chemical reactor modeling multiphase reactive flows

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Chemical Reactor Modeling

Author : Hugo A. Jakobsen
ISBN : 9783319050928
Genre : Technology & Engineering
File Size : 48. 87 MB
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Chemical Reactor Modeling closes the gap between Chemical Reaction Engineering and Fluid Mechanics. The second edition consists of two volumes: Volume 1: Fundamentals. Volume 2: Chemical Engineering Applications In volume 1 most of the fundamental theory is presented. A few numerical model simulation application examples are given to elucidate the link between theory and applications. In volume 2 the chemical reactor equipment to be modeled are described. Several engineering models are introduced and discussed. A survey of the frequently used numerical methods, algorithms and schemes is provided. A few practical engineering applications of the modeling tools are presented and discussed. The working principles of several experimental techniques employed in order to get data for model validation are outlined. The monograph is based on lectures regularly taught in the fourth and fifth years graduate courses in transport phenomena and chemical reactor modeling and in a post graduate course in modern reactor modeling at the Norwegian University of Science and Technology, Department of Chemical Engineering, Trondheim, Norway. The objective of the book is to present the fundamentals of the single-fluid and multi-fluid models for the analysis of single and multiphase reactive flows in chemical reactors with a chemical reactor engineering rather than mathematical bias. Organized into 13 chapters, it combines theoretical aspects and practical applications and covers some of the recent research in several areas of chemical reactor engineering. This book contains a survey of the modern literature in the field of chemical reactor modeling.

Computational Flow Modeling For Chemical Reactor Engineering

Author : Vivek V. Ranade
ISBN : 0125769601
Genre : Technology & Engineering
File Size : 21. 33 MB
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The book relates the individual aspects of chemical reactor engineering and computational flow modeling in a coherent way to explain the potential of computational flow modeling for reactor engineering research and practice.

Industrial Catalytic Processes For Fine And Specialty Chemicals

Author : Sunil S Joshi
ISBN : 9780128016701
Genre : Science
File Size : 80. 43 MB
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Industrial Catalytic Processes for Fine and Specialty Chemicals provides a comprehensive methodology and state-of-the art toolbox for industrial catalysis. The book begins by introducing the reader to the interesting, challenging, and important field of catalysis and catalytic processes. The fundamentals of catalysis and catalytic processes are fully covered before delving into the important industrial applications of catalysis and catalytic processes, with an emphasis on green and sustainable technologies. Several case studies illustrate new and sustainable ways of designing catalysts and catalytic processes. The intended audience of the book includes researchers in academia and industry, as well as chemical engineers, process development chemists, and technologists working in chemical industries and industrial research laboratories. Discusses the fundamentals of catalytic processes, catalyst preparation and characterization, and reaction engineering Outlines the homogeneous catalytic processes as they apply to specialty chemicals Introduces industrial catalysis and catalytic processes for fine chemicals Includes a number of case studies to demonstrate the various processes and methods for designing green catalysts

Clean Hydrogen Production Methods

Author : Sushant Kumar
ISBN : 9783319140872
Genre : Science
File Size : 27. 72 MB
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This brief covers novel techniques for clean hydrogen production which primarily involve sodium hydroxide as an essential ingredient to the existing major hydrogen production technologies. Interestingly, sodium hydroxide plays different roles and can act as a catalyst, reactant, promoter or even a precursor. The inclusion of sodium hydroxide makes these processes both kinetically and thermodynamically favorable. In addition possibilities to produce cleaner hydrogen, in terms of carbon emissions, are described. Through modifications of steam methane reformation methods and coal-gasification processes, from fossil as well as non-fossil energy sources, the carbon dioxide emissions of these established ways to produce hydrogen can significantly be reduced. This brief is aimed at those who are interested in expanding their knowledge on novel techniques and materials to produce clean hydrogen and capture carbon dioxide at a large-scale. The detailed thermodynamic analysis, experimental findings and critical analysis of such techniques are well discussed in this brief. Therefore, this book will be of great interest and use to students, engineers and researchers involved in developing the hydrogen economy as well as mitigating carbon dioxide emissions at a large-scale.

