Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Paraffins and Alkanes - Combustion Properties

Properties like heat values, air/fuel ratios, flame speed, flame temperatures, ignition temperatures, flash points and flammability limits.

Sponsored Links

For full table with Maximum Flame Speed, Adiabatic Flame Temperature, Ignition Temperature, Flash Point and Flammable Limits LEL UEL - rotate the screen!

Paraffin or Alkanes	Chemical Formula	Higher Heating Value (Btu/lb_m)	Air/Fuel Ratio	Maximum Flame Speed (ft/s)	Adiabatic Flame Temperature (^oF)	Ignition Temperature (^oF)	Flash Point (^oF)	Flammability Limits
Paraffin or Alkanes	Chemical Formula	Higher Heating Value (Btu/lb_m)	Air/Fuel Ratio	Maximum Flame Speed (ft/s)	Adiabatic Flame Temperature (^oF)	Ignition Temperature (^oF)	Flash Point (^oF)	LEL	UEL
Ethane	C₂H₆	22323	15.899	1.3	3540	968 - 1166	^*)	3.0	12.5
n-Butane	C₄H₁₀	21321	14.984	1.2	3583	761	-76	1.9	8.4
iso-Butane	C₄H₁₀	21271	14.984	1.2	3583	864	-117	1.8	8.4
n-Heptane	C₇H₁₆	20854	14.141	1.3	3985	433	25	1.0	6.0
n-Hexane	C₆H₁₄	20966	15.238	1.3	4030	478	-7	1.3	7.0
Methane	CH₄	23875	17.195	1.1	3484	1301	^*)	5.0	15.0
Neopentane	C₅H₁₂	20978	15.323	1.1	4060	842	^*)	1.4	7.2
Neohexane	C₆H₁₄	20931	15.238	1.2	4055	797	-54	1.2	7.6
n-Octane	C₈H₁₈	20796	15.093			428	56	0.9	3.2
iso-Octane	C₈H₁₈	20770	15.093	1.1		837	10	0.8	5.9
n-Pentane	C₅H₁₂	21095	15.323	1.3	4050	588	< -40	1.4	7.8
iso-Pentane	C₅H₁₂	21047	15.323	1.2	4055	788	< - 60	1.3	9.2
Propane	C₃H₈	21669	15.246	1.3	3573	871	^*)	2.1	10.1

^*) gas

LEL - Lower Explosive or Flammable Limit
UEL - Upper Explosive or Flammable Limit

1 ft/s = 0.3048 m/s
T(^oC) = 5/9[T(^oF) - 32]
1 Btu/lb_m = 2,326.1 J/kg = 0.55556 kcal/kg

Sponsored Links

Related Topics

Combustion - Boiler house topics - fuels like oil, gas, coal, wood - chimneys, safety valves, tanks - combustion efficiency

Related Documents

Combustion Efficiency and Excess Air - Optimizing boilers efficiency is important to minimize fuel consumption and unwanted excess to the environment.
Combustion Heat - Heat of combustion (energy content) for som common substances - with examples how to calculate heat of combustion.
Combustion of Fuels - Carbon Dioxide Emission - Environmental emission of carbon dioxide CO₂ when combustion fuels like coal, oil, natural gas, LPG and bio energy.
Combustion Testing - Combusting testing of fuel oil and gas burners.
Fuel Gases - Combustion Values - Combustion values for fuel gases like natural gas, propane and butane - Btu per cubic feet.
Fuel Oil Combustion Values - Combustion values in Btu/gal for fuel oils No.1 to No.6.
Fuels - Combustion Air and Flue Gases - Combustion air and flue gas for common fuels - coke, oil, wood, natural gas and more.
Fuels - Higher and Lower Calorific Values - Higher and lower calorific values (heating values) for fuels like coke, oil, wood, hydrogen and others.
Fuels Flue Gases - Average Dew Points - Flue gas dew point temperatures for some fuels.
Gross Combustion Value common Materials - Gross combustion values for materials like - carbon, methane, ethylene and more - values in Btu/lb.
High and Low Heat Values - The gross (high) and net (low) heating values.
Intermittent Combustion and Boiler Efficiency - Efficiency reduction due to intermittent boiler operation.
Nitrogen Oxides (NO_x) Emission from Fuels - Emission of Nitrogen Oxides - NO_x - with combustion of fuels like oil, coal, propane and more.
Optimal Combustion Processes - Fuel vs. Excess Air - Stable and efficient combustion requires correct mixture of fuels and oxygen.
Wood - Combustion Heat Values - Combustion of wood and firewood heat values for species like Pine, Elm, Hickory and more.

Sponsored Links

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro .Add the Engineering ToolBox extension to your SketchUp from the SketchUp Pro Sketchup Extension Warehouse!

Translate

About the Engineering ToolBox!

Privacy

We don't collect information from our users. Only emails and answers are saved in our archive. Cookies are only used in the browser to improve user experience.

Some of our calculators and applications let you save application data to your local computer. These applications will - due to browser restrictions - send data between your browser and our server. We don't save this data.

Google use cookies for serving our ads and handling visitor statistics. Please read Google Privacy & Terms for more information about how you can control adserving and the information collected.

AddThis use cookies for handling links to social media. Please read AddThis Privacy for more information.

Advertise in the ToolBox

If you want to promote your products or services in the Engineering ToolBox - please use Google Adwords. You can target the Engineering ToolBox by using AdWords Managed Placements.

Citation

This page can be cited as

Engineering ToolBox, (2008). Paraffins and Alkanes - Combustion Properties. [online] Available at: https://www.engineeringtoolbox.com/paraffins-alkanes-combustion-d_1430.html [Accessed Day Mo. Year].

Modify access date.

close

3D Engineering ToolBox - draw and model technical applications!

2D Engineering ToolBox - create and share online diagram drawing templates!

Engineering ToolBox Apps - mobile online and offline engineering applications!

Scientific Online Calculator

Scientific Calculator

1 14

Sponsored Links