×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

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!
  • Students Click Here

*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

Jobs

Water in desulphurised LGO product

Water in desulphurised LGO product

Water in desulphurised LGO product

(OP)
We have been encountering problems with excessive water content of desulphurised LGO product from an HDS unit. After feed switch or after start of LCO addition to the LGO feed, we would experience formation of an emulsion in the HDS unit product. Attempting to resolve this problem by changing stripper operating parameters does not help. However, the problem goes away after 1-2 days of operation. The unit is equiped with a coalescer. Stripping is done by steam. Normal water content is around 200 wtppm, but during the upset it ranges from 500 - >1000 wtppm.
Please help, with any suggestions.

Kreso

RE: Water in desulphurised LGO product

Hi Krešo,

For steam stripped diesel usual water content is in a range 500-1200ppm. You can easily check this if you take samples from CDU.
Although you didn't mentioned for coalescer position, I suppose, your coalescer is on diesel product line downstream  of stripper and you take samples downstream of coalescer.
If this is true you should check is your coalescer working properly. Personally I don't have experience with coalescers.

Regards,

Milutin,

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!


Resources