Control Of Higher Dimensional Pdes

Author : Thomas Meurer
ISBN : 9783642300158
Genre : Technology & Engineering
File Size : 23. 18 MB
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This monograph presents new model-based design methods for trajectory planning, feedback stabilization, state estimation, and tracking control of distributed-parameter systems governed by partial differential equations (PDEs). Flatness and backstepping techniques and their generalization to PDEs with higher-dimensional spatial domain lie at the core of this treatise. This includes the development of systematic late lumping design procedures and the deduction of semi-numerical approaches using suitable approximation methods. Theoretical developments are combined with both simulation examples and experimental results to bridge the gap between mathematical theory and control engineering practice in the rapidly evolving PDE control area. The text is divided into five parts featuring: - a literature survey of paradigms and control design methods for PDE systems - the first principle mathematical modeling of applications arising in heat and mass transfer, interconnected multi-agent systems, and piezo-actuated smart elastic structures - the generalization of flatness-based trajectory planning and feedforward control to parabolic and biharmonic PDE systems defined on general higher-dimensional domains - an extension of the backstepping approach to the feedback control and observer design for parabolic PDEs with parallelepiped domain and spatially and time varying parameters - the development of design techniques to realize exponentially stabilizing tracking control - the evaluation in simulations and experiments Control of Higher-Dimensional PDEs — Flatness and Backstepping Designs is an advanced research monograph for graduate students in applied mathematics, control theory, and related fields. The book may serve as a reference to recent developments for researchers and control engineers interested in the analysis and control of systems governed by PDEs.

Computational Methods In Science And Engineering

Author : George Maroulis
ISBN : 0735406855
Genre : Science
File Size : 68. 81 MB
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The aim of ICCMSE 2008 is to bring together computational scientists and engineers from several disciplines in order to share methods, methodologies and ideas. The potential readers are all the scientists with interest in: Computational Mathematics, Theoretical Physics, Computational Physics, Theoretical Chemistry, Computational Chemistry, Mathematical Chemistry, Computational Engineering, Computational Mechanics, Computational Biology and Medicine, Scientific Computation, High Performance Computing, Parallel and Distributed Computing, Visualization, Problem Solving Environments, Software Tools, Advanced Numerical Algorithms, Modelling and Simulation of Complex Systems, Web-based Simulation and Computing, Grid-based Simulation and Computing, Computational Grids, and Computer Science.

Mechanistic And Constrained Thermochemical Modelling In Chemical Reactor Engineering Ti Iv Chloride Oxidation Revisited

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ISBN : OCLC:1032095605
Genre :
File Size : 73. 68 MB
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Graphical abstract: Highlights: Kinetic-thermodynamic modelling of complex chemistry. Detailed kinetic model (DKM) compared with constrained Gibbs free energy minimisation (CFE). New insight for complex multi-phase reactions with fast and slow kinetics. Novel approach applicable for many complex industrial processes. Abstract: In process and materials chemistry, computational modelling of complex reactive systems has been a long-time continuing process. The methodology based on numerical methods in mechanistic reaction kinetics as well as for fluid phase thermodynamics applying equations of state is well established. During the last two decades, however, thermodynamic multiphase technology based on the minimisation of Gibbs free energy has made progress in modelling both reactive flows and processing of functional materials. Recent advancements also include introduction of such new Gibbs'ian algorithms, which facilitate calculation of time-dependent changes in reactive multi-component multi-phase systems. Comparison between detailed kinetic mechanisms (DKMs) and multiphase thermochemical techniques has yet seldom been available. The present work describes a unique comparison between constrained Gibbs free energy calculation (with one constrained kinetic reaction rate) and detailed kinetic mechanism of 67 reversible reactions between 28 species, as performed for the industrially interesting Titanium(IV) chloride oxidation process. When confined to gas phase kinetics, the calculated results show fair agreement between the two different techniques. However, comparison with observations from an experimental plug flow reactor suggests that the formation of a solid Ti-oxide phase in the models becomes a necessity. The applicability of the alternative simulation techniques in chemical reactor engineering is shortly discussed.

