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针对汽油产品中硫醇的分析问题进行了讨论 ,包括不同硫醇博士法含硫试验的灵敏度、烯烃对硫醇测定的影响以及产品标准中博士法含硫试验和电位滴定的关系等 ,并采用气相色谱法对催化裂化汽油中的单体硫醇进行了表征。从试验结果看 ,采用电位滴定法确定硫醇硫的含量比博士法含硫试验更客观一些。
In this paper, the analysis of mercaptan in gasoline products is discussed, including the sensitivity of different thiophanols containing sulfur test, the influence of olefins on the determination of mercaptans and the relationship between the sulfur content test and potentiometric titration in the product standard. Gas chromatography was used to characterize the monomer mercaptans in FCC gasoline. From the test results, the use of potentiometric titration to determine the content of thiols Sulfur test than the doctoral method is more objective.