What is Liquefied Petroleum Gas (LPG) ?
Liquefied Petroleum Gas (LPG) is colourless, odourless liquid which readily evaporates into a gas. Normally odour is added to it to help detect leakage. This is a combination of Propane (chemical formula C3H8) and Butane (chemical formula C4H10), either stored separately or together as a mix. When blend together, it becomes flammable hydrocarbon gas which can be used in various application such as for cooking, heating, alternate to vehicle fuel,etc. It is one of the cleaner & cheaper fuel available today.
Properties of LPG:
- Odourless. (But for detection of leakage it is normal to odorize LPG by adding an odorant prior to supplying it to the user).
- Highly Flammable.
- Heavier than air.
- Half the weight of water (approx.).
- Non toxic but can cause asphyxiation.
- LPG expands upon release and 1 liter of liquid will form approximately 250 liters of Vapor.
|Relative density of liquid at 15 C||0,57 to 0,58||0,50 to 0,51|
|Imperial gallons/ton at 15 C||385 to 393||439 to 448|
|Liter/tonne at 15 C||1 723 to 1 760||1 965 to 2 019|
|Relative density of gas compared with air at 15 C and 1 013,25 mbar||1,90 to 2,10||1,40 to 1,55|
|Volume of gas (liters) per kg of liquid at 15 C and 1 013,25 mbar||406 to 431||537 to 543|
|Volume of gas (ft3) per lb of liquid at 60ƒ F and 30 in Hg||6,5 to 6,9||8,5 to 8,7|
|Boiling point at atmospheric pressure C approx.||-2||-45|
|Vapour pressure for products at their maximum specified Vapour pressure (gauge): Vapour pressure for products at their maximum specifiere Temp. C -40 -18 0 15 38 45||Bar – * 0,9 1,93 4,83 5,86||Bar 0,5 2,3 4,5 6,9 14,5 17,6|
|Latent heat of vaporization (kJ/kg) at 15 C||372,2||358,2|
|Latent heat of vaporization (Btu/lb) at 60ƒ F||160||154|
|Specific heat of liquid at 15 C (kJ/kg C)||2,386||2,512|
|Sulphur content per cent weight||Negligible to 0,02||Negligible to 0,02|
|Limits of flammability (percentage by volume of gas in a gas-air mixture to form a combustible mixture)||Upper 9,0 Lower 1,8||Upper 10,0 Lower 2,2|
|Calorific Values: Gross: (MJ/m3) dry (Btu/ft3) dry (MJ/kg) (Btu/lb) Net: (MJ/m3) dry (Btu/ft3) dry (MJ/kg) (Btu/lb)||121,8 3 270 49,3 21 200112,9 3 030 45,8 19 700||93,1 2 500 50,0 21 50086,1 2 310 46,3 19 900|
|Air required for combustion (m3 to burn 1 m3 of gas)||30||24|
We at Eastern Gases Ltd, believe in providing Quality based LPG.
Back to homepage