Separation Process Engineering

Author : Phillip C. Wankat
ISBN : 9780131382275
Genre : Technology & Engineering
File Size : 56. 57 MB
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The Definitive, Fully Updated Guide to Separation Process Engineering–Now with a Thorough Introduction to Mass Transfer Analysis Separation Process Engineering, Third Edition, is the most comprehensive, accessible guide available on modern separation processes and the fundamentals of mass transfer. Phillip C. Wankat teaches each key concept through detailed, realistic examples using real data–including up-to-date simulation practice and new spreadsheet-based exercises. Wankat thoroughly covers each of today's leading approaches, including flash, column, and batch distillation; exact calculations and shortcut methods for multicomponent distillation; staged and packed column design; absorption; stripping; and more. In this edition, he also presents the latest design methods for liquid-liquid extraction. This edition contains the most detailed coverage available of membrane separations and of sorption separations (adsorption, chromatography, and ion exchange). Updated with new techniques and references throughout, Separation Process Engineering, Third Edition, also contains more than 300 new homework problems, each tested in the author's Purdue University classes. Coverage includes Modular, up-to-date process simulation examples and homework problems, based on Aspen Plus and easily adaptable to any simulator Extensive new coverage of mass transfer and diffusion, including both Fickian and Maxwell-Stefan approaches Detailed discussions of liquid-liquid extraction, including McCabe-Thiele, triangle and computer simulation analyses; mixer-settler design; Karr columns; and related mass transfer analyses Thorough introductions to adsorption, chromatography, and ion exchange–designed to prepare students for advanced work in these areas Complete coverage of membrane separations, including gas permeation, reverse osmosis, ultrafiltration, pervaporation, and key applications A full chapter on economics and energy conservation in distillation Excel spreadsheets offering additional practice with problems in distillation, diffusion, mass transfer, and membrane separation

Chemical Reactor Design

Author : Peter Harriott
ISBN : 0203910230
Genre : Science
File Size : 82. 8 MB
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Featuring case studies and worked examples that illustrate key concepts in the text, this book contains guidelines for scaleup of laboratory and pilot plant results, methods to derive the correct reaction order, activation energy, or kinetic model from laboratory tests, and theories, correlations, and practical examples for 2- and 3-phase reaction systems, including bubble columns, slurry reactions, trickle-led reactors, and fluidized beds. A comprehensive reference, the book offers strategies to analyze and interpret kinetic data for homogeneous and heterogeneous reactions, practical design procedures, rate equations, and analytical models for improved reactor performance.

Bridging Scales In Modelling And Simulation Of Non Reacting And Reacting Flows

Author :
ISBN : 9780128150979
Genre : Technology & Engineering
File Size : 50. 33 MB
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Bridging Scales in Modelling and Simulating Reacting Flows, Part I , Volume 52 presents key methods to bridge scales in the simulation of reacting single phase flows. New sections in the updated release include topics such as quadrature-based moment methods for multiphase chemically reacting flows, the collaboration of experiments and simulations for the development of predictive models, a simulation of turbulent coalescence and breakage of bubbles and droplets in the presence of surfactants, a section on salts and contaminants, and information on the numerical simulation of reactive flows. Contains reviews by leading authorities in their respective areas Presents up-to-date reviews of the latest techniques in the modeling of catalytic processes Includes a broad mix of US and European authors, as well as academic, industrial and research institute perspectives Provides discussions on the connections between computational and experimental methods

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