Catalyst heating and reduction reaction heat
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Are copper-based and iron-based catalysts all exothermic reactions when the catalyst is heated and reduced? What is the respective heat of reaction? Please tell me my friends
The catalyst temperature rise I encountered is basically an exothermic reaction, which is the reduction reaction of metal oxide and hydrogen~!
There is a heating and reduction of methanol and ammonia synthesis catalyst. Is there any relevant equation? Best with heat!
Methanol synthesis catalyst is an exothermic reaction； Ammonia synthesis catalyst is an endothermic reaction.
Thank you for your reply! So why do we need to add external heat to the system in both heating and reduction processes? If ammonia synthesis and reduction is endothermic, how does the heat of reaction increase in the middle and later stages? Generally, the electric furnace is turned on to the maximum power when the temperature rises, and the air speed becomes larger in the later stages. In addition, the ammonia reduction reaction absorbs heat, so where does the heat come from? And how to improve it? Please help explain.
Is ammonia synthesis an endothermic reaction? I remember that multiple stages of cooling are required. An important feature of the ammonia synthesis reactor is to consider how to achieve the optimal temperature curve.