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Book Hydrodynamics and Liquid solid Mass Transfer in Non conventional Fluidized Beds

Download or read book Hydrodynamics and Liquid solid Mass Transfer in Non conventional Fluidized Beds written by Jianzhong Yang and published by . This book was released on 1998 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Transport in Fluidized Particle Systems

Download or read book Transport in Fluidized Particle Systems written by Laxmangudi Krishnamurthy Doraiswamy and published by Elsevier Publishing Company. This book was released on 1989 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Processes in Engineering is a new multidisciplinary series of books intended to provide, in an integrated fashion, authoritative and timely coverage of selected topics in fluid mechanics, heat and mass transfer. The series will publish edited works on coherent themes of current and potential application as well as monographs and advanced reference works for researchers, advanced students, practicing engineers and applied scientists. This first volume covers transport processes in several major areas of application of fluidized-bed contactors. It does not attempt to achieve an exhaustive treatment of its subject, rather it includes areas which constitute important non-conventional applications of fluidized-bed systems, offering something new even to those already well-versed in fluidization technology. The book will be of interest to engineers and technologists in the chemical, agricultural, food, mechanical, metallurgical, mineral processing and energy engineering areas with an interest in current or potential applications involving conventional and/or modified fluidized beds.

Book Hydrodynamics and Mass Transfer Studies in High Pressure Gas liquid and Gas liquid solid Fluidization

Download or read book Hydrodynamics and Mass Transfer Studies in High Pressure Gas liquid and Gas liquid solid Fluidization written by Wai Man R. Lau and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Slurry bubble columns and gas-solid fluidized bed reactors are some of the most commonly used industrial processes. Considerable interests have been recognized in the field of physical, chemical, petrochemical, electrochemical, and biochemical operations (Fan, 1989). In these reactor systems, large axial dispersion of phases and high flow patterns can be achieved by the excellent macromixing characteristics. It also provides excellent heat and mass transfer without the aid of external mechanisms and relatively easy operation. Despite the advantages of operations, the transport behavior in these systems is very complex and a comprehensive knowledge of the hydrodynamics, heat and mass transfer and mixing are required for successful application of these systems. Some aspects of the fundamental characteristics of evaporative liquid jets in gas-liquid-solid flows are studied and some pertinent literature is reviewed. It is found that the injection of an evaporative liquid jet decreases the minimum fluidization velocity at a high pressure due to the additional gas flow generated from liquid evaporation. Fluidizing gas velocities have no significant effect on the jet penetration length in a dense phase fluidized bed while it reduces the radial dispersed distance of the evaporative liquid. The tomographic images of liquid nitrogen injection in a dense phase fluidized bed indicate a distribution of reduced bubble sizes compared to a dry bed. The hydrodynamics, gas-liquid mass transfer properties and liquid entrainment phenomena in a high pressure and high temperature bubble column is investigated. Effects of pressure on hydrodynamics and mass transfer properties are mainly through the change in gas and liquid physical properties, which in turn changes the bubble dynamics that govern the transport phenomena. Experimental results show that liquid velocities have a direct influence on kl while other factors have a dominant effect on the interfacial area over kl. Liquid entrainment in bubble columns is controlled by the droplet formation during bubble bursting at interface. Effect of pressure on liquid entrainment is to due to the higher drag force exerted on the liquid droplet with higher gas density and the formation of smaller droplet by the smaller bubbles at high pressure.

Book Hydrodynamics and Mass Transfer in Three phase Fluidized Beds with Highly Viscous Liquids

Download or read book Hydrodynamics and Mass Transfer in Three phase Fluidized Beds with Highly Viscous Liquids written by Akash N. Patwari and published by . This book was released on 1983 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hydrodynamics  Mixing  Gas liquid Mass Transfer  and Biological Applications of a Three phase Fluidized Bed of Low Density Particles

Download or read book Hydrodynamics Mixing Gas liquid Mass Transfer and Biological Applications of a Three phase Fluidized Bed of Low Density Particles written by Wen-Tzung Tang and published by . This book was released on 1988 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Hydrodynamics and Mass Transfer Studies in Three Phase Fluidized Beds

Download or read book Hydrodynamics and Mass Transfer Studies in Three Phase Fluidized Beds written by Vinodkumar R. Dhanuka and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Spouted and Spout Fluid Beds

Download or read book Spouted and Spout Fluid Beds written by Norman Epstein and published by Cambridge University Press. This book was released on 2010-12-23 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the pioneering text by Mathur and Epstein over 35 years ago, much of the work on this subject has been extended or superseded, producing an enormous body of scattered literature. This edited volume unifies the subject, pulling material together and underpinning it with fundamental theory to produce the only complete, up-to-date reference on all major areas of spouted bed research and practice. With contributions from internationally renowned research groups, this book guides the reader through new developments, insights and models. The hydrodynamic and reactor models of spouted and spout-fluid beds are examined, as well as such topics as particle segregation, heat and mass transfer, mixing and scale-up. Later chapters focus on drying, particle-coating and energy-related applications based on spouted and spout-fluid beds. This is a valuable resource for chemical and mechanical engineers in research and industry.

Book Fluidization

    Book Details:
  • Author : Musun Guo
  • Publisher : Ellis Horwood
  • Release : 1992
  • ISBN :
  • Pages : 304 pages

Download or read book Fluidization written by Musun Guo and published by Ellis Horwood. This book was released on 1992 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Outlining the basic concepts used in the analysis of fluidization problems, this text covers the development of various processes, equipment, and devices for fluidized solids. Topics examined include fluidized leaching and washing, and solids mixing and segregation.

Book Hydrodynamics and Heat Transfer in Fluidized Beds

Download or read book Hydrodynamics and Heat Transfer in Fluidized Beds written by S. S. Zabrodsky and published by MIT Press (MA). This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Chemical Micro Process Engineering

Download or read book Chemical Micro Process Engineering written by Volker Hessel and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 681 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micro process engineering is approaching both academia and industry. With the provision of micro devices, systems and whole plants by commercial suppliers, one main barrier for using these units has been eliminated. This book focuses on processes and their plants rather than on devices: what is 'before', 'behind' and 'around' micro device fabrication - and gives a comprehensive and detailed overview on the micro-reactor plants and three topic-class applications which are mixing, fuel processing, and catalyst screening. Thus, the book reflects the current level of development from 'micro-reactor design' to 'micro-reactor process design'.

Book The Three phase Inverse Fluidized Bed

Download or read book The Three phase Inverse Fluidized Bed written by Volen Rossenov Nikolov and published by . This book was released on 1998 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Dispersion and Mass Transfer Coefficients in Fluidized Beds

Download or read book Dispersion and Mass Transfer Coefficients in Fluidized Beds written by Mayank Kashyap and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study covers three Geldart groups, and includes state-of-the-art experimental measurements and first-principles prediction... The authors solved a longstanding problem in fluidization, namely extremely low Sherwood number of fine particles in fluidized beds... The authors showed that the well-known core-annulus profile reverses in slugging fluidization of Geldart D particles due to particle inertia effects... This new finding is a robust and important one since core-annulus behavior is not desired... These contributions to the field of particle technology are of high impact, and expected to be of lasting influence..." -Christine Hrenya, Professor of Chemical and Biological Engineering, University of Colorado at Boulder. "The authors have shown that we can eliminate the core-annular regime in risers... By directly computing the mass transfer coefficients, the need to include empirical parameters could be eliminated to obtain more accurate conversion rates..."-Reza Mostofi, Ph.D., UOP, A Honeywell Company.

Book Bubbling Fluidized Bed Hydrodynamics

    Book Details:
  • Author : Martin R Dis Li
  • Publisher : Sudwestdeutscher Verlag Fur Hochschulschriften AG
  • Release : 2012-05
  • ISBN : 9783838133218
  • Pages : 372 pages

Download or read book Bubbling Fluidized Bed Hydrodynamics written by Martin R Dis Li and published by Sudwestdeutscher Verlag Fur Hochschulschriften AG. This book was released on 2012-05 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rising gas bubbles in bubbling fluidized beds are important for all hydrodynamics related phenomena, e.g. mass transfer, gas bypassing, heat transfer, gas-solids mixing, etc. However, still many interactions of bubbles with specific operation conditions in fluidized beds are unknown. In this work, fluidized beds with vertical heat exchangers are investigated. Vertical heat exchangers are in this case used to remove the heat of reaction from the exothermal methanation reaction for the production of synthetic natural gas (SNG) from wood. Several vertical tube bank configurations varying in their diameter, tube-to-tube spacing, and arrangement (square vs. triangular) have been immersed into a lab-scale fluidized bed. By means of optical probing and pressure fluctuation measurements, their influence on the rising gas bubbles has been evaluated by means of statistical tools. Findings from these experiments are furthermore used to develop a modified approach to scale up fluidized beds with vertical internals.