紫外吸收光谱法测定天然气中硫化氢含量国际标准进展  

Progress of international standards for the determination of hydrogen sulfide content in natural gas by UV absorption method

作　　者：沈琳 周理[1,2,3] 宋柯静 敬豪[1,2,3] 刘冬 SHEN Lin;ZHOU Li;SONG Kejing;JING Hao;LIU Dong(Research Institute of Natural Gas Technology,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan,China;Key Laboratory of Natural Gas Quality Control and Energy Measurement,State Administration for Market Regulation,Chengdu,Sichuan,China;Key Laboratory of Natural Gas Quality Control and Energy Measurement,CNPC,Chengdu,Sichuan,China;Central Sichuan Oil and Gas District,PetroChina Southwest Oil&Gasfield Company,Suining,Sichuan,China)

机构地区：[1]中国石油西南油气田公司天然气研究院 [2]国家市场监督管理总局重点实验室(天然气质量控制和能量计量) [3]中国石油天然气集团公司天然质量控制和能量计量重点实验室 [4]中国石油西南油气田公司川中油气矿

出　　处：《石油与天然气化工》2025年第1期142-148,共7页Chemical engineering of oil & gas

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目“天然气科技创新与标准融合发展模式与示范应用”(2023DQ0108-21)。

摘　　要：目的探索天然气分析方法国际标准制定过程,分享国际标准ISO 11626:2024《天然气含硫化合物的测定用紫外吸收光谱法测定硫化氢含量》制定经验,规范该技术在国际领域的应用。方法对采用色谱柱预分离的间接检测技术和无需色谱分离直接检测的两种检测原理的紫外吸收光谱法的检测限、准确性、精密度进行实验研究。结果验证了紫外吸收光谱法具备准确、快速检测天然气中H2S含量的能力,总结了制定紫外吸收光谱法测定天然气中H2S含量国际标准的经验。结论提出的国际标准制定历程对今后天然气中含硫化合物含量的国际标准化分析工作思路具有参考意义。Objective Exploring the international standard formulation process for natural gas analysis methods,sharing the experience in formulating the international standard ISO 11626:2024 Natural gas—Determination of sulfur compounds—Determination of hydrogen sulfide content by UV absorption method and regulating the application of this technology in the international field.Method The experimental research was conducted on the detection limits,accuracy,and precision of the UV absorption method for two detection principles:one that employs chromatography column pre-separation and indirect detection technology,and another technology that allows direct detection without chromatography separation.Result The paper verifies the ability of UV absorption method to accurately and rapidly detect hydrogen sulfide content in natural gas,and summarizes the experience of formulating international standards for the determination of hydrogen sulfide content in natural gas by UV absorption method.Conclusion The proposed process of formulating international standards has reference significance for the international standardization of the analysis of sulfur-containing compounds in natural gas in the future.

关 键 词：天然气 硫化氢 紫外吸收光谱法 在线检测 国际标准 

分 类 号：TE642[石油与天然气工程—油气加工工程] O657.32[理学—分析化学]