Microstructured reactors for catalytic reactions
نویسندگان
چکیده
This review addresses the catalytic reactions performed in microstructured reactors, which are more and more recognized in recent years as a novel approach for chemistry and chemical process industry. They are particularly suited for highly exothermic and fast reactions allowing temperature control and isothermal operation. A brief evaluation of the advantages for gas-phase, liquid-phase, and gas–liquid–solid reactions carried out in miniaturized devices is discussed. Alternative designs to achieve microstructured fluid patterns, besides microfabrication, are also described. # 2005 Elsevier B.V. All rights reserved.
منابع مشابه
Closed Pt nanowire arrays as nanostructured microreactors for catalysis
In recent years, the advantages of microstructured devices for chemical reactions have been demonstrated most impressively. The application of microstructured reactors has gained significant importance in chemical synthesis and analysis [1]. The spectrum of chemical conversions, carried out successfully in microstructured reactors, includes many catalytic reactions. Supportless onedimensional n...
متن کاملCharacterisation and catalytic testing of VOx/Al2O3 catalysts for microstructured reactors
With regard to the application in a microstructured reactor, a special VOx/Al2O3 catalyst powder (3 μm) was prepared and characterised by BET, XRD, UV/Vis DRS, and Raman spectroscopy. The higher the vanadium content, the higher the degree of polymerisation of the vanadium species on the support surface and the lower the BET surface area. Pelletised powders were tested in conventional tubular re...
متن کاملNovel design of a microstructured reactor allowing fast temperature oscillations
Two types of stainless steel microstructured reactors for catalytic gas-phase reactions have been developed and characterized with respect to heir thermal behaviour under non-stationary temperature conditions. One of the reactors used (FTC-I) allowed periodic temperature changes up to 00 K with a frequency of 0.05 Hz. However, a broad temperature gradient of 80 K developed inside the reactor. A...
متن کاملCatalytic liquid marbles: Ag nanowire-based miniature reactors for highly efficient degradation of methylene blue.
Ag nanowire-based catalytic liquid marbles are fabricated as miniature reactors, which demonstrate highly efficient, support-free and rate-controllable heterogeneous degradation of methylene blue, with catalytic efficiency close to 100%. Our miniature catalytic liquid marbles are essential for reactions involving highly toxic/hazardous or costly reactants, where small volume preliminary reactio...
متن کاملImprovement of Hydrodynamics Performance of Naphtha Catalytic Reforming Reactors Using CFD
Due to high applicability of the fixed bed catalytic naphtha reforming reactors, hydrodynamic features of this kind of reactors with radial flow pattern are improved in this work by utilising computational fluid dynamics technique. Effects of catalytic bed porosity, inlet flow rate and flow regime through the bed on the flow distribution within the system are investigated.It is found that t...
متن کامل