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Influence of Conductivity of Slag on Decarburization Reaction

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International Journal of Minerals,Metallurgy and Materials 1998年第1期12卷 20-22页

作者： Xionggang Lu Fushen Li Lifen Li kouchih chou (Laboratory on Solid Electrolytes and Metallurgical Testing Techniques, University of Science and Technology Beijing, Beijin 100083, China) Laboratory on Solid Electrolytes and Metallurgical Testing Techniques University of Science and Technology Beijing Beijing 100083 China

By altering the electrochemical properties of slag, the decarburization reaction of Fe3+-based slag withFe-C droplet was studied. The results showed that a lot of free electrons and holes exist in the slag containing transition metal oxides (such as TiO2 and Fe2O3). So electronic conduction in the slag increases. Finally, it led to the increment of the decarburization reaction rate between slag and Fe-C droplet, and mass fraction of carbon remaining indroplet decreases to a lower level.

关键词： smelt slag electronic conductivity decarburization reaction

Electrochemical Characteristic of Decarburization Reaction

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International Journal of Minerals,Metallurgy and Materials 1999年第1期13卷 27-30页

作者： Xionggang Lu Fushen Li Lifen Li kouchih chou (Applied Science School, University of Science and Technology Beijing, Beijing 100083, China)(Material Science and Engineering School, Shanghai University, Shanghai 200072, China) Applied Science School University of Science and Technology Beijing Beijing 100083 China Material Science and Engineering School Shanghai University Shanghai 200072 China

The electrochemical mechanism of the reaction between Fe-C melts and CaO-SiO2-Al2O3-FeOx slag systems has been carried out. The experimental results suggest that the final content of carbon in melt increases as the partial oxygen pressure of gas decreases no matter whether there is electronic conductor or not. However, the final content of carbon in the system with electronic conductor is much lower than that without electronic conductor. It can be deduced that the transfer ability of oxygen in slag is dominated by electrons. When an electronic conductor exists, an easy pathway for the electrons is provided and the oxygen transfer rate is accelerated.

关键词： melt-slag reaction decarburization electrochemistry electronic conductor

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ZrO_2高温固态电极交换电流密度的研究

无机材料学报 1997年第4期12卷 531-535页

作者：鲁雄刚李福燊李丽芬周国治北京科技大学物理化学系北京100083

利用对称电池M，MxOy|ZrO2（MgO）|M，MxOy在高温下对固态参比电极的极化特征进行了研究．实验研究表明，在本实验的条件下，极化电流与超电势之间为线性关系．Mo／MoO2参比电极的交换电流密度远大于Cr／Cr2O3、Ni／NiO、Co／CoO参比电... 详细信息

利用对称电池M，MxOy|ZrO2（MgO）|M，MxOy在高温下对固态参比电极的极化特征进行了研究．实验研究表明，在本实验的条件下，极化电流与超电势之间为线性关系．Mo／MoO2参比电极的交换电流密度远大于Cr／Cr2O3、Ni／NiO、Co／CoO参比电极的交换电流密度．电极交换电流密度随参比电极中金属含量的增加及温度的升高而增大．根据实验测试得到了电极反应的活化能．

关键词：氧化锆固态参比电极交换电流密度电极电解质

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焦油裂解制氢催化剂研究进展

工业催化 2007年第12期15卷 10-14页

作者：程红伟鲁雄刚丁伟中周国治上海大学材料科学与工程学院上海200072

高温焦炉煤气中焦油的催化裂解是高效利用焦炉煤气的重要环节。对焦油裂解催化剂包括天然矿石催化剂和人工合成催化剂的研究现状进行了总结和分析,并展望了焦油裂解催化剂的发展趋势。采用添加助催化剂、优化预处理条件、合理选择载体... 详细信息

高温焦炉煤气中焦油的催化裂解是高效利用焦炉煤气的重要环节。对焦油裂解催化剂包括天然矿石催化剂和人工合成催化剂的研究现状进行了总结和分析,并展望了焦油裂解催化剂的发展趋势。采用添加助催化剂、优化预处理条件、合理选择载体以及改善催化剂的结构等改性措施,可以有效提高催化剂的活性、减少积炭和增强其抗中毒的能力,从而达到延长其寿命的目的。通过"嫁接"单一催化剂的优点对多种催化剂进行整合,并科学利用材料领域的最新科研成果(如以碳纳米管作为载体),有望在催化剂的创新开发上获得突破。

关键词：焦炉煤气焦油催化裂解