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Heat Output In Formaldehyde Production

reactor heat exothermic reaction turbin

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#1 fonkaren

fonkaren

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Posted 07 August 2021 - 05:55 AM

Formaldehyde will be produced from methanol in the presence of oxygen. Since it is an exothermic reaction, the heat class comes out and the heat consists of the heat pipes and the steam boiler. And this heat is generated by electrically powered steam turbines.
After methanol is evaporated in the evaporator, it is mixed with 11% oxygen in a heat exchanger at a temperature of around 170 degrees. They mix the return gas with the air to bring the oxygen to around 11%. This mixture is then reacted with iron molybdenum catalyst in a fixed bed reactor with 12000 thousand tubes. Because the reaction is exothermic, heat is released. Molten salt is used for the heat transfer process.
 
At this stage, I need to detect the heat released from the reactor. That's because the heat is then used to power the steam turbine. How can I detect this heat?
According to the reaction, 38 kcal of heat is released for 1 mole of formaldehyde.

Edited by fonkaren, 07 August 2021 - 10:39 AM.


#2 Pilesar

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Posted 07 August 2021 - 09:27 AM

I don't speak Turkey, but energy can be calculated by multiplying the mass of the liquid by its specific heat capacity and temperature change. Not all energy is useful due to inefficiencies. If this does not address your question, then I suggest you find a way to translate your question into English. Sometimes I find it helpful to use the online translators from my language to another and then reversed back to my language to make sure the meaning is what I intend. 



#3 fonkaren

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Posted 07 August 2021 - 10:39 AM

I don't speak Turkey, but energy can be calculated by multiplying the mass of the liquid by its specific heat capacity and temperature change. Not all energy is useful due to inefficiencies. If this does not address your question, then I suggest you find a way to translate your question into English. Sometimes I find it helpful to use the online translators from my language to another and then reversed back to my language to make sure the meaning is what I intend. 

sorry i fixed it






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