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. 2023 Sep 4;13(1):14551.
doi: 10.1038/s41598-023-41329-5.

Effect of dimethyl carbonate addition on ethanol-gasoline fuel blend

Manal Amine  1 , Y Barakat  2
Affiliations

Effect of dimethyl carbonate addition on ethanol-gasoline fuel blend

Manal Amine et al. Sci Rep. .

Abstract

The growing need for renewable and environmentally friendly sources of energy has motivated a lot of researchers to direct their efforts to meet these challenges. The use of renewable additives to gasoline, such as ethanol and methanol, has been a successful solution. However, blending ethanol into gasoline has some drawbacks, including increased gasoline volatility and significant changes in the distillation curve. This study investigated the effects of blending the eco-friendly dimethyl carbonate (DMC) with various concentrations into ethanol-gasoline fuel blend (E10) on some volatility parameters and octane number, which have not been previously reported in the literature. The fuel samples were formulated by mixing E10 with (0.0%, 2.0%, 4.0%, 6.0%, 8.0%, and 10.0%) of dimethyl carbonate. The main properties of the fuel samples were measured such as distillation curve, and octane number. The distillation process was carried out in accordance with ASTM-D86 while vapor pressure was measured in accordance with ASTM-D5191. The obtained results revealed interesting outcomes that may spark the interest of refineries in this promising fuel additive. Addition of DMC to gasoline-ethanol blend was found to have insignificant impact on the volatility of fuel. The results demonstrate that addition of ethanol to gasoline causes a significant decrease in T50 by about 20 °C, while addition of 10 volume percent of DMC to E10 causes an increase in T50 by about 2 °C. The obtained results showed also that the addition of 10 vol% of DMC to E10 fuel blend considerably increases the RON and MON by about 4 and 3.5 points, respectively.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Figure 1
Figure 1
The impact of blending DMC into gasoline-ethanol blends on the distillation curve.
Figure 2
Figure 2
Displaying the area under distillation curve, the effect of ethanol on distillation curve of gasoline fuel, and the effect of blending 10% DMC on distillation curve of gasoline-ethanol blend.
Figure 3
Figure 3
Impact of ethanol on the area under distillation curve of gasoline and the impact of DMC on the area under distillation curve of gasoline-ethanol blends.
Figure 4
Figure 4
The impact of ethanol on the T10, T50, and T190 of gasoline and the impact of DMC on the T10, T50, and T190 of gasoline-ethanol blends.
Figure 5
Figure 5
The impact of ethanol on the E70, E100, and E150 of gasoline and the impact of DMC on the E70, E100, and E150 of gasoline-ethanol blends.
Figure 6
Figure 6
The impact of ethanol on the RON, MON, and AKI of gasoline and the impact of DMC on the RON, MON, and AKI of gasoline-ethanol blends.
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