Numerical Simulation Of Micro Mini Channel Based Methane Steam Reformer

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Numerical Simulation of Micro/Mini-Channel Based Methane-Steam Reformer

Author : Daniel Alan Peterson
Publisher :
ISBN 13 : 9781452866475
Total Pages : 128 pages
Book Rating : 4.8/5 (664 download)

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Book Synopsis Numerical Simulation of Micro/Mini-Channel Based Methane-Steam Reformer by : Daniel Alan Peterson

Download or read book Numerical Simulation of Micro/Mini-Channel Based Methane-Steam Reformer written by Daniel Alan Peterson and published by . This book was released on 2010-06-29 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical modeling of methane-steam reforming is performed in a micro/mini-channel with heat input through catalytic channel walls. The low-Mach number, variable density Navier-Stokes equations together with multicomponent reactions are solved using a parallel numerical framework. Methane-steam reforming is modeled by three reduced-order reactions occurring on the reactor walls. The surface reactions in the presence of a catalyst are modeled as Neumann boundary conditions to the governing equations. Two catalysts are investigated: a porous Nickel substrate and a porous felt with deposited Palladium nanoparticles. The reduced-order mechanism kinetics model is coupled with the flow solver to resolve the chemical species field within the reactor geometry. The effects of the total heat input, heat flux profile, flow rate and inlet steam-methane molar concentration on production of hydrogen are investigated in detail.The results of the parametric study give performance evaluations. An increase of hydrogen production of 10% (molar fraction) is observed when increasing the heat flux from no heat flux to a wall heat flux of 3 kW/m^2. The results from the three heat flux profiles study (constant, linear increasing, and linear decreasing) are increased hydrogen production between the linear decreasing profile (worst performer) and the linear increasing profile (best performer) of 3.5% on a molar basis. Varying flow rate from 800 ml/min to 100 ml/min results in an increase of hydrogen mole fraction of 16%. Hydrogen production is non-linearly related to the steam-methane ratio. Maximum hydrogen production is observed near a ratio of 3.0. The reactions are diffusion limited. The diffusion limitations may be reduced by the introduction of hydrogen extraction or mixing flow.

Numerical Simulation of Methane Combustion in a Micro-Scale Channel Under High Pressure Conditions

Author : 希以勒
Publisher :
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.:/5 (18 download)

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Book Synopsis Numerical Simulation of Methane Combustion in a Micro-Scale Channel Under High Pressure Conditions by : 希以勒

Download or read book Numerical Simulation of Methane Combustion in a Micro-Scale Channel Under High Pressure Conditions written by 希以勒 and published by . This book was released on 2018 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Simulation and Control of a Methane Steam Reformer

Author : Carolyn J. Karasiuk
Publisher :
ISBN 13 :
Total Pages : 97 pages
Book Rating : 4.:/5 (639 download)

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Book Synopsis Simulation and Control of a Methane Steam Reformer by : Carolyn J. Karasiuk

Download or read book Simulation and Control of a Methane Steam Reformer written by Carolyn J. Karasiuk and published by . This book was released on 1985 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Numerical Simulation of Time-dependent Methane Flow

Author : I. G. Ediz
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (113 download)

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Book Synopsis Numerical Simulation of Time-dependent Methane Flow by : I. G. Ediz

Download or read book Numerical Simulation of Time-dependent Methane Flow written by I. G. Ediz and published by . This book was released on 1991 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Micro Fluidization

Author : Guangwen Xu
Publisher : Elsevier
ISBN 13 : 0443187193
Total Pages : 409 pages
Book Rating : 4.4/5 (431 download)

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Book Synopsis Micro Fluidization by : Guangwen Xu

Download or read book Micro Fluidization written by Guangwen Xu and published by Elsevier. This book was released on 2023-05-20 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Micro Fluidization: Fundamentals and Applications provides background and history on micro fluidized bed research and development, summarizes and analyzes the hydrodynamic characteristics of gas-solid micro fluidized beds, and delves into areas such as research results of delayed onsets of minimum, bubbling and slugging fluidization regimes, as well as of the advanced transitions to turbulent and fast fluidization regimes. Based on these results, the wall effects – the key mechanism resulting in the unique behavior of micro fluidization – are analyzed. Other sections discuss gas and solid mixing characteristics in terms of gas residence time distribution, gas backmixing, and solids mixing. Final sections focus on presentations of the so-called micro fluidized bed reaction analyzer (MFBRA) – a powerful tool for catalyst screening, process development, optimization of reaction parameters, studies of reaction mechanism and kinetics, among many other purposes. The book describes, in detail, the MFBRA’s system design characteristics, analytic methodologies and various applications in thermochemical and catalytic reaction analysis. Includes up-to-date information (all related research results and insights) on micro fluidized beds, including how they are comprehensively summarized and analyzed Describes and explains the unique characteristics of micro fluidized beds Covers the fundamental aspects and applications related to gas-solids, liquid-solids, and gas-liquid-solids micro fluidized beds Provides up-to-date and potential applications of micro fluidized beds

Micro and Macro Mixing

Author : Henning Bockhorn
Publisher : Springer Science & Business Media
ISBN 13 : 3642045499
Total Pages : 345 pages
Book Rating : 4.6/5 (42 download)

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Book Synopsis Micro and Macro Mixing by : Henning Bockhorn

Download or read book Micro and Macro Mixing written by Henning Bockhorn and published by Springer Science & Business Media. This book was released on 2009-12-26 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The homogenization of single phase gases or liquids with chemical reactive components by mixing belongs to one of the oldest basic operations applied in chemical engineering. The mixing process is used as an essential step in nearly all processes of the chemical industry as well as the pharmaceutical and food ind- tries. Recent experimentally and theoretically based results from research work lead to a fairly good prediction of the velocity fields in differend kinds of mixers, where as predictions of simultaneously proceeding homogeneous chemical re- tions, are still not reliable in a similar way. Therefore the design of equipment for mixing processes is still derived from measurements of the so called “mixing time” which is related to the applied methods of measurement and the special - sign of the test equipment itself. The cooperation of 17 research groups was stimulated by improved modern methods for experimental research and visualization, for simulations and nume- cal calculations of mixing and chemical reactions in micro and macro scale of time and local coordinates. The research work was financed for a six years period within the recently finished Priority Program of the German Research Foundation (DFG) named “Analysis, modeling and numerical prediction of flow-mixig with and without chemical reactions (SPP 1141)”. The objective of the investigations was to improve the prediction of efficiencies and selectivities of chemical re- tions on macroscopic scale.

Microreaction Technology: Industrial Prospects

Author : W. Ehrfeld
Publisher : Springer Science & Business Media
ISBN 13 : 3642597386
Total Pages : 707 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Microreaction Technology: Industrial Prospects by : W. Ehrfeld

Download or read book Microreaction Technology: Industrial Prospects written by W. Ehrfeld and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 707 pages. Available in PDF, EPUB and Kindle. Book excerpt: Miniaturization has cost and time-saving advantages for numerous applications in chemistry, pharmacy, medicine and biotechnology. Additionally, microreaction technology offers new solutions for the automobile industry and environmental technology, e.g. fuel cells, or mobile sensor systems for on-the-spot analysis. Therefore, the 3rd International Conference on Microreaction Technology - IMRET 3 is an important forum for creating awareness of the wide variety of the new trends in this up-and-coming discipline.

Methane Conversion

Author : D.M. Bibby
Publisher : Elsevier
ISBN 13 : 0080960707
Total Pages : 759 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Methane Conversion by : D.M. Bibby

Download or read book Methane Conversion written by D.M. Bibby and published by Elsevier. This book was released on 1988-03-01 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume comprises the invited plenary lectures, contributed and poster papers presented at a symposium organised to mark the successful inauguration of the world's first commercial plant for production of gasoline from natural gas, based on the Mobil methanol-to-gasoline process. The objectives of the Symposium were to present both fundamental research and engineering aspects of the development and commercialization of gas-to-gasoline processes. These include steam reforming, methanol synthesis and methanol-to-gasoline. Possible alternative processes e.g. MOGD, Fischer-Tropsch synthesis of hydrocarbons, and the direct conversion of methane to higher hydrocarbons were also considered.The papers in this volume provide a valuable and extremely wide-ranging overview of current research into the various options for natural gas conversion, giving a detailed description of the gas-to-gasoline process and plant. Together, they represent a unique combination of fundamental surface chemistry catalyst characterization, reaction chemistry and engineering scale-up and commercialization.

Handbook of Thermal Science and Engineering

Author :
Publisher : Springer
ISBN 13 : 9783319266947
Total Pages : 0 pages
Book Rating : 4.2/5 (669 download)

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Book Synopsis Handbook of Thermal Science and Engineering by :

Download or read book Handbook of Thermal Science and Engineering written by and published by Springer. This book was released on 2018-07-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook provides researchers, faculty, design engineers in industrial R&D, and practicing engineers in the field concise treatments of advanced and more-recently established topics in thermal science and engineering, with an important emphasis on micro- and nanosystems, not covered in earlier references on applied thermal science, heat transfer or relevant aspects of mechanical/chemical engineering. Major sections address new developments in heat transfer, transport phenomena, single- and multiphase flows with energy transfer, thermal-bioengineering, thermal radiation, combined mode heat transfer, coupled heat and mass transfer, and energy systems. Energy transport at the macro-scale and micro/nano-scales is also included. The internationally recognized team of authors adopt a consistent and systematic approach and writing style, including ample cross reference among topics, offering readers a user-friendly knowledgebase greater than the sum of its parts, perfect for frequent consultation. The Handbook of Thermal Science and Engineering is ideal for academic and professional readers in the traditional and emerging areas of mechanical engineering, chemical engineering, aerospace engineering, bioengineering, electronics fabrication, energy, and manufacturing concerned with the influence thermal phenomena.

