Flare Knockout Drum

Hey Boss,

Here's the deal. I assume you are in Alberta by your question.

Go to ERCB directive 060 page 58/59 and it will answer some of your questions. Then go to API 521 for the rest.

The flare needs to be 50m from storage tanks (flameable liquids/vapours), 50m from wells and 25m from process equip. The knock-out is down near the flare out of the radiation zone of the stack.

If I can find API 521 I will see if I can add more.

I said I would be back.

Ok.....the flare knock-out can be close to the flare stack as long as its outside the flare radiation zone (from engineering) and it has the appropriate overfill protection and flame arrestor. Otherwise it is considered Process equipment and needs to be at least 25m from the flare stack.

All other spacing requirements I mentioned apply. Obviously consult with your piping lead for verification. I personally would be upset as your lead if I listened to some guy on the internet and didn't ask the question to me personally. Just sayin

Thanks guys for the input, unfortunately my lead and engineers are pretty weak where I work at. Thats why I appreciate this forum and all participants.

Thanks again guys.

Thats the other reason I know your in Alberta. It's brutally painful so I can relate.