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Mechanism Of Adsorption And Phase Transitions In Heterogeneous Nanopores
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Book Synopsis Mechanism of Adsorption and Phase Transitions in Heterogeneous Nanopores by : Marcin Marzec
Download or read book Mechanism of Adsorption and Phase Transitions in Heterogeneous Nanopores written by Marcin Marzec and published by . This book was released on 2007 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le sujet général de la thèse est l'étude numérique et, dans une plus faible mesure, expérimentale de la physisorption dans des matériaux nanoporeux. Les chapitres 1 à 5 font le point des recherches dans ce domaine scientifique et permettent d'introduire les méthodes numériques et expérimentales utilisées. Les résultats scientifiques sont rassemblés dans les chapitres 6 à 9, qui constituent la seconde partie du mémoire. Le travail est concentré sur l'étude du mécanisme d'adsorption de molécules tétraédriques, CCI4 et CH4, dans les matériaux poreux de géométrie et rugosité de murs différentes. Quatre problèmes distincts, mais formant néanmoins un ensemble cohérent, sont abordés : i) quelle est le rôle du choix de modèle de la molécule sur les propriétés thermodynamiques du liquide adsorbé sur la surface ouverte de l'adsorbent? ii) que devient ce rôle lorsque l'adsorbat est confiné dans les pores en forme de fentes? iii) quel est l'influence de la rugosité de la surface adsorbante sur le processus de fusion de l'adsorbat? iv) peut-on reproduire, en utilisant des considérations énergétiques et géométriques simples, l'isotherme d'adsorption des gazes dans les pores présentant une forte hétérogénéité de surface? Les réponses apportées par l'auteur et faisant objet de ce mémoire.
Book Synopsis Adsorption Studies of Heterogeneous Phase Transitions by :
Download or read book Adsorption Studies of Heterogeneous Phase Transitions written by and published by . This book was released on 1954 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Adsorption and Phase Behaviour in Nanochannels and Nanotubes by : Lawrence J. Dunne
Download or read book Adsorption and Phase Behaviour in Nanochannels and Nanotubes written by Lawrence J. Dunne and published by Springer Science & Business Media. This book was released on 2009-09-24 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Channels of nanotubular dimensions exist in a variety of materials (examples are carbon nanotubes and the nanotubular channels of zeolites and zeotypes) and show promise for numerous applications due to their unique properties. One of their most important properties is their capacity to adsorb molecules and these may exist in a variety of phases. "Adsorption and Phase Behaviour in Nanochannels and Nanotubes" provides an excellent review of recent and current work on adsorption on nanometerials. It is an impressive collection of papers dealing with the adsorption and phase behaviour in nanoporous materials from both experimental and theoretical perspectives. "Adsorption and Phase Behaviour in Nanochannels and Nanotubes" focuses on carbon nanotubes as well as zeolites and related materials.
Book Synopsis Experimental Investigation on Phase Behavior of Fluids Confined in Nanopores by : Huan Yang
Download or read book Experimental Investigation on Phase Behavior of Fluids Confined in Nanopores written by Huan Yang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current limited understanding of phase behavior of fluids confined in nanopores restricts the applications of nanoporous media ranging from energy and environment to biology and medicine, such as recovery of hydrocarbons from shale resources, drug delivery, catalysis, gas storage, and separation. Although capillary condensation/evaporation and pore critical point (PCP) of fluids have been extensively studied using various experimental methods, certain features of phase behavior of fluids confined in nanopores have hardly or never been experimentally studied due to either detection limit of experimental system or inapplicability of current experimental methods, such as the phase behavior of nanoconfined methane, gradual phase transition, fluid-solid phase transitions, pore triple point, and heat of capillary condensation. Furthermore, experimental results measured from different methods can barely be comparable due to different adsorbent-adsorbate systems. he challenges mentioned above have been successfully addressed by two established experimental systems and a newly developed experimental method, i.e., BT 2.15 differential scanning calorimetry (DSC) system, IGA-001 gravimetric sorption analyzer system, and isothermal DSC measurement. Specifically, the phase transition and criticality of methane in nanopores have been measured using the BT 2.15 DSC system, which can operate at very low temperature and high pressure. The validity is confirmed by the fact that the measured bulk condensation of methane is in excellent agreement with the literature data. The gradual phase transition of ethane confined in MCM-41 is then demonstrated through a multistep process with paths proceeding around PCP without crossing the capillary-condensation curve. The occurrence of gradual phase transition in nanopores, thus the confined supercriticality, for the first time, has been confirmed. Furthermore, capillary phase transitions (evaporation, melting, and