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What are the Three Grades of LPG?

Three Grades of LPG

Liquefied Petroleum Gas (LPG) is a fuel made up of hydrocarbons, typically propane and butane. It is derived from natural gas processing or petroleum refining processes and is used in many industrial, commercial, and residential applications.

LPG has been around for quite some time now, and its use continues to increase due to its lower cost than other fuels such as electricity or oil. The main components of LPG are Propane and Butane.

These two gases are odourless and colourless when in their gaseous state. They become liquids under pressure at room temperature, making them easier to store than gaseous forms. When manufacturing LPG, they are classified according to their quality and purity.

What are the Three Grades of LPG

1. Commercial Grade

LPG, labelled commercial grade, is the lowest quality liquefied petroleum gas available. It is suitable for most applications but may not be ideal for some sensitive applications like industrial processes.

This grade contains a higher concentration of lower-grade hydrocarbons and has a lower purity level than other grades, such as automotive and technical.

Commercial Grade LPG

2. Industrial Grade

Industrial grade LPG has a higher purity level than commercial grade, making it more suitable for high-powered engines and more challenging operating conditions.

Its higher purity makes it better suited for certain industrial processes that require greater operational efficiency and lower emissions. It is also used in some applications that require an increased level of safety, such as those involving fuel systems and boilers.

Industrial Grade LPG

3. Refined Grade

The refined grade LPG is the highest quality available, containing extremely low impurities and contaminants that provide superior performance, fuel economy and reliability. The refining process for this grade of LPG removes heavier particles of butane and propane, leaving behind only the purest and cleanest hydrocarbons.

This grade of LPG is most often used in high-performance engines and sensitive industrial applications that require the highest levels of purity and efficiency. It is also used in niche applications, such as space propulsion systems.

Refined Grade LPG

Other LPG Grades:

●      Automotive Grade

The automotive-grade LPG is a refined commercial-grade version suitable for internal combustion engines and other automotive applications. It has higher purity levels, fewer contaminants, and a more precisely balanced mix of hydrocarbons than commercial-grade LPG. This type of fuel is also known as “gasoline grade” LPG.

automotive-grade LPG

●      Technical Grade

The technical grade LPG, on the other hand, is a high-quality grade suitable for use in high-level industrial processes such as laboratory applications that require exact measurements. It is usually the most expensive grade of LPG due to its higher purity tiers and lower contamination levels. This grade is sometimes categorised as “industrial grade” LPG.

technical grade LPG

Which of the three LPG grades is used in energy facilities?

The highest grade of LPG is typically used in energy facilities such as electricity plants and other related establishments. This grade is known as Propane-1 or Propylene. It has a high calorific value, making it suitable for use in engines and turbines to generate electricity.

Furthermore, Propane-1 is non-toxic, non-corrosive, and produces no hazardous emissions. It also has a higher energy density than other grades of LPG, making it highly efficient in fuel consumption.

It is also more expensive than the lower-grade LPGs, which explains why electricity consumption is more expensive than gas-fueled appliances. As such, many energy facilities use lower-grade industrial LPGs such as Propane-2 and Butane for their operations.

Should households use refined-grade LPG?

Using refined-grade LPG in households is a matter of debate and should be weighed carefully. Refined grade LPG has some distinct advantages regarding home appliances, but some drawbacks must be considered.

The purity of the fuel is higher than other grades, which makes it more suitable for high-powered or sensitive appliances, providing better performance and reliability. However, this higher purity does come at a cost – its price is usually much higher than other grades of LPG.

Another factor to consider is safety. Since the fuel contains fewer impurities, it can be more volatile and flammable. As such, it is important to ensure that the storage tanks used are suitable for storing refined-grade LPG and have been properly maintained to reduce the risk of fire or explosion.

Ultimately, whether or not households should use refined-grade LPG comes down to a cost-and-benefit analysis and should be considered carefully before making any decisions.

In summary, the three grades of LPG vary in the level of impurities and contaminants they contain. These also define the kind of emissions, performance, efficiency, reliability and cost they offer. While refined-grade LPG may seem the “cleanest” choice, factoring in the cost and safety makes commercial grade suitable for most residential and hospitality applications.

For quality yet cost-efficient LPG in Brisbane, contact Plus Gas today!

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