Methylamine/DMF parameter issue
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I have a question regarding the process: in the methylamine/DMF unit, a shell-and-tube heat exchanger is used to cool 90.01% ammonia, 0.9% monomethylamine, 0.09% dimethylamine, and 9% trimethylamine using water at 32 degrees Celsius; the temperature of the cooled water is 39 degrees Celsius. The inlet and outlet temperatures of the azeotrope at the top of the tower are 41.6 degrees Celsius and 41.13 degrees Celsius respectively. Why is the temperature difference so small?
This post was last edited by slayerstar on 2011-1-19 at 10:51: saturation temperature plus a certain degree of supercooling
This post was last edited by Momo on 2010-9-7 13:31. For horizontal installations, how should the corrosion margin be determined? The temperatures and pressures for the other materials are as follows: T=82 degrees, P=1.2 MPA; T=56 degrees, P=1.0 MPA; T=51 degrees, P=1.0 MPA; T=92 degrees, P=0.6 MPA; T=65 degrees, P=0.4 MPA. The materials are in the shell side and the water side respectively.
Is the material completely condensed? Is there enough cooling water? Is the temperature of the material 9282 degrees? Is that that high?
Is this the condenser of the ammonia stripping tower? It contains a significant amount of ammonia, making it difficult to cool