Design of Multiphase Reactors

Design of Multiphase Reactors features: Basic aspects of transport in multiphase reactors and the importance of relatively reliable and simple procedures for predicting mass transfer parameters Design and scale up aspects of several ...

Design of Multiphase Reactors

Author: Vishwas G. Pangarkar

Publisher: John Wiley & Sons

ISBN: 1118807561

Page: 536

View: 833

"This resource offers a primer on simple design methods for multiphase reactors in the chemical process industries, particularly the fine chemicals industry. It provides the process design engineer with simple yet theoretically sound procedures. Different types of multiphase reactors are dealt with on an individual basis. The book focuses on the problem of predicting mass transfer rates in these reactors. It also contains finally worked examples that clearly illustrate how a highly complex MPR like the Stirred Tank Reactor (STR) can be designed using simple correlations which need only a scientific calculator"--

Multiphase Bioreactor Design

Khare, A.S. and Joshi, J.B. (1990) Effect of fine particles on gas holdup in threephase sparged reactors. Chem. Eng.J. 44, 11–25. Kratochvíl, J., Winkler ...

Multiphase Bioreactor Design

Author: Joaquim M.S. Cabral

Publisher: CRC Press

ISBN: 1134485484

Page: 516

View: 584

Bioreaction engineering is fundamental to the optimization of biotechnological processes and the production of biochemicals by enzymes, microbial, plant and animal cells and higher organisms. A reference text for postgraduate students and researchers in biochemical engineering and bioreactor design, Multiphase Bioreactor Design describes the

Essentials of Fluidization Technology

2 Nigam, K.D. and Schumpe, A. (1996). Three-Phase Sparged Reactors. Netherlands: Gordon and Breach Publishers. 3 Dudukovic, M.P., Larachi, F., and Mills, ...

Essentials of Fluidization Technology

Author: John R. Grace

Publisher: John Wiley & Sons

ISBN: 3527699473

Page: 632

View: 998

A concise and clear treatment of the fundamentals of fluidization, with a view to its applications in the process and energy industries.

Handbook of Fluidization and Fluid Particle Systems

Three-Phase Sparged Reactors. Gordon and Breach, 1996, pp 339-386, 679-739. Milne-Thomson LM. Theoretical Hydrodynamics. 3d ed. London: Macmillan, 1955.

Handbook of Fluidization and Fluid Particle Systems

Author: Wen-Ching Yang

Publisher: CRC Press

ISBN: 0203912748

Page: 1868

View: 831

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, elutriati

Composition Modulation of Catalytic Reactors


Composition Modulation of Catalytic Reactors

Author: P L Silverton

Publisher: CRC Press

ISBN: 9789056991067

Page: 624

View: 721

Composition modulation is a method of operating a catalytic reactor to improve catalyst activity or selectivity and has been under study for more than 25 years. In the last few years, several commercial applications have been realized and more will certainly appear. A large international research literature now exists. This book examines this literature and attempts to organize and analyze it with the intent of identifying the magnitude of improvements possible, why modulation is effective, and what questions remain unanswered. Topics include hydrogenation, oxidation, reduction, and polymerization reactions for NOX, SOX, NH3, and hydrocarbons.

Dynamic Modelling Bifurcation and Chaotic Behaviour of Gas Solid Catalytic Reactors

... Kaguei Volume 2 THREE - PHASE CATALYTIC REACTORS by P.A. Ramachandran and ... Elshishini Volume 8 THREE - PHASE SPARGED REACTORS edited by K.D.P. Nigam ...

Dynamic Modelling  Bifurcation and Chaotic Behaviour of Gas Solid Catalytic Reactors

Author: S. S. E. H. Elnashaie

Publisher: CRC Press

ISBN: 9782884490788

Page: 656

View: 300

The discovery of chaos has considerably widened the scope of our knowledge regarding the dynamics of physical systems. Gas-solid catalytic reactors are important units in the petrochemical and petroleum refining industries and in the field of environmental protection. The knowledge required to understand and analyse the bifurcation, dynamics and chaotic behaviour of these reactors is widespread among many disciplines including chemical reaction, engineering, chemistry, physics and pure and applied mathematics. This book is the first to consolidate the progress in understanding the complex dynamics of catalytic reactors. It covers the most important aspects of the problem, which includes the formulation of the dynamic models for these systems, the basic dynamic, bifurcation and chaotic characteristics of the different types and configurations of these units, the industrial relevance of these complex dynamic phenomena, as well as the mathematical tools necessary for the detailed analysis of these complex dynamics. This book is easy to read, and will therefore appeal to a wide spectrum of chemical engineering students and chemical engineers in academia and in industry, also students and researchers from other disciplines who are interested in the rich and fascinating complex dynamic characteristics of gas-solid catalytic reactors, will find it both interesting and useful.

