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. 2023 Apr 4;16:60. doi: 10.1186/s13068-023-02301-7

Fig. 1.

Fig. 1

Fuel performance characterization of olefinic ester blends provided A 10% bOS by volume improvements (in red) that correlate with increased ester unsaturation and branching. Arrows loosely follow structural increases in unsaturation or chain length. B RON (solid line) and OS (dashed line) of prenyl acetate, isoprenyl acetate, and isoamyl acetate at 10%, 20%, and 30% blending by volume. Synergistic RON blending and strong OS boosting were exhibited for both prenyl and isoprenyl acetate in a 4-component surrogate gasoline fuel and RD587 (research gasoline fuel), respectively