The microstructure of coke has an important influence on its thermal properties. The solution loss reactions of coke in CO₂ and H₂O atmospheres were investigated by in situ observation. The results showed that the isotropic components had a more vigorous reaction than the anisotropic components, and the solution loss reaction of the fine-grained mosaic structure was faster than that of the coarse-grained mosaic structure under the CO₂ and H₂O atmospheres. The coarse-grained mosaic structure and the flowing structure had a relatively higher anti-erosion ability in the CO₂ atmosphere than in the H₂O atmosphere, and there was no distinct difference in the solution loss of the isotropic structure under the CO₂ and H₂O atmospheres. The electron probe microanalysis showed that the Al–Si–Fe compounds in the carbon matrix had positive influence on the solution loss reaction of the anisotropic structure. The iron compounds were able to destroy the pore walls of coke and accelerate the solution loss rate of coke.

焦炭的微观结构对其热性能有重要影响。通过现场观察研究了焦炭在CO ₂和H ₂ O气氛中的溶液损失反应。结果表明，在CO ₂和H ₂ O气氛下，各向同性组分比各向异性组分具有更强的反应性，细粒镶嵌结构的固溶损失反应快于粗粒镶嵌结构。粗粒镶嵌结构和流动结构在CO ₂气氛中具有比H ₂更高的抗腐蚀能力在O气氛下，在CO ₂和H ₂ O气氛下各向同性结构的溶液损失没有明显差异。电子探针显微分析表明，碳基体中的Al–Si–Fe化合物对各向异性结构的溶液损失反应具有积极影响。铁化合物能够破坏焦炭的孔壁并加速焦炭的溶液损失率。