Based on the previous results, we proposed the reaction pathway of CO2 hydrogenation coupled with toluene alkylation to produce aromatics of jet fuels over tandem catalysts as follows: CO2 and H2 in turn undergo RWGS and C-C coupling reactions at the Fe3O4 and Fe5C2 active sites of the iron-based catalysts to produce olefin intermediates, which were subsequently alkylated with toluene at the zeolite acid site to produce aromatics components of jet fuel. To verify this reaction pathway, ethylene or propylene was used directly instead of CO2/H2 to react with toluene on Z5 zeolite under the same reaction conditions. Both ethylene/toluene and propylene/toluene catalytic system could proceed over Z5 zeolite. Besides, ethylene or propylene was nearly completely converted (Fig. ). The selectivity of C8-C16 reached 76.3% and 55.8% respectively, indicating that the proposed reaction pathway was reasonable.