多管气升式环流反应器的液体循环

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多管气升式环流反应器的液体循环

刘永民^a; 刘铮^b; 穆克^a; 袁乃驹^b

^a Department of Petrochemical Engineering, Fushun Petroleum Institute, Fushun 113001, China
^b Department of Chemical Engineering, Tsinghua University , Beijing 100084, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2000-09-28 发布日期:2000-09-28
通讯作者: 刘永民

Liquid Circulation in a Multi-tube Air-lift Loop Reactor

LIU Yongmin^a; LIU Zheng^b; MU Ke^a; YUAN Naiju^b

^a Department of Petrochemical Engineering, Fushun Petroleum Institute, Fushun 113001, China
^b Department of Chemical Engineering, Tsinghua University , Beijing 100084, China

Received:1900-01-01 Revised:1900-01-01 Online:2000-09-28 Published:2000-09-28

摘要/Abstract

摘要： A multi-tube air-lift loop reactor (MT-ALR) is presented in this paper. Based on the energy
conserva tion, a mathematical model describing the liquid circulation flow rate was
developed, which was determined by gas velocity, the cross areas of riser and downcomer,
gas hold-up and the local frictional loss coefficient. The experimen tal data indicate that
either increase of gas flow rate or reduction of the downcomer diameter contributes to
higher liquid circulation rate. The correlation between total and the local frictional loss
coefficients was also established. Effects of gas flowrate in two risers and diameter of
downcomer on the liquid circulation rate were examined. The value of total frictional loss
coefficient was measured as a function of the cross area of downcomer and independent of
the gas flow rate. The calculated results of liquid circulation rates agreed well with the
experimental data with an average relative error of 9.6％.

关键词: reactor;air-lift loop reactor;multi-tube;liquid circulation velocity;frictional loss coefficient

Abstract: A multi-tube air-lift loop reactor (MT-ALR) is presented in this paper. Based on the energy
conserva tion, a mathematical model describing the liquid circulation flow rate was
developed, which was determined by gas velocity, the cross areas of riser and downcomer,
gas hold-up and the local frictional loss coefficient. The experimen tal data indicate that
either increase of gas flow rate or reduction of the downcomer diameter contributes to
higher liquid circulation rate. The correlation between total and the local frictional loss
coefficients was also established. Effects of gas flowrate in two risers and diameter of
downcomer on the liquid circulation rate were examined. The value of total frictional loss
coefficient was measured as a function of the cross area of downcomer and independent of
the gas flow rate. The calculated results of liquid circulation rates agreed well with the
experimental data with an average relative error of 9.6％.

Key words: reactor, air-lift loop reactor, multi-tube, liquid circulation velocity, frictional loss coefficient

刘永民, 刘铮, 穆克, 袁乃驹. 多管气升式环流反应器的液体循环[J]. CIESC Journal.

LIU Yongmin, LIU Zheng, MU Ke, YUAN Naiju. Liquid Circulation in a Multi-tube Air-lift Loop Reactor[J]. .

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多管气升式环流反应器的液体循环

Liquid Circulation in a Multi-tube Air-lift Loop Reactor

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