sublimation) and the pore triple point of CO2 in nanopores have also been studied. For the first time, the solid-fluid phase transitions of CO2 in MCM-41 are found to shift to temperatures higher than the corresponding bulk phase transitions. The pore triple point of nanoconfined CO2 is bracketed and found to be lower than those of the bulk triple point. The capillary-melting and capillary-evaporation curves approach each other as temperature decreases until they meet at the pore triple point. Additionally, an accurate measurement on the heat of capillary condensation in nanopores by the tandem use of DSC and adsorption/desorption experiments, for the first time, has been developed. The latent heat of capillary condensation of propane in SBA-15 is found to be lower than that of bulk condensation and decreases with temperature. This is also the first time that the conditions of capillary condensation measured by two different experimental methods using identical mesoporous adsorbent-adsorbate system are compared. The two experimental methods prove to be equivalent.
Book Synopsis Nanoporous Materials for Molecule Separation and Conversion by : Jian Liu
Download or read book Nanoporous Materials for Molecule Separation and Conversion written by Jian Liu and published by Elsevier. This book was released on 2020-07-04 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoporous Materials for Molecule Separation and Conversion cover the topic with sections on nanoporous material synthesis and characterization, nanoporous materials for molecule separation, and nanoporous materials for energy storage and renewable energy. Typical nanoporous materials including carbon, zeolite, silica and metal-organic frameworks and their applications in molecule separation and energy related applications are covered. In addition, the fundamentals of molecule adsorption and molecule transport in nanoporous materials are also included, providing readers with a stronger understanding of the principles and topics covered. This is an important reference for anyone exploring nanoporous materials, including researchers and postgraduate students in materials science and chemical engineering. In addition, it is ideal for industry professionals working on a wide range of applications for nanoporous materials. Outlines the fundamental principles of nanoporous materials design Explores the application of nanoporous materials in important areas such as molecule separation and energy storage Gives real-life examples of how nanoporous materials are used in a variety of industry sector
Book Synopsis Mechanisms In Heterogeneous Catalysis by : Rutger A Van Santen
Download or read book Mechanisms In Heterogeneous Catalysis written by Rutger A Van Santen and published by World Scientific. This book was released on 2023-06-28 with total page 719 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous catalysis has developed over the past two centuries as a technology driven by the needs of society, and is part of Nobel Prize-winning science. This book describes the spectacular increase in molecular understanding of heterogenous catalytic reactions in important industrial processes. Reaction mechanism and kinetics are discussed with a unique focus on their relation with the inorganic chemistry of the catalyst material. An introductory chapter presents the development of catalysis science and catalyst discovery from a historical perspective. Five chapters that form the thrust of the book are organized by type of reaction, reactivity principles, and mechanistic theories, which provide the scientific basis to structure-function relationships of catalyst performance. Present-day challenges to catalysis are sketched in a final chapter. Written by one of the world's leading experts on the topic, this definitive text is an essential reference for students, researchers and engineers working in this multibillion-dollar field.
Book Synopsis Characterization of Solid Materials and Heterogeneous Catalysts, 2 Volume Set by : Michel Che
Download or read book Characterization of Solid Materials and Heterogeneous Catalysts, 2 Volume Set written by Michel Che and published by John Wiley & Sons. This book was released on 2012-05-14 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume book provides an overview of physical techniques used to characterize the structure of solid materials, on the one hand, and to investigate the reactivity of their surface, on the other. Therefore this book is a must-have for anyone working in fields related to surface reactivity. Among the latter, and because of its most important industrial impact, catalysis has been used as the directing thread of the book. After the preface and a general introduction to physical techniques by M. Che and J.C. Vedrine, two overviews on physical techniques are presented by G. Ertl and Sir J.M. Thomas for investigating model catalysts and porous catalysts, respectively. The book is organized into four parts: Molecular/Local Spectroscopies, Macroscopic Techniques, Characterization of the Fluid Phase (Gas and/ or Liquid), and Advanced Characterization. Each chapter focuses upon the following important themes: overview of the technique, most important parameters to interpret the experimental data, practical details, applications of the technique, particularly during chemical processes, with its advantages and disadvantages, conclusions.
