Response to dcasto:
First, I would like to say that I was motivated to respond by a possible safety hazard; namely the storage of potentially high vapor pressure NGL in storage bullets designed for a lower pressure LPG product. If you read the questioner response above, he states:
"The facilite...
Let me explain the difference between LPG and NGL while giving a bit of historical perspective. LPG originated as a mixed component stream isolated in a refinery or gas plant which contained primarily propane (C3) and was typically isolated from butane, particularly isobutane in a de-propanizer...
