Liquefied Petroleum Gas (LPG)

LPG will be delivered as single-phase pressurized liquid products and will meet the quality requirements as defined in the table below. For the loading operation, the propane and butane products are delivered via the loading arms onto the LPG ships at approximate temperatures of – 42°C and 6°C respectively. The exact loading temperature will be a function of the loading conditions and product composition and may vary slightly.

Typical cargo volume: 45,000 MT
Standard Propane/Butane ratio: 75%/25% or 50%/50%
PDF specification: LPG

 
PROPANE SPECIFICATION TEST METHOD
Methane content 10 ppmv maximum ASTM D2163
Ethane content 2.0 liqvol% maximum ASTM D2163
Propane content 95.0 liqvol% minimum ASTM D2163
Butanes content 3.0 liqvol% maximum ASTM D2163
Pentanes + content 15 ppmv maximum ASTM D2163
Olefins content 0.05 wt% maximum ASTM D2163
Vapor pressure 200 psig max at 1000F ASTM D1267
Corrosion (copper strip) 1 maximum ASTM D1838
Total sulfur 15 ppmw maximum ASTM D2784
Hydrogen sulfide content negative ASTM D2420
Total oxygenate content 10 ppmw maximum TBD
Water content 10 ppmw maximum ASTM E – 700
Residues
1) Residue number 10 maximum ASTM D2158
2) Oil number Pass test requirements ASTM D2158

 

PROPANE SPECIFICATION TEST METHOD
Methane content 10 ppmv maximum ASTM D2163
Ethane content 10 ppmv maximum ASTM D2163
Propane content 2.0 liqvol% maximum ASTM D2163
Butanes content 97.0 liqvol% minimum ASTM D2163
Pentanes + content 1.0 liqvol% maximum ASTM D2163
Olefins content 0.1 wt% maximum ASTM D2163
Vapor pressure 70 psig max at 1000F ASTM D1267
Corrosion (copper strip) 1 maximum ASTM D1838
Total sulfur 15 ppmw maximum ASTM D2784
Hydrogen sulfide content negative ASTM D2420
Total oxygenate content 10 ppmw maximum TBD
Water content 10 ppmw maximum ASTM E – 700
Residues
1) Residue number 10 maximum ASTM D2158
2) Oil number Pass test requirements ASTM D2158
 

 

Liquefied petroleum gas (LPG) is a flammable material derived from fossil fuel sources, manufactured during the refining of crude oil, or extracted from oil or gas streams as they emerge from the ground.

LPG is the collective name for Propane and Butane, both of which are gaseous hydrocarbon compounds at room temperature, but can readily be liquefied for easy transport or distribution by either chilling or pressurising the gas.

LPG is a versatile global commodity used for residential, transportation and industrial purposes and burns cleanly with no soot and very low sulfur emissions, posing no ground or water pollution hazards.