Some Preliminary Experiments On The Specific Heat Of Helium Four Adsorbed In 13x Zeolite
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Some Preliminary Experiments On The Specific Heat Of Helium Four Adsorbed In 13x Zeolite
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Author : Judith Ann Gould
language : en
Publisher:
Release Date : 1964
Some Preliminary Experiments On The Specific Heat Of Helium Four Adsorbed In 13x Zeolite written by Judith Ann Gould and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Helium categories.
This thesis is a description of some experiments designed to test the feasibility of doing a detailed study of the specific heat of helium adsorbed in 13X-zeolite, an alumina-silicate with a regular cavity structure. The interest in this system arose from the controversy as to whether the first layer of adsorbed helium is solid or not. It was also hoped that this system would test the postulate(11) that helium is a quantum liquid if experiments were carried out with both helium three and helium four. The experiments reported here, however, were strictly of a preliminary nature and had only the following objectives: to develop some of the techniques, using helium four, necessary for doing a detailed examination of both the helium-four-and helium-three-zeolite systems, to measure an isotherm of helium four adsorbed in 13X-zeolite, and to obtain an estimate of the specific heat of helium four in the 13X lattice at liquid-helium temperatures above 1.8°K. In view of these objectives three isotherms of helium four adsorbed in zeolite were done. These measurements showed that most of the gas was adsorbed at pressures lower than those measured on the manometers. In addition, two heat-capacity runs were done in the temperature region 1.8 - 4.1°K with a bomb calorimeter in the first run the calorimeter was filled with helium; in the second it was empty. The specific heat of helium four in zeolite was obtained by subtracting the results of the second run from that of the first. From this experiment the specific heat of helium adsorbed in 13X is significantly lower than that of the bulk liquid. No specific-heat maximum was observed but this is not surprising when the temperatures used and the manner in which the experiments were done are considered. The preliminary study shows that the study of the helium - 13X system was worthwhile and should be continued in greater detail. Another group has already reported results for helium three in the zeolite (22).
Proceedings Of The Symposium On Thermophysical Properties
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Author :
language : en
Publisher:
Release Date : 1970
Proceedings Of The Symposium On Thermophysical Properties written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Gases categories.
Adsorption Analysis Equilibria And Kinetics With Cd Containing Computer Matlab Programs
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Author : Duong D Do
language : en
Publisher: World Scientific
Release Date : 1998-09-22
Adsorption Analysis Equilibria And Kinetics With Cd Containing Computer Matlab Programs written by Duong D Do and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-09-22 with Technology & Engineering categories.
This book covers topics of equilibria and kinetics of adsorption in porous media. Fundamental equilibria and kinetics are dealt with for homogeneous as well as heterogeneous particles. Five chapters of the book deal with equilibria and eight chapters deal with kinetics. Single component as well as multicomponent systems are discussed. In kinetics analysis, we deal with the various mass transport processes and their interactions inside a porous particle. Conventional approaches as well as the new approach using Maxwell-Stefan equations are presented. Various methods to measure diffusivity, such as the Differential Adsorption Bed (DAB), the time lag, the diffusion cell, chromatography, and the batch adsorber methods are also covered by the book. It can be used by lecturers and engineers who wish to carry out research in adsorption. A number of programming codes written in MatLab language are included so that readers can use them directly to better understand the behavior of single and multicomponent adsorption systems.
Zeolites In Industrial Separation And Catalysis
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Author : Santi Kulprathipanja
language : en
Publisher: John Wiley & Sons
Release Date : 2010-01-26
Zeolites In Industrial Separation And Catalysis written by Santi Kulprathipanja and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-26 with Science categories.
