光度滴定法测定石油馏分与石油产品中碱性氮含量  

DETERMINATION OF BASIC NITROGEN IN PETROLEUM DISTILLATES AND PETROLEUM PRODUCTS BY PHOTOMETRIC TITRATION

作　　者：杨孟智 史军歌[1] 蔺玉贵[1] 韩熹微 王玉睿涵 Yang Mengzhi;Shi Junge;Lin Yugui;Han Xiwei;Wang Yuruihan(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》2022年第10期100-104,共5页Petroleum Processing and Petrochemicals

摘　　要：石油馏分与石油产品中的碱性氮含量是石油炼制及加工过程中的重要参数,针对现行标准方法应用过程中存在的问题,建立了光度滴定法测定石油馏分中碱性氮含量的方法。结果表明,多种样品采用光度滴定法测定的结果与现行标准方法测定结果有很好的一致性,测定苯胺的加标回收率为93%~110%。光度滴定法在保证准确度的基础上实现了分析过程的自动化,扩大了样品适用范围,提升了试验环境友好性,为石油馏分及石油产品碱性氮含量的测定提供了一个较好的分析方法。The basic nitrogen in petroleum distillates and petroleum products is an important parameter in petroleum processing.A novel method based on photometric titration was established in order to solve the problems found in the application of the current standard method.The results showed that the test results of many samples determined by photometric titration were in good agreement with the current standard methods.The recovery rate by standard addition of aniline was 93%-110%.On the basis of ensuring the accuracy,the developed method realizes the automation of the analysis process,expands the applicable range of samples,and improves the environmental friendliness.It provides a better analytical method for determination of basic nitrogen in petroleum distillates and petroleum products.

关 键 词：碱性氮 光度滴定法 石油馏分 石油产品 

分 类 号：TE626[石油与天然气工程—油气加工工程] O657.3[理学—分析化学]