文献类型：期刊文献

中文题名：活性炭对润滑油中磨损元素吸附性能的研究

英文题名：The Adsorption Performance of Wear Elements in Lubricant by Activated Carbon

作者：徐茹婷[1] 赵剑[1] 孙康[1] 卢辛成[1] 张燕萍[1] 蒋剑春[1]

第一作者：徐茹婷

机构：[1]中国林业科学研究院林产化学工业研究所,江苏省生物质能源与材料重点实验室,国家林业和草原局林产化学工程重点实验室,林木生物质低碳高效利用国家工程研究中心,江苏省林业资源高效加工利用协同创新中心,江苏南京210042

年份：2022

卷号：42

期号：4

起止页码：25-32

中文期刊名：林产化学与工业

外文期刊名：Chemistry and Industry of Forest Products

收录：CSTPCD;;Scopus;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：国家重点研发计划资助项目(2019YFD1100604)。

语种：中文

中文关键词：润滑油;磨损元素;活性炭;比表面性质;吸附性能

外文关键词：lubricant;wear elements;activated carbon;surface properties;adsorption performance

分类号：TQ35

摘要：以不同活性炭为吸附剂,在对活性炭进行常规指标、比表面积及孔结构、FT-IR、XPS和表面官能团分析的基础上,研究活性炭的孔径分布和表面性质对模拟润滑油中磨损元素吸附效果的影响。研究结果表明:活性炭的中孔孔容和表面羟基、羧基含量是影响吸附效果的关键因素,随着活性炭中孔孔容及表面羟基和羧基含量的增加,其对模拟润滑油中磨损元素的吸附效果不断提升。6种活性炭中,AC4对磨损元素的去除效果最佳,其中孔孔容达0.901 cm~3/g,羧基和羟基总量达0.9292 mmol/g。在吸附温度80℃、吸附时间60 min、活性炭添加量5%的最佳吸附工艺下,AC4对模拟润滑油中的Fe、Cu、Pb、Al去除率均大于95%。活性炭对磨损元素的去除效果显著优于木屑、活性白土、硅胶和机油滤芯用滤纸,表明活性炭可作为优良废润滑油再生吸附剂,也可用作高性能机油滤芯材料。
By using different activated carbons as adsorbents, the effects of pore size distribution and surface properties on the adsorption capacity of activated carbon for lubricant wear elements were studied, which based on the analysis of activated carbon by basic properties, specific surface area and pore structure, FT-IR, XPS and surface functional group analysis. The results showed that the mesopore volume and the contents of carboxyl and hydroxyl groups of activated carbon were the key factors affecting the adsorption capacity. Moreover, the adsorption effect of activated carbon on wear elements in simulated oil continuously increased with the increasing of the mesopore volume and the content of carboxyl and hydroxyl groups. Among the six kinds of activated carbons, AC4 with a mesopore volume of 0.901 cm~3/g and a total carboxyl and hydroxyl group contents of 0.929 2 mmol/g, exhibited the best wear elements removal performances. Under the optimal adsorption conditions of temperature 80 ℃, adsorption time 60 min and additive amount of activated carbon 5%, the removal rates of Fe, Cu, Pb and Al in the simulated lubricant by AC4 were more than 95%. The removal effect of wear elements by activated carbon was significantly better than that of sawdust, activated clay, silica gel and filter paper, indicating that activated carbon could be used as an excellent adsorbent for waste lubricating oil regeneration and the high-performance material of oil filter.