by alkanolamine in a rotating packed bed
    Cheng, Hsu-Hsiang
    Tan, Chung-Sung
    [J]. SEPARATION AND PURIFICATION TECHNOLOGY, 2011, 82 : 156 - 166
  • [9] Absorption of Hydrophobic Volatile Organic Compounds by a Rotating Packed Bed
    Chiang, Chia-Ying
    Liu, Yi-Ying
    Chen, Yu-Shao
    Liu, Hwai-Shen
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (27) : 9441 - 9445
  • [10] Micromixing Efficiency Enhancement in a Rotating Packed Bed Reactor with Surface-Modified Nickel Foam Packing
    Chu, Guang-Wen
    Song, Yin-Jiang
    Zhang, Wen-Jie
    Luo, Yong
    Zou, Hai-Kui
    Xiang, Yang
    Chen, Jian-Feng
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2015, 54 (05) : 1697 - 1702