The role of balanced hydrogen?
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Our diesel hydrogenation unit does not have a hydrogen balance line after the reaction and before heat exchange with air cooling, whereas the gasoline hydrogenation and diesel isomerization/antifreeze units do have such a line. Why is that?
The compressors used are different, right? One is a centrifugal compressor and the other is a reciprocating compressor
That is the anti-surge line of the centrifugal compressor, which is usually connected before air cooling. Check whether your pump is centrifugal or reciprocating; there are no reciprocating pumps, and for centrifugal pumps, you can find out by checking the PID settings.
It is a pipeline for pre-injecting hydrogen before air cooling, which branches off from the circulating hydrogen. Everyone calls it balanced hydrogen
Isn’t that the reverse flight path? It is taken from the circulating hydrogen outlet and leads to the air cooler, that is, the inlet of the hydrogen circulation pump. How to prevent the cyclic hydrogen compressor from suffering from surge when the inlet flow rate is insufficient?
Is it possible to use an anti-surge line that runs from the compressor outlet to the inlet liquid separation tank?
This post was last edited by Er Dongwen Dake on 2016-10-21 23:48. Same question! Is it because a section of pipeline needs to be cooled? In other words, if the temperature of the hydrogen at the compressor outlet is high and it returns directly to the compressor, will the temperature keep rising through this back-and-forth cycle?
It has nothing to do with temperature; it is there to ensure the inlet flow rate of the centrifugal compressor