Gasification is an effective approach to consume the excess production capacity of coke. The effects of lignite and Fe/red mud oxides on the steam gasification of coke were investigated in this study. Results show that the addition of lignite as an active substance exhibited a significant positive effect on the improvement of coke reactivity, and the volume content of syngas including H₂, CO and CH₄ reached to the values ranging from 82.24% to 89.46%. With the employment of lignite addition, free active OH radicals were formed, accompanying by an increase in surface area values and a decrease in carbon ordering degree of the coke, which are all benefit for improving the reactivity of coke with steam. The introduction of Fe4RM6 oxides further promoted the carbon conversion with a value of 99.61% of coke/lignite mixtures, which is significantly higher than that of 65.46% of pure coke gasification at a time of 150 min. The Fe4RM6 oxides presented a good performance after five gasification cycles.

气化是消耗过剩焦炭产能的有效途径。本研究研究了褐煤和铁/赤泥氧化物对焦炭蒸汽气化的影响。结果表明，褐煤作为活性物质的加入对焦炭反应性的提高以及合成气H ₂、CO和CH ₄的体积含量具有显着的积极影响。达到了从 82.24% 到 89.46% 的值。随着褐煤的加入，形成游离的活性OH自由基，伴随着焦炭表面积值的增加和碳有序度的降低，这些都有利于提高焦炭与蒸汽的反应性。Fe4RM6 氧化物的引入进一步促进了碳转化，焦炭/褐煤混合物的碳转化率为 99.61%，明显高于纯焦气化 150 分钟时的 65.46%。Fe4RM6 氧化物在五次气化循环后表现出良好的性能。