The liquid fuel (C5/C6 alkanes) were obtained directly by hydrogenolysis of sorbitol with Ir-VOx/SiO2 combined with HZSM-5 as the composite catalyst in a biphasic system (n-dodecane + H2O). The performance of the catalysts were investigated by carrying out a series of experiments under various V/Ir atomic ratios, reaction temperatures, reaction time, hydrogen pressure and substrate concentrations. Under optimal conditions, the sorbitol was converted compeletely, besides, a high C5/C6 yield of 88.5% was obtained at 220 oC for 6 h and 6 MPa with the V/Ir atomic ratio was 0.13, proving that Ir-VOx/SiO2 (V/Ir = 0.13) has excellent performance for the conversion of sorbitol to liquid alkanes. At the same time, it was believed the synergy effect of Ir particle and partially reduced VOx made an excellent activity of Ir-VOx/SiO2 for the conversion to hydrocarbons.

Catalytic conversion of sorbitol to C5/C6 alkanes over vanadium-modified Ir/SO2 combined with HZSM-5 in a biphasic system

2019 Spring National Meeting

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