Hydrogen-rich syngas was a clean energy and an important industrial material. Based on the decoupling strategy of biomass chemical looping gasification process, this paper proposed a strategy of metal oxides embedded into molecular sieves to prepare highly dispersed and nanosized oxygen carriers for producing hydrogen-rich syngas. NiO@SBA-15, Fe₂O₃@SBA-15, and NiFe₂O₄@SBA-15 were prepared by the impregnation method, and the reaction conditions on the chemical looping reforming of toluene were investigated. The results showed that NiFe₂O₄@SBA-15 had the highest toluene conversion rate of 93.4% and a relatively high CO selectivity rate of 80.7%. It was confirmed that the embedding strategy can effectively enhance the nanocrystallization and dispersion of metal oxides in oxygen carriers, which could effectively reduce sintering. The inverse spinel structure of NiFe₂O₄ made the oxygen carrier have more metal adsorption sites and a closer reaction distance, which were beneficial to the adsorption and reaction of the fuel. After testing, the optimum reaction temperature was 750 °C, and the optimum weight hourly space velocity was 1.168 h⁻¹. In the 10 cycles of testing of 20 NiFe₂O₄@SBA-15, the average conversion rate of toluene was 95.34%, the moderate selectivity of CO in the gaseous product was 94.83%, the average H/C ratio was 1.97, which indicated that the cycle stability is good. It provided a reference for developing and designing future oxygen carriers of biomass chemical looping reforming.

富氢合成气是一种清洁能源和重要的工业原料。基于生物质化学循环气化过程的解耦策略，本文提出了一种将金属氧化物嵌入分子筛中制备高分散纳米级氧载体的策略，用于生产富氢合成气。采用浸渍法制备了NiO@SBA-15、Fe ₂ O ₃ @SBA-15和NiFe ₂ O _{4 @SBA-15，并考察了甲苯化学链重整的反应条件。}结果表明，NiFe ₂ O ₄@SBA-15甲苯转化率最高，为93.4%，CO选择性较高，为80.7%。证实嵌入策略可以有效地增强金属氧化物在氧载体中的纳米结晶和分散，从而有效地减少烧结。_{NiFe 2} O ₄的反尖晶石结构使氧载体具有更多的金属吸附位点和更近的反应距离，有利于燃料的吸附和反应。经测试，最佳反应温度为750℃，最佳重时空速为1.168 h ^-1。_{在20个NiFe 2} O ₄的10个循环测试中@SBA-15，甲苯平均转化率为95.34%，气态产物中CO适度选择性为94.83%，平均H/C比为1.97，循环稳定性良好。为未来生物质化学循环重整载氧体的开发设计提供了参考。