Coulson and Richardson s Chemical Engineering

9.4.2 Hydrodynamics of Gas–Liquid–Solid Fluidised Beds Three phase sparged reactors show hydrodynamic behaviour similar to gas–liquid bubble columns.

Coulson and Richardson   s Chemical Engineering

Author: R. P. Chhabra

Publisher: Butterworth-Heinemann

ISBN: 0081012209

Page: 871

View: 832

Coulson and Richardson's Chemical Engineering: Volume 2A: Particulate Systems and Particle Technology, Sixth Edition, has been fully revised and updated to provide practitioners with an overview of chemical engineering, including clear explanations of theory and thorough coverage of practical applications, all supported by case studies. A worldwide team of contributors has pooled their experience to revise old content and add new content. The content has been updated to be more useful to practicing engineers. This complete reference to chemical engineering will support you throughout your career, as it covers every key chemical engineering topic. Fluid Flow, Heat Transfer and Mass Transfer has been developed from the series’ volume 1, 6th edition. This volume covers the three main transport process of interest to chemical engineers: momentum transfer (fluid flow), heat transfer and mass transfer and the relationships between them. Particulate Systems and Particle Technology has been developed from the series’ volume 2, 5th edition. This volume covers the properties of particulate systems, including the character of individual particles and their behavior in fluids. Sedimentation of particles, both singly and at high concentrations, flow in packed and fluidized beads and filtration are then examined. Separation Processes has been developed from the series’ volume 2, 5th edition. This volume covers distillation and gas absorption, which illustrate applications of the fundamental principles of mass transfer. Several techniques—adsorption, ion exchange, chromatographic and membrane separations, and process intensification—are described. Chemical and Biochemical Reactors and Reaction Engineering has been developed from the series’ volume 3, 3rd edition. Features fully revised reference material converted from textbooks Covers foundational to technical topics Features emerging applications, numerical methods and computational tools

Multiphase Reactor Engineering for Clean and Low Carbon Energy Applications

Khare A.S. Joshi J.B. Effect of fine particles on gas holdup in threephase sparged reactors. Chemical Engineering Journal, 1990, 44(1): 11–25.

Multiphase Reactor Engineering for Clean and Low Carbon Energy Applications

Author: Yi Cheng

Publisher: John Wiley & Sons

ISBN: 1118454693

Page: 432

View: 769

Provides a comprehensive review on the brand-new development of several multiphase reactor techniques applied in energy-related processes Explains the fundamentals of multiphase reactors as well as the sophisticated applications Helps the reader to understand the key problems and solutions of clean coal conversion techniques Details the emerging processes for novel refining technology, clean coal conversion techniques, low-cost hydrogen productions and CO2 capture and storage Introduces current energy-related processes and links the basic principles of emerging processes to the features of multiphase reactors providing an overview of energy conversion in combination with multiphase reactor engineering Includes case studies of novel reactors to illustrate the special features of these reactors

Chemical Engineering and Chemical Process Technology Volume III

Gas-liquid-solid reactors: K. D. P. Nigam and A. Schumpe, (1996) “Three-Phase Sparged Reactors”, 744 pp, Gordon and Breach Sci.

