摘要
炼油设备设计计算、石油产品物性的关联及研究石油产品化学组成时,迫切需要对含有的化合物平均相对分子质量加以表征,SH/T0583—1994标准方法被用于测定烃类物质的相对分子质量,其工作原理是采用蒸气压力渗透法测定。为了使本领域内技术人员掌握和了解烃类相对分子质量测定过程中所产生的不确定度,更好地服务于科学研究和生产实际,提升对该标准方法不确定度的评定水平,填补烃类相对分子质量不确定度评定的空白,介绍了烃类相对分子质量在组成研究及化学计量学中的作用,对其测定原理进行阐述,并重点给出烃类相对分子质量的不确定度评定过程,分析烃类相对分子质量不确定度的影响因素,并给出烃类相对分子质量测定合成不确定度。
During designing and calculating of refining equipment,studying of correlating the physical properties of petroleum products and the chemical composition of petroleum products,there is an urgent need to characterize the average relative molecular weight of the compounds contained.The SH/T 0583—1994 standard method is used to determine the relative molecular weight of hydrocarbon substances.The working principle of the method is to use the vapor pressure permeation method.In order to make technicians in this field master and understand the uncertainty generated in the process of determining the relative molecular weight of hydrocarbons,better serve scientific research and production practice,improve the evaluation level of the uncertainty of this standard method,and fill in the blank of the uncertainty evaluation of the relative molecular weight of hydrocarbons,the role of relative molecular weight of hydrocarbons in composition research and chemometrics was introduced,its measurement principles were expounded,and the uncertainty evaluation process of relative molecular weight of hydrocarbons was discussed,the influencing factors of uncertainty of relative molecular weight of hydrocarbons were analyzed,and the synthetic uncertainty of measurement of relative molecular weight of hydrocarbons was obtained.
作者
王家兴
张会成
高波
刘嘉琪
陈益民
WANG Jia-xing;ZHANG Hui-cheng;GAO Bo;LIU Jia-qi;CHEN Yi-min(Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co.,Ltd.,Dalian Liaoning 116045,China)
出处
《当代化工》
CAS
2023年第10期2462-2465,共4页
Contemporary Chemical Industry
关键词
计量学
烃类相对分子质量
不确定度
蒸气压力渗透
Metrology
Relative molecular weight of hydrocarbons
Uncertainty
Vapor pressure permeation
