NGL's & LNG Processing

[askinner87]

Hello Everyone,

I'm working with a peice of software that creates a bottom up estimate for a LNG Regasification Terminal. That software gives me the option to process the LNG (Remove NGLs & LPGs). I'm just curious when a terminal recieves a shipment of LNG, what components are in this gas? From previous research I thought NGLs and LPGs were removed prior to Liquefaction? Would I need to remove these items again, during regasification?

Thoughts?

 

[rmw]

Gassification is normally done in the 'as produced' state (my term, not some industry term.) Anything in it, liquids, etc., have to be processed out of it prior to it being sold as pipeline grade gas.

rmw

 

[dlcgama]

Hi askinner87!

Usually we just liquified an specified natural gas wich means that you dont need to reprocess. But if your LNG is "as produced" like rmw said definetely you gonna have to pass through a natural gas process unit.

In short, its necessary that you put the properties and composition of the feed stream available to the users inserts their data.

 

[turb1]

It depends on where your tanker load of LNG comes from (geographically). In the older LNG plants (Indonesia), there is a higher concentration of C2+, in the newer plants (Qatar) they have significant upstream treating and the C2+ content is low. There are of coarse other sources besides these and they vary more or less in-between these two as extremes.

There are a couple of facilities in the world that have the ability to do the gasification and LPG/NGL treating in one plant (and I think there are three processes that have been designed specifically for this).