Chemical Engineering and Chemical Process Technology   Volume III

Author: Ryzhard Pohorecki

Publisher: EOLSS Publications

ISBN: 1848263988

Page: 338

View: 736

Chemical Engineering and Chemical Process Technology is a theme component of Encyclopedia of Chemical Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty Encyclopedias. Chemical engineering is a branch of engineering, dealing with processes in which materials undergo changes in their physical or chemical state. These changes may concern size, energy content, composition and/or other application properties. Chemical engineering deals with many processes belonging to chemical industry or related industries (petrochemical, metallurgical, food, pharmaceutical, fine chemicals, coatings and colors, renewable raw materials, biotechnological, etc.), and finds application in manufacturing of such products as acids, alkalis, salts, fuels, fertilizers, crop protection agents, ceramics, glass, paper, colors, dyestuffs, plastics, cosmetics, vitamins and many others. It also plays significant role in environmental protection, biotechnology, nanotechnology, energy production and sustainable economical development. The Theme on Chemical Engineering and Chemical Process Technology deals, in five volumes and covers several topics such as: Fundamentals of Chemical Engineering; Unit Operations – Fluids; Unit Operations – Solids; Chemical Reaction Engineering; Process Development, Modeling, Optimization and Control; Process Management; The Future of Chemical Engineering; Chemical Engineering Education; Main Products, which are then expanded into multiple subtopics, each as a chapter. These five volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.

Scale up Methodology for Chemical Processes

... liquid mass transfer in three phase sparged reactor , The Canad . J. of Chem . Eng . , aug . 1988 , Vol . 66 , p . 572-578 .

Scale up Methodology for Chemical Processes

Author: Jean-Paul Euzen

Publisher: Editions TECHNIP

ISBN: 9782710806462

Page: 240

View: 253

Having gained considerable experience in process development at the Institut FranCais du PEtrole, the authors present a design framework, a review of the available means of investigation, and several examples illustrating their methodology of industrial process scale up. The salient feature of the book is the fact that it addresses a subject which is vital in view of its economic repercussions, yet relatively unknown in technical and scientific circles, due to the confidentiality surrounding it.Contents: 1. Main guidelines of the methodology. 2. Various types of model. 3. Pilot plants and mock-ups. 4. Experimental techniques. 5. Applications to industrial process development. 6. Conclusions. References. Index.

Hydrodynamics and Mass Transfer in Downflow Slurry Bubble Columns

Clark, K. N. The Effect of High Pressure and Temperature on Phase Distributions ... A Gas Density Effect on Mass Transfer in Three-Phase Sparged Reactors.

Hydrodynamics and Mass Transfer in Downflow Slurry Bubble Columns

Author: Subrata Kumar Majumder

Publisher: CRC Press

ISBN: 1351249843

Page: 244

View: 971

Slurry bubble column reactors are intensively used as a multiphase reactor in the chemical, biochemical, and petrochemical industries for carrying out reactions and mass transfer operations in which a gas, made up of one or several reactive components, comes into contact or reacts with a liquid. This volume describes the hydrodynamics of three-phase gas-liquid-solid flow in a downflow slurry bubble column. The efficiency of the downflow gas interacting system is characterized by the self-entrainment of secondary gas. The book covers the gas entrainment phenomena, gas holdup characteristics, pressure drop, gasliquid mixing characteristics, bubble size distribution, interfacial phenomena, and the mass transfer phenomena in the downflow slurry system. This volume will be useful in chemical and biochemical industries and in industrial research and development sectors, as well as in advanced education courses in this area. The book will be helpful for further understanding the multiphase behavior in gas interacting multiphase systems for research and development. The hydrodynamic and mass transfer characteristics discussed will be useful in the design and installation of the modified slurry bubble column in industry for specific applications.

High Pressure Process Technology Fundamentals and Applications

Three-Phase Sparged Reactors, Amsterdam, Gordon and Breach Sci. Publ., 1996. P.A. Ramachandran, and R.V. Chaudari, Three-Phase Catalytic Reactors, ...

High Pressure Process Technology  Fundamentals and Applications

Author: A. Bertucco

Publisher: Elsevier

ISBN: 9780080533940

Page: 684

View: 958

Clear evidence of increasing demands in the processing industry prompted the editors and authors to publish a new book about High Pressure Process Technology: Fundamentals and Applications. This book presents the latest knowledge regarding the high pressure processing aspects combined with that about the modeling, the design and the operation of safe and reliable high pressure plants and equipment. This treatment and selection of the subjects is stimulating and unique. Consisting of nine chapters, each subdivided into several sections, the book addresses the high pressure aspects, providing well selected correlated information connected with a comprehensive overview together with a large number of references. The main body of the first eight chapters refers to subjects like high pressure in general, the thermodynamics and kinetics of the fluids involved, the design of high pressure equipment, the modeling and design of reactors, separation and fractionation units, the safety aspects, the control and economics. In the extended last chapter, examples of promising high pressure applications are explained, such as chemical and enzymatic reactions in supercritical solvents, hydrogenation under supercritical conditions, supercritical water oxidation, polymerization with metallocene catalysts, supercritical extraction, fractionation and precipitation, supercritical pharma processing, ultra-high pressure sterilization and supercritical dry-cleaning.

