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Question Details
 
Following are the details of the question you selected. You may submit a response to this question or post a new question.
 
Question No.:  5946 Category :  Refining
Date Posted:  12/29/2017
Subject: Column venting
 
Question:
If we are doing venting from column top 2 inch vent, is there any possibility for internal tray damage?

The column pressure is 32 Bar.
Submitted by :
Name:
Company Name:
Location:
EMail:

J G
RIL
Jamnagar, Gujarat, India 
kjdesai47@gmail.com


 

Number of responses : 1
Response 5946-1
Date : 1/3/2018

There is a risk for the tower internals damage during venting (depressurization), especially in super-atmospheric tower with valve trays. Even 2" vent valve (gate, quick-opening) if poorly managed can cause dislodged manway, demister or tray. Sudden vent, excessive Delta P, compounded with stored heat cause rapid vaporization of lights and liquid entrainment. Thus venting should be carried out at a controlled rate that is sufficiently restricted and slow to avoid trays loosening/dislodging.

Name - Milorad Popovic
CompanyName - Process Eng.
Location - Montreal, Canada
Email - milorad.popovic@gmx.com

 




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