Which location is best for injecting water into the reforming pre-hydrogenation mixed feed heat exchanger?
Thread Content
Dear engineers: Our company has newly installed a continuous reforming unit, and we would like to know which location is the best for injecting water into the reforming pre-hydrogenation mixed feed heat exchanger Thank you
The general principle is to add the fluid at a temperature close to the dew point, which allows for the rinsing of ammonium salts while also preventing dew point corrosion. I installed 6 heat exchangers, with water injection at point E in front and point F at the back
It is generally kept around 180 degrees – this is the temperature in the area where ammonium salts crystallize; if the temperature is too high, water tends to vaporize.
The reactor and the feed heat exchanger are located on the tube side line; as for their position, the heat exchanger AF should be placed at the inlet of the CF group. (First set of inlet heat exchangers before the outlet)