Flame Temperature of Common Fuel Gases

Propane, Acetylene, Propylene and their theoretical flame temperatures.

Propane: When propane is mixed with pure oxygen and burned in a controlled environment, the flame temperature can reach approximately 2,500 to 2,800 degrees Celsius (4,500 to 5,000 degrees Fahrenheit). This represents the theoretical upper limit for the flame temperature achievable when propane combines with pure oxygen and undergoes complete combustion.

Propylene: When propylene, a hydrocarbon compound, is mixed with pure oxygen and burned in a controlled environment, the flame temperature can reach approximately 3,100 to 3,200 degrees Celsius (5,600 to 5,800 degrees Fahrenheit). This temperature range represents the theoretical upper limit for the flame temperature achievable when propylene combines with pure oxygen and undergoes complete combustion.

The flame temperature of propylene is generally higher compared to propane due to its different molecular structure. Propylene contains a carbon-carbon double bond, which contributes to its higher energy content and combustion temperature.

Acetylene: When acetylene, a hydrocarbon gas, is mixed with pure oxygen and burned in a controlled environment, the flame temperature can reach approximately 3,100 to 3,300 degrees Celsius (5,600 to 5,950 degrees Fahrenheit). This temperature range represents the theoretical upper limit for the flame temperature achievable when acetylene combines with pure oxygen and undergoes complete combustion.

Acetylene is known for its high flame temperature due to its unique chemical structure, which contains triple carbon-carbon bonds. This triple bond provides acetylene with a high energy content, resulting in a hotter flame compared to other fuel gases.

It's important to note that the actual flame temperature can vary depending on factors such as the fuel-to-oxygen ratio, burner design, combustion conditions, and other variables. The presence of impurities or incomplete combustion can affect the flame temperature as well.

Achieving and accurately measuring extremely high flame temperatures require specialized equipment and controlled environments. Safety precautions must be taken into consideration when working with high-temperature flames.

If you have a specific application or context in mind where you are looking to work with high flame temperatures using propane and pure oxygen, it is essential to consult with experts in the field who can provide guidance on the appropriate equipment, safety protocols, and any specific considerations based on your intended use case.