HIGH-OCTANE UNLEADED AVIATION GASOLINE Russian patent published in 2018 - IPC C10G59/00 C10L1/04 C10L1/10 C10L1/16 C10L1/223 C10L1/185 

FIELD: biotechnology.

SUBSTANCE: invention describes an unleaded aviation fuel composition that has MON of at least 99.6, a sulfur content of less than 0.05 % by weight, a CHN content of at least 97.2 % by weight, oxygen content of less than 2.8 % by weight, T10 is not more than 75 °C, T40 is at least 75 °C, T50 is not more than 105 °C, T90 is not more than 135 °C, the boiling point is less than 190 °C, the calorific value corrected is at least 43.5 MJ/kg, vapor pressure in the range of 38–49 kPa and contains: 20–35 % by volume of toluene having MON of at least 107; 2–10 % by volume of aniline; 30–55 vol % of at least one alkylate or alkylate mixture having a boiling range of 32–60 °C and a boiling range of 105–140 °C having T40 of less than 99 °C, T50 of less than 100 °C, T90 is less than 110 °C, where the alkylate or alkylate mixture contains isoparaffins with 4 to 9 carbon atoms, 3–20 vol % C5 isoparaffins, 3–15 vol % C7 isoparaffins and 60–90 vol % C8 isoparaffins based on alkylate or alkylate mixture and less than 1 vol % C10+ based on alkylate or alkylate mixture; 7–14 vol % branched alkyl acetate, having a branched chain alkyl group with 4 to 8 carbon atoms; and 8–26 vol % of isopentane in an amount, sufficient to achieve vapor pressure in the range of 38–49 kPa; wherein said fuel composition contains less than 1 vol % of C8 aromatic compounds.

EFFECT: technical result consists in obtaining a high octane aviation fuel composition that has a low oxygen content, a lower freezing point corresponding to the ASTM D910 standard for aviation fuel.

15 cl, 16 dwg, 11 ex