Method for preparing liquid fuel by catalyzing lignin with Ni-ReOx/Al2O3

[0017] Example 1:

[0018] 200 mg of lignin model compound phenoxyethylbenzene, 20 mg of catalyst Ni-ReO x / Al 2 O 3 (1wt% Ni, 2wt% Re), 30 ml of water was added to the 100 ml reaction vessel, hydrogen was introduced to replace the gas three times, hydrogen was filled to 2.0 MPa, and the temperature was raised to 180° C. and reacted for 3 hours. After the reaction, it was cooled to room temperature, and ethyl acetate was added for extraction. The organic supernatant was obtained for chromatographic analysis. The conversion rate was 99.9%, the yield of ethyl cyclohexane was 95.7%, and the yield of cyclohexane was 85.6%.

[0019] Example 2-3

[0020] Other process conditions and experimental procedures are the same as in Example 1, but using different catalysts. The results are shown in Table 1. Table 1. Experimental results of different catalysts catalyzing lignin model compound phenoxyethylbenzene

[0021]

[0022] Compared with pure Ni / Al 2 O 3 And ReO x / Al 2 O 3 When catalytically converting lignin model compounds, the substrate conversion rate, ethylcyclohexane and cyclohexane yields are all low, only when Ni and ReO x Simultaneous loading to obtain Ni-ReOx / Al 2 O 3 At this time, higher yields of ethylcyclohexane and cyclohexane were obtained, indicating that Ni and ReOx have a synergistic catalytic effect.

[0023] Example 4-8:

[0024] Other process conditions and experimental steps are the same as in Example 1, but using different starting pressures. The results are shown in Table 2.

[0025] Table 2. In different starting pressures, Ni-ReO x / Al 2 O 3 (1wt% Ni, 2wt% Re) catalytic lignin model compound phenoxyethylbenzene experimental results

[0026]

[0027] As shown in Table 2, as the initial pressure increased, the yields of ethyl cyclohexane and cyclohexane increased.