Co2 Methanation Over Alumina Supported Cobalt Oxide And Carbide Synthesized By Reverse Microemulsion Method

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CO2 Methanation Over Alumina-supported Cobalt Oxide and Carbide Synthesized by Reverse Microemulsion Method

Author : Yue Yu
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (112 download)

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Book Synopsis CO2 Methanation Over Alumina-supported Cobalt Oxide and Carbide Synthesized by Reverse Microemulsion Method by : Yue Yu

Download or read book CO2 Methanation Over Alumina-supported Cobalt Oxide and Carbide Synthesized by Reverse Microemulsion Method written by Yue Yu and published by . This book was released on 2019 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past age, CO2 conversion catalysts have gained attention due to various environmental issues caused by CO2 emission. Catalytic reduction of CO2 using renewable hydrogen as reductant to produce renewable fuels is considered as a potential solution to store the surplus renewable energy and reduce the CO2 emission. Alumina-supported cobalt oxide and cobalt carbide catalysts prepared by reverse microemulsion (RME) method were investigated for CO2 methanation. Results showed that the prepared catalysts were nanosized particles ranged from 5-15 nm. XRD, BET, SEM and TEM were used for catalysts characterization and TPR was conducted to study the reducibility. The catalytic performance of these catalysts was studied by CO2 methanation reaction. At 400 ʻC, 3 bar, under a 60,000 mL gcat-1 h-1 flow (H2:CO2=4:1), the selectivity to methane on alumina-supported cobalt carbide catalysts can reach 0.96 and the conversion of CO2 was 0.78, showing high catalytic activity and mild reaction condition. With increasing pressure, the conversion of CO2, as well as the selectivity to CH4 both increased and reached 0.91 and 0.98 respectively at 11 bar showing excellent performance towards CO2 methanation. In-situ FTIR was used to study the mechanism of the reaction on alumina-supported cobalt catalysts. The pathway from CO2 to methane and adsorbed intermediates on catalysts were investigated. Intermediates and adsorbed species on the catalysts were investigated during the reaction. At lower temperature and lower gas concentration, CO2 was adsorbed on the surface as carbonates. When the reaction condition was achieved, adsorbed CO2 started to be reacted to CO and CH4 and intermediate species started to appear.

CO2 Hydrogenation Over Basic Oxide-modified AJ203 Supported Cobalt Catalysts

Author : Pornrawee Somkua
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (987 download)

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Book Synopsis CO2 Hydrogenation Over Basic Oxide-modified AJ203 Supported Cobalt Catalysts by : Pornrawee Somkua

Download or read book CO2 Hydrogenation Over Basic Oxide-modified AJ203 Supported Cobalt Catalysts written by Pornrawee Somkua and published by . This book was released on 2013 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic oxides including MgO, CaO and La2O3 oxides were used to modify the properties of Al2O3 supported cobalt catalysts (15 wt% Co) in this study. The catalysts were prepared by the incipient wetness impregnation method of cobalt precursor onto the alumina supports. The catalysts were characterized by several techniques including XRD, BET, SEM, TEM, NH3-TPD, H2-TPR and H2-chemisorption. It was found that the reduction behaviors of cobalt species on the alumina supports were altered by the basic oxide modification. The TPR results showed that the addition of MgAl and La promoters could suppress the strong interaction between cobalt metal and the alumina support leading to the improvement of reducibility of the cobalt catalysts hence higher catalytic activity in CO2 hydrogenation were obtained. However, the addition of excessive amount of Mg with high calcination temperature of the magnesium modified alumina support brought about the formation of magnesium aluminate spinel (MgAl2O4), which resulted in lower reducibility and lower catalytic activity in the CO2 hydrogenation.