Book Synopsis Nanoporous Materials by : Nick Kanellopoulos
Download or read book Nanoporous Materials written by Nick Kanellopoulos and published by CRC Press. This book was released on 2016-04-19 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Having successfully replaced elements used in traditional, pollution-prone, energy-consuming separation processes, nanoporous materials play an important role in chemical processing. Although their unique structural or surface physicochemical properties can, to an extent, be tailored to meet specific process-related requirements, the task of charac
Book Synopsis Phase Behavior by : Curtis H. Whitson
Download or read book Phase Behavior written by Curtis H. Whitson and published by Society of Petroleum Engineers. This book was released on 2000 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phase Behavior provides the reader with the tools needed to solve problems requiring a description of phase behavior and specific pressure/volume/temperature (PVT) properties.
Download or read book Nanoporous Materials written by and published by . This book was released on 2005 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Molecular Modeling for the Design of Novel Performance Chemicals and Materials by : Beena Rai
Download or read book Molecular Modeling for the Design of Novel Performance Chemicals and Materials written by Beena Rai and published by CRC Press. This book was released on 2012-03-23 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular modeling (MM) tools offer significant benefits in the design of industrial chemical plants and material processing operations. While the role of MM in biological fields is well established, in most cases MM works as an accessory in novel products/materials development rather than a tool for direct innovation. As a result, MM engineers and practitioners are often seized with the question: "How do I leverage these tools to develop novel materials or chemicals in my industry?" Molecular Modeling for the Design of Novel Performance Chemicals and Materials answers this important question via a simple and practical approach to the MM paradigm. Using case studies, it highlights the importance and usability of MM tools and techniques in various industrial applications. The book presents detailed case studies demonstrating diverse applications such as mineral processing, pharmaceuticals, ceramics, energy storage, electronic materials, paints, coatings, agrochemicals, and personal care. The book is divided into themed chapters covering a diverse range of industrial case studies, from pharmaceuticals to cement. While not going too in-depth into fundamental aspects, the book covers almost all paradigms of MM, and references are provided for further learning. The text includes more than 100 color illustrations of molecular models.
Book Synopsis Confined Fluid Phase Behavior and CO2 Sequestration in Shale Reservoirs by : Yueliang Liu
Download or read book Confined Fluid Phase Behavior and CO2 Sequestration in Shale Reservoirs written by Yueliang Liu and published by Gulf Professional Publishing. This book was released on 2022-05-05 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Confined Fluid Phase Behavior and CO2 Sequestration in Shale Reservoirs delivers the calculation components to understand pore structure and absorption capacity involving unconventional reservoirs. Packed with experimental procedures, step-by-step instructions, and published data, the reference explains measurements for capillary pressure models, absorption behavior in double nano-pore systems, and the modeling of interfacial tension in C02/CH4/brine systems. Rounding out with conclusions and additional literature, this reference gives petroleum engineers and researchers the knowledge to maximize productivity in shale reservoirs. Helps readers gain advanced understanding of methods of adsorption behavior in shale gas Presents theories and calculations for measuring and computing by providing step-by-step instructions, including flash calculation for phase equilibrium Includes advances in shale fluid behavior, along with well-structured experiments and flow charts
Book Synopsis Gas Adsorption in Metal-Organic Frameworks by : T. Grant Glover
Download or read book Gas Adsorption in Metal-Organic Frameworks written by T. Grant Glover and published by CRC Press. This book was released on 2018-09-03 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text discusses the synthesis, characterization, and application of metal-organic frameworks (MOFs) for the purpose of adsorbing gases. It provides details on the fundamentals of thermodynamics, mass transfer, and diffusion that are commonly required when evaluating MOF materials for gas separation and storage applications and includes a discussion of molecular simulation tools needed to examine gas adsorption in MOFs. Additionally, the work presents techniques that can be used to characterize MOFs after gas adsorption has occurred and provides guidance on the water stability of these materials. Lastly, applications of MOFs are considered with a discussion of how to measure the gas storage capacity of MOFs, a discussion of how to screen MOFs to for filtration applications, and a discussion of the use of MOFs to perform industrial separations, such as olefin/paraffin separations. Throughout the work, fundamental information, such as a discussion on the calculation of MOF surface area and description of adsorption phenomena in packed-beds, is balanced with a discussion of the results from research literature.
