The reaction is exothermic with a value of 500 KJ/mol (2700 KJ/kg). How should the type of reactor be chosen, and is it possible to use external circulation for heat removal?
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The reaction is exothermic with a value of 500 KJ/mol (2700 KJ/kg). How should the type of reactor be chosen, and is it possible to use external circulation for heat removal? The reaction rate and order are unknown.
How can such high reaction heat be removed? I’m a beginner; I hope for a lot of guidance.
This post was last edited by *amingteda on 2016-12-16 13:39. Is this the unit for reaction heat? But from what I know so far, I haven’t encountered any case with such a high reaction heat. Methanol: 92 KJ/MOL, FT: 160 KJ/MOL, methanation: 206 KJ/MOL; these are typical highly exothermic reactions. You should provide an enthalpy of reaction, as well as the total amount of heat released, for everyone to consider.
Whether it can be recycled needs to be considered from many aspects. The heat capacity of the product, whether a low concentration of raw materials has an impact on the reaction, the issue of utilizing the heat of reaction, whether the product can be reused multiple times, and whether side reactions increase
If the reaction takes place in a liquid phase, microchannel reactors could be considered; Corning and Lonza both offer products of this type.
I don’t quite understand how to select a reactor.
This post was last edited by *amingteda on 2016-12-24 13:26. You haven’t answered my question: what kind of reaction can produce such a large amount of heat? If it’s an exothermic reaction, the unit isn’t correct either!
The specific surface area of the microchannels in microreactors is generally between 5,000 and 50,000 m2/m3, whereas in conventional reaction vessels it is around 100 m2/m3, with a few cases reaching 1,000 m2/m3. Micro-channels have a large specific surface area, which enables high heat exchange efficiency; even in cases of intense exothermic reactions, the large amount of heat released instantaneously can be removed promptly, thereby keeping the reaction temperature within a safe range. Due to the small total amount of reactants and rapid heat transfer, it is particularly suitable for studying highly exothermic synthesis reactions in order to avoid the risk of explosion.