退役绝缘油的催化加氢-改性壳聚糖吸附精制工艺研究  

Research on refining technology for retired insulating oil via catalytic hydrogenation and adsorption with modified chitosan

作　　者：黄琬祎 任乔林 张逸 黄文涛 黄旦莉 汤迎春 任贝婷 蔡世腾 HUANG Wanyi;REN Qiaolin;ZHANG Yi;HUANG Wentao;HUANG Danli;TANG Yingchun;REN Beiting;CAI Shiteng(School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068 China;State Grid Hubei Electric Power Company Xiaogan Power Supply Company,Xiaogan 432009,China;School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430205,China)

机构地区：[1]湖北工业大学电气与电子工程学院,湖北武汉430068 [2]国网湖北省电力公司孝感供电公司,湖北孝感432009 [3]武汉工程大学化工与制药学院,湖北武汉430205

出　　处：《绝缘材料》2024年第12期92-97,共6页Insulating Materials

基　　金：国网湖北省电力公司科技项目(5215K0160007)。

摘　　要：针对退役变压器绝缘油的精制及再生问题,本文通过催化加氢法对退役变压器油进行脱色处理,在此基础上采用聚乙二醇改性壳聚糖吸附工艺去除腐蚀性硫和重金属铜离子,实现退役变压器油的再生。结果表明:当催化加氢温度为220℃、反应压力为4 MPa、氢油体积比为300∶1时,可使退役变压器油达到脱色目的;利用自制的改性壳聚糖-聚乙二醇的复合吸附材料(CS-PEG)可快速脱除油样中的腐蚀性硫和金属铜离子。利用本工艺处理退役变压器油,可使油品透明,酸值降至0.003 mg(KOH)/g,击穿电压值可达45 kV,介质损耗因数降至0.001以下,该工艺具有良好的应用潜力。Aiming at the refining and regeneration issues of retired transformer insulating oil,we used catalytic hydrogenation to decolorize retired transformer oil.Based on this,polyethylene glycol modified chitosan adsorption process was used to remove corrosive sulfur and heavy metal copper ions,and achieve the regeneration of retired transformer oil.The results show that when the catalytic hydrogenation temperature is 220℃,the reaction pressure is 4 MPa,and the volume ratio of hydrogen to oil is 300∶1,the retired transformer oil can achieve decolorization.The self-made modified chitosanpolyethylene glycol composite adsorbent material(CS-PEG)can quickly remove the corrosive sulfur and metal copper ions from oil samples.After being treated by this process,the retired transformer oil becomes transparent,its acid value decreases to 0.003 mg(KOH)/g,the breakdown voltage reaches 45 kV,and the dielectric loss factor drops below 0.001.This process has good potential for application.

关 键 词：变压器油 催化加氢 吸附 减排 

分 类 号：TM214[一般工业技术—材料科学与工程]