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气-液-固三相流化床液相返混的研究(稳态法) 被引量:2

Studies on the Liquid Axial Mixing in Three-Phase Fluidized Bed (Steady Tracer Injection Method)
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摘要 采用稳态法研究了气速、液速、固体粒子直径及密度和床径对三相流化床液相返混的影响.根据实验数据,获得了如下的计算Pe_l的关联式:Pe_l=24.32(U_l/U_t)^(1.2)U_g^(-0.34)D_t^(-0.5) The effects of liquid and gas velocities, average diameter and density of solid particles and column diameter on liquid mixing in three-phase fluidized bed were determined.On the basis of the data obtained, the following correlation for Pe; was obtained:
机构地区 天津大学化工系
出处 《化工学报》 EI CAS 1983年第1期78-83,共6页 CIESC Journal
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同被引文献14

  • 1林诚 张济宇 林春深.挡板与固体含量对三相流化床气含率的影响[A]..第十届全国化学工程科技报告会[C].郑州:郑州工业大学,2000.603~607.
  • 2Choi K H, Chisti Y, Moo-Young M. Comparative evaluation of hydrodynamic and gas-liquid mass transfer characteristics in bubble column and airlift slurry reactors [J]. Chem Eng J, 1996, 62: 223~229.
  • 3Miyahara T, Kawate O. Hydrodynamics of a solid-suspended bubble column with a draught tube containing low-density particles [J]. Chem Eng Sci, 1992,47(1): 127~133.
  • 4Lu W J, Hwang S J, Chang C M. Liquid velocity and gas holdup in three-phase internal loop airlift reactors with low-density particles [J]. Chem Eng Sci, 1995, 50(8):1 301~1 310.
  • 5Obradovic B, Dudukovic A, Vunjak-Novakovic G. Local and overall mixing characteristics of the gas-liquid-solid airlift reactor [J]. Ind Eng Chem Res, 1994, 33: 698~702.
  • 6Palaskar S N, De J K, Pandit A B. Liquid phase RTD studies in sectionalized bubble column[J]. Chemical Engineering & Technology, 2000,23: 61~69.
  • 7Lakota A, Jazbec M, Levec J. Impact of structured packing on bubble column mass transfer characteristics part 1. backmixing in liquid phase[J]. Acta Chim Slov, 2001, 48:453~468.
  • 8李小明.气流床反应器液体停留时间研究[J].上海煤气,2011(2):4-7. 被引量:2
  • 9杨建州,张洪勋.折流元件对气升式环流反应器性能的影响─Ⅰ.气含率和液体循环[J].化工冶金,1999,20(4):365-370. 被引量:7
  • 10丛威,刘建国,欧阳藩,廖永红.三相气升式内环流反应器的液相混合特性[J].化工冶金,2000,21(1):76-79. 被引量:15

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