石油化工2023，Vol.52Issue(11)：1544-1550,7.DOI:10.3969/j.issn.1000-8144.2023.11.009
基于微气泡强化的浆态床反应器流体力学特性
Fluid mechanics characteristics of microbubble enhanced slurry bed reactor
摘要
Abstract
The effects of microbubbles on gas holdup and axial liquid velocity within the slurry bed reactor were investigated using conductivity probes and Pavlov tubes.The experimental results show that as the microbubble intake ratio(Qg-micro/Qg)increases,the average gas holdup initially increases and then decreases,with an optimal Qg-micro/Qg of 0.28,and the local gas holdup in the center of reactor bottom increases significantly,while that near the wall changes less.Besides,the axial liquid velocity in the center of reactor bottom increases with the Qg-micro/Qg,while the direction of liquid velocity near the wall is remained downward.However,the influence of the gas distributor on gas holdup and axial liquid velocity gradually weakens with an increase of the axial height of the reactor,resulting in a smaller radial difference in the gas holdup and a flatter radial distribution curve of axial liquid velocity.关键词
浆态床/微气泡/气含率/轴向液速/气体分布器Key words
slurry bed/microbubble/gas holdup/axial liquid velocity/gas distributor分类
化学化工引用本文复制引用
马树刚,卢竟蔓,苏武,黄正梁,谭青峰,帅云..基于微气泡强化的浆态床反应器流体力学特性[J].石油化工,2023,52(11):1544-1550,7.基金项目
国家自然科学基金项目(22078285,22208289). （22078285,22208289）