Book Synopsis Introduction to Zeolite Molecular Sieves by : Jiri Cejka
Download or read book Introduction to Zeolite Molecular Sieves written by Jiri Cejka and published by Elsevier. This book was released on 2007-10-02 with total page 1095 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to Zeolite Molecular Sieves, 3rd Edition presents a collection of the most important results and ideas in the field of molecular sieve chemistry and technology, the most important experimental techniques related to the research activities in molecular sieves, and identifies new areas of molecular sieve chemistry. Chapters start at a reasonably simple entry level, but also covers the present state-of-the-art in the field. Topics covered include structure, synthesis, characterization, ion exchange, adsorption, diffusion, separations, and natural zeolites. * 6 years since the last edtion this book brings together the rapid development within the field of molecular sieve chemistry and applications * Accessible to newcomers to the field, also containing valuable information for experienced researchers * 27 chapters written by renowned scientists in their field, including updates on some 2nd edition chapters
Download or read book Nanomineralogy written by Yiwen Ju and published by MDPI. This book was released on 2020-12-14 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2018, the International Symposium on Nanogeoscience was held in Guiyang, China. Scholars from around the globe gathered to discuss recent progress and development trends in various aspects of nanogeoscience, including nanomineralogy. Nanomineralogy, an important aspect of nanogeoscience, focuses on the composition, structure, and physical and chemical properties of nanoscale minerals and their interrelations with other Earth critical components. To give a sampling of the latest progress in nanomineralogy and related fields, we offer this Special Issue, which describes a full range of recent nanomineralogic achievements relating to everything from nanominerals and geochemistry, mineral nanostructures, and nanomineral deformation, to nanopores in oil and gas reservoirs, nanomineral deposits, and nanomineral material. Today, nanomineralogy faces a new strategic opportunity as well as a revolutionary challenge. We thus present this special nanomineralogy-focused issue of Minerals with the aim of encouraging our colleagues to familiarize themselves with current developments, trends, and directions in nanomineralogy, enabling an understanding of the potential of the field as a whole. We look forward to developing further scientific research and cooperation in nanomineralogy, hoping thereby to attract and guide young scholars to participate in this field.
Book Synopsis Adsorption of Gases on Heterogeneous Surfaces by : W. Rudzinski
Download or read book Adsorption of Gases on Heterogeneous Surfaces written by W. Rudzinski and published by Academic Press. This book was released on 2012-12-02 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: All real solid surfaces are heterogeneous to a greater or lesser extent and this book provides a broad yet detailed survey of the present state of gas adsorption. Coverage is comprehensive and extends from basic principles to computer simulation of adsorption. Underlying concepts are clarified and the strengths and weaknesses of the various methods described are discussed. Adsorption isotherm equations for various types of heterogeneous solid surfaces Methods of determining the nature of surface heterogeneity and porosity from experimental data Studies of phase behavior of gases absorbed on heterogeneous solid surfaces Computer simulation of adsorption on heterogeneous solid surfaces
Book Synopsis Reservoir Formation Conditions and Enrichment Mechanisms of Shale Oil and Gas by : Kun Zhang
Download or read book Reservoir Formation Conditions and Enrichment Mechanisms of Shale Oil and Gas written by Kun Zhang and published by Frontiers Media SA. This book was released on 2023-05-15 with total page 683 pages. Available in PDF, EPUB and Kindle. Book excerpt:
