Yaohong Zhao, Yihua Qian, Siwei Pan, Li Li, W. Su, Qibin Xia
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Study of Corrosive Sulfur Adsorption by Modified $\gamma-\text{Al}_{2}\mathrm{O}_{3}$
As the key equipment of power transmission and transformation system, the reliability of power transformer is directly related to the safe and stable operation of power system. In recent years, sulfur compounds in mineral insulating oil makes the transformers in high risk, since these sulfur compounds can react with copper windings to produce semi-conductive Cu2S species. This work mainly involved with the study of adsorption removal of sulfur compound from insulating oil by metal modified $\gamma-\text{Al}_{2}\mathrm{O}_{3}$ molding powder. The adsorption mechanism explained by TPD experiment suggested that the activation energy of DBDS desorption from modified $\gamma-\text{Al}_{2}\mathrm{O}_{3}$ was much higher than that of active carbon.
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