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LPG

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Our LPG products include:

  • Propane (this is the only LPG available in colder climates).
  • Butane.
  • Propane/Butane mixtures.

Supply options

Contact us for advice on the most cost effective supply option to meet your needs, these include:

  • Compressed LPG – as a fuel gas for welding, cutting, and flame processes in a range of cylinder sizes.
  • Bulk LPG – for large volume users.

Processes that use LPG

LPG’s high calorific value makes it a key gas for:

  • Heating appliances – used because of its ease of combustion, portability and clean burning characteristics and compatibility with almost all water and space heating appliances. The best product depends on the climate:
    • Propane – suitable for use in all conditions. It is the only LPG product suitable for cold climates (such as the UK and Canada) because of its low boiling point of -43.6 oF/-42oC.
    • Butane – suitable for use in hot climates only because of its higher boiling point of 22.9oF/-5oC.
    • Propane/Butane mixtures –suitable for use in moderate climates.
  • Cooking – preferred to electricity by professional chefs.
  • Oxy-Fuel applications – LPG performs well in large-scale oxy-fuel burner applications.
  • Feedstock – used as feedstock by price sensitive industries when prices are low

LPG’s clean burning characteristics make it a good gas for:

  • Transport fuel – for forklift and other trucks that operate inside warehouses and factories because it provides nonoxious exhaust gases and gives more power than batteries. LPG is also increasingly used as a clean automotive fuel in countries with serious air pollution problems.

Propane and butane’s low boiling points also gives them good closed cycle refrigerants characteristics (similar to Freons).

Industries that use LPG

LPG’s calorific and clean-burning characteristics are used across many industries such as:

  • Automotive – as a forklift truck fuel and in some countries as a private car or public transport fuel.
  • Hospitality and Leisure – as a heating and cooking gas in restaurants, cafes and mobile catering vans.
  • Agriculture – for crop drying, heating greenhouses and animal sheds and for flame weeding and pest control.
  • Construction – LPG’s portability allow its use for general space heating to enable work on projects during winter months, and for road heating in bitumen replacement work.
  • Chemicals and Petrochemicals – LPG surplus is used as feedstock when prices are low.

LPG’s use in applications such as transport fuel and oxy-fuel burners means it is used across many other industries too [see the full list of industries that we serve].

Safety Information

  • LPG is a highly flammable fuel gas.
  • LPG is an asphyxiant gas and vessels should be purged of LPG and restored to a safe oxygen level before entering.
  • In its gaseous phase LPG is about 50% heavier than air and therefore accumulates at ground level and in low lying areas.
  • Due to its low LEL (Lower Explosive Limit), explosive mixtures with air or oxygen can occur at very low LPG concentrations.
  • LPG has a high coefficient of thermal expansion and the over filling of tanks and cylinders can result in hydraulic rupture.
  • Rapidly vaporising LPG cools cylinders and pipe work to as low as -42oC and can cause frostbites.

Technical Information

Propane

Characteristics Values
Specific gravity at 70oF/21oC 1.56
Calorific value (kJ/kg) 50,000
Critical temperature (oF/oC -43.6/-42

Butane

Characteristics Values
Specific gravity at 70oF/21oC 2.07
Calorific value (kJ/kg) 49,000
Critical temperature (oF/oC) 22.99/-5
-2 -1 0 1 2

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