Microreaction Technology

Author : M. Matlosz
Publisher : Springer Science & Business Media
ISBN 13 : 3642567630
Total Pages : 584 pages
Book Rating : 4.6/5 (425 download)

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Book Synopsis Microreaction Technology by : M. Matlosz

Download or read book Microreaction Technology written by M. Matlosz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: IMRET 5 featured more than 80 oral and poster communications, covering the entire interdisciplinary field from design, production, modeling and characterization of microreactor devices to application of microstructured systems for production, energy and transportation, including many analytical and biological applications. A particularly strong topic was the investigation of the potential of microstructuring of reactors and systems components for process intensification. Perspectives of combining local, in situ, data acquisition with appropriate microstructuring of actuators and components within chemical and biological devices were explored in order to enhance process performance and facilitate process control.

Classical And Quantum Dynamics In Condensed Phase Simulations: Proceedings Of The International School Of Physics

Author : Bruce J Berne
Publisher : World Scientific
ISBN 13 : 9814496057
Total Pages : 881 pages
Book Rating : 4.8/5 (144 download)

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Book Synopsis Classical And Quantum Dynamics In Condensed Phase Simulations: Proceedings Of The International School Of Physics by : Bruce J Berne

Download or read book Classical And Quantum Dynamics In Condensed Phase Simulations: Proceedings Of The International School Of Physics written by Bruce J Berne and published by World Scientific. This book was released on 1998-06-17 with total page 881 pages. Available in PDF, EPUB and Kindle. Book excerpt: The school held at Villa Marigola, Lerici, Italy, in July 1997 was very much an educational experiment aimed not just at teaching a new generation of students the latest developments in computer simulation methods and theory, but also at bringing together researchers from the condensed matter computer simulation community, the biophysical chemistry community and the quantum dynamics community to confront the shared problem: the development of methods to treat the dynamics of quantum condensed phase systems.This volume collects the lectures delivered there. Due to the focus of the school, the contributions divide along natural lines into two broad groups: (1) the most sophisticated forms of the art of computer simulation, including biased phase space sampling schemes, methods which address the multiplicity of time scales in condensed phase problems, and static equilibrium methods for treating quantum systems; (2) the contributions on quantum dynamics, including methods for mixing quantum and classical dynamics in condensed phase simulations and methods capable of treating all degrees of freedom quantum-mechanically.

Hydrogen Production Technologies

Author : Mehmet Sankir
Publisher : John Wiley & Sons
ISBN 13 : 1119283655
Total Pages : 653 pages
Book Rating : 4.1/5 (192 download)

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Book Synopsis Hydrogen Production Technologies by : Mehmet Sankir

Download or read book Hydrogen Production Technologies written by Mehmet Sankir and published by John Wiley & Sons. This book was released on 2017-03-20 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive practical review of the new technologies used to obtain hydrogen more efficiently via catalytic, electrochemical, bio- and photohydrogen production. Hydrogen has been gaining more attention in both transportation and stationary power applications. Fuel cell-powered cars are on the roads and the automotive industry is demanding feasible and efficient technologies to produce hydrogen. The principles and methods described herein lead to reasonable mitigation of the great majority of problems associated with hydrogen production technologies. The chapters in this book are written by distinguished authors who have extensive experience in their fields, and readers will have a chance to compare the fundamental production techniques and learn about the pros and cons of these technologies. The book is organized into three parts. Part I shows the catalytic and electrochemical principles involved in hydrogen production technologies. Part II addresses hydrogen production from electrochemically active bacteria (EAB) by decomposing organic compound into hydrogen in microbial electrolysis cells (MECs). The final part of the book is concerned with photohydrogen generation. Recent developments in the area of semiconductor-based nanomaterials, specifically semiconductor oxides, nitrides and metal free semiconductor-based nanomaterials for photocatalytic hydrogen production are extensively discussed.

