润滑油潜含量测定中低毒脱蜡溶剂的选择

石油炼制与化工 ›› 2012, Vol. 43 ›› Issue (2): 41-45.

润滑油潜含量测定中低毒脱蜡溶剂的选择

朱鸣岗,田松柏,曹谊华,蔺玉贵

中国石化石油化工科学研究院，北京 100083

收稿日期:2011-06-24 修回日期:2011-09-15 出版日期:2012-02-12 发布日期:2012-01-30
通讯作者: 田松柏 E-mail:tiansb.ripp@sinopec.com

A SELECTION OF LOW POISONOUS SOLVENT FOR DETERMINING POTENTIAL CONTENT OF LUBRICATING OIL

Received:2011-06-24 Revised:2011-09-15 Online:2012-02-12 Published:2012-01-30

摘要/Abstract

摘要： 针对润滑油潜含量测定方法RIPP9－1990中使用的丙酮-苯-甲苯混合溶剂挥发性大、毒性较高的情况，采用低毒的丁酮-甲苯混合溶剂作为减压蜡油的脱蜡溶剂进行实验研究。根据脱蜡油收率随溶剂组成的变化确定了丁酮-甲苯的适当组成，并且采用不同原油的减压蜡油（VGO）对新、旧两种脱蜡溶剂进行了对比考察。结果表明，由新、旧两种溶剂得到的脱蜡油在性质和质谱组成上基本一致，因而可以用低毒的丁酮-甲苯（体积比60：40）混合脱蜡溶剂替代RIPP9－1990方法中毒性较高的丙酮-苯-甲苯混合脱蜡溶剂。

关键词: 润滑油潜含量 , 脱蜡 , 蜡含量 , 质谱组成

Abstract: An investigation of selecting less poisonous dewaxing solvent (butanone/toluene) to substitute the conventional dewaxing solvent (acetone/benzene/toluene), which is more volatile and poisonous, in the determination of lubricating oil potential content (RIPP9-90) was carried out. A suitable proportion of butanone to toluene was obtained based on the variation of dewaxed oil yield with the mixed solvent composition. The dewaxing processes of VGO samples from various crude oils using this less poisonous solvent and the conventional one were conducted and qualities of these obtained dewaxed oil samples were compared. It was found that their properties and compositions (by mass spectrometry) were very close. Therefore, in the determination of lubricating oil potential content (RIPP9-90), the conventional dewaxing solvent could be substituted by this less poisonous one with butanone/toluene volume ratio of 60:40.

Key words: potential content of lubricating oil, dewaxing, wax content, mass spectrometry composition

朱鸣岗田松柏曹谊华蔺玉贵. 润滑油潜含量测定中低毒脱蜡溶剂的选择[J]. 石油炼制与化工, 2012, 43(2): 41-45.