Dear All
I am in a middle of Commissioning of a old Nitrogen Plant of medium capacity.
The Turbine of this plant is out of order and required cold for Cryogenic Distillation would be provided by injecting external Liquid Nitrogen.
The Liquid supply will happen via the same route through which Distillate (Liquid Nitrogen) produced in Storage Tank.The path has two Globe valves (one angled ,other one straight).
About 75 Nm3/hr of LIN would be required to generate refrigeration.
So on a nutshell the direction of flow through those mentioned valves would be contrary to the original mode.
On asking the original Licenser ,they said reverse flow is possible,while valve vendor says it is not .
We are in a fix now.To change the valve direction,a major modification is required inside cold box,to top of that there is a space constraint.
Asking esteemed forum members to throw some light on the above matter.Is Reverse Flow via globe valve possible?
Regards
Bodhisatya