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About LPG

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LPG: The fuel of the new Generation

LPG Gaining Popularity

Liquefied Petroleum Gas is fast gaining popularity in industries for a wide variety of uses.

  • For industries today, quality, costs, efficiency, environment, heat controlability, among others, are major concerns when it comes to choosing the right fuel.
  • LPG addresses all these - making it the ideal fuel choice for a host of industrial applications.
  • LPG is a pure, clean energy source which provides even and controllable heat. This makes it the ideal heat and power source for a wide range of industrial uses.
  • Since LPG is almost free from sulphur, it can be used in sensitive situations such as chemical processes, etc.
  • LPG is also used for space and process heating to power industrial ovens, kilns, furnaces, machinary and in food processing units.

HP Gas

HP Gas is a Propane / Butane mixture liquefied under normal ambient temperature and moderate pressures. It is a safe, clean burning, reliable, high calrofic value fuel. In addition to it use as a domestic fuel, it is also widely used in industries, where there is a requirement of low sulphur content fuel and fine temperature controls. HP Gas conforms to IS:4576-1999 specifications.

The Chemical composition of propane is C3H8 and butane, C4H10.

Properties of LPG

  • LPG is twice as heavy as air and half as heavy as water.
  • LPG is colourless and odourless; hence an odorent is used to detect leaks.
  • LPG can be compressed at a ratio of 1:250, which enables it to be marked in portable containers in liquid form.
  • LPG is safe fuel and ignities only within the specified LPG- Air ratio of 2% to 9%.
  • A high calorific value of 11,900 Kcal/Kg results in high efficiency heat output.

Advantage of LPG Compared to other fuels

  • Clean Burning
  • No soot, burners have a longer life - so maintenance is low
  • No spillage as it vaporises at atmospheric temperature and pressure.
  • Effects of corrosion are greatly reduced
  • Instantly controllable flame temperature
  • Avoids scaling and decarborising of parts
  • Environmentally friendly fuel, with minimal sulphur content and sulphur- free emissions
  • Very high efficiency with direct firing system
  • Instant heat for faster warm-up and cool-down
  • Free form peak time premium rates, unlike electricity. One rate round the clock
  • Can be used for a variety of applications

Specifications of LPG as per IS 4576 -1999

No. Characteristics Requirement for Commercial Description
    Butane - Propane Mixture 85
1 Vapour Pressure at 40O C in KPa gauge Max (Note 1) 1050 (Note 2) D1267
2 Volatility: Evaporation Temp in OC for 95% by Vol. at 760mm Hg pressure max. 2.0 D1837
3 Total volatile Sulphur ppm Max. 150 D2784
D3246
4 Copper Strip corrosion at 38 O C for 1 hour Not worse than No. 1 D1838
5 Hydrogen Sulphide Pass D2420 (Note 3)
6 Free water content None Visual

Comparison with other fuels

Fuel KCal / Kg(At room temperature) Heat transfer efficiency
LPG 11900 85%
SKO 11100 50%
Light Diesel Oil (LDO) 10700 60%
Furnace Oil (FO) 10280 55%
Natural Gas (CNG) Pass 65%
Coal None 15%
Firewood 4400 15% to 20%
Electricity 860/Kw 65%

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