Dear All

how we can calculate PSV load for Following Case in distillation column include (Inlet control valve , Steam Boiler ,Air Cooler, Water trim cooler, Reflux drum and Reflux pump:

1. Air cooler power Failure
2. Total power Failure (Reflux Pump & Air Cooler)
3. Cooling Water Failure
4. Feed Valve Failure (Full Open)
5. Inlet Steam control valve Failure

Please be considering that:

First: this column is in Open art unit and we can simulate it.

Second: this column is in Under License unit & we are not simulating it and we have only PFD, Material Balance, & P&ID.

Regards
Seavil

The answer to your question (pretty general) can form a book. I doubt you will get proper advice on geneal question.