浅谈天然气中硫化合物在线分析预处理技术  

Study on pretreatment technology for online analysis of sulfide in natural gas

作　　者：朱华东 王海洋[3] 王宏莉 李永振 唐纯洁[1,2] 蒲长胜 Zhu Huadong;Wang Haiyang;Wang Hongli;Li Yongzhen;Tang Chunjie;Pu Changsheng(Research Institute of Natural Gas Technology,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan,China;Natural Gas Quality Control and Energy Measurement Key Laboratory,CNPC,Chengdu,Sichuan,China;China Shipping Fujian Natural Gas Co.,Ltd.,Pu tian,Fujian,China;Natural Gas Purification Plant of Northwestern Sichuan Gas District,PetroChina Southwest Oil&Gasfield Company,Chengdu,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]中国石油天然气集团公司天然气质量控制与能量计量重点实验室 [3]中海福建天然气有限责任公司 [4]中国石油西南油气田公司川西北气矿天然气净化厂

出　　处：《石油与天然气化工》2022年第1期104-109,共6页Chemical engineering of oil & gas

基　　金：中国石油西南油气田公司科学研究与技术开发项目“便携式LNG取样系统应用研究”(20210308-06);中国石油天然气股份有限公司科技项目“天然气质量控制和能量计量实验新方法研究及运行管理”(2020D-5006-83)。

摘　　要：目的在天然气气质升级的新形势下,研究硫化合物在线分析预处理系统的适应性。方法调研并总结了我国西南地区代表性天然气在线分析预处理配置及运行情况,并比对研究了现有预处理装置与钝化处理的天然气在线分析预处理系统的硫化合物吸附性能。结果现有预处理装置基本满足硫化合物在线分析的需求,钝化处理的预处理系统抗硫吸附性能明显占优,抗硫吸附效率达到75%以上,经过2~3 h老化后可达到吸附平衡。结论建议在日常生产质量控制及要求不高的情况下采用现有预处理装置,在具有争议的交接界面将钝化处理的预处理系统作为优选方案。Objective The adaptability of pretreatment system for sulfide online analysis is studied under the situation of natural gas quality upgrade.Methods The pretreatment configuration and operation status of representative natural gas online analysis in Southwest China are investigated and summarized.The anti-sulfide adsorption performances of existing pretreatment device and passivated online analysis pretreatment system are comparatively researched.Results The anti-sulfur adsorption performance of the novel system is significantly improved,and the anti-sulfur adsorption efficiency reaches more than 75%,adsorption equilibrium can be reached after about 2 to 3 hours of aging.Conclusions It is recommended that the current pretreatment device should be used in daily production quality control,and the anti-sulfur adsorption pretreatment system is used as a preferred scheme at the controversial interface.

关 键 词：天然气 硫化氢 在线分析预处理 抗硫吸附 

分 类 号：TE644[石油与天然气工程—油气加工工程]