A Kinetic Study of the Modified Fischer-Tropsch Synthesis Over an Alumina-supported Cobalt Oxide Catalyst

Author : Danny Chien Lu
Publisher :
ISBN 13 :
Total Pages : 966 pages
Book Rating : 4.:/5 (152 download)

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Book Synopsis A Kinetic Study of the Modified Fischer-Tropsch Synthesis Over an Alumina-supported Cobalt Oxide Catalyst by : Danny Chien Lu

Download or read book A Kinetic Study of the Modified Fischer-Tropsch Synthesis Over an Alumina-supported Cobalt Oxide Catalyst written by Danny Chien Lu and published by . This book was released on 1985 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Renewable Synthetic Fuels and Chemicals from Carbon Dioxide

Author : David S.A. Simakov
Publisher : Springer
ISBN 13 : 3319611127
Total Pages : 75 pages
Book Rating : 4.3/5 (196 download)

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Book Synopsis Renewable Synthetic Fuels and Chemicals from Carbon Dioxide by : David S.A. Simakov

Download or read book Renewable Synthetic Fuels and Chemicals from Carbon Dioxide written by David S.A. Simakov and published by Springer. This book was released on 2017-07-24 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book outlines the most recent progress in the development of technologies for carbon dioxide utilization into renewable synthetic fuels and platform chemicals via chemical and biological routes. Various processes are discussed, including thermocatalytic, electrocatalytic, photocatalytic, and biological conversion. This SpringerBrief consists of four chapters, each chapter outlining fundamentals and catalytic mechanisms, and discussing main design considerations and major technological challenges, providing also a brief outline of the most recent progress. The book is useful for a broad community of academic and industrial researchers in the fields of chemical reaction engineering, electro- and photo-chemistry, and biochemical engineering, with specific emphasizes on heterogeneous catalysis, reactor design and process development.

Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis

Author : Jean-Marie Basset
Publisher : Springer Science & Business Media
ISBN 13 : 9400929714
Total Pages : 340 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis by : Jean-Marie Basset

Download or read book Surface Organometallic Chemistry: Molecular Approaches to Surface Catalysis written by Jean-Marie Basset and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface organometallic chemistry is a new field bringing together researchers from organometallic, inorganic, and surface chemistry and catalysis. Topics ranging from reaction mechanisms to catalyst preparation are considered from a molecular basis, according to which the "active site" on a catalyst surface has a supra-molecular character. This. the first book on the subject, is the outcome of a NATO Workshop held in Le Rouret. France, in May. 1986. It is our hope that the following chapters and the concluding summary of recommendations for research may help to provide a definition of surface organometallic chemistry. Besides catalysis. the central theme of the Workshop, four main topics are considered: 1) Reactions of organometallics with surfaces of metal oxides, metals. and zeolites; 2) Molecular models of surfaces, metal oxides, and metals; 3) Molecular approaches to the mechanisms of surface reactions; 4) Synthesis and modification of zeolites and related microporous solids. Most surface organometallic chemistry has been carried out on amorphous high-surf ace-area metal oxides such as silica. alumina. magnesia, and titania. The first chapter. contributed by KNOZINGER. gives a short summary of the structure and reactivity of metal oxide surfaces. Most of our understanding of these surfaces is based on acid base and redox chemistry; this chemistry has developed from X-ray and spectroscopic data, and much has been inferred from the structures and reactivities of adsorbed organic probe molecules. There are major opportunities for extending this understanding by use of well-defined (single crystal) oxide surfaces and organometallic probe molecules.

Supported Catalysts and Their Applications

Author : David C Sherrington
Publisher : Royal Society of Chemistry
ISBN 13 : 1847551963
Total Pages : 282 pages
Book Rating : 4.8/5 (475 download)

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Book Synopsis Supported Catalysts and Their Applications by : David C Sherrington

Download or read book Supported Catalysts and Their Applications written by David C Sherrington and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to improve both the efficiency and environmental acceptability of industrial processes is driving the development of heterogeneous catalysts across the chemical industry, including commodity, specialty and fine chemicals and in pharmaceuticals and agrochemicals. Drawing on international research, Supported Catalysts and their Applications discusses aspects of the design, synthesis and application of solid supported reagents and catalysts, including supported reagents for multi-step organic synthesis; selectivity in oxidation catalysis; mesoporous molecular sieve catalysts; and the use of Zeolite Beta in organic reactions. In addition, the two discrete areas of heterogeneous catalysis (inorganic oxide materials and polymer-based catalysts) that were developing in parallel are now shown to be converging, which will be of great benefit to the whole field. Providing a snapshot of the state-of-the-art in this fast-moving field, this book will be welcomed by industrialists and researchers, particularly in the agrochemicals and pharmaceuticals industries.

