王嘉琦,田思迪,高东波,田志伟,彭志敏,杜艳君

• 1:京能秦皇岛热电有限公司
• 2:清华大学能源与动力工程系电力系统及发电设备控制与仿真国家重点实验室
• 3:华北电力大学控制与计算机工程学院

摘要(Abstract)：

电站锅炉在低NOx燃烧过程中因锅炉内还原性气氛浓度较高，会产生较多H_2S气体。针对H_2S因具有易燃、强腐蚀性、剧毒性而可能对火电厂造成多种危害的问题，采用可调谐二极管激光吸收光谱（tunable diode laser absorption spectroscopy,TDLAS）方法结合多通池和计算机搭建低气体摩尔分数在线测量系统，实现了对混合气体中摩尔分数在10~(–6)量级H_2S的精确在线测量，并利用该测量系统进行了H_2S高温反应实验，探究实验温度和混合气体中O_2摩尔分数对该反应的影响。实验结果展示了压力为80kPa、O_2摩尔分数为0～5%的条件下，H_2S开始发生化学反应的温度随O_2摩尔分数变化的变化规律，整体而言，混合气体中O_2摩尔分数越高，H_2S开始发生化学反应的温度越低。实验结果可以为锅炉烟气中H_2S的生成、转化和危害控制提供一定数据基础。

关键词(KeyWords)： TDLAS;H_2S;在线测量;高温反应;O_2摩尔分数

Abstract:

Keywords:

基金项目(Foundation): 中国华能集团有限公司总部科技项目（HNKJ22-H105）;; 清华大学山西研究院种子基金项目（041509005）~~

作者(Author): 王嘉琦,田思迪,高东波,田志伟,彭志敏,杜艳君

DOI: 10.19666/j.rlfd.202306094

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