Processing, June 2018

3 Baeyens J D Geldart and S Y Wu Elutriation of fines from gas fluidized beds of Geldart A type powders e ect of adding super nes Powder Technology 1992 71 1 p 71 80 4 Cocco R et al Particle clusters in and above uidized beds Powder Technology 2010 203 1 p 3 11 5 Gary J H and G E Handwerk Petroleum Re ning 2001 Taylor Francis 6 Geldart D e expansion of bubbling uidised beds Powder Technology 1968 1 6 p 355 368 7 Geldart D et al The effect of the size of the nes on the udization behaviour of equlibrium cracking catalyst in Fluidization VI Proceedings of the International Conference on Fluidization 1989 Engineering Foundation 1989 8 Sadeghbeigi R Fluid Catalytic Cracking Handbook An Expert Guide to the Practical Operation Design and Optimization of FCC Units 2012 Butterworth Heinemann 9 Vogt E T C and B M Weckhuysen Fluid catalytic cracking recent developments on the grand old lady of zeolite catalysis Chemical Society Reviews 2015 44 20 p 7342 7370 10 Kaye B and R P Boardman Cluster Formation in Dilute Suspnsion in Symposium on the Interaction Between Fluids and Particles 1962 London Institution of Chemical Engineers 11 Subbarao D A model for cluster size in risers Powder Technology 2010 199 1 p 48 54 12 Fortes A F D D Joseph and T S Lundgren 36 Processing JUNE 2018 Nonlinear mechanics of uidization of beds of spherical particles Journal of Fluid Mechanics 2006 177 p 467 483 13 Jayaweera K O L F B J Mason and G W Slack e behaviour of clusters of spheres falling in a viscous uid Part 1 Experiment Journal of Fluid Mechanics 2006 20 1 p 121 128 14 Chew J W et al Review of entrainment correlations in gas solid fluidization Chemical Engineering Journal 2015 260 p 152 171 15 Yang N et al Simulation of Heterogeneous Structure in a Circulating Fluidized Bed Riser by Combining the Two Fluid Model with the EMMS Approach Industrial Engineering Chemistry Research 2004 43 18 p 5548 5561 16 Hays R et al Small Particles Cluster Formation in Fluidized Beds and its E ect on Entrainment in Circulating Fluidized Bed IX 2008 Hamburg Germany TuTech Innovation GmbH 17 Freeman R Measuring the flow properties of consolidated conditioned and aerated powders A comparative study using a powder rheometer and a rotational shear cell Powder Technology 2007 174 1 2 p 25 33 18 Freeman T Characterizing Powder Flow in Chemical Engineering 2011 Access Intelligence Online p 68 72 ASTM International ASTM D7743 12 Standard Test Method for Measuring the Minimum Fluidization Velocities of Free Flowing Powders in D1824 Characterization and Handling of Powders and Bulk Solids 2008 ASTM International West Conshohocken PA Jamie Clayton is operations director at powder characterization company Freeman Technology and is based at the companys headquarters in Tewkesbury U K He graduated from the University of Shef eld with a degree in control engineering and is responsible for all daily activities of the company including overall management of the administration production R D sales and customer support teams Clayton also works with the companys clients to provide applicationbased support He may be reached at jamie clayton@ freemantech co uk Dr Ray Cocco has been with Particulate Solid Research Inc PSRI for 12 years and is currently president and CEO Before PSRI he spent 17 years with The Dow Chemical Company where he led research and development efforts in numerous particle technology platforms Cocco was instrumental in bring in computational uid dynamics Six Sigma and Design for Six Sigma methodologies into Dows research environment Today he is a board member of the University of Florida Chemical Engineering Advisory Board Auburn University Chemical Engineering Advisory Board University College at Londons CNIE He has 55 publications three book chapters several patents and holds a Bachelor of Science degree in chemical engineering University of Florida and a doctorate degree Auburn University Freeman Technology www freemantech co uk