润滑油基础油分子结构与黏度指数构效关系研究  

CORRELATION OF MOLECULAR STRUCTURE AND VISCOSITY INDEX OF BASE OIL

作　　者：宋春侠[1] 张智华 刘颖荣[1] 王威[1] 刘泽龙[1] Song Chunxia;Zhang Zhihua;Liu Yingrong;Wang Wei;Liu Zelong(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2020年第6期1-5,共5页Petroleum Processing and Petrochemicals

摘　　要：为了全面、准确地揭示润滑油基础油(简称基础油)分子结构与黏度指数的构效关系,结合高分辨质谱和核磁共振波谱技术,提出更准确的基础油分子结构表征参数,并建立其与异构脱蜡基础油黏度指数的关联。结果表明,基础油黏度指数随着链状结构平均碳数的增加而增加,随着多环环烷碳分率和异构程度的增加而降低。根据黏度指数与结构表征参数的构效关系,为生产高黏度指数基础油的原料选择、工艺条件优化及馏程切割等提供解决方案。The structure-activity relationship between molecular structure and viscosity index of lubricating base oil was revealed comprehensively and accurately through the proposed molecular structure parameters measured by high resolution mass spectrometry and nuclear magnetic resonance.It was demonstrated that VI increased with increasing average carbon number of the alkyl chain structure and lowered with increase of polycyclic naphthene carbons and iso normal ratio.The structure-activity relationship between viscosity index and structural characterization parameters provides solutions for the selection of raw materials,optimization of process conditions and cutting of distillation range for the production of high-viscosity index base oil.

关 键 词：润滑油基础油 质谱 核磁共振 分子结构表征 黏度指数 

分 类 号：TE626.9[石油与天然气工程—油气加工工程]