Search Results for metal-organic-framework-membranes-for-molecular-gas-separations

Some of the pressing challenges in the field, and strategies to potentially overcome them are also distinctly outlined.This volume is a useful reference materials for professionals, academics, researchers and postgraduate students in ...

Author: Moises A. Carreon

Publisher: Chemical Engineering

ISBN: 1786346729

Category: Science

Page: 400

View: 980

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This unique compendium describes research progress on metal-organic framework (MOF) membranes for different relevant industrial gas separations. Specifically, the book focuses mainly on gas separations which are important in flue gas treatment, natural gas purification, hydrogen purification, and nuclear reprocessing. The advantages of using MOFs in mixed matrix membranes are discussed. Some of the pressing challenges in the field, and strategies to potentially overcome them are also distinctly outlined.This volume is a useful reference materials for professionals, academics, researchers and postgraduate students in chemical engineering and materials engineering.
2020-04-28 By Moises A. Carreon

This book aims at illustrating several examples of different membrane compositions ranging from inorganic, polymeric, metallic, metal organic framework, and composite which have been successfully deployed to separate industrially relevant ...

Author: Carreon Moises A

Publisher: World Scientific

ISBN: 9789813207721

Category: Technology & Engineering

Page: 376

View: 196

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This book aims at illustrating several examples of different membrane compositions ranging from inorganic, polymeric, metallic, metal organic framework, and composite which have been successfully deployed to separate industrially relevant gas mixtures including hydrogen, nitrogen, methane, carbon dioxide, olefins/parafins among others. Each book chapter highlights some of the current and key fundamental and technological challenges for these membranes that must be overcome in order to envision its application at industrial level. Contents: Mixed Matrix Membranes for Gas Separation Applications (Maria Carreon, Ganpat Dahe, Jie Feng and Surendar R Venna)Ceramic-Supported Organic Composite Membranes for Gas Separation (Gongping Liu and Wanqin Jin)Molecular Modeling of MOF Membranes for Gas Separations (Ilknur Erucar and Seda Keskin)Membrane Processes for N2–CH4 Separation (Shiguang Li, Zhaowang Zong, Miao Yu and Moises A Carreon)Polymer Blend Membranes for Gas Separations (Charles J Holt, Juan P Vizuet, Inga H Musselman, Kenneth J Balkus Jr and John P Ferraris)Manipulating Polyimide Nanostructures via Cross-linking for Membrane Gas Separation (Lingxiang Zhu, Maryam Omidvar and Haiqing Lin)Dense Inorganic Membranes for Hydrogen Separation (Sean-Thomas B Lundin, Neil S Patki, Thomas F Fuerst, Sandrine Ricote, Colin A Wolden and J Douglas Way) Readership: Graduate students and professionals in the field of membranes, gas separations and chemical engineering. Membranes;Gas Separations;Zeolites;Polymers;MetalsKey Features: Covers diverse industrially relevant gas separationsIllustrates different membrane compositionsChapters devoted to both experimental and modelling studies
2017-08-11 By Carreon Moises A

Yang, Q., Xue, C., Zhong, C. & Chen, J.-F. Molecular simulation of separation of CO2 from flue gases in CU-BTC metal-organic framework. AIChE J. 53, 2832–2840 (2007). 31. Sun, B., Kayal, S. & Chakraborty, A. Study of HKUST (Copper ...

Author: Moises A Carreon

Publisher: World Scientific

ISBN: 9781786346742

Category: Technology & Engineering

Page: 284

View: 588

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This unique compendium describes research progress on metal-organic framework (MOF) membranes for different relevant industrial gas separations. Specifically, the book focuses mainly on gas separations which are important in flue gas treatment, natural gas purification, hydrogen purification, and nuclear reprocessing. The advantages of using MOFs in mixed matrix membranes are discussed. Some of the pressing challenges in the field, and strategies to potentially overcome them are also distinctly outlined.This volume is a useful reference materials for professionals, academics, researchers and postgraduate students in chemical engineering and materials engineering.
2020-07-30 By Moises A Carreon

A new group of nanoporous materials, metal organic frameworks (MOFs), have emerged as a fascinating alternative to more traditional nanoporous materials for membrane based gas separations.

