نتایج جستجو برای: microreactor

تعداد نتایج: 712  

Journal: :Molecules 2015
Tobias Illg Annett Knorr Lutz Fritzsche

The synthesis of peroxycarboxylic esters, as one subgroup of organic peroxides, is characterized by a high thermal hazard potential regarding process safety. In case of failure in the production process, e.g., if the heat of reaction cannot be removed sufficiently fast, decomposition reactions can be triggered, and as a result, remarkable amounts of heat and gas can be released and can cause a ...

2003
P. van Male A. van den Berg

This paper describes the heat and mass transfer in a square microchannel that is heated from one side. This microchannel represents a reaction channel in a microreactor that is used to study the kinetics of the catalytic partial oxidation of methane. The microchannel is contained in a silicon wafer and is covered by a thin silicon sheet. At the top side of this sheet, heating elements are prese...

2016
Josef Schachtner Patrick Bayer Axel Jacobi von Wangelin

A home-built microreactor system for light-mediated biphasic gas/liquid reactions was assembled from simple commercial components. This paper describes in full detail the nature and function of the required building elements, the assembly of parts, and the tuning and interdependencies of the most important reactor and reaction parameters. Unlike many commercial thin-film and microchannel reacto...

Journal: :The Review of scientific instruments 2013
Sina Sartipi Harrie Jansma Duco Bosma Bart Boshuizen Michiel Makkee Jorge Gascon Freek Kapteijn

Design and operation of a "six-flow fixed-bed microreactor" setup for Fischer-Tropsch synthesis (FTS) is described. The unit consists of feed and mixing, flow division, reaction, separation, and analysis sections. The reactor system is made of five heating blocks with individual temperature controllers, assuring an identical isothermal zone of at least 10 cm along six fixed-bed microreactor ins...

Journal: :The Review of scientific instruments 2009
Toke R Henriksen Jakob L Olsen Peter Vesborg Ib Chorkendorff Ole Hansen

A novel microfabricated chemical reactor for highly sensitive measurements of catalytic activity and surface kinetics is presented. The reactor is fabricated in a silicon chip and is intended for gas-phase reactions at pressures ranging from 0.1 to 5.0 bar. A high sensitivity is obtained by directing the entire gas flow through the catalyst bed to a mass spectrometer, thus ensuring that nearly ...

2007
U. Kogelschatz

During the last decade a number of microcavity plasma devices have been developed. Examples are microhollow cathode (MHC) discharges and cathode boundary layer (CBL) discharges proposed by Schoenbach, capillary plasma electrode (CPE) discharges proposed by Kunhardt and Becker, and micro-structured electrode arrays (MSEs) introduced by Gericke and Penache. Arrays of microplasmas based on silicon...

Journal: :Journal of Materials Research 2022

Abstract The thermal decomposition of Zr(acac) 4 is studied in a SiC-microreactor on the micro-second time scale. By utilizing synchrotron radiation and photoelectron photoion coincidence spectroscopy, six important zirconium intermediates, as for instance Zr(C 5 H 7 O 2 ) (C 6 ), , are identified gas phase first time. adiabatic ionization thresholds intermediately formed species estimated main...

Journal: :Chemical Engineering Journal 2022

Electrochemical conversion of biomass-derived 5-hydroxymethyl-furfural (HMF) to 2,5-furandicarboxylic acid (FDCA), the building block bio-based plastics, is an attractive process that leverages renewable electrons and carbon resources. The offers potential increase energy cost efficiency by combining mild reaction conditions with high activity selectivity. This study elucidates mechanism kineti...

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