The Hydrodynamic Behavior of an Inverse Liquid-solid Circulating Fluidized Bed

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Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (17 download)

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Book Synopsis The Hydrodynamic Behavior of an Inverse Liquid-solid Circulating Fluidized Bed by : Amin Jaberi

Download or read book The Hydrodynamic Behavior of an Inverse Liquid-solid Circulating Fluidized Bed written by Amin Jaberi and published by . This book was released on 2014 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work the hydrodynamic behavior of an inverse liquid-solid circulating fluidized bed (ILSCFB) system was studied. In addition, the hydrodynamic characteristic of the inverse liquid-solid fluidization under the conventional fluidization regime was also studied. The system consists of a downer with an inner column diameter of 7.6 cm and a height of 5.4 meters, an upcomer (riser) with an inner column diameter of 20 cm, a separator, and feeding and returning pipes which connect the downer and the upcomer. Based on the axial hydrodynamic behavior of the ILSCFB, it was found that the axial solids holdup in the downer is uniform. Similar to the heavy-particle LSCFB, the circulating fluidization regime in the downer was separated into the two zones including the initial circulating fluidization zone and the fully developed circulating fluidized zone as a function of the total liquid velocity in the downer. The effects of the solids inventory and the counter current flow in the upcomer on the hydrodynamics of the downer were also studied. Afterwards, the radial distribution of particles was studied in the downer of the ILSCFB. Interestingly, the radial structure of the two-phase flow was completely different from the case of the heavy-particle LSCFB. It was found that the solids holdup was greater in the center than near the wall of the downer. Finally, the conventional (non-circulating) inverse liquid-solid fluidization was studied in a column with a large diameter for the first time. The minimum fluidization velocity was obtained experimentally and compared with the Richardson and Zaki model. It was concluded that the Richardson and Zaki model can predict the bed expansion in the case of the inverse liquid-solid fluidization when the terminal velocity was calculated by the model of free rising light particles.

Study of the Hydrodynamic Behavior in an Inverse Three-phase Fluidized Bed

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Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (226 download)

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Book Synopsis Study of the Hydrodynamic Behavior in an Inverse Three-phase Fluidized Bed by : Nadim Fouad Yaacoub

Download or read book Study of the Hydrodynamic Behavior in an Inverse Three-phase Fluidized Bed written by Nadim Fouad Yaacoub and published by . This book was released on 1988 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hydrodynamic Studies in Liquid-solid and Gas-liquid-solid Circulating Fluidized Beds

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Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.:/5 (16 download)

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Book Synopsis Hydrodynamic Studies in Liquid-solid and Gas-liquid-solid Circulating Fluidized Beds by : Shaikh Abdur Razzak

Download or read book Hydrodynamic Studies in Liquid-solid and Gas-liquid-solid Circulating Fluidized Beds written by Shaikh Abdur Razzak and published by . This book was released on 2009 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Circulating Fluidized Bed Technology

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Publisher : Elsevier
ISBN 13 : 1483162168
Total Pages : 591 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Circulating Fluidized Bed Technology by : Prabir Basu

Download or read book Circulating Fluidized Bed Technology written by Prabir Basu and published by Elsevier. This book was released on 2013-10-22 with total page 591 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circulating Fluidized Bed Technology II is a result of a series of science-related conferences in the 1980s. The text contains various studies, facts, and discussions on fluidized beds. The book begins by going through the rise and fall of circulating systems, specifically fluid dynamics. The chapter continues with a wider discussion of hydrodynamics, which includes its scales, particles, and different math formulas. In the several chapters that follow, a thorough study of fluidized beds and its subtopics are presented, which include particle behavior, combustion, heat transfer process, reactors, gas mixing, parameters, measurements, and characteristics. The variations of fluidized beds, including the multisolid, dual-column, and turbulent, are also given. The book serves as a very useful reference for undergraduates and postgraduates of physics, chemistry, and other related fields.

Handbook of Fluidization and Fluid-Particle Systems

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Publisher : CRC Press
ISBN 13 : 0824748360
Total Pages : 873 pages
Book Rating : 4.8/5 (247 download)

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Book Synopsis Handbook of Fluidization and Fluid-Particle Systems by : Wen-Ching Yang

Download or read book Handbook of Fluidization and Fluid-Particle Systems written by Wen-Ching Yang and published by CRC Press. This book was released on 2003-03-19 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference details particle characterization, dynamics, manufacturing, handling, and processing for the employment of multiphase reactors, as well as procedures in reactor scale-up and design for applications in the chemical, mineral, petroleum, power, cement and pharmaceuticals industries. The authors discuss flow through fixed beds, elutriation and entrainment, gas distributor and plenum design in fluidized beds, effect of internal tubes and baffles, general approaches to reactor design, applications for gasifiers and combustors, dilute phase pneumatic conveying, and applications for chemical production and processing. This is a valuable guide for chemists and engineers to use in their day-to-day work.