Catalytic Hydrogenation

Author : L. Cervený
Publisher : Elsevier
ISBN 13 : 0080960618
Total Pages : 705 pages
Book Rating : 4.0/5 (89 download)

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Book Synopsis Catalytic Hydrogenation by : L. Cervený

Download or read book Catalytic Hydrogenation written by L. Cervený and published by Elsevier. This book was released on 1986-08-01 with total page 705 pages. Available in PDF, EPUB and Kindle. Book excerpt: The collection of contributions in this volume presents the most up-to-date findings in catalytic hydrogenation. The individual chapters have been written by 36 top specialists each of whom has achieved a remarkable depth of coverage when dealing with his particular topic. In addition to detailed treatment of the most recent problems connected with catalytic hydrogenations, the book also contains a number of previously unpublished results obtained either by the authors themselves or within the organizations to which they are affiliated.Because of its topical and original character, the book provides a wealth of information which will be invaluable not only to researchers and technicians dealing with hydrogenation, but also to all those concerned with homogeneous and heterogeneous catalysis, organic technology, petrochemistry and chemical engineering.

Carbon Dioxide Utilization for Global Sustainability

Author : Sang-Eon Park
Publisher : Elsevier
ISBN 13 : 0080472176
Total Pages : 626 pages
Book Rating : 4.0/5 (84 download)

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Book Synopsis Carbon Dioxide Utilization for Global Sustainability by : Sang-Eon Park

Download or read book Carbon Dioxide Utilization for Global Sustainability written by Sang-Eon Park and published by Elsevier. This book was released on 2004-10-27 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addressing global environmental problems, such as global warming is essential to global sustainability. Continued research leads to advancement in standard methods and produces new data. Carbon Dioxide Utilization for Global Sustainability: Proceedings of the 7th ICCDU (International Conference on Carbon Dioxide Utilization) reflects the most recent research results, as well as stimulating scientific discussions with new challenges in advancing the development of carbon dioxide utilization. Drawing on a wealth of information, this well structured book will benefit students, researchers and consultants looking to catch up on current developments in environmental and chemical engineering. * Provides comprehensive data on CO2 utilisation* Contains up-to-date information, including recent research trends* Is written for students, researchers and consultants in environmental and chemical engineering

Iron and Cobalt Catalysts

Author : Wilson D. Shafer
Publisher : MDPI
ISBN 13 : 303928388X
Total Pages : 414 pages
Book Rating : 4.0/5 (392 download)

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Book Synopsis Iron and Cobalt Catalysts by : Wilson D. Shafer

Download or read book Iron and Cobalt Catalysts written by Wilson D. Shafer and published by MDPI. This book was released on 2020-06-23 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the turn of the last century when the field of catalysis was born, iron and cobalt have been key players in numerous catalysis processes. These metals, due to their ability to activate CO and CH, haev a major economic impact worldwide. Several industrial processes and synthetic routes use these metals: biomass-to-liquids (BTL), coal-to-liquids (CTL), natural gas-to-liquids (GTL), water-gas-shift, alcohol synthesis, alcohol steam reforming, polymerization processes, cross-coupling reactions, and photocatalyst activated reactions. A vast number of materials are produced from these processes, including oil, lubricants, waxes, diesel and jet fuels, hydrogen (e.g., fuel cell applications), gasoline, rubbers, plastics, alcohols, pharmaceuticals, agrochemicals, feed-stock chemicals, and other alternative materials. However, given the true complexities of the variables involved in these processes, many key mechanistic issues are still not fully defined or understood. This Special Issue of Catalysis will be a collaborative effort to combine current catalysis research on these metals from experimental and theoretical perspectives on both heterogeneous and homogeneous catalysts. We welcome contributions from the catalysis community on catalyst characterization, kinetics, reaction mechanism, reactor development, theoretical modeling, and surface science.

Synthesis Methods and Crystallization

Author : Riadh Marzouki
Publisher : BoD – Books on Demand
ISBN 13 : 1838802231
Total Pages : 138 pages
Book Rating : 4.8/5 (388 download)

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Book Synopsis Synthesis Methods and Crystallization by : Riadh Marzouki

Download or read book Synthesis Methods and Crystallization written by Riadh Marzouki and published by BoD – Books on Demand. This book was released on 2020-10-07 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: New crystalline materials (organic, inorganic, hybrid) are promising for various applications, including electrical, piezoelectric, ferroelectric, magnetic, and catalytic processes. In addition, given their remarkable structural richness, these materials exhibit several interesting physical properties, such as ionic conduction, ion exchange, and others. Crystal growth, morphology, and grain size are factors influencing these physical properties. This book examines methods of synthesis of the most common crystalline materials and describes nucleation and crystal growth of various materials.

