Abstract
Glucose, which can be obtained from the biomass directly, was added into the heavy fuel oil in the form of an aqueous solution to prepare a novel alternative emulsified fuel. The effects of different components (water, glucose and surfactant) on the droplet size distribution, the stability and the viscosity-temperature characteristics were studied experimentally. Results show that the increases in both the water concentration (0–40v/v%) and the hydrophile-lipophile balance (HLB) value (4.3–14.3) have the negative influence on the stability. By contrast, with the enhanced glucose blend ratio (0–40%), the stability and the homogeneity present the rising trends before they are decreased. It is worth noting that the long-term stability (85 °C, 30 days without separation) along with the minimum mean droplet size can be obtained at the 30% glucose blend ratio. Besides, the long-term stability cannot be not obtained at both surfactant concentration of 1% and 5%. The viscosity of the emulsion with surfactant is reduced in the range of 25–35 °C but increased in the range of 60–95 °C compared with that of emulsion without surfactant. Furthermore, there exists the quite slight change of the viscosity with the addition of glucose.
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