Alternative Fuels - Properties

Properties of alternative fuels like Biodiesel, E85, CNG and more

Properties of some alternative fuels:

Fuel Cetane Number1) Research Octane Number2) Motor Octane Number2) Density
[lb/gal]
Density
[kg/m3]
LHV3)
[Btu/gal]
LHV3)
[Btu/lb]
100% Ethanol 8 109 90 6.6 791 75600 11500
E85, 85% Ethanol   105 89 6.5 779 83600 12855
10% Ethanol/gasoline   96.5 86 6.1 731 111000 18000
10% Ethanol/diesel 45     7.0 839 123000 17500
100% Methanol 5 109 89 6.7 803 56200 8400
100% Soy methyl-ester 49     7.3 875 120200 16500
B100, 100% Biodiesel 54       117000 15800
B20, 20% Biodiesel, 80% petrodiesel 46         18100
#2 Diesel 44     6.7-7.4 803-887 126000-130000 18000-19000
#1 Diesel 44     7.6 911 125800 16600
Gasoline   90-100 80-90 6 719 115400 19200
CNG - Compressed Natural Gas < 0 > 127 122     20400
LNG - Liquified Natural Gas < 0 > 127 122 3.5 419 78000 22300
LPG - Propane   109 96 4.2 503 83600 19900
DME - Dimethyl ether 55-60     5.6 671 74800 13600
  1. Cetane number is a measurement of the combustion quality or ignition delay of diesel fuel during compression ignition
  2. Octane number is a measure of the resistance of fuels to detonation or ignition
  3. LHV - Lower Heat Value - is the net amount of heat produced by combustion of a unit quantity of a fuel

Related Topics

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

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