130L环隙气升式旋流反应器的局部相含率研究  

Study on Phase Holdup in 130 L Annular Helical-Flow Airlift Loop Reactor

作　　者：郭秋丽[1] 赵德智[1] 刘永民[1] 宋官龙[1] 侯章贵 田义斌 朱元宝 

机构地区：[1]辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001 [2]中海油炼油化工科学研究院,北京100000

出　　处：《石油化工高等学校学报》2017年第4期6-11,共6页Journal of Petrochemical Universities

基　　金：中海油惠州炼化公司资助项目(HL00FW(P)2014-0005)

摘　　要：为给渣油加氢反应器的工业放大提供参考,在130L环隙气升式旋流反应器中,以空气-水-717型阴离子交换树脂为三相物系,研究了表观气速、底部间隙、固体装载量、导流筒型式、乙醇体积分数对相含率的影响。结果表明,上升区局部气含率随表观气速、乙醇体积分数的增加而增加,随固体装载量的增加而降低,随底部间隙的增加先增加而后减小,底部间隙最优值为60 mm。当导流筒型式不同时,气含率由大到小依次为:翅片型、喇叭口型、传统圆柱型。在表观气速为0.239、0.478cm/s时,上升区局部固含率沿轴向高度呈现出"下浓上稀"的趋势;当表观气速为0.597、0.836cm/s时,上升区局部固含率轴向分布均匀。上升区局部固含率随底部间隙的增大而减小,随乙醇体积分数的增加而变化不大。The local phase holdup in 130 L helical-flow airlift loop reactor was studied for the scale-up of residual slurry reactor.Different operation conditions, including superficial gas velocity, the bottom gap, solid loading, different types of draft tube, and ethanol addition were adopted to demonstrate their effects on phase holdup for air-water-717 type anion exchange resin system.The results show that as the gas velocity and the amount of ethanol added increase, the local gas holdup in the riser increases.It decreases with the increasing of solid loading.As bottom gap increases, it increases first and then decreases.The optimal value of bottom gap is 60 mm.The gas holdup from big to small is as follows： the finned, the trumpet-shaped, and the smoothed.When gas velocity is in range of 0.239-0.478 cm/s, the local solid holdup in the riser is much denser at the bottom.When gas velocity is in range of 0.597-0.836 cm/s, the axial profiles of solid volume fraction become uniform.With the bottom gap increasing, the local solid holdup decreases.And it shows little change at different ethanol concentrations.

关 键 词：气升式旋流反应器 气含率 固含率 导流筒型式 

分 类 号：TE682[石油与天然气工程—油气加工工程] TQ052.5[化学工程]