[1]李蔚玲.双组分颗粒混合下气液固鼓泡床流动特性研究[J].南京师范大学学报(工程技术版),2017,17(04):059.[doi:10.3969/j.issn.1672-1292.2017.04.010]
 Li Weiling.Study on Hydrodynamic Characterisitics of Gas-Liquid-Solid BubbleColumn in the Context of Binary Mixture of Particles[J].Journal of Nanjing Normal University(Engineering and Technology),2017,17(04):059.[doi:10.3969/j.issn.1672-1292.2017.04.010]
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双组分颗粒混合下气液固鼓泡床流动特性研究
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南京师范大学学报(工程技术版)[ISSN:1006-6977/CN:61-1281/TN]

卷:
17卷
期数:
2017年04期
页码:
059
栏目:
能源与机械工程
出版日期:
2017-12-30

文章信息/Info

Title:
Study on Hydrodynamic Characterisitics of Gas-Liquid-Solid BubbleColumn in the Context of Binary Mixture of Particles
文章编号:
1672-1292(2017)04-0059-07
作者:
李蔚玲12
(1.南京师范大学能源与机械工程学院,江苏 南京 210042)(2.东南大学能源与环境学院,江苏 南京 210096)
Author(s):
Li Weiling12
(1. School of Energy and Mechanical Engineering,Nanjing Normal University,Nanjing 210042,China)(2.School of Energy and Environment,Southeast University,Nanjing 210096,China)
关键词:
颗粒混合气液固鼓泡床气液固流动数值模拟
Keywords:
particle mixturegas-liquid-solid bubble columngas-liquid-solid flownumerical simulation
分类号:
O359
DOI:
10.3969/j.issn.1672-1292.2017.04.010
文献标志码:
A
摘要:
对气液固鼓泡床中两种颗粒的气相、液相和固相各相流动进行数学建模,对相同密度不同颗粒尺寸的两组分颗粒混合,以及相同尺寸不同颗粒密度的两组分颗粒混合进行了数值模拟研究. 结果表明,不同颗粒尺寸双组分颗粒混合,加入的颗粒尺寸越大,靠近床层底部的颗粒更易被流化,同时颗粒尺寸较小的颗粒更易被流化. 不同颗粒密度双组分颗粒混合,更轻的颗粒的加入能够促进原颗粒的流化. 密度较大颗粒的加入对床内中下部气含率值的影响较大,颗粒密度越大,气含率值越低.
Abstract:
A mathematical model is built to describe the flow behaviors of the gas,liquid,solid of 2 particles. Numerical computations are conducted to investigate the effects of a binary mixture of particles having the same densities but different sizes,and a binary mixture of particles having the same sizes but different densities on the hydrodynamics of bubble column. Results indicate that the particles are fluidized easier at the bottom of the bed when adding larger size particles,and the particles with smaller sizes are also fluidized easier. The fluidization of the particles is promoted when adding the lighter particles. The particle density has a large influence on the gas holdup in the lower section of the bed,where the gas holdup decreases when the particle density becomes greater.

参考文献/References:

[1] FAN L S. Gas-Liquid-Solid fluidization engineering[M]. Boston:Butterworths,1989.
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[3]GANDHI B,PRAKASH A,BERGOUGNOU M A. Hydrodynamic behavior of slurry bubble column at high solids concentrations[J]. Powder technology,1999,103(2):80-94.
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[6]ANGELES M J,LEYVA C,ANCHEYTA J,et al. A review of experimental procedures for heavy oil hydrocracking with dispersed catalyst[J]. Cheminform,2014,45(9):274-294.
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备注/Memo

备注/Memo:
收稿日期:2017-07-21.
基金项目:南京师范大学科研启动项目(184080H202B73)、江苏省高校自然科学研究面上项目(17KJB470008).
通讯联系人:李蔚玲,博士,讲师,研究方向:气液固流动特性. E-mail:liweiling06@njnu.edu.cn
更新日期/Last Update: 2017-12-30