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1. Kinetics of corrosive sulfur adsorption in transformer oil with Ag-Y, Ce-Y and Cu-Y zeolites | |||
Jun Hu,Deliang He,Tao wan,Huibin Lei,Yao Lu,Houqiang Huang | |||
Chemical Engineering 22 May 2018 | |||
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Abstract:The Ag-Y, Ce-Y and Cu-Y zeolites were successfully prepared for removing corrosive sulfur from transformer insulating oil. The adsorptions and kinetics of corrosive sulfur on Ag-Y, Ce-Y and Cu-Y were studied, and activation energies (Ea) of adsorption processes were calculated. The results show that the desulfurization properties of these three adsorbents were Ag-Y > Ce-Y > Cu-Y, and 0.5wt% Ag-Y adsorption capacity of DBDS and NDM was up to 15.2mg/g and 18.8mg/g respectively. The kinetics for the adsorption process can be described by pseudo-second-order model and adsorption rate constants increase with an increase of temperature, indicating the endothermic nature of the adsorption. The adsorption process on Ag-Y was dominated by chemical adsorption, whereas the adsorption process on Ce-Y was dominated by physical adsorption, and the adsorption on Cu-Y was performed simultaneously by chemical and physical adsorption. | |||
TO cite this article:Jun Hu,Deliang He,Tao wan, et al. Kinetics of corrosive sulfur adsorption in transformer oil with Ag-Y, Ce-Y and Cu-Y zeolites[OL].[22 May 2018] http://en.paper.edu.cn/en_releasepaper/content/4745164 |
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