×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

How to calculate salt content in PTB?

How to calculate salt content in PTB?

How to calculate salt content in PTB?

(OP)
Hi everyone.

Which methods are correct to determine salt content in PTB (pounds per thousand barrel)?

I have done a test to determine the value of Chloride for Crude oil entering Desalter using Mercury Nitrate titration method. The value of Chloride is 10 ppm.

My laboratory method to determine salt content (ptb) is 10 ppm Chloride x 1.65 divide by 2.853 which yield 5.78 ptb.

However, when i check Oilfield Processing of Petroleum - Volume 2 - Manning & Thompson book, the equation use is very different. I need to put BS&W value. The equation is

Assuming BS&W in = 0.5 vol%, SG = 1.02 and Chloride ppm = 10 ppm, therefore the value would be 0.018 ptb.

Which one of these equations are correct to determine salt content in PTB? I your guidance.

RE: How to calculate salt content in PTB?


Without addressing the posted question, since I don't have the M&T book, it is apparent to me that if ppm is given on a weight basis, such as mg/kg, the crude density plays a role. For example, for a density of 0.839 g/L, 1 ptb ≈ 3.4 ppm.

If ppm is given on a weight per volume basis, such as mg/L, then the conversion would be: 1 ptb ≈ 2.85 ppm.

  

RE: How to calculate salt content in PTB?

(OP)
Thanks bro. I need to know first the ppm Chloride that i obtained previously is based on weight or volume basis.
 

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close