This first book to offer a practical overview of zeolites and their commercial applications provides a practical examination of zeolites in three capacities. Edited by a globally recognized and acclaimed leader in the field with contributions from major industry experts, this handbook and ready reference introduces such novel separators as zeolite membranes and mixed matrix membranes. The first part of the book discusses the history and chemistry of zeolites, while the second section focuses on separation processes. The third and final section treats zeolites in the field of catalysis. The three sections are unified by an examination of how the unique properties of zeolites allow them to function in different capacities as an adsorbent, a membrane and as a catalyst, while also discussing their impact within the industry.
Materials For Carbon Capture
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Author : De-en Jiang
language : en
Publisher: John Wiley & Sons
Release Date : 2020-02-25
Materials For Carbon Capture written by De-en Jiang and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-25 with Science categories.
Covers a wide range of advanced materials and technologies for CO2 capture As a frontier research area, carbon capture has been a major driving force behind many materials technologies. This book highlights the current state-of-the-art in materials for carbon capture, providing a comprehensive understanding of separations ranging from solid sorbents to liquid sorbents and membranes. Filled with diverse and unconventional topics throughout, it seeks to inspire students, as well as experts, to go beyond the novel materials highlighted and develop new materials with enhanced separations properties. Edited by leading authorities in the field, Materials for Carbon Capture offers in-depth chapters covering: CO2 Capture and Separation of Metal-Organic Frameworks; Porous Carbon Materials: Designed Synthesis and CO2 Capture; Porous Aromatic Frameworks for Carbon Dioxide Capture; and Virtual Screening of Materials for Carbon Capture. Other chapters look at Ultrathin Membranes for Gas Separation; Polymeric Membranes; Carbon Membranes for CO2 Separation; and Composite Materials for Carbon Captures. The book finishes with sections on Poly(amidoamine) Dendrimers for Carbon Capture and Ionic Liquids for Chemisorption of CO2 and Ionic Liquid-Based Membranes. A comprehensive overview and survey of the present status of materials and technologies for carbon capture Covers materials synthesis, gas separations, membrane fabrication, and CO2 removal to highlight recent progress in the materials and chemistry aspects of carbon capture Allows the reader to better understand the challenges and opportunities in carbon capture Edited by leading experts working on materials and membranes for carbon separation and capture Materials for Carbon Capture is an excellent book for advanced students of chemistry, materials science, chemical and energy engineering, and early career scientists who are interested in carbon capture. It will also be of great benefit to researchers in academia, national labs, research institutes, and industry working in the field of gas separations and carbon capture.
Natural Zeolites
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Author : David L. Bish
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2018-12-17
Natural Zeolites written by David L. Bish and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-17 with Science categories.
Volume 45 of Reviews in Mineralogy and Geochemistry is a new and expanded update of Volume 4 from 1977. Most of the material in this volume is entirely new, and Natural Zeolites: Occurrence, Properties, Applications presents a fresh and expanded look at many of the subjects contained in Volume 4. There has been an explosion in our knowledge of the crystal chemistry and structures of natural zeolites (Chapters 1 and 2), due in part to the now-common Rietveld method that allows treatment of powder diffraction data. Studies on the geochemistry of natural zeolites have also greatly increased, partly as a result of the interests related to the disposal of radioactive wastes, and Chapters 3, 4, 5, 13, and 14 detail the latest results in this important area. Until the latter part of the 20th century, zeolites were often looked upon as a geological curiosity, but they are now known to be widespread throughout the world in sedimentary and igneous deposits and in soils (Chapters 6-12). The application of natural zeolites has greatly expanded since the first zeolite volume. Chapter 15 details the use of natural zeolites for removal of ammonium ions, heavy metals, radioactive cations, and organic molecules from natural waters, wastewaters, and soils. Similarly, Chapter 16 describes the use of natural zeolites as building blocks and cements in the building industry, Chapter 17 outlines their use in solar energy storage, heating, and cooling applications, and Chapter 18 describes their use in a variety of agricultural applications, including as soil conditioners, slow-release fertilizers, soil-less substrates, carriers for insecticides and pesticides, and remediation agents in contaminated soils.
