J4 ›› 2011, Vol. 28 ›› Issue (6): 720-725.

• 激光应用 • 上一篇    下一篇

基于激光吸收光谱天然气脱硫中H2S检测系统研究

于殿强1 董金婷1 王立明2 张帅2 陈莉1 何莹2 张玉钧2   

  1. 1 胜利油田胜利勘察设计研究院有限公司,山东 东营 257026; 
    2 中国科学院安徽光学精密机械研究所, 中国科学院环境光学与技术重点实验室,安徽 合肥 230031
  • 收稿日期:2011-09-05 修回日期:2011-09-08 出版日期:2011-11-28 发布日期:2011-11-14
  • 通讯作者: 于殿强,高级工程师,主要从事油田地面工程的设计与应用,油田地面工程自动检测与控制系统的研究。 E-mail:sleccydq@sina.com
  • 基金资助:

    中石化重大装备国产化项目"高含硫天然气硫化氢激光检测成套装备"(W09019)

H2S monitoring system in natural gas desulfurization based on the laser absorption spectroscopy

YU Dian-Qiang1, DONG Jin-Ting1, WANG Li-Ming2, ZHANG Shuai2, CHEN Li1, HE Ying2, ZHANG Yu-Jun2   

  1. 1 Shengli Engineering Design and Consulting Co. Ltd., Dongying 257026, China; 
    2 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
  • Received:2011-09-05 Revised:2011-09-08 Published:2011-11-28 Online:2011-11-14

摘要:

硫化氢气体浓度的连续监测是脱硫装置中必不可少的部分。提出了一种基于激光吸收光谱技术的天然气脱硫H2S测量系统设计方案,为满足现场高灵敏检测的要求,研制了紧凑型多次反射Herriot气体吸收池模块放置在脱硫塔现场,采用单模光纤传输激光和光电探测器信号直接远距离传输至控制室处理的方式,使得系统具有本质安全的特征。系统在胜利油田某集气站脱硫塔进行了现场检测,结果表明,检测下限为300 ppb,运行稳定可靠,满足天然气脱硫H2S检测的需要。

关键词: 光谱学, 硫化氢检测, 激光吸收光谱, Herriot吸收池, 天然气脱硫

Abstract:

It is essential to monitor continuously the concentration of H2S in the procedure of natural gas desulfurization. The design of monitoring system based on the laser absorption spectroscopy to measure H2S in desulfurization was presented. In order to realize high sensitive measurement, the compact Herriot multi reflection gas absorption cell was developed, which is placed near the desulfurization tower. The detection system is characterized by signal of detector transferred directly to the analysis room. The experiments were carried out in the gas gathering station in Shandong Province. The results show that the detection limit is 300 ppb and the operation is stable and reliable. All the results demonstrate that the system satisfy the demand of monitoring H2S in the procedure of natural gas desulfurization.

Key words: spectroscopy, hydrogen sulfide monitoring, laser absorption spectroscopy, Herriot cell, natural gas desulfurization

中图分类号: