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Alternative Fuels - Properties

Properties of alternative fuels like biodiesel, E85, CNG and more.

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Properties of some alternative fuels:

For full table with SI units and LHV values - rotate the screen!

Fuel	Cet.No¹⁾	RON²⁾	MON²⁾	Density [lb/gal(US liq)]	Density [kg/m³]	LHV³⁾ [Btu/gal]	LHV³⁾ [Btu/lb]	LHV³⁾ [kJ/kg]	LHV³⁾ [kcal/kg]
100% Ethanol	8	109	90	6.6	791	75600	11500	26750	6390
E85, 85% Ethanol		105	89	6.5	779	83600	12855	30000	7170
10% Ethanol/gasoline		96.5	86	6.1	731	111000	18000	42350	10110
10% Ethanol/diesel	45			7.0	839	123000	17500	40950	9780
100% Methanol	5	109	89	6.7	803	56200	8400	19550	4670
100% Soy methyl-ester	49			7.3	875	120200	16500	38400	9170
B100, 100% Biodiesel	54					117000	15800	36750	8780
B20, 20% Biodiesel, 80% petrodiesel	46						18100	42100	10050
#2 Diesel	44			6.7-7.4	803-887	126000-130000	18000-19000	41900-44200	10000-10550
#1 Diesel	44			7.6	911	125800	16600	38600	9220
Gasoline		90-100	80-90	6	719	115400	19200	44650	10670
CNG - Compressed Natural Gas	< 0	> 127	122				20400	47450	11330
LNG - Liquified Natural Gas	< 0	> 127	122	3.5	419	78000	22300	51850	12390
LPG - Propane		109	96	4.2	503	83600	19900	46300	11050
DME - Dimethyl ether	55-60			5.6	671	74800	13600	31650	7550

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. Research Octane Number (RON) is measured with an engine speed of 600 rpm, while Motor Octane Number (MON) is measured with an engine speed of 900 rpm.
3) LHV - Lower Heat Value - is the net amount of heat produced by combustion of a unit quantity of a fuel

How to measure density of liquid petroleum products

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