Effects of Liquid Injection on Hydrodynamic Behavior in Gas-Solid Fluidized Bed Under Elevated Pressure

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (129 download)

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Book Synopsis Effects of Liquid Injection on Hydrodynamic Behavior in Gas-Solid Fluidized Bed Under Elevated Pressure by : Raymond Lau

Download or read book Effects of Liquid Injection on Hydrodynamic Behavior in Gas-Solid Fluidized Bed Under Elevated Pressure written by Raymond Lau and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Circulating Fluidized Bed Technology II

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Publisher : Pergamon
ISBN 13 : 9780080362250
Total Pages : 602 pages
Book Rating : 4.3/5 (622 download)

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Book Synopsis Circulating Fluidized Bed Technology II by : Prabir Basu

Download or read book Circulating Fluidized Bed Technology II written by Prabir Basu and published by Pergamon. This book was released on 1988 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circulating Fluidized Bed Technology II is a result of a series of science-related conferences in the 1980s. The text contains various studies, facts, and discussions on fluidized beds. The book begins by going through the rise and fall of circulating systems, specifically fluid dynamics. The chapter continues with a wider discussion of hydrodynamics, which includes its scales, particles, and different math formulas. In the several chapters that follow, a thorough study of fluidized beds and its subtopics are presented, which include particle behavior, combustion, heat transfer process, reactors, gas mixing, parameters, measurements, and characteristics. The variations of fluidized beds, including the multisolid, dual-column, and turbulent, are also given. The book serves as a very useful reference for undergraduates and postgraduates of physics, chemistry, and other related fields.

Circulating Fluidized Bed Technology II

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Author :
Publisher : Pergamon
ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Circulating Fluidized Bed Technology II by : Prabir Basu

Download or read book Circulating Fluidized Bed Technology II written by Prabir Basu and published by Pergamon. This book was released on 1988 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Circulating Fluidized Bed Technology II is a result of a series of science-related conferences in the 1980s. The text contains various studies, facts, and discussions on fluidized beds. The book begins by going through the rise and fall of circulating systems, specifically fluid dynamics. The chapter continues with a wider discussion of hydrodynamics, which includes its scales, particles, and different math formulas. In the several chapters that follow, a thorough study of fluidized beds and its subtopics are presented, which include particle behavior, combustion, heat transfer process, reactors, gas mixing, parameters, measurements, and characteristics. The variations of fluidized beds, including the multisolid, dual-column, and turbulent, are also given. The book serves as a very useful reference for undergraduates and postgraduates of physics, chemistry, and other related fields.

Hydrodynamic Characteristic of Liquid-solid and Gas-liquid-solid Fluidized Beds

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Publisher :
ISBN 13 :
Total Pages : 558 pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Hydrodynamic Characteristic of Liquid-solid and Gas-liquid-solid Fluidized Beds by : Song-Hsing Chern

Download or read book Hydrodynamic Characteristic of Liquid-solid and Gas-liquid-solid Fluidized Beds written by Song-Hsing Chern and published by . This book was released on 1982 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Circulating Fluidized Beds

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Publisher : Springer Science & Business Media
ISBN 13 : 9400900953
Total Pages : 599 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Circulating Fluidized Beds by : J.R. Grace

Download or read book Circulating Fluidized Beds written by J.R. Grace and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 599 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late 1970s there has been an explosion of industrial and academic interest in circulating fluidized beds. In part, the attention has arisen due to the environmental advantages associated with CFB (circulating . fluidized bed) combustion systems, the incorporation of riser reactors employing cir culating fluidized bed technology in petroleum refineries for fluid catalytic cracking and, to a lesser extent, the successes of CFB technology for calcina tion reactions and Fischer-Tropsch synthesis. In part, it was also the case that too much attention had been devoted to bubbling fluidized beds and it was time to move on to more complex and more advantageous regime,S of operation. Since 1980 a number of CFB processes have been commercialized. There have been five successful International Circulating Fluidized Bed Confer ences beginning in 1985, the most recent taking place in Beijing in May 1996. In addition, we have witnessed a host of other papers on CFB funda mentals and applications in journals and other archival publications. There have also been several review papers and books on specific CFB topics. However, there has been no comprehensive book reviewing the field and attempting to provide an overview of both fundamentals and applications. The purpose of this book is to fill this vacuum.

Hydrodynamic Characteristics of Liquid-solid and Gas-liquid-solid Fluidized Beds

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Publisher :
ISBN 13 :
Total Pages : 279 pages
Book Rating : 4.:/5 (379 download)

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Book Synopsis Hydrodynamic Characteristics of Liquid-solid and Gas-liquid-solid Fluidized Beds by : Song-Hsing Chern

Download or read book Hydrodynamic Characteristics of Liquid-solid and Gas-liquid-solid Fluidized Beds written by Song-Hsing Chern and published by . This book was released on 1982 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Numerical Simulation of the Hydrodynamic Behavior of a Gas-solid Fluidized Bed with and Without an Electric Field

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Publisher :
ISBN 13 :
Total Pages : 286 pages
Book Rating : 4.:/5 (398 download)

