×
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

Gas to Liquid Formula

Gas to Liquid Formula

Gas to Liquid Formula

(OP)
Any simple and accurate formula for this?? We are getting 100 MMSCF of gas how much NGL could we recover for that?

RE: Gas to Liquid Formula

As much as is in it , if you get it cold enough.

RE: Gas to Liquid Formula

The answer from Blacksmith37 is exactly correct for the information provided.  There are formulas for converting a gas analysis to component parts, but without a gas analysis then we would have to guess one.  If I guessed CBM, then the answer is "zero".  If I guessed a conventional gas with a 1600 BTU/SCF heating value the answer is "a lot".  

You really can get what is there if you get it cold enough.

David

RE: Gas to Liquid Formula

plus if its wet gas coming from say bakken wells in ND there is free condensate coming with it also

RE: Gas to Liquid Formula

(OP)
thanks guys I haven't got the full lab analysis of gas composition yet. but surely it is a wet gas without any pre treatment

RE: Gas to Liquid Formula

I think that a 10-15% loss for energy required for liquefaction should also be included - unless your condensate can be used for this and/or is a waste product that you cannot sell.

Best regards

Morten

RE: Gas to Liquid Formula

(OP)
Other place I worked with was producing 120 m3/d of condensate for 4 KM3/d of gas during summer with a dew point of 5 deg C.. during winter it can go down to 60 to 80 m3/d

I was trying to have some simple calculation just for estimate basis

RE: Gas to Liquid Formula

Put everything in the gas analysis in terms of mass fraction, then convert the gas flow rate to mass basis.  Take out the mass of Water, Methane, Carbon Dioxide, Nitrogen, Hydrogen Sulphide and other non-condensibles.  The rest ought to be what is available to you to produce liquids.  You would then likely need to adjust for a recovery efficiency, as stated in the above posts.  The remaining consideration is then to determine if you are trying to produce NGL (which has a product specification based on constituent fractions) or stabilized condensate (which has an RVP specification) or both.

Regards,

SNORGY.

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