This process takes clean light crude and performs a prelimin

This process takes clean light crude and performs a preliminary refinement of the crude oil. You are the process engineer in charge of this process. It consists of a splitter distillation column consisting of 100 trays. The crude feed enters at tray 50, and is preheated with a steam shell and tube heat exchanger. The most volatile hydrocarbons (

Solution

in above cruide oil extraction circuit the process has some wrong in the node one area.

So, the objective of this study could be to eliminate or to reduce the probability and consequences of incidence. Remember the catch word here is not an accident. Incident is related to hazard, hazard is a scenario. As long as the hazard or the scenario is not realized into an accident, there is no risk. So, to eliminate or reduce the probability and consequence of incidents in the installation and an operation of a group gathering station. So, this HAZOP study is applied to a GGS at the installation and operation stage itself. I have used a software by name PHA-pro version 7 for preparing the HAZOP worksheet.

after making the HAZOP analysis we found out the list of problems in the circuit are as follows;

1. in the circled area the valve 24 and pump 21 are wronly connected.

2. similarly the pumps connected to the heat exchanger evoperator/condenser is also wrong.

3. we can eliminatet the hazrds by using more attention by giving the safety valve after the pump 17 and 18.