气升式浆态床外环流反应器流体力学性能研究

石油炼制与化工 ›› 2024, Vol. 55 ›› Issue (6): 115-121.

气升式浆态床外环流反应器流体力学性能研究

边清^1,2,唐晓津¹,杨涛¹

1. 中石化石油化工科学研究院有限公司
2. 中国石化齐鲁分公司氯碱厂

收稿日期:2023-08-21 修回日期:2024-04-01 出版日期:2024-06-12 发布日期:2024-05-28
通讯作者: 唐晓津 E-mail:tangxj.ripp@sinopec.com
基金资助:
国家973课题

HYDRODYNAMIC CHARACTERISTICS IN EXTERNAL-LOOP AIRLIFT SLURRY REACTORS

Received:2023-08-21 Revised:2024-04-01 Online:2024-06-12 Published:2024-05-28

摘要/Abstract

摘要： 针对气含率和浆液循环流速两个关键流体力学参数，系统研究了气升式浆态床外环流反应器的流体力学特性，掌握了气含率与浆液循环流速的变化规律。验证了体积膨胀法、压差法和电导探针法测量气含率的方法准确性。研究了气体分布器结构对气升式浆态床外环流反应器流体力学特性的影响，结果表明开孔向下双环管分布器的综合性能最优。气含率与浆液循环液速之间存在线性关系，建立了预测浆液循环流速的计算式，计算误差基本小于20%。

关键词: 气升式, 浆态床外环流反应器, 流体力学, 气含率, 浆液循环流速

Abstract: The hydrodynamic characteristics in an external-loop airlift were investigated and the influences of operating conditions on gas holdup and slurry circulating velocity were analyzed.Three measurement methods were used to obtain the values of gas holdup and the results showed that these methods were of good accuracies.Three types of gas distributors were used during the hydrodynamic experiments, and the pipe ring distributor with hold at the bottom was recommended based on the experimental data comparison. It was found the relationship between gas holdup and slurry circulating velocity was linear, and correlations were developed to predict the values of slurry circulating velocity with average error less than 20%.

Key words: airlift, external-loop slurry reactor, hydrodynamics, gas holdup, slurry circulating velocity

边清唐晓津杨涛. 气升式浆态床外环流反应器流体力学性能研究[J]. 石油炼制与化工, 2024, 55(6): 115-121.

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