The presence state of ammonia in the high-pressure condenser for urea synthesis
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Gentlemen, the ammonia in the high-pressure condenser for urea synthesis should be in gaseous state, right? After all, the operating temperature is several dozen degrees above ammonia’s critical temperature, isn’t that correct?
In the high-pressure condenser, ammonia exists in a gas-liquid two-phase state; due to the presence of water and carbon in the liquid phase, methylamine is formed.
The operating temperature has exceeded the critical temperature of ammonia; can liquid ammonia still exist?
Some ammonia dissolves in water, so it is not pure ammonia.
It is recommended to read the book \"Urea\".
It’s the book written by Teacher Yuan Yi, right? Thank you so much!
I have a question: Why does the liquid in the high-pressure amine scrubber need to be sent to the high-pressure condenser via an ejector? Can’t it simply be pumped directly into the synthesis tower?
Improve the condensation efficiency of the high-pressure ammonium methanate condenser to recover more heat
Moreover, the high-pressure washer operates at a lower pressure than the synthesis tower; high-pressure liquid ammonia is used as the driving force for a ejector to raise the pressure of the ammonium in the washer to that of the ammonium condenser.
Are there any design documents available for the Da Xia urea low-pressure distillation tower?
Sir, what is the concentration of that 1.335 L/t hydrogen peroxide you have? Sir? It is filled in three stages – what is the proportion of each stage? Many thanks