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Influence of Sodium on Coke Microstructure in Different Reaction Atmosphere

机译：不同反应气氛中焦微晶钠的影响

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Alkali metal is one of the key critical factors that determine the coke degradation. Previous studies on the influence of alkali metal on coke structure were mostly focus on the catalysis of alkali carbonates for coke gasification reaction. Besides, the difference of alkali metal and coke gasification effects on coke degradation was still not clear. Highly reactive coke developed by Nippon Steel was proved to increase the reaction efficiency and to decrease CO_2 emission effectively. Therefore, conventional coke and highly reactive coke adsorbed 5% sodium were studied in this paper. Coke degradation tests were undertaken in atmosphere of N_2 and CO_2. SEM, EDS and XRD were employed to analyze samples. Results showed that the degradation of conventional coke strength by sodium was stronger than highly reactive coke in the atmosphere of N_2. The effect of CaO catalyst on the coke reactivity has been interpreted as a change in highly reactive coke microstructure and strength.
机译：碱金属是确定焦炭降解的关键关键因素之一。以前关于碱金属对焦炭结构的影响的研究主要集中在焦炭气化反应中碱碳酸盐的催化作用。此外，碱金属和焦炭气化作用对焦炭降解的差异仍未清楚。证明了Nippon Steel开发的高度反应性焦炭，以提高反应效率并有效降低CO_2排放。因此，本文研究了传统的焦炭和高反应性焦炭吸附5％钠。在N_2和CO_2的气氛中进行焦炭降解试验。使用SEM，EDS和XRD来分析样品。结果表明，钠通过钠的常规焦炭强度的降解比N_2大气中的高反应性焦炭强。 CaO催化剂对焦炭反应性的影响已被解释为高反应性焦炭微结构和强度的变化。

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