石油与天然气化工2025，Vol.54Issue(2)：126-130,5.DOI:10.3969/j.issn.1007-3426.2025.02.018
基于质量平衡法的加臭剂四氢噻吩品质鉴定方法
Quality identification method of odorant tetrahydrothiophene based on mass balance method
摘要
Abstract
Objective The study aims to standardize and enhance the quality identification method of organic sulfur compound odorant for natural gas and solve the technical problems of single gas chromatography with inaccuracies in qualitative determination and incomprehensiveness in quantitative determination.Method The qualitative analysis of tetrahydrothiophene odorant was conducted using gas chromatography-mass spectrometry(GC-MS).The content of organic compounds,moisture,and metal inorganic impurities in tetrahydrothiophene odorant were determined respectively by mass balance method combined with gas chromatography,Karl Fischer method and inductively coupled plasma mass spectrometry(ICP-MS),with the result that the purity of tetrahydrothiophene odorant was calculated.Result The match rate between the tetrahydrothiophene qualitative analysis spectrogram and the standard spectrogram was more than 96%.The mass balance method overcomes the disadvantage that the principal component content could not be accurately determined due to the difference of response values caused by different physicochemical properties of different substances,and the final purity quantitative analysis results reached 99.703%.Conclusion The quantitative results of purity are consistent with the nominal values of standard materials,which proves that the method is accurate and reliable,and can be used as a quality identification method for organic sulfur compounds odorant.关键词
质量平衡法/加臭剂/四氢噻吩/有机硫化合物/品种定性分析/纯度定量分析/品质鉴定Key words
mass balance method/odorant/tetrahydrothiophene/organic sulfur compound/variety qualitative analysis/purity quantification analysis/quality identification引用本文复制引用
宋超凡,张苏敏,吴岩,李海川,刘仁红,李志昂..基于质量平衡法的加臭剂四氢噻吩品质鉴定方法[J].石油与天然气化工,2025,54(2):126-130,5.基金项目
四川省科技计划项目"科技创新人才项目"(2024TDRC0003) （2024TDRC0003）
国家管网集团西气东输分公司"气质分析国产化设备性能评价项目"(GWHT20210041828) （GWHT20210041828）