Author: Seda Keskin

Publisher:

ISBN: OCLC:642334456

Category: Gas separation membranes

Page:

View: 407

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A new group of nanoporous materials, metal organic frameworks (MOFs), have emerged as a fascinating alternative to more traditional nanoporous materials for membrane based gas separations. Although hundreds of different MOF structures have been synthesized in powder forms, very little is currently known about the potential performance of MOFs as membranes since fabrication and testing of membranes from new materials require a large amount of time and resources. The purpose of this thesis is to predict the macroscopic flux of multi-component gas mixtures through MOF-based membranes with information obtained from detailed atomistic simulations. First, atomically detailed simulations of gas adsorption and diffusion in MOFs combined with a continuum description of a membrane are introduced to predict the performance of MOF membranes. These results are compared with the only available experimental data for a MOF membrane. An efficient approximate method based on limited information from molecular simulations to accelerate the modeling of MOF membranes is then introduced. The accuracy and computational efficiency of different modeling approaches are discussed. A robust screening strategy is proposed to screen numerous MOF materials to identify the ones with the high membrane selectivity and to direct experimental efforts to the most promising of many possible MOF materials. This study provides the first predictions of any kind about the potential of MOFs as membranes and demonstrates that using molecular modeling for this purpose can be a useful means of identifying the phenomena that control the performance of MOFs as membranes.
2009 By Seda Keskin

This book describes the tremendous progress that has been made in the development of gas separation membranes based both on inorganic and polymeric materials.

Author: Ahmad Fauzi Ismail

Publisher: Springer

ISBN: 9783319010953

Category: Science

Page: 331

View: 345

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This book describes the tremendous progress that has been made in the development of gas separation membranes based both on inorganic and polymeric materials. Materials discussed include polymer inclusion membranes (PIMs), metal organic frameworks (MOFs), carbon based materials, zeolites, as well as other materials, and mixed matrix membranes (MMMs) in which the above novel materials are incorporated. This broad survey of gas membranes covers material, theory, modeling, preparation, characterization (for example, by AFM, IR, XRD, ESR, Positron annihilation spectroscopy), tailoring of membranes, membrane module and system design, and applications. The book is concluded with some perspectives about the future direction of the field.
2015-04-28 By Ahmad Fauzi Ismail

This book gives comprehensive information on the design, preparation and application of organic-inorganic composite membranes that are used for molecular separation.

Author: Jin Wanqin

Publisher: World Scientific

ISBN: 9781786342935

Category: Technology & Engineering

Page: 312

View: 258

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This book gives comprehensive information on the design, preparation and application of organic-inorganic composite membranes that are used for molecular separation. Various membrane types with different materials are highlighted, including polymer/ceramic composite membranes, mixed matrix membranes, metal-organic frameworks membranes and graphene-based membranes. Physical and chemical properties, morphologies, interfacial behaviors, transport characteristics and separation performance of the organic-inorganic composite membranes are thoroughly discussed based on advanced characterization techniques. Meanwhile, the book contains several typical applications of the membranes in fields such as bio-fuels production, organic compounds recovery, solvent dehydration, carbon dioxide capture and others. In addition, large-scale production and industrial implementation of the organic-inorganic composite membranes are briefly introduced. Contents: IntroductionPrinciples of Pervaporation and Gas Separation in Membrane ProcessPolymer/Ceramic Composite MembranesMetal-Organic Frameworks MembranesGraphene-Based MembranesMixed Matrix MembranesNovel Characterization TechniquesScale-Up Fabrication and Industrial ApplicationConclusion and Prospective Readership: Researchers, academics, professionals and graduate students in chemical engineering, materials engineering, surface chemistry, new materials and polymers. Keywords: Organic-Inorganic Membrane;Pervaporation;Gas Separation;Mixed Matrix Membrane;Graphene Membrane;MOF MembraneReview:0
2017-09-27 By Jin Wanqin

From the Contents: - Design of Porous Coordination Polymers/Metal-Organic Frameworks: Past, Present and Future - Design of Functional Metal-Organic Frameworks by Post-Synthetic Modification - Thermodynamic Methods for Prediction of Gas ...

