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Effect of Iron Particles on the Coke Solution Loss Reaction
ACS Omega ( IF 3.7 ) Pub Date : 2020-09-22 , DOI: 10.1021/acsomega.0c01701 Jie Huang 1 , Yixuan Yang 1 , Yinping Cao 2 , Lirong Song 1 , Dandan Huang 1
ACS Omega ( IF 3.7 ) Pub Date : 2020-09-22 , DOI: 10.1021/acsomega.0c01701 Jie Huang 1 , Yixuan Yang 1 , Yinping Cao 2 , Lirong Song 1 , Dandan Huang 1
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The coke solution loss reaction was investigated by using a well-type Si–Mo rod electric furnace. The effects of the CO2 flow rate, reaction time, loading mode, and loading amount of iron particles on the coke solution loss reaction were investigated. By comparing the SEM and EDS before and after the reaction of loaded iron particle coke, the reasons for the influence of loading mode on the coke solution loss reaction were explored, and the mechanism behind it was further explored. The experimental results show that there is a positive proportional relationship between the CO2 flow rate and reaction time with coke solution loss reactivity. The adsorption and addition of iron oxide play an important role in promoting the coke solution loss reaction, but when the saturation point of iron oxide loading is exceeded (1%), the adsorption load of iron particles has little effect on the coke solution loss reaction. At the same reaction temperature, the carbon conversion of the adsorption method is 10% larger than that of the addition method. From the analysis of SEM, it can be seen that the mechanism of iron particles affecting the coke solution loss reaction is different under the two loading modes. In the addition method, some iron particles are wrapped in a coke pore wall matrix, so they cannot play a role. In the adsorption process, iron particles are uniformly distributed on the coke surface, which provide more effective catalytic active centers. In addition, when iron particles are loaded by the addition method, they participate in coke formation, which affects the coke structure and then affects the coke solution loss reaction. The iron particles in the adsorption method play a catalytic role in the coke solution loss reaction.
中文翻译：
铁颗粒对焦炭溶液流失反应的影响
通过使用井式Si-Mo棒式电炉研究了焦炭溶液损失反应。研究了CO 2流量，反应时间，负载方式和铁颗粒负载量对焦炭溶液损失反应的影响。通过比较负载铁颗粒焦炭反应前后的SEM和EDS，探讨了负载方式对焦炭溶液损失反应影响的原因，并进一步探讨了其机理。实验结果表明，CO 2之间存在正比例关系流速和反应时间与焦炭溶液损失反应性。氧化铁的吸附和添加在促进焦炭溶液损失反应中起着重要作用，但是当超过氧化铁负荷的饱和点（1％）时，铁颗粒的吸附负荷对焦炭溶液损失反应的影响很小。 。在相同的反应温度下，吸附法的碳转化率比加成法大10％。从SEM分析，可以看出铁颗粒影响焦炭溶液损失反应的机理在两种加载方式下是不同的。在添加方法中，一些铁颗粒包裹在焦炭孔壁基质中，因此它们无法发挥作用。在吸附过程中，铁颗粒均匀地分布在焦炭表面，提供更有效的催化活性中心。另外，当通过添加方法装载铁颗粒时，它们参与焦炭形成，这影响焦炭结构，然后影响焦炭溶液损失反应。吸附法中的铁颗粒在焦炭溶液损失反应中起催化作用。
更新日期：2020-10-06
中文翻译：
铁颗粒对焦炭溶液流失反应的影响
通过使用井式Si-Mo棒式电炉研究了焦炭溶液损失反应。研究了CO 2流量，反应时间，负载方式和铁颗粒负载量对焦炭溶液损失反应的影响。通过比较负载铁颗粒焦炭反应前后的SEM和EDS，探讨了负载方式对焦炭溶液损失反应影响的原因，并进一步探讨了其机理。实验结果表明，CO 2之间存在正比例关系流速和反应时间与焦炭溶液损失反应性。氧化铁的吸附和添加在促进焦炭溶液损失反应中起着重要作用，但是当超过氧化铁负荷的饱和点（1％）时，铁颗粒的吸附负荷对焦炭溶液损失反应的影响很小。 。在相同的反应温度下，吸附法的碳转化率比加成法大10％。从SEM分析，可以看出铁颗粒影响焦炭溶液损失反应的机理在两种加载方式下是不同的。在添加方法中，一些铁颗粒包裹在焦炭孔壁基质中，因此它们无法发挥作用。在吸附过程中，铁颗粒均匀地分布在焦炭表面，提供更有效的催化活性中心。另外，当通过添加方法装载铁颗粒时，它们参与焦炭形成，这影响焦炭结构，然后影响焦炭溶液损失反应。吸附法中的铁颗粒在焦炭溶液损失反应中起催化作用。
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