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

doi:10.3969/j.issn.1006-396X.2017.04.002

Journal of Petrochemical Universities ›› 2017, Vol. 30 ›› Issue (4): 6-11.DOI: 10.3969/j.issn.1006-396X.2017.04.002

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

1.CollegeofChemistry,ChemicalEngineeringandEnvironmentEngineering,LiaoningShihuaUniversity,FushunLiaoning 113001,China;
2.CNOOCResearchInstituteofOilandPetrochemicals,Beijing 100000,China

Received:2017-05-11 Revised:2017-06-18 Published:2017-08-29 Online:2017-08-29

130L环隙气升式旋流反应器的局部相含率研究

郭秋丽¹,赵德智¹,刘永民¹,宋官龙¹,侯章贵²,田义斌²,朱元宝²

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

通讯作者: 赵德智(1959-),男,教授,从事重油悬浮床加氢工艺研发;E-mail:fszhaodezhi@163.com
作者简介:郭秋丽(1990-),女,硕士研究生,从事重油加氢环流反应器研究;E-mail:1254647356@qq.com
基金资助:
中海油惠州炼化公司资助项目(HL00FW(P)2014-0005)。

Abstract

Abstract:

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.

Key words: Helical flow airlift loop reactor, Gas holdup, Solid holdup, Types of draft tube

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60mm。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。

关键词: 气升式旋流反应器, 气含率, 固含率, 导流筒型式

GuoQiuli,ZhaoDezhi,LiuYongmin,SongGuanlong,et al. Study on Phase Holdup in 130 L Annular HelicalFlow Airlift Loop Reactor[J]. Journal of Petrochemical Universities, 2017, 30(4): 6-11.

郭秋丽,赵德智,刘永民,等. 130L环隙气升式旋流反应器的局部相含率研究[J]. 石油化工高等学校学报, 2017, 30(4): 6-11.

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

130L环隙气升式旋流反应器的局部相含率研究

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