Above ground floating -roof tanks for Crude oil
Above ground floating -roof tanks for Crude oil
(OP)
Can you kindly provide me information on the following:
We are planning to build floating roof tanks for strategic storage of crude oil. In this connection, pl let me know:
1.What is the maximum diameter permitted for such tanks?
2.What is the max height to which these tanks can be built?
3.What are the latest regulations regarding tank dykes? If we build double-walled tanks, will there be any change with regard to inter-distance of tanks and the requirement of dykes?
S.G.Subramoney, Dy GM, Central Engg Cell,
Hindustan Petroleum Corp Ltd., Bombay, India
We are planning to build floating roof tanks for strategic storage of crude oil. In this connection, pl let me know:
1.What is the maximum diameter permitted for such tanks?
2.What is the max height to which these tanks can be built?
3.What are the latest regulations regarding tank dykes? If we build double-walled tanks, will there be any change with regard to inter-distance of tanks and the requirement of dykes?
S.G.Subramoney, Dy GM, Central Engg Cell,
Hindustan Petroleum Corp Ltd., Bombay, India





RE: Above ground floating -roof tanks for Crude oil
The size of the tanks is a factor of how much storage you require and the capabilities of the contractor that you will use to construct the tanks.
With respect to secondary containment dykes, the standard in the USA is that they must contain 110% of the volume of the largest tank in the dyked area.
RE: Above ground floating -roof tanks for Crude oil
You should be avare of the fact that this site is "tips" from one engineer to another.
This means that the more specific the question the less "fuzzy" the answer.
A general question will (if it gets any replys at all) ofte just result in a debate like tread.
You should also consider that there is no "QA" or "responsibility" for answers found here.
For a large "real world project" you should contact a professional consultant/vendor/contractor.
Another thing: We really like that people spell out the words and dont use "internet styre" abbrevations such as "pl" etc. It seems a little unproffesional in this forum.
Best regards
Morten
RE: Above ground floating -roof tanks for Crude oil
Does anyone have experience with a similar situation or refer me to someone who does?
Does anyone have any other ideas to;
1. Supress the LEL and create an oxygen deficient environment, and
2. Remove the oil from the top of the roof.
Thanks,
Jerry Nelson
FSS- New Orleans, LA
225-279-0022
nelson.gerard@cleanharbors.com
RE: Above ground floating -roof tanks for Crude oil
sgsuby - there is no "real" limitation to tank size. At some point it may be uneconomical or the steel required may not be available but API gives you methods to calculate the shell thickness for any size and height tank. I've seen over 300 feet diameter - is that not large enough?