Chemical Reactor Design and Technology

Overview of the New Developments of Energy and Petrochemical Reactor ... The three phase sparged slurry reactor is in fact the most simple slurry reactor.

Chemical Reactor Design and Technology

Author: Hugo de Lasa

Publisher: Springer Science & Business Media

ISBN: 9400944004

Page: 838

View: 218

Today's frustrations and anxieties resulting from two energy crises in only one decade, show us the problems and fragility of a world built on high energy consumption, accustomed to the use of cheap non-renewable energy and to the acceptance of eXisting imbalances between the resources and demands of countries. Despite all these stressing factors, our world is still hesitatins about the urgency of undertaking new and decisive research that could stabilize our future, Could this trend change in the near future? In our view, two different scenarios are possible. A renewed energy tension could take place with an unpredictable timing mostly related to political and economic factors, This could bring again scientists and technologists to a new state of shock and awaken our talents, A second interesting and beneficial scenario could result from the positive influence of a new generation of researchers that with or without immediate crisis, acting both in industry and academia, will face the challenge of developing technologies and processes to pave the way to a less vulnerable society, Because Chemical Reactor Design and Technology activities are at the heart of these required new technologies the timeliness of the NATO-Advanced Study Institute at the University of Western Ontario, London, was very appropriate.

Hydrodynamics Mass and Heat Transfer in Chemical Engineering

... University of Salford, UK Volume 1 Volume 2 Volume 3 Volume 4 Volume 5 ... and S.S. Elshishini THREE-PHASE SPARGED REACTORS edited by K.D.P. Nigam and ...

Hydrodynamics  Mass and Heat Transfer in Chemical Engineering

Author: Andrei D. Polyanin

Publisher: CRC Press

ISBN: 1420024515

Page: 408

View: 444

Hydrodynamics, Mass and Heat Transfer in Chemical Engineering contains a concise and systematic exposition of fundamental problems of hydrodynamics, heat and mass transfer, and physicochemical hydrodynamics, which constitute the theoretical basis of chemical engineering in science. Areas covered include: fluid flows; processes of chemical engineering; mass and heat transfer in plane channels, tubes and fluid films; problems of mass and heat transfer; the motion and mass exchange of power-law and viscoplastic fluids through tubes, channels, and films; and the basic concepts and properties of very specific technological media, namely foam systems. Topics are arranged in increasing order of difficulty, with each section beginning with a brief physical and mathematical statement of the problem considered, followed by final results, usually given for the desired variables in the form of final relationships and tables.

Liquid and Vapour Flows in Porous Bodies

... University of Salford, UK Volume 1 Volume 2 Volume 3 Volume 4 Volume 5 ... and S.S. Elshishini THREE-PHASE SPARGED REACTORS edited by K.D.P. Nigam and ...

Liquid and Vapour Flows in Porous Bodies

Author: N.V. Churaev

Publisher: Routledge

ISBN: 1351434985

Page: 338

View: 689

Adopts a completely original approach to the study of processes of mass transfer. In contrast to the usual approach, based on the concept of continuum media and the theory of heat and mass transfer, the topic is considered from a new viewpoint, taking into account the heterogeneous dispersal state of porous bodies. The author bases his discussion on the theory of surface forces and microhydrodynamic analysis of the processes of mass transport of gases, liquids and vapors, providing the reader with a systematic account of liquid/solid and gas/solid interfaces. Topics treated in this book include structural peculiarities, equilibrium and properties of liquids in porous bodies. Various mechanisms of mass transfer are considered, including liquid flow in pores and films, gas diffusion, combined transfer of liquid and vapor, convective diffusion in solutions, structure formation, capillary phenomena, and wetting. This unique book provides a wealth of information from the former Soviet Union, which will be of great interest to chemists, physicists and materials scientists, as well as industrialists working with a variety of different products in which disperse systems and porous bodies are important.