Strong Metal-support Interactions

Author : R. T. K. Baker
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Strong Metal-support Interactions by : R. T. K. Baker

Download or read book Strong Metal-support Interactions written by R. T. K. Baker and published by . This book was released on 1986 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

An Economy Based on Carbon Dioxide and Water

Author : Michele Aresta
Publisher : Springer
ISBN 13 : 3030158683
Total Pages : 450 pages
Book Rating : 4.0/5 (31 download)

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Book Synopsis An Economy Based on Carbon Dioxide and Water by : Michele Aresta

Download or read book An Economy Based on Carbon Dioxide and Water written by Michele Aresta and published by Springer. This book was released on 2019-07-01 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to CO2 capture and utilization (CCU) from a green, biotechnological and economic perspective, and presents the potential of, and the bottlenecks and breakthroughs in converting a stable molecule such as CO2 into specialty chemicals and materials or energy-rich compounds. The use of renewable energy (solar, wind, geothermal, hydro) and non-fossil hydrogen is a must for converting large volumes of CO2 into energy products, and as such, the authors explore and compare the availability of hydrogen from water using these sources with that using oil or methane. Divided into 13 chapters, the book offers an analysis of the conditions under which CO2 utilization is possible, and discusses CO2 capture from concentrated sources and the atmosphere. It also analyzes the technological (non-chemical) uses of CO2, carbonation of basic minerals and industrial sludge, and the microbial-catalytic-electrochemical-photoelectrochemical-plasma conversion of CO2 into chemicals and energy products. Further, the book provides examples of advanced bioelectrochemical syntheses and RuBisCO engineering, as well as a techno-energetic and economic analysis of CCU. Written by leading international experts, this book offers a unique perspective on the potential of the various technologies discussed, and a vision for a sustainable future. Intended for graduates with a good understanding of chemistry, catalysis, biotechnology, electrochemistry and photochemistry, it particularly appeals to researchers (in academia and industry) and university teachers.

Catalyst Preparation

Author : John Regalbuto
Publisher : CRC Press
ISBN 13 : 1420006509
Total Pages : 490 pages
Book Rating : 4.4/5 (2 download)

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Book Synopsis Catalyst Preparation by : John Regalbuto

Download or read book Catalyst Preparation written by John Regalbuto and published by CRC Press. This book was released on 2016-04-19 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text explores the optimization of catalytic materials through traditional and novel methods of catalyst preparation, characterization, and monitoring for oxides, supported metals, zeolites, and heteropolyacids. It focuses on the synthesis of bulk materials and of heterogeneous materials, particularly at the nanoscale. The final chapters examine pretreatment, drying, finishing effects, and future applications involving catalyst preparation and the technological advances necessary for continued progress. Topics also include heat and mass transfer limitations, computation methods for predicting properties, and catalyst monitoring on laboratory and industrial scales.

Pincer Compounds

Author : David Morales-Morales
Publisher : Elsevier
ISBN 13 : 0128129328
Total Pages : 756 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Pincer Compounds by : David Morales-Morales

Download or read book Pincer Compounds written by David Morales-Morales and published by Elsevier. This book was released on 2018-04-11 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pincer Compounds: Chemistry and Applications offers valuable state-of-the-art coverage highlighting highly active areas of research—from mechanistic work to synthesis and characterization. The book focuses on small molecule activation chemistry (particularly H2 and hydrogenation), earth abundant metals (such as Fe), actinides, carbene-pincers, chiral catalysis, and alternative solvent usage. The book covers the current state of the field, featuring chapters from renowned contributors, covering four continents and ranging from still-active pioneers to new names emerging as creative strong contributors to this fascinating and promising area. Over a decade since the publication of Morales-Morales and Jensen’s The Chemistry of Pincer Compounds (Elsevier 2007), research in this unique area has flourished, finding a plethora of applications in almost every single branch of chemistry—from their traditional application as very robust and active catalysts all the way to potential biological and pharmaceutical applications. Describes the chemistry and applications of this important class of organometallic and coordination compounds Includes contributions from global leaders in the field, featuring pioneers in the area as well as emerging experts conducting exciting research on pincer complexes Highlights areas of promising and active research, including small molecule activation, earth abundant metals, and actinide chemistry

