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Book
Numerische Untersuchung des Wärmeübertragungsverhaltens in unterschiedlichen porösen Medien
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ISBN: 1000042451 3731502526 Year: 2014 Publisher: KIT Scientific Publishing

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Abstract

This presentation deals with simulation studies that will be interpreted as numerical experiments. Porous structures are modelled in three dimensions (microstructure models). Heat transfer and pressure drop of the flow through a porosity is analysed using the numerical solution of the Navier-Stokes equations (CFD). Empirical correlations for simplified calculations are presented that can be used by engineers for rough estimates and design of components with porosities like metal foam.


Book
Characterization and Design of Zeolite Catalysts : Solid Acidity, Shape Selectivity and Loading Properties
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ISBN: 9783642126208 9783642126192 Year: 2010 Publisher: Berlin Heidelberg Springer Berlin Heidelberg

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Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents. Zeolite-based catalysts are used by industrial chemical companies in the interconversion of hydrocarbons and the alkylation of aromatic compounds. The current book deals with the characterization of specific properties of Zeolites and calculations for the design of catalysts. Measurements and utilization of solid acidity, shape selectivity, and loading properties, that are three prominent properties of a Zeolite catalyst, are treated in detail. These features concern chemical vapor deposition of silica, shape selectivity, loading properties, solid activity, Brønsted or Lewis character, ammonia temperature programmed desorption, control of the pore-opening size by chemical vapor deposition of silica and XAFS analysis of metals being highly dispersed inside and outside a framework.

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