Research Article
Density, Viscosity and Water Phase Stability of 1-Butanol-Gasoline Blends
Table 1
Properties of alcohols and automotive gasoline with octane number 95 [
1,
5–
7].
| | Parameter | Unit | Gasoline 95 | Ethanol | 1-Butanol |
| | Boiling point |
°C | 30–215 | 78.3 | 117.7 | | Density at 15°C | Kg·m−3 | 720–775 | 794 | 809 | | Melting point |
°C | — | −114.4 | −88.6 | | Kinematic viscosity at 25°C | mm2·s−1 | 0.4–0.8 | 1.0 | 2.6 | | Lower heating value | MJ·kg−1 | 44.4 | 28.9 | 33.1 | | Research octane number RON | — | 95 | 106–1301 | 94–961 | | Motor octane number MON | — | 85 | 89–1031 | 781 | | Reid vapour pressure | kPa | 45–90 | 17 | 2.3 | | Solubility of water at 20°C | w/w% | ~0.01 | Completely miscible | 20.1 | | Stoichiometric air/fuel ratio | — | 14.8 | 9.0 | 11.1 | | Oxygen content |
w/w% | max 2.7 | 34.7 | 21.6 |
|
|
Blending values.
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