#  > Petroleum Industry Zone >  > Petrochemical >  >  >  Nitrogen blanketing

## crisapacastillo

Hello,

 I'm designing a pressure vessel that will contain a thermofluid at 250&ordm;C and 15psig. This thermal fluid cannot be in touch with atmospheric oxygen because it produces the oxidation of the fluid. 

 For this reason it is necessary to design the blanketing system of the tank, using nitrogen as a inert gas. I was wondering if any of you would have information about this type of systems, its desing, and how to calculate the nitrogen presure required for the system.



 Thank you,See More: Nitrogen blanketing

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## ananks3

i assume nitrogen header pressure is 3.5 barg
u can use a self actuated pressure regulator.

for nitrogen requirement: (it is to avoid vacuum due to withdrawal of ur thermo fluid from the vessel), thermal in breathing don't come in play due to high flash and boiling point.

calculate N2 requirement from api 2000. 
N2 has to maintain operating pressure.

hope i have cleared ur doubt

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## Rafael Rods

I will try upload an Excel spreadsheet to calculate it.
 It calculates vacuum set pressure, positive set pressure and air/N2 breathing (in and out)

if you need this urgent, send me an e-mail: rafaelitus@gmail.com and I send you the spreadsheet more quickly.

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## kkhan

Use API-2000. Your problem can be solved. Also gor the official website of PROFLOW and look for a software called PROTETOSEAL. This will really help, I hope.

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## pentek123456

hey Rafael can you please send me the spreadsheet. i am trying to design a best tank blenketing system but i needed some help please provide me with spread sheet.; my email is pratik122@hotmail.com

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## Rafael Rods

Mediafire Link9 (re-up): **[link Point to another website Only the registered members can access]
*link*




<![CDATA[[Only Registered And Activated Users Can See Links]

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## Rafael Rods

File Re up

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## pentek123456

sorry friend but when I try to download it keeps timing out on that file only. I tried with other files and it works fine if you have any other alternate please let me know thanks.

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## ram

Dear Rafael, 

Kindly upload the spreadsheet again.

Regds

Ram

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## aan09

> I will try upload an Excel spreadsheet to calculate it.
>  It calculates vacuum set pressure, positive set pressure and air/N2 breathing (in and out)
> 
> if you need this urgent, send me an e-mail: rafaelitus@gmail.com and I send you the spreadsheet more quickly.



*HI Rafael Rods 
COULD YOU PLEASE RE UPLOAD IT , OR FORWARD TO MY MAIL : aan_09@rediffmail.com
Thanks in Advance*

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## Rafael Rods

Mediafire Link9 (re-up): **[link Point to another website Only the registered members can access]
*link*




<![CDATA[[Only Registered And Activated Users Can See Links]    


or try this one: **[link Point to another website Only the registered members can access]
*link*




<![CDATA[[Only Registered And Activated Users Can See Links]


PS.:I think it is not a problem but.... I did not translate the sheet, so the language is portuguese. In this case, use google to translate to English, it works very fine...

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## Chem.Engineer

i think this file may be useful

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## Eneas

Thank you very much!

See More: Nitrogen blanketing

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