05158nam 2200601 a 450 991087753840332120200520144314.01-282-68781-697866126878153-527-62972-63-527-62973-4(CKB)2670000000014584(EBL)513902(OCoLC)609862155(SSID)ssj0000363085(PQKBManifestationID)11267707(PQKBTitleCode)TC0000363085(PQKBWorkID)10381555(PQKB)11196256(MiAaPQ)EBC513902(EXLCZ)99267000000001458420100601d2010 uy 0engur|n|---|||||txtccrMembrane reactors distributing reactants to improve selectivity and yield /edited by Andreas Seidel-MorgensternWeinheim Wiley-VCH Verlag GmbH & Co.20101 online resource (294 p.)Description based upon print version of record.3-527-32039-3 Includes bibliographical references and index.Membrane Reactors: Distributing Reactants to Improve Selectivity and Yield; Contents; Preface; List of Contributors; 1: Basic Problems of Chemical Reaction Engineering and Potential of Membrane Reactors; 1.1 Challenges in Chemical Reaction Engineering; 1.2 Concepts of Membrane Reactors; 1.3 Available Membranes; 1.4 Illustration of the Selectivity Problem; 1.5 Reaction Rate, Conversion, Selectivity and Yield; 1.5.1 Reaction Rates; 1.5.2 Conversion; 1.5.3 Mass Balance of a Plug Flow Tubular Reactor; 1.5.4 Selectivity and Yield; 1.6 Distributed Dosing in Packed-Bed and Membrane Reactors1.6.1 Adjusting Local Concentrations to Enhance Selectivities1.6.2 Optimization of Dosing Profiles; 1.7 Kinetic Compatibility in Membrane Reactors; 1.8 Current Status of Membrane Reactors of the Distributor Type; Notation used in this Chapter; Greek Symbols; Superscripts and Subscripts; Abbreviations; References; 2: Modeling of Membrane Reactors; 2.1 Introduction; 2.2 Momentum, Mass and Heat Balances; 2.3 Transport Kinetics; 2.3.1 Fluid-Filled Regions; 2.3.1.1 Molecular Transport of Momentum; 2.3.1.2 Heat Conduction; 2.3.1.3 Molecular Diffusion; 2.3.2 Porous Domains2.3.2.1 Molecular Diffusion2.3.2.2 K nudsen Diffusion; 2.3.2.3 Viscous Flow; 2.3.2.4 Models for Description of Gas Phase Transport in Porous Media; 2.4 Reduced Models; 2.5 Solvability, Discretization Methods and Fast Solution; 2.6 Implementation in FLUENT, MooNMD, COMSOL and ProM oT; 2.6.1 Application of FLUENT; 2.6.2 Application of MooNMD; 2.6.3 Application of ProM oT; 2.7 Conclusion; Notation used in this Chapter; Latin Notation; Greek Notation; Super- and Subscripts; References; 3: Catalysis and Reaction Kinetics of a Model Reaction; 3.1 Introduction3.2 The Reaction Network of the Oxidative Dehydrogenation of Ethane3.3 Catalysts and Structure-Activity Relations; 3.3.1 Catalyst Preparation and Characterization; 3.3.2 Mechanistic Aspects: Correlation Between Structure and Activity; 3.4 Derivation of a Kinetic Model; 3.4.1 Experimental; 3.4.1.1 Catalyst; 3.4.1.2 Set-Up; 3.4.1.3 Procedures; 3.4.2 Qualitative Trends; 3.4.2.1 Overall Catalyst Performance; 3.4.2.2 Evaluation of Intraparticle Mass Transfer Limitations; 3.4.3 Quantitative Evaluation; 3.4.3.1 Simplified Reactor Model and Data Analysis; 3.4.3.2 Kinetic Models3.4.3.3 Parameter Estimation3.4.4 Suggested Simplified Model; Special Notation not Mentioned in Chapter 2; Latin Notation; Greek Notation; References; 4: Transport Phenomena in Porous Membranes and Membrane Reactors; 4.1 Introduction; 4.2 Aspects of Discretizing Convection-Diffusion Equations; 4.3 Velocity Fields in Membrane Reactors; 4.4 Determination of Transport Coefficients and Validation of Models; 4.4.1 Mass Transport Parameters of Multilayer Ceramic Membranes-Precursors Available; 4.4.1.1 Task and Tools; 4.4.1.2 Identification by Single Gas Permeation4.4.1.3 Validation by Isobaric Diffusion and by Transient DiffusionThis authoritative work represents a broad treatment of the field, including the basic principles of membrane reactors, a comparative study of these and conventional fixed-bed reactors or multi-tube reactors, modeling, industrial applications, and emerging applications -- all based on case studies and model reactions with a stringent mathematical framework. The significant progress made over the last few years in this inherently hot multidisciplinary field is summarized in a competent manner, such that the novice can grasp the elementary concepts, while professionals can familiarize themseMembrane reactorsBioreactorsMembrane reactors.Bioreactors.660.2832Seidel-Morgenstern Andreas1751193MiAaPQMiAaPQMiAaPQBOOK9910877538403321Membrane reactors4186057UNINA