To thoroughly understand the combustion behaviors of coke and biomass char based on its physiochemical characteristics and distribution states in iron ore sintering, three types of single, composite and pellet quasi-granules of coke and biomass char were prepared carefully, catalytic potential of Cu_0.1Ce_0.9O₂ to increase quasi-granule combustion efficiency defined by the extent of CO destruction in flue gas was investigated. The results showed that biomass char is combusted at relative low temperature in the range of 350–800 °C because it has higher volatiles and porosity, exhibiting high reactivity compared to coke which combusts from 650 °C to 1030 °C. Pellet type has an intrinsic high combustion efficiency due to its fine fuel size and the neighboring compounds effect. Single coarse type granules have a high CO concentration in flue gas and have the highest combustion efficiency improvement by Cu_0.1Ce_0.9O₂ loading among all the types, which is mainly attributed to CO catalytic oxidation following Mars-van Krevelen path rather than the carbon oxidation. Through intentionally producing more coarse single type and composite type granules with 3 wt% Cu_0.1Ce_0.9O₂ in granulation, substitution ratio of biomass for coke can be increased, leading to improved combustion efficiency of ~98% without deterioration of sintering performance.

为了根据焦炭和生物质炭的理化特性和分布状态，深入了解焦炭和生物质炭的燃烧行为，精心制备了焦炭和生物质炭三种单颗粒，复合颗粒和粒状准颗粒，催化势为Cu _0.1 Ce _0.9 O ₂为了提高准颗粒燃烧效率，研究人员对烟道气中的CO破坏程度进行了定义。结果表明，生物质炭在350-800°C的相对较低温度下燃烧，因为它具有较高的挥发性和孔隙率，与650°C至1030°C的焦炭相比，具有较高的反应活性。颗粒型由于其细小的燃料尺寸和邻近的化合物效应而具有固有的高燃烧效率。单一粗粒料的烟气中CO浓度高，燃烧效率提高最高的是Cu _0.1 Ce _0.9 O _2。在所有类型中的碳负荷，这主要归因于沿着Mars-van Krevelen路径的CO催化氧化，而不是碳氧化。通过在制粒中有意生产更多的粗粒单一类型和复合类型颗粒，其中Cu _0.1 Ce _0.9 O _2为3 wt％，可以提高生物质对焦炭的替代率，从而在不降低烧结性能的情况下提高〜98％的燃烧效率。