Principles Of Adsorption And Adsorption Processes
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Author : Douglas M. Ruthven
language : en
Publisher: John Wiley & Sons
Release Date : 1984-06-05
Principles Of Adsorption And Adsorption Processes written by Douglas M. Ruthven and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984-06-05 with Technology & Engineering categories.
The first up-to-date summary and review for the fundamental principles and industrial practice of adsorption separation processes in more than 30 years. Emphasizes the understanding of adsorption column dynamics and the modeling of adsorption systems, as well as fundamental aspects of kinetics and equilibria.
Industrial Gas Handbook
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Author : Frank G. Kerry
language : en
Publisher: CRC Press
Release Date : 2007-02-22
Industrial Gas Handbook written by Frank G. Kerry and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-22 with Science categories.
Drawing on Frank G. Kerry's more than 60 years of experience as a practicing engineer, the Industrial Gas Handbook: Gas Separation and Purification provides from-the-trenches advice that helps practicing engineers master and advance in the field. It offers detailed discussions and up-to-date approaches to process cycles for cryogenic separation of
Porous Materials For Carbon Dioxide Capture
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Author : An-Hui Lu
language : en
Publisher: Springer Science & Business
Release Date : 2014-04-17
Porous Materials For Carbon Dioxide Capture written by An-Hui Lu and has been published by Springer Science & Business this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-17 with Technology & Engineering categories.
This multi-authored book provides a comprehensive overview of the latest developments in porous CO2 capture materials, including ionic liquid–derived carbonaceous adsorbents, porous carbons, metal-organic frameworks, porous aromatic frameworks, micro porous organic polymers. It also reviews the sorption techniques such as cyclic uptake and desorption reactions and membrane separations. In each category, the design and fabrication, the comprehensive characterization, the evaluation of CO2 sorption/separation and the sorption/degradation mechanism are highlighted. In addition, the advantages and remaining challenges as well as future perspectives for each porous material are covered. This book is aimed at scientists and graduate students in such fields as separation, carbon, polymer, chemistry, material science and technology, who will use and appreciate this information source in their research. Other specialists may consult specific chapters to find the latest, authoritative reviews. Dr. An-Hui Lu is a Professor at the State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Faculty of Chemical, Environmental and Biological Science and Technology, Dalian University of Technology, China. Dr. Sheng Dai is a Corporate Fellow and Group Leader in the Chemical Sciences Division at Oak Ridge National Laboratory (ORNL) and a Professor of Chemistry at the University of Tennessee, USA.
Characterization Of Porous Solids And Powders Surface Area Pore Size And Density
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Author : S. Lowell
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-09-14
Characterization Of Porous Solids And Powders Surface Area Pore Size And Density written by S. Lowell and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-09-14 with Science categories.
The growth of interest in newly developed porous materials has prompted the writing of this book for those who have the need to make meaningful measurements without the benefit of years of experience. One might consider this new book as the 4th edition of "Powder Surface Area and Porosity" (Lowell & Shields), but for this new edition we set out to incorporate recent developments in the understanding of fluids in many types of porous materials, not just powders. Based on this, we felt that it would be prudent to change the title to "Characterization of Porous Solids and Powders: Surface Area, Porosity and Density". This book gives a unique overview of principles associated with the characterization of solids with regard to their surface area, pore size, pore volume and density. It covers methods based on gas adsorption (both physi and chemisorption), mercury porosimetry and pycnometry. Not only are the theoretical and experimental basics of these techniques presented in detail but also, in light of the tremendous progress made in recent years in materials science and nanotechnology, the most recent developments are described. In particular, the application of classical theories and methods for pore size analysis are contrasted with the most advanced microscopic theories based on statistical mechanics (e.g. Density Functional Theory and Molecular Simulation). The characterization of heterogeneous catalysts is more prominent than in earlier editions; the sections on mercury porosimetry and particularly chemisorption have been updated and greatly expanded.