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| 工业温室气体CO2排放监测技术前期研究 |
| Preliminary Study of Industrial Greenhouse Gas (CO2) Emissions Monitoring Technology |
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| DOI： |
| 中文关键词: 工业废气 二氧化碳 红外传感器 非分散红外法 气相色谱法 |
| 英文关键词: Industrial waste gas Carbon dioxide (CO2) Infrared sensor Non dispersive infrared analysis method Gas chromatography |
| 基金项目:国家环境监测总站“工业温室气体排放统计及监测技术前期研究”基金资助项目 |
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| 中文摘要: |
| 介绍了国内外二氧化碳（CO2）气体检测方法，选取红外传感器、非分散红外和气相色谱3种方法监测工业燃煤废气中的CO2。试验结果表明，3种方法的精密度和准确度均满足要求；单一燃煤废气中CO2的体积分数范围为6.70%～15.10%，同一排气筒中CO2体积分数5 min的波动范围为0～22.4%；同一排气筒（单一燃煤废气）中CO2和O2的体积分数有一定的关联性，二者之和基本稳定在19%～21%范围；非分散红外法和气相色谱法测定同一样品的相对偏差为0.9%～3.4%；红外传感器适用于有组织排放的现场监测，另2种方法适用于无组织废气和环境空气监测。 |
| 英文摘要: |
| Domestic and foreign CO2 gas detection methods were introduced and three methods of Infrared sensor, non dispersive infrared analysis and gas chromatography were selected to monitor the concentration of CO2 in industrial coal fired waste gas. According to the experimental results, the precision and accuracy of the three methods all met the requirements. In the exhaust gas containing coal fired waste gas only, the range of volume fraction of CO2 was from 6.70% to 15.10%. In the same exhaust pipe, the fluctuation range of volume fraction of CO2 within 5 minutes was from 0 to 22.4%. In the same exhaust pipe(exhaust gas containing coal fired waste gas only), the volume fraction of CO2 and O2 have some relevance, their sum was basically stable in the range from 19% to 21%. The relative deviation of non dispersive infrared analysis and gas chromatography in testing the same sample ranged from 0.9% to 3.4%. Infrared sensor is suitable for on site monitoring of organized emissions and the other two methods are applicable to unorganized emissions and ambient air monitoring. |
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