Download or read book Bubble Break up and Mass Transfer in Gas liquid Contactors written by James Frederic Walter and published by . This book was released on 1983 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Sparger Position on Bubble Size Distribution and Gas liquid Mass Transfer in Internal Airlift Contactors written by and published by . This book was released on 2009 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: To investigate the influence of sparger position on the bubble size distribution in internal loop airlift contactors. To complete the examination, the effects of other main design/operating parameters, i.e. the ratio between cross-sectional areas of downcomer and riser (A[subscript d]/A[subscript r]) and the superficial gas velocity, were also considered. The aeration in the ALC was achieved via the PVC ring sparger. The number of holes in the sparger was fixed at 60. The air flow rate was controlled in a range of superficial gas velocity, u[subscript sg] , from 4 to 10 cm s[superscript -1] . The ratios between cross-sectional areas were varying from 1.4 to 0.9. The sparger position was varied by changing the position of annulus sparger (0, 6 and 12 cm above the bottom of the contactor). A photographic technique was used to measure the bubble size and its distribution. The results revealed that the Sauter mean diameter of bubble was the smallest when the sparger was located at base of the reactor, and became larger when the sparger was moved to higher positions. It should be noted that at the lowest position, the sparger position was lower than the draft tube, therefore the recirculating fluid from the downcomer pushed the new-born bubbles towards the wall of the reactor and bubble breakage was observed. In addition, bubble size was also controlled by other flow conditions in the system, especially the superficial gas velocity (u[subscript sg] ), where an increase in u[subscript sg] decreased the bubble size due to the induction of high turbulence which rendered the bubble breakup. The system operated with smaller riser area had a higher level of turbulence, thus, the average bubble size was found to be smaller than system with larger riser area. At the bottom section of the reactor, the Sauter mean bubble diameter appeared to be larger than those at the middle and top sections. In terms of gas-liquid mass transfer, the sparger at its lowest position provided the highest level of overall volumetric mass transfer coefficient in the system. The specific interfacial area at the lowest sparger position was also found to be higher that other positions which suggested that this specific interfacial area could have strong positive impact on the gas-liquid mass transfer.

Download or read book Effects of Bubble Size on Mass Transfer in Two phase Nondispersing Liquid liquid Contactors Using Bubble Agitation written by Thomas Clarence Larson and published by . This book was released on 1982 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Circulation and Mass Transfer in Gas liquid Contactors written by Zenaida Otero and published by . This book was released on 1983 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modeling of Process Intensification written by Frerich J. Keil and published by John Wiley & Sons. This book was released on 2007-04-09 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining the knowledge involved in process engineering and process modeling, this is the first book to cover all modeling methods applicable to process intensification. Both the editors and authors are renowned experts from industry and academia in the various fields of process modeling and integrated chemical processes. Following an introduction to the topic, the book goes on to look at equipment and operational methods, monolithic catalysis, HEX, micro- and reverse flow reactors, catalytic and reactive distillation, the simulated-moving bed and vibration bubble column as well as ultrasound and ultrasonic reactors. A final chapter is devoted to processes under supercritical conditions. In its treatment of hot topics of multidisciplinary interest, this book is of great value to researchers and engineers alike.

Download or read book Bubble Coalescence and Mass Transfer in Air Sparged Bioreactors written by Timothy Oolman and published by . This book was released on 1984 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Developments and Applications in Solubility written by Trevor M Letcher and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solubility is fundamental to most areas of chemistry and is one of the most basic of thermodynamic properties. It underlies most industrial processes. Bringing together the latest developments and ideas, Developments and Applications in Solubility covers many varied and disparate topics. The book is a collection of work from leading experts in their fields and covers the theory of solubility, modelling and simulation, industrial applications and new data and recent developments relating to solubility. Of particular interest are sections on: experimental, calculated and predicted solubilities; solubility phenomena in 'green' quaternary mixtures involving ionic liquids; molecular simulation approaches to solubility; solubility impurities in cryogenic liquids and carbon dioxide in chemical processes. The book is a definitive and comprehensive reference to what is new in solubility and is ideal for researcher scientists, industrialists and academics

Download or read book Design of Multiphase Reactors written by Vishwas G. Pangarkar and published by John Wiley & Sons. This book was released on 2015-01-27 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: Details simple design methods for multiphase reactors in the chemical process industries Includes basic aspects of transport in multiphase reactors and the importance of relatively reliable and simple procedures for predicting mass transfer parameters Details of design and scale up aspects of several important types of multiphase reactors Examples illustrated through design methodologies presenting different reactors for reactions that are industrially important Includes simple spreadsheet packages rather than complex algorithms / programs or computational aid

