Adsorption desorption de composes organiques volatils (COV) sur zeolithes en presence de Champs micro-onde PDF Download
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Author: Esther Alonso López
Publisher:
ISBN:
Category :
Languages : es
Pages : 23
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Author: Esther Alonso López
Publisher:
ISBN:
Category :
Languages : es
Pages : 23
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Author: Marianne Guillemot
Publisher:
ISBN:
Category :
Languages : fr
Pages : 153
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Book Description
Au cours de ce travail nous avons étudié l’adsorption du tétrachloroéthylène (PCE) sur des zéolithes faujasites, en conditions statique et dynamique, en présence et en absence de vapeur d’eau, ainsi que l’oxydation catalytique du PCE sur des catalyseurs à base de zéolithes faujasites dopées ou non avec du platine dans l’objectif de réaliser le couplage adsorption/oxydation catalytique pour l’élimination du tétrachloroéthylène. Nous avons également étudié l’adsorption et l’oxydation seules et en couplage d’une autre molécule de COV, la butan-2-one.
Author: Frédéric Cosnier
Publisher:
ISBN:
Category :
Languages : fr
Pages : 286
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Ce travail de thèse est consacré à l'étude de l'adsorption et de la désorption de l'eau et de composés organiques volatils (COVs) chlorés en mode statique (isothermes d'adsorption) et en mode dynamique (courbes de percée) sur des charbons actifs (CAs) de diverses natures (CAs granulaires et fibres de carbone activées). Le but visé est la séparation des constituants d'un mélange de COVs chlorés sur lit fixe de CA en présence ou non de vapeur d'eau. Nous avons montré que la texture poreuse et la chimie de surface des matériaux ainsi que les caractéristiques physico-chimique des sondes ont un rôle prépondérant sur leurs mécanismes et leurs cinétiques d'adsorption (ou de désorption). Une attention particulière a été portée sur l'influence de la présence d'humidité : aux forts taux d'humidité relative, les propriétés d'adsorption (capacité et cinétique) des CAs vis à vis des COVs sont considérablement affectées. La séparation du couple dichlorométhane/trichloroéthylène est très satisfaisante quelles soient les conditions expérimentales. Enfin, une étude exploratoire sur les possibilités d'hydrophobisation des CAs par greffage de groupements apolaires en phase liquide a été entreprise pour limiter les effets de la présence d'eau.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: Thomas Dittrich
Publisher: World Scientific
ISBN: 1786347679
Category : Science
Languages : en
Pages : 318
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Book Description
Surface photovoltage (SPV) techniques provide information about photoactive materials with respect to charge separation in space. This book aims to share experience in measuring and analyzing SPV signals and addresses researchers and developers interested in learning more about and in applying SPV methods. For this purpose, basics about processes in photoactive materials and principles of SPV measurements are combined with examples from research and development over the last two decades.SPV measurements with Kelvin probes, fixed capacitors, electron beams and photoelectrons are explained. Details are given for continuous, modulated and transient SPV spectroscopy. Simulation principles of SPV signals by random walks are introduced and applied for small systems. Application examples are selected for the characterization of silicon surfaces, gallium arsenide layers, electronic states in colloidal quantum dots, transport phenomena in metal oxides and local charge separation across photocatalytic active crystallites.
Author: Jeffrey L. Star
Publisher: Cambridge University Press
ISBN: 0521440327
Category : Science
Languages : en
Pages : 250
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Book Description
Applications of remote sensing and geographic information systems to resource management and environmental research.
Author: Yannick Guari
Publisher:
ISBN: 9780429653766
Category : MEDICAL
Languages : en
Pages :
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Book Description
Nanochemistry tools aid the design of Prussian blue and its analogue nanoparticles and nanocomposites. The use of such nanomaterials is now widely regarded as an alternative to other inorganic nanomaterials in a variety of scientific applications. This book, after addressing Prussian blue and its analogues in a historical context and their numerous applications over time, compiles and details the latest cutting-edge scientific research on these nanomaterials. It compiles and deatils the latest cutting-edge scientific research on these nanomaterials. The book provides an overview of the methodological concepts of the nanoscale synthesis of Prussian blue and its analogues, as well as the study and understanding of their properties and of the extent and diversity of application fields in relation to the major societal challenges of the 21st century on energy, environment, and health.
Author: I. Bezverkhyy
Publisher:
ISBN: 9783037853979
Category : Diffusion
Languages : en
Pages : 0
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Book Description
The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools.Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.
Author: Tony Binns
Publisher:
ISBN:
Category : History
Languages : en
Pages : 298
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Book Description
A series of case studies revealing how the indigenous people of Africa are coping with the local environment by using a number of methods such as soil conservation, diversification, pastoral systems, irrigation projects and innovative crop-growing strategies.
Author: Universidade de Coimbra
Publisher:
ISBN: 9789892021577
Category : Fire weather
Languages : en
Pages : 355
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