All issues Volume 76 (2021) Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles, 76 (2021) 74 Full HTMLQualification of gasoline and biogas.
| Qualification | Gasoline | Biogas |
|---|---|---|
| Chemical formulation | C8H18–C7H16 | CH4 – 55.6% |
| CO2 – 42.3% | ||
| N2 – 2.1% | ||
| Density at 15 °C (kg/m3) | 720–775 | 1.11 |
| Lower thermal value (MJ/kg) | 43.55 | 17.0 |
| Research octane number | 91 | 110 |
| Stoichiometric air/fuel ratio | 14.7 | 5.67 |
| Autoignition temperature (°C) | 257 | 650 |
| Flame velocity (cm/s) | 45 | 25 |
| The heat of evaporation (kJ/kg) | 330 | 500 |
| Evaporation temperature (°C) | 20–200 | −42 |
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