WHAT IS LPG?
Liquefied Petroleum Gas (LPG or LP Gas) refers to a mixture of hydrocarbon gases with compounds containing primarily propane (C3) and butane (C4).
Although these gases are in vapour form, they are compressible to transportable liquid. They can be liquefied through a compression process at ambient temperature, refrigeration at atmospheric pressure, or a combination of both.
The pressure required to liquefy the vapour is relatively low, allowing easy storage of the liquid gas in pressurised vessels at ambient temperature. LPG returns to vapour form when the pressure is released.
LPG is most commonly traded as a mixture of propane and butane. The ratio of the mixture typically varies depending on the climate - the cooler the climate, the higher the propane content.
As a precaution, a powerful odorant (Ethyl Mercaptan) is added in small amounts to make gas leaks easily detectable as LPG is highly flammable, odourless and colourless.
HOW IS LPG PRODUCED
LPG is extracted both during natural gas production and crude oil refinery processing.
Natural gas may contain up to 10% of propane and/or butane, which is removed for technical, commercial and safety reasons. Crude oil refining typically produces around 2% to 4% of propane and/or butane.
Historically, LPG – essentially a by-product – was very often flared. However, the increased value of and demand for LPG, coupled with the undesirable environmental impact of flaring, have justified the significant investment in the storage and distribution of LPG.
ADVANTAGES OF LPG
A clean and efficient fuel, LPG emits 20% less carbon dioxide (CO2) than heating oil and 50% less CO2 than coal. LPG makes cooking, heating and generating electricity in an environmentally friendly manner possible.
|Clean||Burns cleanly, producing no soot and very low sulphur emissions|
|Green||When burnt, the amount of CO2 per kWh produced is 81% that of oil and less than 70% that of coal|
|Efficient||Has a higher calorific value of 94 MJ/m3 than Liquefied Natural Gas (38 MJ/m3)|
|Convenient||Can be easily stored and transported in cylinders of various sizes to meet the needs of different types of consumers|
USES OF LPG
LPG has developed into one of the world's most versatile forms of modern energy sources. It is widely used in the retail and residential sector as a fuel for heating and cooking appliances.
Applications of LPG can also be found in various sectors including industrial, commercial, agricultural and transportation. In the chemical industry, LPG is commonly used as a feedstock and has naphtha as its competitor.
|Cooking||Offers chefs greater control over the heat and flame intensity levels|
|Heating||Provides an eco-friendly alternative to electricity and heating oil|
|Autogas||Non-toxic, non-corrosive, clean, and extends the lifespan of vehicles and the environment|
|Power Generation||Enables highly efficient, decentralised power generation through self-contained generators|