固含率对沸腾床反应器气泡行为的影响

doi:10.11949/j.issn.0438-1157.20180574

化工学报 ›› 2018, Vol. 69 ›› Issue (11): 4763-4769.DOI: 10.11949/j.issn.0438-1157.20180574

• 催化、动力学与反应器 • 上一篇下一篇

固含率对沸腾床反应器气泡行为的影响

朱闯杰¹, 岳志¹, 黄子宾¹, 程振民¹, 杨涛², 陈博², 葛海龙², 方向晨²

1. 化学工程联合国家重点实验室, 华东理工大学, 上海 200237;
2. 中国石化大连石油化工研究院, 辽宁大连 116045

收稿日期:2018-05-29 修回日期:2018-09-26 出版日期:2018-11-05 发布日期:2018-11-05
通讯作者: 程振民
基金资助:
国家自然科学基金项目（21676085，61627803）；中国石化重大科技专项“沸腾床渣油加氢成套技术开发及工业应用”项目（118013）。

Effects of solid holdup on bubble behavior in ebullated-bed reactor

ZHU Chuangjie¹, YUE Zhi¹, HUANG Zibin¹, CHENG Zhenmin¹, YANG Tao², CHEN Bo², GE Hailong², FANG Xiangchen²

1. State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
2. SINOPEC Dalian Research Institute of Petroleum and Petrochemicals, Dalian 116045, Liaoning, China

Received:2018-05-29 Revised:2018-09-26 Online:2018-11-05 Published:2018-11-05
Supported by:
supported by the National Natural Science Foundation of China (21676085, 61627803) and the Key Research Project "Packaged Technology Development in Residue Oil Hydroprocessing and Industrial Applications" supported by the SINOPEC(118013).

摘要/Abstract

摘要：

采用动态气体逸出法，在高7.0 m、直径0.3 m的有机玻璃塔中研究了固含率对沸腾床反应器内气泡行为特性的影响。在表观气速2.16~21.62 cm/s和固含率9.8%~39.0%（体积分数）范围内测定了反应器内的总气含率、大小气泡含率、大小气泡上升速度及其尺寸等参数。结果表明：总气含率随着表观气速的增大而增大，随着固含率的增大而减小。随着表观气速的增大，大气泡含率、大气泡直径及其上升速度均呈增大趋势；小气泡含率明显增大，但小气泡上升速度和直径趋于减小。随着固含率的增大，大气泡含率略有降低，但大气泡直径及其上升速度都明显增大；当固含率超过19.5%（体积分数）后，小气泡上升速度几乎下降为0；当固含率达到29.3%（体积分数）时，小气泡基本消失。

关键词: 沸腾床, 气泡分布, 两级气泡模型, 气含率, 固含率

Abstract:

To study the effects of solid holdup on the characteristics of bubble behavior in an ebullated-bed reactor, dynamic gas disengagement was used in a plexiglas column of 7.0 m in height and 0.3 m in diameter under the condition of solid concentration from 9.8% (vol) to 39.0% (vol) by the total liquid and solid volume in the superficial gas velocity of 2.16-21.62 cm/s. The total gas holdup, bubble rise velocities, fractions and diameters of large and small bubbles were measured separately. The results show that the total gas holdup increases with the increase of superficial gas velocity, and decreases with the increase of solid holdup. With the increase of superficial gas velocity, the fraction, rising velocity, and diameter of large bubbles all increase. While for small bubbles, only their holdup increases obviously, but their rising velocity and diameter tend to decrease. With the increase of solid holdup, the rising velocity and diameter of large bubbles increase remarkably, but their holdup decreases slightly. When the solid content exceeds 19.5%(vol), the rising rate of small bubbles decreases to almost zero. When the solid content reaches 29.3%(vol), the small bubbles almost disappear.

Key words: fluidized-bed, gas-liquid-solid mini-fluidized bed, residence time distribution, laminar flow, multiphase flow

中图分类号:

TQ028.1

朱闯杰, 岳志, 黄子宾, 程振民, 杨涛, 陈博, 葛海龙, 方向晨. 固含率对沸腾床反应器气泡行为的影响[J]. 化工学报, 2018, 69(11): 4763-4769.

ZHU Chuangjie, YUE Zhi, HUANG Zibin, CHENG Zhenmin, YANG Tao, CHEN Bo, GE Hailong, FANG Xiangchen. Effects of solid holdup on bubble behavior in ebullated-bed reactor[J]. CIESC Journal, 2018, 69(11): 4763-4769.

