Ag-Y,Ce-Y和Cu-Y对变压器油中腐蚀性硫的吸附动力学研究

胡君; 何德良; 万涛; 雷辉斌; 陆瑶; 黄后强

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Kinetics of corrosive sulfur adsorption in transformer oil with Ag-Y, Ce-Y and Cu-Y zeolites

首发时间：2018-05-30

Jun Hu ^{1
2}
Jun Hu(1993-),Female,Master,Corrosion and protection of Electrical Equipment
Deliang He
Deliang He(1969-),Male,Professor,Ph.D.,Corrosion and Electrochemistry
Tao wan Huibin Lei Yao Lu Houqiang Huang

1、College of Chemistry and Chemical Engineering，Hunan University,410082
2、 Hunan Electric Power Corporation Research Institute, Changsha,410007

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.

keywords： Zeolites Adsorption kinetics Corrosive sulfur Activation energies Transformer oil

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Ag-Y,Ce-Y和Cu-Y对变压器油中腐蚀性硫的吸附动力学研究

胡君 ¹
Jun Hu(1993-),Female,Master,Corrosion and protection of Electrical Equipment
何德良 ¹
Deliang He(1969-),Male,Professor,Ph.D.,Corrosion and Electrochemistry
万涛 ² 雷辉斌 ¹ 陆瑶 ¹ 黄后强 ¹

1、化学化工学院，湖南大学，410082
2、湖南电力公司研究院，长沙，410007

摘要：采用液相离子交换成功制备了Ag-Y、Ce-Y 和Cu-Y分子筛。研究了Ag-Y、Ce-Y和Cu-Y对腐蚀性硫的吸附过程，并计算了吸附的活化能(Ea)。结果表明，三种吸附剂的脱硫性能是Ag-Y > Ce-Y > Cu-Y，其中0.5wt%Ag-Y对DBDS和NDM的吸附容量分别高达15.2mg/g和18.8mg/g。这些吸附过程的动力学都可以用伪二阶模型很好地描述，吸附速率常数随温度的升高而增加，说明吸附过程的吸热性质。Ag-Y吸附腐蚀性硫的过程以化学吸附为主，Ce-Y的吸附过程以物理吸附为主，Cu-Y的吸附过程是化学吸附和物理吸附同时控制的。

关键词：分子筛; 吸附动力学腐蚀性硫活化能变压器油

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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[EB/OL]. Beijing:Sciencepaper Online[2018-05-30]. https://www.paper.edu.cn/releasepaper/content/201805-275.

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论文编号	201805-275
论文题目	Ag-Y,Ce-Y和Cu-Y对变压器油中腐蚀性硫的吸附动力学研究
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