综述了生物质气化过程中金属氧化物催化与结构优化的研究现状。金属氧化物碳酸化/煅烧循环反应过程中煅烧产物的孔隙结构直接决定产物碳酸化转化率的变化规律,同时也间接影响到宏观动力学特性以及催化分解作用。金属氧化物对生物质气化阶段的作用主要体现在焦油重整反应和焦油分解反应,但金属氧化物对焦油分解反应的作用更明显,其改性归根为微观结构的改良,使金属氧化物具有良好的催化特性,对生物质气化具有重要的学术意义及应用价值。
The research status of metallic oxide(MO) catalysis and structure optimization during biomass gasification was reviewed.The pore structure of calcined products during the circular reaction of MO carbonation/calcination directly determined the change regulation of carbonation percent conversion,and indirectly influenced the macro-kinetics characteristics and catalytic decomposition.The effect of MO on the biomass gasification stage mainly reflected in the tar reforming reaction and tar decomposition reaction,but the effect of MO on tar decomposition reaction was more obvious,its modification was attributed to the improvement of micro-structure,which played an important role in its catalysis characteristics,and had important academic significance and application value for biomass gasification.
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基金资助
国家自然科学基金项目(51666004,51966004);江西省自然科学基金项目(20171BAB206041);江西理工大学清江青年优秀人才项目(JXUSTQJYX2017003);江西省教育厅基金项目(GJJ180498)
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