The Role of Catalysis for the Sustainable Production of Bio-fuels and Bio-chemicals

Author : Kostas Triantafyllidis
Publisher : Newnes
ISBN 13 : 0444563326
Total Pages : 607 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis The Role of Catalysis for the Sustainable Production of Bio-fuels and Bio-chemicals by : Kostas Triantafyllidis

Download or read book The Role of Catalysis for the Sustainable Production of Bio-fuels and Bio-chemicals written by Kostas Triantafyllidis and published by Newnes. This book was released on 2013-03-19 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Role of Catalysis for the Sustainable Production of Bio-fuels and Bio-chemicals describes the importance of catalysis for the sustainable production of biofuels and biochemicals, focused primarily on the state-of-the-art catalysts and catalytic processes expected to play a decisive role in the "green" production of fuels and chemicals from biomass. In addition, the book includes general elements regarding the entire chain of biomass production, conversion, environment, economy, and life-cycle assessment. Very few books are available on catalysis in production schemes using biomass or its primary conversion products, such as bio-oil and lignin. This book fills that gap with detailed discussions of: Catalytic pyrolysis of lignocellulosic biomass Hybrid biogasoline by co-processing in FCC units Fischer-Tropsch synthesis to biofuels (biomass-to-liquid process) Steam reforming of bio-oils to hydrogen With energy prices rapidly rising, environmental concerns growing, and regulatory apparatus evolving, this book is a resource with tutorial, research, and technological value for chemists, chemical engineers, policymakers, and students. Includes catalytic reaction mechanism schemes and gives a clear understanding of catalytic processes Includes flow diagrams of bench-, pilot- and industrial-scale catalytic processing units and demonstrates the various process technologies involved, enabling easy selection of the best process Incorporates many tables, enabling easy comparison of data based on a critical review of the available literature

Carbon Dioxide Utilization to Sustainable Energy and Fuels

Author : Inamuddin
Publisher : Springer Nature
ISBN 13 : 3030728773
Total Pages : 354 pages
Book Rating : 4.0/5 (37 download)

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Book Synopsis Carbon Dioxide Utilization to Sustainable Energy and Fuels by : Inamuddin

Download or read book Carbon Dioxide Utilization to Sustainable Energy and Fuels written by Inamuddin and published by Springer Nature. This book was released on 2021-11-30 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides an in-depth overview of carbon dioxide (CO2) transformations to sustainable power technologies. It also discusses the wide scope of issues in engineering avenues, key designs, device fabrication, characterizations, various types of conversions and related topics. It includes studies focusing on the applications in catalysis, energy conversion and conversion technologies, etc. This is a unique reference guide, and one of the detailed works is on this technology. The book is the result of commitments by leading researchers from various backgrounds and expertise. The book is well structured and is an essential resource for scientists, undergraduate, postgraduate students, faculty, R&D professionals, energy chemists and industrial experts.

Natural Gas Conversion

Author : A. Holmen
Publisher : Elsevier
ISBN 13 : 0080879179
Total Pages : 585 pages
Book Rating : 4.0/5 (88 download)

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Book Synopsis Natural Gas Conversion by : A. Holmen

Download or read book Natural Gas Conversion written by A. Holmen and published by Elsevier. This book was released on 1991-05-27 with total page 585 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings reflect the extensive fundamental and applied research efforts that are currently being made on the conversion of gas, in particular on the direct conversion of methane. The Symposium in Oslo focused on the following topics: Direct conversion of methane, Fischer-Tropsch chemistry, methanol conversion and natural gas conversion processes. The main aim was to present the state-of-the-art and progress currently being made within each of these areas. The book contains the papers presented and includes plenary lectures, short communications and posters. The papers will be of interest to scientists and engineers working in the field of gas conversion, transportation fuels, primary petrochemicals and catalysis.