引入大颗粒助剂对径向移动床流动特性的影响

doi:10.11949/j.issn.0438-1157.20160358

化工学报 ›› 2016, Vol. 67 ›› Issue (8): 3313-3320.DOI: 10.11949/j.issn.0438-1157.20160358

引入大颗粒助剂对径向移动床流动特性的影响

卫思辰, 贾海兵, 范怡平, 卢春喜

中国石油大学(北京)重质油国家重点实验室, 北京 102249

收稿日期:2016-03-28 修回日期:2016-05-12 出版日期:2016-08-05 发布日期:2016-08-05
通讯作者: 范怡平
基金资助:
国家重点基础研究发展计划项目(2012CB215000)。

Effect of introducing large additive particles on flow characteristics in radial flow moving bed

WEI Sichen, JIA Haibing, FAN Yiping, LU Chunxi

State Key Laboratory of Heavy Oil, China University of Petroleum(Beijing), Beijing 102249, China

Received:2016-03-28 Revised:2016-05-12 Online:2016-08-05 Published:2016-08-05
Supported by:
supported by the National Basic Research Program of China (2012CB215000).

摘要/Abstract

摘要：

针对错流移动床存在的空腔和颗粒流动偏离平推流的不正常操作问题。在一套φ600 mm×1300 mm半圆锥形和柱形错流移动床大型冷模实验装置上，借助于大颗粒助剂的引入有效提高了错流移动床出现空腔的临界速度，解决了错流移动床操作弹性低的问题。理论分析和实验结果表明，混入适量的大颗粒助剂可使颗粒流动不均匀性得到明显改善。

关键词: 移动床, 空腔, 颗粒物料, 流动

Abstract:

It does exist that some of abnormal phenomena, such as cavities and particle flow variations from plug flow, are inevitable in cross-flow moving bed operations. In terms of the issues related to the abnormal operation phenomena, the experiment was conducted through a large cold model experimental facility consisting of a φ600 mm×1300 mm semi-conical and semi-cylindrical radial flow moving bed. It showed that, the critical velocity of forming cavity can be effectively increased through introducing coarse additive particles, hence the low elasticity of operation can be improved in cross-flow moving bed to some extent. Both theoretical analysis and experimental results showed that, the inhomogeneity of particle flow can be effectively improved by introducing coarse additive particles.

Key words: moving bed, cavity, granular materials, flow

中图分类号:

TQ021.1

卫思辰, 贾海兵, 范怡平, 卢春喜. 引入大颗粒助剂对径向移动床流动特性的影响[J]. 化工学报, 2016, 67(8): 3313-3320.

WEI Sichen, JIA Haibing, FAN Yiping, LU Chunxi. Effect of introducing large additive particles on flow characteristics in radial flow moving bed[J]. CIESC Journal, 2016, 67(8): 3313-3320.

