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Extrusion von technischen ZSM-5-Kontakten und ihre Anwendung im MTO-Prozess

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ISBN: 9783866444102 Year: Pages: 176 S DOI: 10.5445/KSP/1000012268 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:01:57
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In dieser Arbeit wurden technische Zeolithkatalysatoren (ZSM-5 + Binder) mittels Extrusion hergestellt und im Festbett-MTO-Prozess (Methanol-to-Olefins) getestet. Das Ziel war die Optimierung der Reaktionsbedingungen und des Katalysators, um möglichst hohe Selektivitäten zu Ethen und Propen sowie verbesserte Katalysatorstandzeiten zu erreichen.

Untersuchungen zum MTO-Prozess an AlPO4-gebundenen ZSM-5-Extrudaten und Beschreibung der Reaktionskinetik

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ISBN: 9783866449084 Year: Pages: III, 187 p. DOI: 10.5445/KSP/1000029457 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:58
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Ziel dieser Arbeit war es ein formalkinetisches Reaktionsmodell für den MTO-Prozess an AlPO4-gebundenen ZSM-5-Extrudaten zu erstellen. Dazu wurde eine Prozessstudie unter typischen MTO-Prozessbedingungen durchgeführt sowie ausgewählte Olefine einzeln und zusammen mit Methanol zudosiert. Anhand der experimentellen Daten konnte ein geeignetes Reaktionsnetz abgeleitet und ein Modell der Reaktionskinetik entwickelt werden.

Combining Fischer-Tropsch Synthesis (FTS) and Hydrocarbon Reactions in one Reactor

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ISBN: 9783866443303 Year: Pages: IV, 170 p. DOI: 10.5445/KSP/1000010082 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:02
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The present study addresses the combination of low-temperature Fischer-Tropsch synthesis (FTS) and hydrocarbon modification reactions (hydroprocessing) in one reactor. The objective of the present investigation was to study the influence of CO during hydroprocessing reactions of hydrocarbon model compounds on two different bifunctional catalysts. In addition, the influence of the catalyst-bed configuration for the combination FTS and hydrocarbon reactions was investigated.

Catalytic Processes for The Valorisation of Biomass Derived Molecules

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ISBN: 9783039219148 / 9783039219155 Year: Pages: 114 DOI: 10.3390/books978-3-03921-915-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Physics (General)
Added to DOAB on : 2019-12-09 11:49:16
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In the last decades, inedible lignocellulosic biomasses have attracted significant attention for being abundant resources that are not in competition with agricultural land or food production and, therefore, can be used as starting renewable material for the production of a wide variety of platform chemicals. The three main components of lignocellulosic biomasses are cellulose, hemicellulose and lignin, complex biopolymers that can be converted into a pool of platform molecules including sugars, polyols, alchols, ketons, ethers, acids and aromatics. Various technologies have been explored for their one-pot conversion into chemicals, fuels and materials. However, in order to develop new catalytic processes for the selective production of desired products, a complete understanding of the molecular aspects of the basic chemistry and reactivity of biomass derived molecules is still crucial. This Special Issue reports on recent progress and advances in the catalytic valorization of cellulose, hemicellulose and lignin model molecules promoted by novel heterogeneous systems for the production of energy, fuels and chemicals.

Multiscale and Innovative Kinetic Approaches in Heterogeneous Catalysis

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ISBN: 9783039211791 / 9783039211807 Year: Pages: 214 DOI: 10.3390/books978-3-03921-180-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Kinetics and reactor modeling for heterogeneous catalytic reactions are prominent tools for investigating and understanding catalyst functionalities at nanoscale and the related rates of complex reaction networks. This book illustrates some examples related to the transformation of simple to more complex feedstocks, including different types of reactor designs, i.e., steady-state, transient plug flow reactors, and TAP reactors for which there is sometimes a strong gap in the operating conditions from ultra-high-vacuum to high-pressure conditions. In conjunction, new methodologies have emerged, giving rise to more robust microkinetics models. As exemplified, they include the kinetics and the dynamics of the reactors and span a large range of length and time scales. The objective of this Special Issue is to provide contributions that can illustrate recent advances and novel methodologies for elucidating the kinetics of heterogeneous reactions and the necessary multiscale approach for optimizing the reactor design. This book is dedicated to postgraduate and scientific researchers, and experts in heterogeneous catalysis. It may also serve as a source of original information for the elaboration of lessons on catalysis for Master students.

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