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Micro process engineering is the science o … Micro process engineering is the science of conducting chemical orphysical processes (unit operations) inside small volumina,typically inside channels with diameters of less than 1 mm(microchannels) or other structures with sub-millimeter dimensions. These processes are usually carried out in continuousflow mode, as opposed to batch production, allowing a throughputhigh enough to make micro process engineering a tool for chemicalproduction. Micro process engineering is therefore not to be confusedwith microchemistry, which deals with very small overall quantities ofmatter. The subfield of micro process engineering that deals with chemicalreactions, carried out in microstructured reactors or"microreactors", is also known asmicroreaction technology. The unique advantages of microstructured reactors or microreactors are enhanced heat transfer due to the large surface area-to-volume ratio, and enhancedmass transfer. For example, the length scale of diffusionprocesses is comparable to that of microchannels or even shorter, and efficient mixingof reactants can be achieved during very short times (typicallymilliseconds). The good heat transfer properties allow a precisetemperature control of reactions. For example, highly exothermic reactions can be conducted almost isothermally when themicrostructured reactor contains a second set of microchannels ("coolingpassage"), fluidically separated from the reaction channels ("reactionpassage"), through which a flow of cold fluid with sufficiently highheat capacity is maintained. It is also possible to change the temperature ofmicrostructured reactors very rapidly to intentionally achieve a non-isothermal behaviour.onally achieve a non-isothermal behaviour.
, Mikroverfahrenstechnik (englisch micro pro … Mikroverfahrenstechnik (englisch micro process engineering) ist die Wissenschaft von chemischen und/oder physikalischen Prozessen, die sich innerhalb kleiner Volumina, typischerweise in Kanälen mit Durchmessern von unter 1 mm (Mikrokanälen) abspielen (Siehe Mikrofluidik). Die Prozesse laufen dabei typischerweise im (im Gegensatz zum Batchbetrieb) und in einem Durchsatzbereich (Stoffmenge pro Zeitspanne) ab, der die Mikroverfahrenstechnik für die industrielle Produktion relevant werden lässt. Mikroverfahrenstechnik grenzt sich somit von der Mikrochemie ab, bei der Reaktionen bzw. die Analyse („Mikroanalyse“) von insgesamt nur kleinen Stoffmengen betrachtet werden. Die besonderen Vorzüge von mikrostrukturierten gegenüber konventionellen Reaktoren sind verbesserter Wärmeübergang durch das größere Verhältnis von Oberfläche zu Volumen sowie verbesserter Stoffübergang. Volumen sowie verbesserter Stoffübergang.
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Micro process engineering is the science o … Micro process engineering is the science of conducting chemical orphysical processes (unit operations) inside small volumina,typically inside channels with diameters of less than 1 mm(microchannels) or other structures with sub-millimeter dimensions. These processes are usually carried out in continuousflow mode, as opposed to batch production, allowing a throughputhigh enough to make micro process engineering a tool for chemicalproduction. Micro process engineering is therefore not to be confusedwith microchemistry, which deals with very small overall quantities ofmatter.th very small overall quantities ofmatter.
, Mikroverfahrenstechnik (englisch micro pro … Mikroverfahrenstechnik (englisch micro process engineering) ist die Wissenschaft von chemischen und/oder physikalischen Prozessen, die sich innerhalb kleiner Volumina, typischerweise in Kanälen mit Durchmessern von unter 1 mm (Mikrokanälen) abspielen (Siehe Mikrofluidik). Die Prozesse laufen dabei typischerweise im (im Gegensatz zum Batchbetrieb) und in einem Durchsatzbereich (Stoffmenge pro Zeitspanne) ab, der die Mikroverfahrenstechnik für die industrielle Produktion relevant werden lässt. Mikroverfahrenstechnik grenzt sich somit von der Mikrochemie ab, bei der Reaktionen bzw. die Analyse („Mikroanalyse“) von insgesamt nur kleinen Stoffmengen betrachtet werden.nur kleinen Stoffmengen betrachtet werden.
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Micro process engineering
, Mikroverfahrenstechnik
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