参考文献 23

[1]	EL-HEDOK I A,WHITMER L,BROWN R C.The influence of granular flow rate on the performance of a moving bed granular filter[J].Powder Technology,2011,214(1):69-76.
[2]	张世方.催化重整工艺技术发展[J].中外能源,2012,17(6):60-65.ZHANG S F.Catalytic reforming process technology development[J].Sino-global Energy,2012,17(6):60-65.
[3]	PAENPONG C,PATTIYA A.Filtration of fast pyrolysis char fines with a cross-flow moving-bed granular filter[J].Powder Technology,2013,245(8):233-240.
[4]	TALLMAN M J,ENG C.Naphtha cracking for light olefins production[J].Petroleum Technology Quarterly,2010,15(4):87-91.
[5]	ZHAO J,HUANG J,WU J,et al.Modeling and optimization of the moving granular bed for combined hot gas desulfurization and dust removal[J].Powder Technology,2008,180(1):2-8.
[6]	BRIDGEWATER J.New territory:the chemical processing of solids:inaugural lecture of University of Birmingham[R].London:Macmillan,1981
[7]	Ⅲ F J D,JACKSON R,GINESTRA J C.The phenomenon of pinning in an annular moving bed reactor with crossflow of gas[J].Chemical Engineering Science,1986,41(6):1485-1495.
[8]	TAKAHASHI H,OHNO O,TAKEUCHI T.Analysis of gas flow in a solid-gas cross flow moving bed by the finite element method.[J].Kagaku Kōgaku Ronbunshū,1990,16(1):116-122.
[9]	王保平,庞桂赐,金涌.径向移动床反应器内贴壁现象的研究[J].石油学报(石油加工),1993,9(3):78-87.WANG B P,PANG G C,JIN Y.Study of pinning in a radial moving bed reactor[J].Acta Petrol.Sin.(Petrol.Process Section),1993,9(3):78-87.
[10]	PILCHER K A,BRIDGWATER J.Pinning in a rectangular moving bed reactor with gas cross-flow[J].Chemical Engineering Science,1990,45(8):2535-2542.
[11]	宋续祺,金涌,俞芷青,等.移动床径向反应器中气体离心流动对颗粒移动状况的影响[J].化工学报,1993,44(4):433-441.SONG X Q,JIN Y,YU Z Q,et al.The formation of cavity in moving bed radial flow reactor[J].Journal of Chemical Industry and Engineering (China),1993,44(4):433-441.
[12]	RAJNEESH S,GUPTA G S.Importance of frictional forces on the formation of cavity in a packed bed under cross flow of gas[J].Powder Technology,2003,134(134):72-85.
[13]	陈允华,朱学栋,吴勇强,等.整流子对错流移动床颗粒行为的影响[J].过程工程学报,2007,7(4):639-645.CHEN Y H,ZHU X D,WU Y Q,et al.Effects of internals on the particle behavior in a rectangular moving bed with gas cross-flow[J].The Chinese Journal of Process Engineering,2007,7(4):639-645.
[14]	曹晏,张建民,王洋,等.内构件对矩形移动床床内颗粒流动影响的试验研究[J].化学工业与工程,1999,16(2):3-7.CAO Y,ZHANG J M,WANG Y,et al.The experimental study on the effects of internals on particle flow in rectangular moving bed[J].Chemical Industry and Engineering,1999,16(2):3-7.
[15]	陈允华,朱学栋,吴勇强,等.移动床空腔现象及空腔尺寸[J].化工学报,2006,57(4):731-737.CHEN Y H,ZHU X D,WU Y Q,et al.Phenomenon of cavity and its size in rectangular moving bed[J].Journal of Chemical Industry and Engineering (China),2006,57(4):731-737.
[16]	许鹏凯,段学志,钱刚,等.混入粗颗粒对移动床中空腔的抑制效应[J].化学反应工程与工艺,2015,31(4):289-296.XU P K,DUAN X Z,QIAN G,et al.Inhibiting cavity formation by mixing coarse particles into a moving bed[J].Chemical Reaction Engineering and Technology,2015,31(4):289-296.
[17]	曹晏,张建民,王洋,等.渐缩下料段对其上柱形移动床内床层颗粒流动的影响[J].化学工业与工程,1997,14(4):5-10.CAO Y,ZHANG J M,WANG Y,et al.The effects of hoppers on particle flow in rectangular moving bed[J].Chemical Industry and Engineering,1997.14(4):5-10.
[18]	龙文宇.气固错流移动床流动特性[D].北京:中国石油大学(北京),2014.LONG W Y.Hydrodynamic characteristics of cross-flow moving beds[D].Beijing:China University of Petroleum,2014.
[19]	武锦涛,陈纪忠,阳永荣.移动床中颗粒运动的微观分析[J].浙江大学学报(工学版),2006,40(5):864-868.WU J T,CHEN J Z,YANG Y Y.Microscopic analysis of particle flow in moving bed[J].Journal of Zhejiang University (Engineering Science),2006,40(5):864-868.
[20]	龙文宇,徐军,范怡平,等.梯形移动床径向反应器内颗粒的贴壁现象分析[J].化工学报,2014,65(4):1179-1185.LONG W Y,XU J,FAN Y P,et al.Phenomenon of pinning in trapezoidal moving beds with cross-flow[J].CIESC Journal,2014,65(4):1179-1185.
[21]	WU C L,AYENI O,BERROUK A S,et al.Parallel algorithms for CFD-DEM modeling of dense particulate flows[J].Chemical Engineering Science,2014,118(18):221-244.
[22]	ZHU J X,MANYELE S V.Radial nonuniformity index (RNI) in fluidized beds and other multiphase flow systems[J].Canadian Journal of Chemical Engineering,2001,79(2):203-213.
[23]	NEDDERMAN R M,TÜZÜN U.A kinematic model for the flow of granular materials[J].Powder Technology,1979,22(2):243-253.

引入大颗粒助剂对径向移动床流动特性的影响

Effect of introducing large additive particles on flow characteristics in radial flow moving bed

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