Author: David Farrusseng

Publisher: John Wiley & Sons

ISBN: 9783527328703

Category: Science

Page: 414

View: 588

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An international and interdisciplinary team of leading experts from both academia and industry report on the wide range of hot applications for MOFs, discussing both the advantages and limits of the material. The resulting overview covers everything from catalysis, H2 and CH4 storage and gas purification to drug delivery and sensors. From the Contents: - Design of Porous Coordination Polymers/Metal-Organic Frameworks: Past, Present and Future - Design of Functional Metal-Organic Frameworks by Post-Synthetic Modification - Thermodynamic Methods for Prediction of Gas Separation in Flexible Frameworks - Separation and purification of gases by MOFs - Opportunities for MOFs in CO2 capture from flue gases, natural gas and syngas by adsorption - Manufacture of MOF thin films on structured supports for separation and catalysis - Research status of Metal-Organic Frameworks for on-board cryo-adsorptive hydrogen storage applications - Separation of xylene isomers - Metal-Organic Frameworks as Catalysts for Organic Reactions - Biomedical applications of Metal Organic Frameworks - Metal Organic Frameworks for Biomedical Imaging - Luminescent Metal-Organic Frameworks - Deposition of thin films for sensor applications - Industrial MOF Synthesis - MOF shaping and immobilisation A must-have for every scientist in the field.
2011-08-29 By David Farrusseng

It is anticipated that this work could serve as a model for the rational design of zeolitic imidazolate framework membranes for other important relevant molecular gas separations, such as hydrogen purification from synthesis gas.

Author: Surendar Reddy Venna

Publisher:

ISBN: OCLC:750182259

Category: Carbon dioxide

Page: 312

View: 202

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The separation of C02 from light gases is a very important environmental and energy issue. The state-of-the-art process for the purification of C02 uses amine adsorption, which is a complex, and costly. Membrane technology is far less expensive and requires less energy consumption. Although polymeric membranes can separate CO2, high pressures plasticize them and decrease their separation ability considerably. Zeolite membranes have significant advantages over traditional polymeric membranes, such as high thermal, mechanical, and chemical stability. Furthermore, the development of superior performance membranes for gas mixture separations requires novel materials with fundamentally different structural, adsorption and transport properties than those of polymers and zeolites. In this respect, zeolitic imidazolate frameworks (ZIFs) a subclass of metal organic frameworks, have emerged as a novel crystalline porous materials which combine highly desirable properties, such as uniform pores and exceptional thermal and chemical stability, making them ideal candidates for molecular separations. This work demonstrates the development of continuous zeolite (SAPO-34) and metal organic framework (ZIF-8) membranes able to separate C02 from CH4 and N2. The membranes were prepared on tubular porous supports by secondary seeded growth. Therefore, first we focused on the synthesis of small homogeneous crystals (both SAPO-34 and ZIF -8) with high surface area and used as "seeds" for membrane nucleation and growth. Crystal growth inhibitors, and microwave heating were used to prepare SAPO-34 seeds (~ 0.5 m). Solvothermal synthesis was employed to prepare ZIF-8 seeds displaying (~ 50 m). The entire process from gel formation, nucleation, crystallization and growth of ZIF -8 at room temperature was followed. The resultant SAPO-34 membranes were functionalized with organic amino cations to promote CO2 preferential adsorption and evaluated for the separation of Co2/CH4 and Co2/N2 gas mixtures. CO2/CH4 selectivities as high as 245 with CO2 permeances of ~5 x10-7 mol/m2 s Pa at 295K and 138 KPa were observed. To our best knowledge, our SAPO-34 membranes display one of the best (if not the best) overall separation performance for the separation of CO2/CH4 gas mixtures. Moreover, we demonstrate the successful synthesis of novel ZIF-8 membranes for CO2/CH4 gas separation. This work represents one of the first examples (and the only example on CO2/CH4 separation) of the successful preparation of continuous, thin, and reproducible zeolitic imidazolate framework membranes for a functional gas mixture separation. Our ZIF-8 membranes displayed unprecedented high CO2 permeances up to ~ 2.4 X 10-5 mol/m2·s·Pa and CO2/CH4 selectivities from ~4 to 7. The central intellectual thrust of this work is the rational design of SAPO-34 and ZIF-8 membranes, which offer the possibility of demonstrating high separation performance for CO2 purification from light gases, and other functional gas separations. The specific research objectives are: 1. Rational design of small SAPO-34 and ZIF-8 crystals, displaying narrow size distribution and enhanced CO2 sorption properties. 2. Development of continuous SAPO-34 and ZIF-8 membranes for CO2/ CH4 and CO2/N2 gas separations. 3. Elucidate and understand the basic information mechanisms governing the transformation of precursor solutions into ZIF phases. 4. Establish the fundamental structure/separation relationships of SAPO-34 and ZIF-8 membranes in relevant functional gas separations such as CO2/ CH4 and CO2/N2. This work represents an important advance in the rational design of zeolite and metal organic framework membranes and in basic fundamental understanding of its structure/separation relationships. In particular, the proposed research has practical implications in energy and environmental issues, which are areas of great societal importance. For the targeted applications of carbon dioxide purification from methane and nitrogen, the proposed work may have an important economic impact in reducing considerably the separation costs associated to natural gas pretreatment, and reduction of greenhouse gases emissions respectively. It is anticipated that this work could serve as a model for the rational design of zeolitic imidazolate framework membranes for other important relevant molecular gas separations, such as hydrogen purification from synthesis gas.

