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


Separator Liquid Loading

Separator Liquid Loading

Separator Liquid Loading

I need help on calculating liquid loading for a horizontal passive filter separator using natural gas as the product medium. natural Gas SG 0.58. Is there any empirical formula that governs such calculation . Any industry standard that help calculate these parameter?

RE: Separator Liquid Loading

What do you refer to by the term "liquid loading"? Water content of H2O-saturated gas? Or the maximum amount of free liquid water that can be handled by unit if surface area of the filter? Or maximum liquid particle size?

Process Engineer, MSChE

RE: Separator Liquid Loading

maximu amount of liquid condensate that can be handled by the equipment.

RE: Separator Liquid Loading

Mark Bothemley with JM Campbell published an excellent 3 part series in the SPE Oil & Gas Facilities Journal in 2013. The first part is here I'm not sure if you have to subscribe to the journal to see their archives (so while the link works for me it may not work for non-SPE members). If the link doesn't work and you are going to be doing much of this then that series is worth the cost of SPE membership. Mark pulled a bunch of data together from a bunch of different courses and did a good job explaining why you would pick one parameter over another (I disagree with his mist pad sizing, but he uses generally accepted practices, I just haven't had much luck using a drag model in an impingement environment).

David Simpson, PE
MuleShoe Engineering

In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. Galileo Galilei, Italian Physicist

RE: Separator Liquid Loading

For filter separators, GPSA quotes that maximum liquid loading ranges from 0.17 to 0.35 m3/h per m2 of filtration surface. This is the only figure I have ever come across. Design of these devices is usually proprietary so I would hesitate to accept any figure as the definite one - manufacturer has the final word and it better be supported with live references.

One common thing for all filter separators is that they require removal of bulk liquid upstream of the filter elements. I had an opportunity to witness how malfunctioning of a dramatically undersized vertical wiremesh separator upstream virtually cancels out performance of the downstream filter separator. Slugs of liquid water were literally passing through the filter elements.

Process Engineer, MSChE

RE: Separator Liquid Loading

Thanks Dejan for those numbers and thank you David for the reference, the link did work.

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!


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