1 reply to this topic

[alex_3115]

Dear all,

 

I am trying to find out the nitrogen quantity required to be used to inert a non-continuous flare at star-up.

In the standards that i have, like API, i found indications regarding the purge gas used during flare operation, in order to avoid air ingress.

But what about start-up? I should bring the O2 level to 6% also, starting from lets say 21%?

 

The method with system pressurization up to 2-3 barg i think i cannot use it because the system is open to atmosphere.

 

If you have any suggestions i will be very grateful!

 

Thanks!

[fallah]

 

I am trying to find out the nitrogen quantity required to be used to inert a non-continuous flare at star-up.

In the standards that i have, like API, i found indications regarding the purge gas used during flare operation, in order to avoid air ingress.

But what about start-up? I should bring the O2 level to 6% also, starting from lets say 21%?

 

The method with system pressurization up to 2-3 barg i think i cannot use it because the system is open to atmosphere.

 

 

alex,

 

Using continuous flow of nitrogen, the flare network can be swept clear from air/vapors. The required nitrogen quantity might be 2-3 times of total flare network volume. The test for oxygen can be done based on which inertization should be continued till acceptable oxygen content.