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Book Synopsis Numerical Simulation of the Hydrodynamic Behavior of a Gas-solid Fluidized Bed with and Without an Electric Field by : Forhad Md Hossain

Download or read book Numerical Simulation of the Hydrodynamic Behavior of a Gas-solid Fluidized Bed with and Without an Electric Field written by Forhad Md Hossain and published by . This book was released on 1998 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this investigation is to numerically predict the effect of an electric field on a two-dimensional gas-solid fluidized bed. The particles in the bed are taken to be of a uniform size and density forming the particulate phase with a gas (air) taken as the continuum phase. A hydrodynamic model of fluidization utilizes the principles of conservation of mass and momentum describing the multiphase flow equations along with the constitutive equations of gas-solid drag and solids stress. A two-dimensional unsteady-state computer code (K-Fix) was used to observe the effect of an electric field on the gas and solid velocities and the void fraction and pressure in the bed. Special case studies included that of a jet, a bubble, and two bubbles, with and without an electric field.

Hydrodynamic Simulation of a Gas-liquid-solid Fluidized Bed

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (466 download)

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Book Synopsis Hydrodynamic Simulation of a Gas-liquid-solid Fluidized Bed by : Diana T. Matonis

Download or read book Hydrodynamic Simulation of a Gas-liquid-solid Fluidized Bed written by Diana T. Matonis and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hydrodynamics Stydy of Conventionl (cylindrical) Fluidized Bed at Ambient Temperature

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Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (867 download)

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Book Synopsis Hydrodynamics Stydy of Conventionl (cylindrical) Fluidized Bed at Ambient Temperature by :

Download or read book Hydrodynamics Stydy of Conventionl (cylindrical) Fluidized Bed at Ambient Temperature written by and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now a days, the fluidized bed has got an vital application in the industial world . It is very much necessary to have the idea about the particle shape, type of distributor, minimum fluidization velocity, voidage, sphericity of particle etc in order to achieve the proper functioning of fluidized beds. In this present work, hydrodynamic of fluidized bed with regular particles was studied. The hydrodynamic behavior like pressure drop, minimum fluidization velocity accounting with different parameters were determined and they compared with the theoretical value. The present work is been focussed on understanding the hydrodynamic behaviour in a gas-solid two phase fluidized bed. Hematite powder of size 10 micrometer, sand particle ranging from 0.2 mm to 0.73 mm and dolomite particle from 0.03mm to 0.53mm are used as the solid phase. The fluidization operation had been carried out with air as gas phase and the hematite powder, sand and dolomite in the fluidizing cylinder . Superficial velocity of gas has been varied in the range of 0 to 0.8 m/s . The static bed heights of the solid phase in the fluidized bed used are taken from 2cm to 8.5 cm.

Hydrodynamics Study of Liquid-solid Micro-circulating Fluidised Bed

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Author :
Publisher :
ISBN 13 :
Total Pages : 196 pages
Book Rating : 4.:/5 (123 download)

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Book Synopsis Hydrodynamics Study of Liquid-solid Micro-circulating Fluidised Bed by : Orlando Lopes Do Nascimento

Download or read book Hydrodynamics Study of Liquid-solid Micro-circulating Fluidised Bed written by Orlando Lopes Do Nascimento and published by . This book was released on 2019 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Hydrodynamics of Gas-liquid-solid Fluidized and Semi-fluidized Beds

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Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (834 download)

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Book Synopsis Hydrodynamics of Gas-liquid-solid Fluidized and Semi-fluidized Beds by : Hara Mohan Jena

Download or read book Hydrodynamics of Gas-liquid-solid Fluidized and Semi-fluidized Beds written by Hara Mohan Jena and published by . This book was released on 2009 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Circulating Fluidized Beds

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Author :
Publisher : Springer
ISBN 13 : 9789401065306
Total Pages : 608 pages
Book Rating : 4.0/5 (653 download)

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Book Synopsis Circulating Fluidized Beds by : J.R. Grace

Download or read book Circulating Fluidized Beds written by J.R. Grace and published by Springer. This book was released on 2011-09-20 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late 1970s there has been an explosion of industrial and academic interest in circulating fluidized beds. In part, the attention has arisen due to the environmental advantages associated with CFB (circulating . fluidized bed) combustion systems, the incorporation of riser reactors employing cir culating fluidized bed technology in petroleum refineries for fluid catalytic cracking and, to a lesser extent, the successes of CFB technology for calcina tion reactions and Fischer-Tropsch synthesis. In part, it was also the case that too much attention had been devoted to bubbling fluidized beds and it was time to move on to more complex and more advantageous regime,S of operation. Since 1980 a number of CFB processes have been commercialized. There have been five successful International Circulating Fluidized Bed Confer ences beginning in 1985, the most recent taking place in Beijing in May 1996. In addition, we have witnessed a host of other papers on CFB funda mentals and applications in journals and other archival publications. There have also been several review papers and books on specific CFB topics. However, there has been no comprehensive book reviewing the field and attempting to provide an overview of both fundamentals and applications. The purpose of this book is to fill this vacuum.