Download or read book Bubble Coalescence and Break up in Air sparged Biochemical Reactors written by Michael Joseph Prince and published by . This book was released on 1989 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mass Transfer and Hydrodynamics in Stirred Gas liquid liquid Contactors written by Antonius Harold Gerrit Cents and published by . This book was released on 2003 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrodynamics and Mass Transfer in Downflow Slurry Bubble Columns written by Subrata Kumar Majumder and published by CRC Press. This book was released on 2019-01-02 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Chemical Reactor Design and Operation written by K. Roel Westerterp and published by Wiley. This book was released on 1991-01-08 with total page 800 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Reactor Design and Operation K. R. Westerterp, W. P. M. van Swaaij and A. A. C. M. Beenackers Chemical Reaction Engineering Laboratories, Twente University of Technology, Enschede, The Netherlands This is a comprehensive handbook on the design and operation of chemical reactors which are vital elements in every manufacturing process. The book offers an introduction to the modern literature and covers in depth the relevant theory of chemical reactors. The theory is illustrated by numerous worked examples typical to chemical reaction engineering practice in research, development, design and operation. The examples range from fine chemicals to large scale production and from water purification to metallurgical processes, commencing with simple homogenous model reactors and then moving to the complicated, multi-phase, heterogeneous reactors met with in reality. All the examples are based on the industrial experience of the authors. Much effort is dedicated to the behaviour of reactors in practice and to the capacity, yield and selectivity of the reactor. The book is thoroughly indexed and cross-referenced. This edition will be particularly useful to undergraduate and graduate students studying chemical reactors. Contents Fundamentals of chemical reactor calculations Model reactors: single reactions, isothermal single phase reactor calculations Model reactors: multiple reactions, isothermal single phase reactors Residence time distribution and mixing in continuous flow reactors Influence of micromixing on chemical reactions The role of the heat effect in model reactors Multi-phase reactors, single reactions Multi-phase reactors, multiple reactions Heat effects in multi-phase reactors The authors: The authors have accumulated a long experience both in fine chemicals and in the petrochemicals industry, in Europe as well as abroad. Currently they are jointly responsible for the research work in chemical reaction engineering and process development at Twente University. Several new reactor types and new processes have been developed at their institute and present research interests include gasification, fluidization and gas--liquid reactors, three-phase reactors, high-pressure technology in chemical reaction engineering, thermal behaviour of heterogeneous reactors and computer design and economic evaluation of reaction units and chemical plants.

Download or read book Mass and Heat Transfer written by T. W. Fraser Russell and published by Cambridge University Press. This book was released on 2008-02-11 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text allows instructors to teach a course on heat and mass transfer that will equip students with the pragmatic, applied skills required by the modern chemical industry. This new approach is a combined presentation of heat and mass transfer, maintaining mathematical rigor while keeping mathematical analysis to a minimum. This allows students to develop a strong conceptual understanding, and teaches them how to become proficient in engineering analysis of mass contactors and heat exchangers and the transport theory used as a basis for determining how critical coefficients depend upon physical properties and fluid motions. Students will first study the engineering analysis and design of equipment important in experiments and for the processing of material at the commercial scale. The second part of the book presents the fundamentals of transport phenomena relevant to these applications. A complete teaching package includes a comprehensive instructor's guide, exercises, case studies, and project assignments.

Download or read book Encyclopedia of Chemical Processing written by Sunggyu Lee and published by Taylor & Francis US. This book was released on 2006 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplying nearly 350 expertly-written articles on technologies that can maximize and enhance the research and production phases of current and emerging chemical manufacturing practices and techniques, this second edition provides gold standard articles on the methods, practices, products, and standards recently influencing the chemical industries. New material includes: design of key unit operations involved with chemical processes; design, unit operation, and integration of reactors and separation systems; process system peripherals such as pumps, valves, and controllers; analytical techniques and equipment; current industry practices; and pilot plant design and scale-up criteria.

Download or read book Intensification of Liquid Liquid Processes written by Laurence R. Weatherley and published by Cambridge University Press. This book was released on 2020-04-16 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore and review novel techniques for intensifying transport and reaction in liquid-liquid and related systems with this essential toolkit. Topics include discussion of the principles of process intensification, the nexus between process intensification and sustainable engineering, and the fundamentals of liquid-liquid contacting, from an expert with over forty-five years' experience in the field. Providing promising directions for investment and for new research in process intensification, in addition to a unique review of the fundamentals of the topic, this book is the perfect guide for senior undergraduate students, graduate students, developers, and research staff in chemical engineering and biochemical engineering.

Download or read book Transport Phenomena in Micro Process Engineering written by Norbert Kockmann and published by Springer Science & Business Media. This book was released on 2007-11-12 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the fundamentals of chemical engineering are presented with respect to applications in micro system technology, microfluidics, and transport processes within microstructures. Special features of the book include the state-of-the-art in micro process engineering, a detailed treatment of transport phenomena for engineers, and a design methodology from transport effects to economic considerations.

Download or read book Essentials of Fluidization Technology written by John R. Grace and published by John Wiley & Sons. This book was released on 2020-03-19 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: A concise and clear treatment of the fundamentals of fluidization, with a view to its applications in the process and energy industries.