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Partial oxidation of Raffinate II and other mixtures of n-Butane and n-Butenes to maleic anhydride in a fixed-bed reactor

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ISBN: 9783866441996 Year: Pages: VI, 186 p. DOI: 10.5445/KSP/1000007336 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemical Engineering
Added to DOAB on : 2019-07-30 20:02:01
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Abstract

The utilisation of the C4 streams of steamcrackers by converting raffinate II to maleic anhydride was studied. The oxidation reactions were investigated in a laboratory-scale fixed-bed reactor to determine reaction kinetics. The effects of pore diffusional resistance were investigated and explained. A two-dimensional pseudo-homogeneous reactor model was used for the simulation of a production-scale fixed-bed reactor. A flow scheme of the reactor section including a recycle was proposed.

Thermochemistry and Kinetics for the Oxidative Degradation of Dibenzofuran and Precursors

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ISBN: 9783866440852 Year: Pages: VIII, 219 p. DOI: 10.5445/KSP/1000005428 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Chemistry (General)
Added to DOAB on : 2019-07-30 20:01:57
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The emission of dibenzofurans and dioxins from industrial processes is a major environmental concern. Focussing on dibenzofuran, this study tend to improve our understanding of the general oxidation chemistry and to provide a mechanism suitable for future modelling studies.Based on quantum chemical methods, energies, chemical structures and reactions are calculated numerically. Not only stable molecules and radicals, but also transition states are reported in this work.

Photonic crystal slabs for low-cost biosensors

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ISBN: 9783866445598 Year: Pages: VI, 165 p. DOI: 10.5445/KSP/1000019644 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:57
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Abstract

Biosensors are devices that utilize biological recognition elements to selectively detect and analyze specific biological and chemical analyte substances. In this work a technology platform for label-free optical biosensors based on surface-functionalized photonic crystal slabs is proposed. Using this technology platform, low-cost solutions for three biotechnical questions are presented.

Prozessentwicklung zur Gewinnung von Oxymethylenethern (OME) aus Methanol und Formaldehyd

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ISBN: 9783731506690 Year: Pages: XX, 255 p. DOI: 10.5445/KSP/1000069417 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:02:02
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Abstract

The present work covers fundamental issues such as OME synthesis and properties up to process development and optimization for oxymethylene ethers (OME) production. This innovative diesel fuel can be produced from renewable raw materials. Compared to conventional diesel, OME leads to a significant reduction of nitrogen oxides and soot formation.

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