Investigation of particle velocity in FCC gas-fluidized beds based on different measurement techniques

被引：45

作者：

Tebianian, Sina ^{[1
]}

Dubrawski, Kristian ^{[1
]}

Ellis, Naoko ^{[1
]}

Cocco, Ray A. ^{[2
]}

Hays, Roy ^{[2
]}

Karri, S. B. Reddy ^{[2
]}

Leadbeater, Thomas W. ^{[3
]}

Parker, David J. ^{[3
]}

Chaouki, Jamal ^{[4
]}

Jafari, Rouzbeh ^{[4
]}

Garcia-Trinanes, Pablo ^{[5
]}

Seville, Jonathan P. K. ^{[5
]}

Grace, John R. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z3, Canada

[2] Particulate Solid Res Inc, Chicago, IL 60632 USA

[3] Univ Birmingham, Positron Imaging Ctr, Birmingham B15 2TT, W Midlands, England

[4] Ecole Polytech, Dept Genie Chim, Montreal, PQ H3T 1J4, Canada

[5] Univ Surrey, Dept Chem & Proc Engn, Guildford GU2 7XH, Surrey, England

来源：

CHEMICAL ENGINEERING SCIENCE | 2015年 / 127卷

基金：

加拿大自然科学与工程研究理事会; 英国工程与自然科学研究理事会;

关键词：

Fluidized beds; Particle velocity; Optical fiber probes; Borescopic PIV; Radioactive particle tracking; Positron emission particle tracking; VALIDATION;

D O I：

10.1016/j.ces.2015.01.049

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The novel traveling fluidization column, designed and built to assure identical operating conditions, was deployed to compare alternate experimental measurement techniques for hydrodynamic characterization of gas-fluidized beds. This paper compares measurements of particle velocity obtained by radioactive particle tracking (RPT-non-invasive at the Ecole Polytechnique), positron emission particle tracking (PEPT-non-invasive at University of Birmingham), optical fibre probes (invasive at UBC) and borescopic high speed particle image velocimetry (invasive at PSRl) carried out with FCC particles of mean diameter 107 pm. All of the techniques provided similar trends with respect to time-average particle velocity profiles, but significant differences were observed in some cases. Analysis of the results, focusing on the physical principles of each measurement technique, provides valuable insights into the reasons for the observed discrepancies. The results also add to a unique hydrodynamic database for validation of CFD and other mechanistic models. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：310 / 322

页数：13

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