Thanx all... we just had an incident with the tank.. had a substantial amount of oil on the roof and concluded that we must be getting gas slugs in the tank which break out and burp liquid onto roof thru available vents. Looking more at the upstream processes now. The tank design is as per API...
Thanks Lhenrique.
Could there be a scenario where the vents on the external floating roof tank are insufficiently sized considering that process temperature has risen about 20F since the tank was first commissioned? How can I crosscheck that?
Thanks again
Would an atmospheric floating roof storage tank (for Crude oil) require PSV? Or would the breather vents be sufficient?
I am wondering if the oil overflow noticed around the breather vents on a floating roof tank in my facility could be due to inadequate venting/over pressure?
Thanks.