Science Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 1360 pages
Book Rating : 4.3/5 (243 download)

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Book Synopsis Science Abstracts by :

Download or read book Science Abstracts written by and published by . This book was released on 1995 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Chemical Engineering Design

Author : Gavin Towler
Publisher : Elsevier
ISBN 13 : 0080966608
Total Pages : 1321 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Chemical Engineering Design by : Gavin Towler

Download or read book Chemical Engineering Design written by Gavin Towler and published by Elsevier. This book was released on 2012-01-25 with total page 1321 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Engineering Design, Second Edition, deals with the application of chemical engineering principles to the design of chemical processes and equipment. Revised throughout, this edition has been specifically developed for the U.S. market. It provides the latest US codes and standards, including API, ASME and ISA design codes and ANSI standards. It contains new discussions of conceptual plant design, flowsheet development, and revamp design; extended coverage of capital cost estimation, process costing, and economics; and new chapters on equipment selection, reactor design, and solids handling processes. A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data, and Excel spreadsheet calculations, plus over 150 Patent References for downloading from the companion website. Extensive instructor resources, including 1170 lecture slides and a fully worked solutions manual are available to adopting instructors. This text is designed for chemical and biochemical engineering students (senior undergraduate year, plus appropriate for capstone design courses where taken, plus graduates) and lecturers/tutors, and professionals in industry (chemical process, biochemical, pharmaceutical, petrochemical sectors). New to this edition: Revised organization into Part I: Process Design, and Part II: Plant Design. The broad themes of Part I are flowsheet development, economic analysis, safety and environmental impact and optimization. Part II contains chapters on equipment design and selection that can be used as supplements to a lecture course or as essential references for students or practicing engineers working on design projects. New discussion of conceptual plant design, flowsheet development and revamp design Significantly increased coverage of capital cost estimation, process costing and economics New chapters on equipment selection, reactor design and solids handling processes New sections on fermentation, adsorption, membrane separations, ion exchange and chromatography Increased coverage of batch processing, food, pharmaceutical and biological processes All equipment chapters in Part II revised and updated with current information Updated throughout for latest US codes and standards, including API, ASME and ISA design codes and ANSI standards Additional worked examples and homework problems The most complete and up to date coverage of equipment selection 108 realistic commercial design projects from diverse industries A rigorous pedagogy assists learning, with detailed worked examples, end of chapter exercises, plus supporting data and Excel spreadsheet calculations plus over 150 Patent References, for downloading from the companion website Extensive instructor resources: 1170 lecture slides plus fully worked solutions manual available to adopting instructors

Oil and Gas Production Handbook: An Introduction to Oil and Gas Production

Author : Havard Devold
Publisher : Lulu.com
ISBN 13 : 1105538648
Total Pages : 84 pages
Book Rating : 4.1/5 (55 download)

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Book Synopsis Oil and Gas Production Handbook: An Introduction to Oil and Gas Production by : Havard Devold

Download or read book Oil and Gas Production Handbook: An Introduction to Oil and Gas Production written by Havard Devold and published by Lulu.com. This book was released on 2013 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Membrane Reactors for Hydrogen Production Processes

Author : Marcello De Falco
Publisher : Springer Science & Business Media
ISBN 13 : 0857291513
Total Pages : 244 pages
Book Rating : 4.8/5 (572 download)

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Book Synopsis Membrane Reactors for Hydrogen Production Processes by : Marcello De Falco

Download or read book Membrane Reactors for Hydrogen Production Processes written by Marcello De Falco and published by Springer Science & Business Media. This book was released on 2011-03-25 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Membrane Reactors for Hydrogen Production Processes deals with technological and economic aspects of hydrogen selective membranes application in hydrogen production chemical processes. Membrane Reactors for Hydrogen Production Processes starts with an overview of membrane integration in the chemical reaction environment, formulating the thermodynamics and kinetics of membrane reactors and assessing the performance of different process architectures. Then, the state of the art of hydrogen selective membranes, membrane manufacturing processes and the mathematical modeling of membrane reactors are discussed. A review of the most useful applications from an industrial point of view is given. These applications include: natural gas steam reforming, autothermal reforming, water gas shift reaction, decomposition of hydrogen sulphide, and alkanes dehydrogenation. The final part is dedicated to the description of a pilot plant where the novel configuration was implemented at a semi-industrial scale. Plant engineers, researchers and postgraduate students will find Membrane Reactors for Hydrogen Production Processes a comprehensive guide to the state of the art of membrane reactor technology.

Fuel Cell Engineering

Author :
Publisher : Academic Press
ISBN 13 : 0123868750
Total Pages : 481 pages
Book Rating : 4.1/5 (238 download)

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Book Synopsis Fuel Cell Engineering by :

Download or read book Fuel Cell Engineering written by and published by Academic Press. This book was released on 2012-08-14 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel cells are attractive electrochemical energy converters featuring potentially very high thermodynamic efficiency factors. The focus of this volume of Advances in Chemical Engineering is on quantitative approaches, particularly based on chemical engineering principles, to analyze, control and optimize the steady state and dynamic behavior of low and high temperature fuel cells (PEMFC, DMFC, SOFC) to be applied in mobile and stationary systems. Updates and informs the reader on the latest research findings using original reviews Written by leading industry experts and scholars Reviews and analyzes developments in the field