参考文献 23

[1]	TAILLEUR R G, CAPRIOLI L. Catalyst pore plugging effects on hydrocracking reactions in an Ebullated bed reactor operation[J]. Catalysis Today, 2005, 109(1/2/3/4):185-194.
[2]	YE S S, ZHENG J B, WANG J X, et al. Modeling the height of high-pressure ebullated beds based on superficial energy[J]. Chemical Engineering Journal, 2015, 267:124-131.
[3]	PJONTEK D, MCKNIGHT C A, WIENS J, et al. Ebullated bed fluid dynamics relevant to industrial hydroprocessing[J]. Chemical Engineering Science, 2015, 126:730-744.
[4]	郭坤宇, 王铁峰, 邢楚填, 等. 浆态床反应器流体力学行为研究及工业应用[J]. 化工学报, 2014, 65(7):2454-2464. GUO K Y, WANG T F, XING C T, et al. Hydrodynamics study and industrial applications of slurry reactors[J]. CIESC Journal, 2014, 65(7):2454-2464.
[5]	CHENG Z M, HUANG Z B, YANG T, et al. Modeling on scale-up of an ebullated-bed reactor for the hydroprocessing of vacuum residuum[J]. Catalysis Today, 2014, 220:228-236.
[6]	VANDU C O, KOOP K, KRISHNA R. Large bubble sizes and rise velocities in a bubble column slurry reactor[J]. Chem. Eng. Technol., 2004, 27(11):1195-1199.
[7]	MARETTO C, KRISHNA R. Modelling of a bubble column slurry reactor for Fischer-Tropsch synthesis[J]. Catalysis Today, 1999, 52(2/3):279-289.
[8]	KOIDE K, TAKAZAWA A, KOMURA M, et al. Gas holdup and volumetric liquid-phase mass transfer coefficient in solid-suspended bubble columns[J]. Chem. Eng. Japan, 1984, 17:459-466.
[9]	FAN L S, YANG G Q, LEE D J, et al. Some aspects of high-pressure phenomena of bubbles in liquids and liquid-solid suspensions[J]. Chemical Engineering Science, 1999, 54:4681-4689.
[10]	GANDHI B, PRAKASH A, BERGOUGNOU M. Hydrodynamic behavior of slurry bubble column at high solid concentrations[J]. Powder Technology, 1999, 103(2):80-94.
[11]	LI H, PRAKASH A. Influence of slurry concentrations on bubble population and their rise velocities in a three-phase slurry bubble column[J]. Powder Technology, 2000, 113:158-167.
[12]	靳海波, 杨索和, 佟泽民. γ射线透射技术测量气液鼓泡塔内气含率的轴向分布[J]. 化工学报, 2004, 55(9):1523-1527. JIN H B, YANG S H, TONG Z M. Application of γ-ray attenuation for axial distribution of holdups in large-scale bubble column with evaluated pressure[J]. Journal of Chemical Industry and Engineering (China), 2004, 55(9):1523-1527.
[13]	KRISHNA R, VAN BATEN J M, URSEANU M I, et al. Design and scale up of a bubble column slurry reactor for Fischer-Tropsch synthesis[J]. Chemical Engineering Science, 2001, 56:537-545.
[14]	SRIRAM K, MANN R. Dynamic gas disengagement:a new technique for assessing the behavior of bubble column[J]. Chemical Engineering Science, 1977, 32(6):571-580.
[15]	SHAH Y T, JOSEPH S, SMITH D N, et al. Two-bubble class model for churn turbulent bubble-column reactor[J]. Industrial & Engineering Process Design and Development, 1985, 24(4):1096-1104.
[16]	KRISHNA R, VAN BATEN J M, URSEANU M I, et al. A scale up strategy for bubble column slurry reactors[J]. Catalysis Today, 2001, 66:199-207.
[17]	KRISHNA R. A scale-up strategy for a commercial scale bubble column slurry reactor for Fischer-Tropsch synthesis[J]. Oil & Gas Science and Technology, 2000, 55(4):359-393.
[18]	DAVIES R M, TAYLOR G. The mechanics of large bubbles rising through extended liquids and through liquids in tubes[J]. Proceedings of the Royal Society A, 1950, 200(1062):375-390.
[19]	KARA S, KELKAR B G, SHAH Y T, et al. Hydrodynamics and axial mixing in a three-phase bubble column[J]. Industrial & Engineering Chemistry Process Design and Development, 1982, 21(4):584-594.
[20]	LIU M L, WANG T F, YU W, et al. Hydrodynamics of a slurry airlift reactor at high solid concentrations[J]. Chemical Engineering Science, 2007, 62(24):7098-7106.
[21]	JAMIALAHMADI M, MÜLLER-STEINHAGEN H. Effect of solid particles on gas hold-up in bubble columns[J]. The Canadian Journal of Chemical Engineering, 1991, 69:390-397.
[22]	石岩, 黄子宾, 程振民, 等. 鼓泡塔反应器的两级气泡模型参数研究[J]. 化学工程, 2016, 44(1):43-48. SHI Y, HUANG Z B, CHENG Z M, et al. Two-bubble class model parameters in a bubble column[J]. Chemical Engineering (China), 2016, 44(1):43-48.
[23]	张同旺, 靳海波, 何广湘, 等. 加压大型鼓泡床反应器中气泡上升速率的研究[J]. 石油化工, 2003, 32(2):129-132. ZHANG T W, JIN H B, HE G X, et al. Experimental research of bubble rising velocity in pressured bubble column[J]. Petrochemical Technology, 2003, 32(2):129-132.

固含率对沸腾床反应器气泡行为的影响

Effects of solid holdup on bubble behavior in ebullated-bed reactor

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