对ppm以下仪器响应的比较表明,可以使用更高的检测极限来量化石油和天然气基础设施的甲排放量
Stuart N Riddick1, Mercy Mbua1, Ryan Brouwer1
1Methane Emission Technology Evaluation Center (METEC), The Energy Institute, Colorado State University, Fort Collins, CO 80523, USA.
Sensors (Basel, Switzerland)
|June 19, 2024
概括
石油和天然气设施的新甲传感器可能会变得不那么敏感,检测高度事件以降低监测成本. 这种方法可能使得甲排放的泄漏检测和修复计划得到广泛的应用.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 仪器仪表工程 仪器仪表工程
背景情况:
- 来自石油和天然气设施的逃逸甲排放是一个主要的气候问题.
- 目前的监测方法昂贵,限制了广泛部署.
- 现有的技术往往假定低ppm检测极限是必要的.
研究的目的:
- 在现实的排放场景下调查甲分析仪的性能.
- 为了确定不太敏感的仪器是否可以有效量化甲排放.
- 探索监控石油和天然气基础设施的成本有效解决方案.
主要方法:
- 在一个受控释放气体设施安置了三台微量甲分析仪 (CRDS和MIRA).
- 在9小时内以1赫兹分辨率测量甲混合比率,已知排放率为0.45.2公斤CH4h-1).
- 分析了仪器对异质甲羽的反应,可能是由微气象现象引起的.
主要成果:
- 中红外激光吸收光谱 (MIRA) 仪器检测到短暂的,高度的甲峰值 (高达779 ppm),没有被腔环下降光谱仪 (CRDS) 捕获.
- MIRA检测这些事件的能力表明微气象对羽毛异质性的影响.
- 分析表明,具有25ppm检测极限的仪器可以捕获足够的高度事件,以代表20分钟平均值.
结论:
- 较不敏感的甲检测仪器 (例如,MIRA具有25ppm值) 可能足以量化石油和天然气设施的排放量.
- 这一发现可以显著降低甲监测的成本.
- 允许在整个石油和天然气行业进行广泛的,具有成本效益的泄漏检测和维修计划.
关键词:
有控制释放的释放.检测极限 检测极限 检测极限仪器仪表仪器仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪表仪器仪表仪表仪表仪表仪表仪表仪表仪器仪表仪表仪表仪器仪表仪表仪表仪表仪表仪表仪表仪表仪表仪器仪表仪表仪表仪表仪表仪器仪表仪器仪表仪器仪表仪表仪器仪表仪表仪器仪表甲是一种甲.石油和天然气的石油和天然气.更多相关视频
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