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Determining Potential Natural Gas Liquids (Ngl) In A Natural Gas Stream




Determining Potential Natural Gas Liquids (Ngl) In A Natural Gas Stream Dear All,

The amount of potentially recoverable NGL based from a natural gas stream can be estimated from the following formula:

Potential NGL component (tons per annum) = V*y*CF
where:
V = Volume flow rate of natural gas, MMSm3/day (Std conditions are P= 1.01325 bara, T = 288.15K)
Note: MM= Million
y = mole percent of the component in natural gas
CF = Component factor (see table below)

Attached Image

Example: 3 MMSCMD of NG is available for processing. This gas contains 5.4% mol propane. What is the potential propane recovery from the NG?

Calculations:
Potential Propane Recovery (w/o Recovery factor and plant on-stream factor) = 3*5.4*6800 = 110160 t/a

Considering a plant recovery factor of 70% and plant on-stream factor of 335 days, the average propane recovery per annum would be:

110160*0.7*(335/365) = 70,770 tons per annum (t/a)

That is all for today. Any comments are welcome.

Regards,
Ankur.




The component factor looks like the density of the gas at standard conditions isn't it ?

The component factor looks like the density of the gas at standard conditions isn't it ?

I don't think so. Not at least in conventional density units such as kg/m3. What I have written is referenced from Shell manual.

 

Regards,

Ankur.

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