Diester Derivatives from Chemically Modified Waste Cooking Oil as Substitute for Petroleum Based Lubricating Oils  

作　　者：Xiang Shuo Chen Ligong Xu Lan Li Liang Yang Xin Zhu Liye 

机构地区：[1]Department of Military Oil Application & Management Engineering, Logistical Engineering University of PLA [2]School of Chemistry and Chemical Engineering, Southwest University [3]Oil Technical Supervision Office, Logistical Department of Chengdu Military Area

出　　处：《China Petroleum Processing & Petrochemical Technology》2015年第2期76-83,共8页中国炼油与石油化工（英文版）

基　　金：the financial support from the Natural Science Foundation of Chongqing(Project No.cstc2014jcyj A90013)

摘　　要：In order to provide a new way for waste cooking oil(WCO) resource utilization, several diester derivatives were obtained from WCO through a three-step chemical modifications, viz.: transesterification, epoxidation and oxirane ring opening with carboxylic acids. The effects of the chain length of side chain groups on the viscosity, acid value, low temperature fluidity, thermo-oxidative stability, tribological properties and surface tension of diester derivatives were investigated. The results showed that increasing the chain length of side chain groups had a positive influence on the viscosity, viscosity index, acid value, pour point, friction coefficient and wear scar diameter along with a negative influence on the oxidation onset temperature, volatile loss, insoluble deposit, maximum non-seizure load and surface tension. These diester derivatives exhibited improved physicochemical and tribological properties that make themselves promising environmentally friendly biolubricant basestocks.In order to provide a new way for waste cooking oil （WCO） resource utilization, several diester derivatives were obtained from WCO through a three-step chemical modifications, viz.： transesterification, epoxidation and oxirane ring opening with carboxylic acids. The effects of the chain length of side chain groups on the viscosity, acid value, low temperature fluidity, thermo-oxidative stability, tribological properties and surface tension of diester derivatives were investigated. The results showed that increasing the chain length of side chain groups had a positive influence on the viscosity, viscosity index, acid value, pour point, friction coefficient and wear scar diameter along with a negative influence on the oxidation onset temperature, volatile loss, insoluble deposit, maximum non-seizure load and surface tension. These diester derivatives exhibited improved physicochemical and tribological properties that make themselves promising environmentally friendly biolubricant basestocks.

关 键 词：waste cooking oil diester derivative lubricating oil physicochemical property tribological property 

分 类 号：TE666[石油与天然气工程—油气加工工程]