Q;Nitrogen Calculation Formula

[nael]

Dear friends
I need the calculation formula to calculate the(flow rate value and the volume of nitrogen required to purge
1-Storage tanks
2- Pipelines

thanks for you help

[aseptman]

yes, pl enlight anyone

[ARMOFI]

Just get into WELD SPECIALTY SUPPLY CORP. You will see their xlspread sheet there. Send me mail address if you do not get it. I send the file. I am unable to attach here.

[ARMOFI]

You will find it here.

[link Point to another website Only the registered members can access]
Just cut & paste, you will have the spreadsheet .

[tsrc8204]

Downloaded.

[jpl860iq]

Just get into WELD SPECIALTY SUPPLY CORP. You will see their xlspread sheet there. Send me mail address if you do not get it. I send the file. I am unable to attach here.

Hi Mr ARMOFI

Thank you very much for you sheet for the Nitrogen calculation.

I'm a student and I would like to know what kind of the book or reference you generally use to determinate elemental composition of oil trought correlation. (%C, %H, %S, %O2, %N2, %Metals (Ni, V, Fe)
Generallay I used several correlation of Riazi.
(Riazi, M. R. (2005). Characterization and Properties of Petroleum Fractions. West Conshohocken, Panjeshahi, M. H.).
However this one have several errors and the critical thing I don't found well correlation to N2, O2 and Metals.
So for this reason I need you help. Could you bring me some kind of information about the determination of this elemental composition. You sheet it's already program and I could see the correlation employed for the case of N2.

Another addiotal question that I will like to know it is the table of regulation of elemetal composition to be transport a oil.
What kind of request or law it is necessary to supply for trasport a oil (e.x. %S, %N2, etc)

Finally my mail is: jpl860@gmail.com

Thank so much

[ARMOFI]

Hi,

As far as using of Nitrogen for purging concerned, it depends on the removable of flammable gases inside the pipeline/tank/conduits etc (confined vessel). Particularly , this means Oxygen to a level of 10-12% desirable, the LFL of the content. The level of purging by N2 is dictated by the Client here.(what % oxygen removal required).

Other question I am unable to understand & I think I am not an expert in it. If it is regarding selection of material for oil/liquid transportation, we follow the regulation list 49 CFR Part 192, AppxB. or the selection of materials as per ASME 31.4 / 31.8 or AISI/SAE Classification of metal. Obviously these are API 5L pipes of different schedule & grades.

[josefreitas]

thanks for this spreadsheet very useful

[Afridi]

Thanks for info.

[Roderick]

The file can not be found. Please upload again. Thanks.

[mazharshaikh]

thanx
very uselful

[mazharshaikh]

thanx
very uselful