化学链耦合催化重整热解生物油制备合成气

生物油重整制合成气不仅能充分利用生物油中的成分，同时也展现了生物油转化为化学品的高值利用潜能。将载氧体NiFe₂O₄和Ni基催化剂耦合得到催化耦合化学链反应体系，为了比较催化剂的影响机制，分别构建了Ni/Si-NiFe和Ni/VR-NiFe催化耦合化学链反应体系，并以愈创木酚、乙酸和乙醇的纯物质及其混合液作为生物质热解液的模拟物，通过水蒸气重整实验考察了催化剂配比、反应温度、水碳比和反应时间对重整产物分布的影响。基于反应条件的筛选进一步通过寿命试验和BET、SEM表征，验证了反应体系的稳定性。最后，通过单组分及混合液体重整反应系统分析了化学链耦合催化反应体系的重整机制，为生物质热转化制备化学品提供了重要的理论支撑。

Coupled chemical looping and catalytic reforming to produce syngas from pyrolysis bio-oil

The reforming of bio-oil to syngas can not only make full use of the components in bio-oil, but also demonstrate the high-value utilization potential of bio-oil into chemicals. NiFe₂O₄ and Ni based catalysts were coupled to form a catalytic coupling chemical looping reaction system. In order to compare the influence mechanism of catalysts, Ni/Si-NiFe and Ni/VR-NiFe catalytic coupling chemical looping systems were constructed respectively. The pure substances and mixtures of guaiacol, acetic acid and ethanol were used as the models of biomass pyrolysis liquid. The effects of catalyst ratio, reaction temperature, water carbon ratio and reaction time on the product distribution were investigated by steam reforming experiment. Based on the screen of reaction conditions, the stability of the reaction system was further verified by life test, bet and SEM characterization. Finally, the reforming mechanism of the chemical looping coupling catalytic system was analysed through the single component and mixed liquid reforming reaction. The article provided an important theoretical support for biomass thermal conversion to produce chemicals.