摘要
为将粉煤灰吸附剂应用到废润滑油的吸附再生中,预处理原状粉煤灰,配置以水为吸附质的废润滑油,考察粉煤灰对废润滑油中水的吸附热力学特性。结果表明:预处理后粉煤灰以孔隙较小的介孔和微孔结构为主,比表面积为10.45m2/g;粉煤灰的平衡吸附量随着平衡浓度的增加而增加,随温度的升高而升高;吸附过程为以范德华力为主的物理吸附,是不可逆的自发过程和吸热过程,升温有利于吸附的进行。
In order to apply the adsorbents of flyash to the regeneration of waste lubricating oil,original flyash was pretreated and waste oil with the unique adsorbent of water was equipped.The equilibrium thermodynamics of the adsorption process were explored.Experiment results showed that pretreated flyash with specific surface area of 10.45m2/g was primarily composed of micropore and mesopore structure.With the increasing of the equilibrium concentration and the rising of temperature,the equilibrium adsorption from the flyash got increasing,and adsorption process was irreversibly spontaneous,endothermic and given priority to with van der Waals force.The temperature rising was advantageous to the adsorption.
作者
欧阳平
范洪勇
张贤明
陈凌
王家序
OUYANG Ping FAN Hongyong ZHANG Xianming CHEN Ling LIU Xianbing WANG Jiaxu(Engineering Research Center {or Waste Oil Recovery Technology and Equipment o{ Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, China Postdoctoral Reseach Station of Mechanical Engineering, Chonqing University, Chongqing 400044, China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2017年第3期3063-3067,3071,共6页
Journal of Functional Materials
基金
中国博士后科学基金资助项目(2015M582524
2015M582523)
重庆市科委资助项目(cstc2013jcyja50025
cstc2014yykfB90002)
重庆市教委资助项目(KJ1400637
KJZH14210)
关键词
粉煤灰
吸附
废润滑油
再生
热力学
flyash
adsorption
waste lubricating oil
regeneration
thermodynamics
