Steam Reforming of Methane Over Rare-earth Doped Nickel Based Catalysts PDF Download

Author: Praharso
Publisher:
ISBN:
Category : Methane
Languages : en
Pages : 272

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Author: Bo Li
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
Dry reforming of methane (DRM) is an environment-friendly and sustainable chemical technique, since it converts methane and CO2, two most abundant greenhouse gases, into syngas and other high value chemical products. The most common catalyst for DRM reaction is Ni due to its low cost and high catalytic activity but Ni-based catalysts undergo severe deactivation due to coking. transition metal (TM) doped rare earth oxide catalysts have shown promise in the high catalytic activity and coking resistance ability. This thesis applies the first principles calculation method to design Ni and Zr doped CeO2 catalyst model. Density functional theory (DFT+U) method is used to generate the structure-composition-stability relationships. The distribution of Zr with multiple concentrations have been studied in the CeO2 fluorite lattice. The oxygen vacancy effect has also been examined in the bulk and surface Ni-doped CeO2 bulk and surface structure to determine the most stable configuration. The surface chemistry study of Ni-doped CeO2 surface shows that hydrocarbon over the surface is always oxidized and prefers bonding to the oxygen site rather than the Ni site. This result can thermodynamically explain the reason of catalyst coking resistance.

Author: Elizabeth L. Norris
Publisher:
ISBN:
Category :
Languages : en
Pages :

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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: Duane Benjamin Myers
Publisher:
ISBN:
Category :
Languages : en
Pages : 84

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Author: Ke Liu
Publisher: John Wiley & Sons
ISBN: 0470561246
Category : Technology & Engineering
Languages : en
Pages : 564

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Book Description
Covers the timely topic of fuel cells and hydrogen-based energy from its fundamentals to practical applications Serves as a resource for practicing researchers and as a text in graduate-level programs Tackles crucial aspects in light of the new directions in the energy industry, in particular how to integrate fuel processing into contemporary systems like nuclear and gas power plants Includes homework-style problems

Author: Fanglin Che
Publisher:
ISBN:
Category : Catalysis
Languages : en
Pages : 510

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Finally, we provide a 'bottom-up' fundamental insight into two debates regarding methane activation over Ni-based catalysts, including the role of a low concentration of carbon or carbide species and the role of electric fields in a fuel cell system. Our DFT results suggest that inducing a local change of the Ni oxidation states can markedly enhance methane activation. Overall, this thesis will be instructive for the design of heterogeneous reactors with tunable metal oxidation states via the modification of the surface carbon or the interface carbide complex as well as the addition of reaction environment factors (e.g., electric fields).

Author: Michael Charles Frederick Steel
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
STEAM REFORMING, NICKEL-ALUMINA, CATALYSTS, METHANATION, OXIDATION, CHEMICAL INTERACTIONS, CRYSTAL STRUCTURE, METHANE, KINETICS, COPRECIPITATION.

Author: Bert F. Sels
Publisher: John Wiley & Sons
ISBN: 3527339140
Category : Technology & Engineering
Languages : en
Pages : 1180

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Book Description
Dieses Handbuch präsentiert die in den letzten zehn Jahren entstandenen neuen Anwendungsbereiche und gibt einen umfassenden Überblick über dieses wissenschaftlich und ökonomisch wichtige Gebiet. Einzigartig ist die Verbindung von Grundlagenforschung und industrieller Entwicklung.

Author: Bert Sels
Publisher: John Wiley & Sons
ISBN: 3527699813
Category : Technology & Engineering
Languages : en
Pages : 1500

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Book Description
Reflecting the R&D efforts in the field that have resulted in a plethora of novel applications over the past decade, this handbook gives a comprehensive overview of the tangible benefits of nanotechnology in catalysis. By bridging fundamental research and industrial development, it provides a unique perspective on this scientifically and economically important field. While the first three parts are devoted to preparation and characterization of nanocatalysts, the final three provide in-depth insights into their applications in the fine chemicals industry, the energy industry, and for environmental protection, with expert authors reporting on real-life applications that are on the brink of commercialization. Timely reading for catalytic chemists, materials scientists, chemists in industry, and process engineers.