Focusing on applications in separation, adsorption and catalysis, this handbook underlines the importance of this hot and exciting topic.

Author: Hermenegildo García

Publisher: John Wiley & Sons

ISBN: 9783527343133

Category: Science

Page: 536

View: 115

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The Stability of Metal-Organic Frameworks Tuning the Properties of Metal-Organic Frameworks by Post-synthetic Modification Synthesis of MOFs at the Industrial Scale From Layered MOFs to Structuring at the Meso-/Macroscopic Scale Application of Metal-Organic Frameworks (MOFs) for CO2 Separation Current Status of Porous Metal-Organic Frameworks for Methane Storage MOFs for the Capture and Degradation of Chemical Warfare Agents Membranes Based on MOFs Composites of Metal-Organic Frameworks (MOFs): Synthesis and Applications in Separation and Catalysis Tuning of Metal-Organic Frameworks by Pre- and Post-synthetic Functionalization for Catalysis and Separations Role of Defects in Catalysis MOFs as Heterogeneous Catalysts in Liquid Phase Reactions Encapsulated Metallic Nanoparticles in Metal-Organic Frameworks: Toward Their Use in Catalysis MOFs as Supports of Enzymes in Biocatalysis MOFs as Photocatalysts
2018-05-14 By Hermenegildo García

This book documents the latest research progress in MOF/COF-polymer hybrid materials and reviews and summarises hybridization strategies to achieve MOF/COF polymeric composites.

Author: Bo Wang

Publisher: Royal Society of Chemistry

ISBN: 9781839163463

Category: Technology & Engineering

Page: 392

View: 577

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Metal–organic frameworks (MOFs) are crystalline porous materials constructed from metal ions/clusters and organic linkers, combining the merits of both organic and inorganic components. Due to high porosity, rich functionalities, well-defined open channels and diverse structures, MOFs show great potentials in field such as gas storage and separation, catalysis, and sensing. Combining them with polymers tunes their chemical, mechanical, electrical and optical properties, and endows MOFs with processability. Covalent organic frameworks (COFs) are crystalline porous materials built from organic molecular units with diverse structures and applications. Hybrid materials with intriguing properties can be achieved by appropriate preparation methods and careful selection of MOFs/COFs and polymers, broadening their potential applications. This book documents the latest research progress in MOF/COF-polymer hybrid materials and reviews and summarises hybridization strategies to achieve MOF/COF polymeric composites. It also introduces various applications and potential applicable scenarios of hybrid MOF/COF polymers. Hybrid Metal–Organic Framework and Covalent Organic Framework Polymers offers an overview to readers who are new to this field, and will appeal to graduate students and researchers working on porous materials, polymers, hybrid materials, and supramolecular chemistry.
2021-11-19 By Bo Wang