Rapid Screening of Carbon Formation on Steam Reforming Catalysts PDF Download

Author: Urs Fitzi
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 234

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Book Description

Author: Bruno Lecerf
Publisher:
ISBN:
Category : Catalytic reforming
Languages : en
Pages : 186

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Book Description

Author: Jose Luis Cabral Da Conceicao Figueiredo
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: Jens R. Rostrup-Nielsen
Publisher:
ISBN:
Category : Catalysts
Languages : en
Pages : 244

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Book Description

Author: Elaine Marie Opara
Publisher:
ISBN:
Category : Carbon
Languages : en
Pages : 243

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Book Description

Author: E.G. Derouane
Publisher: Springer Science & Business Media
ISBN: 9401143293
Category : Science
Languages : en
Pages : 497

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Book Description
Catalysts are central in modern industrial chemistry and there is an urgent need to develop new catalysts. Such a rapid pace of development brings with it a new set of challenges at all levels of research, from synthesis and characterization to testing and modelling. This book reviews the current status of combinatorial catalysis, scientific catalyst design techniques, methods for preparing inorganic combinatorial libraries, experimental design methods, data processing, system modelling an simulation, and catalyst testing. The individual contributions reveal the development of high throughput catalyst design and test methods and identify the main challenges in the field, including new catalyst preparation techniques, rapid performance evaluation, and new microreactor configurations. Readership: All those working in catalytic process analysis and development. The extensive review of catalysis principles is especially relevant for postgraduate students seeking to pursue studies in catalysis.

Author: Dushyant Shekhawat
Publisher: Elsevier
ISBN: 0444535640
Category : Technology & Engineering
Languages : en
Pages : 569

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Book Description
Fuel Cells: Technologies for Fuel Processing provides an overview of the most important aspects of fuel reforming to the generally interested reader, researcher, technologist, teacher, student, or engineer. The topics covered include all aspects of fuel reforming: fundamental chemistry, different modes of reforming, catalysts, catalyst deactivation, fuel desulfurization, reaction engineering, novel reforming concepts, thermodynamics, heat and mass transfer issues, system design, and recent research and development. While no attempt is made to describe the fuel cell itself, there is sufficient description of the fuel cell to show how it affects the fuel reformer. By focusing on the fundamentals, this book aims to be a source of information now and in the future. By avoiding time-sensitive information/analysis (e.g., economics) it serves as a single source of information for scientists and engineers in fuel processing technology. The material is presented in such a way that this book will serve as a reference for graduate level courses, fuel cell developers, and fuel cell researchers. - Chapters written by experts in each area - Extensive bibliography supporting each chapter - Detailed index - Up-to-date diagrams and full colour illustrations

Author: Xiao Zhang (Ph.D.)
Publisher:
ISBN:
Category : Chemical reactors
Languages : en
Pages : 100

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Book Description
Over the decades, seeking for an alternative energy source has been more and more significant because of increasing demand with rapid industry expansion. Liquid hydrocarbon from Fischer-Tropsch process is considered as an alternative fuel source because the product is considered as subtle for petroleum-derived. Syngas as feedstock for F-T process plays a crucial role in liquid hydrocarbon production. Among several commercial and experiment technologies, the most common technology for syngas production is natural gas reforming. The product from reforming process has proper carbon monoxide/hydrogen ratio for direct application in F-T synthesis. Meanwhile, combined carbon dioxide into reforming reaction has attracted more and more attention in recent studies, which has great potential to help reduce emission of greenhouse gas. However, the main challenge for reforming process is to maintain reaction for a long period running. In this study, a lab-scale reactor is designed and evaluated to achieve high efficiency for 2 types of reforming reaction, steam reforming and dry reforming. For this reactor, methane, the main content of natural gas, was used as reactant gas in the reactor for progressive understanding of reforming. The Nickel based catalyst supported by SiO2 is preloaded and fixed in the catalyst zone of reactor. The selection and preparation for catalyst and support has been discussed in this study. For Steam Methane Reforming reaction, experimental work is conducted under Steam/Carbon ratio from 1 to 4, temperature range from 700 ̊C to 800 ̊C. Methane is fed to the reactor at flow rate 55 sccm at 1 atm pressure, where experimental conversion data were obtained. The conversion rate of methane is calculated as a standard for evaluation of reactor efficiency. As part of Fischer-Tropsch process, the quality of gas production is evaluated by H2/CO ratio. The catalyst is examined by XRD and EDAX spectrum for carbon formation test. For Dry Methane Reforming reaction, experiment is conducted under a temperature range from 500 ̊ C to 700 ̊ C with molar ratio of CH4/CO2 1. The total flow rate for mixture gas is 65 sccm. The conversion rates for both methane and carbon dioxide are calculated. The product quality is examined by H2/CO ratio. The catalyst stability test is conducted in a high carbon intensity with a CO2/CH4 ratio 4 at 700 ̊ C and total flow rate 65 sccm. The catalyst is separately characterized in 3 different phases by SEM and XRD technology to identify carbon deposition. The results from experiments state that the reactor is able to convert methane to syngas with high efficiency and high tolerance for carbon deposition at high temperature environment. COMSOL software is applied for reforming reaction process simulation, and the results from simulation support the statement from experiment.

Author: M. J. Iqual
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description

Author: Jens Rostrup-nielsen
Publisher: World Scientific
ISBN: 1908978007
Category : Science
Languages : en
Pages : 390

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Book Description
This book provides a general overview of syngas technologies as well as an in-depth analysis of the steam reforming process. Syngas is a mixture of hydrogen and carbon oxides which can be made from hydrocarbons, coal and biomass. It is an important intermediate in the chemical industry for manufacture of ammonia, methanol and other petrochemicals as well as hydrogen for refineries and fuel cells. Syngas is playing a growing role in the energy sector, because it can be converted into a number of important energy carriers and fuels. Syngas catalysis creates new options and flexibility in the complex energy network. The steam reforming process is the main technology today for manufacture of syngas. It is a complex intern-mingling of catalysis and heat transfer with restrictions caused by secondary phenomena such as carbon formation. Many of the principles are applicable for other gasification technologies of growing importance. Concepts of Syngas Preparation aims to provide a comprehensive introduction to this complex field of growing importance and gives a detailed analysis of the catalyst and process problems. This book also serves as an important link between science and industry by illustrating how the basic principles can be applied to solve design issues and operational problems./a