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来自加拿大阿尔伯塔省和萨斯喀彻温省的采砂生产的冷重油生产的甲排放量

Tianran Han¹, John Liggio², Julie Narayan²

¹State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.

Environmental science & technology

|June 4, 2024

概括

加拿大的冷重油生产与沙子 (CHOPS) 运营的甲排放量明显高于之前报告的水平. 这项研究提供了排放因子,以改善国家库存并减少温室气体的排放.

科学领域:

环境科学环境科学
能源资源能源资源
大气化学大气化学

背景情况:

用沙子冷重油生产 (CHOPS) 是加拿大的一种石油开采方法.
CHOPS可能会比传统场所释放更多的甲 (CH4),但排放量没有得到很好的量化.
准确的甲排放数据对于环境法规和气候变化减缓至关重要.

研究的目的:

量化来自阿尔伯塔省和萨斯喀彻温省的CHOPS活动的甲排放量.
为了比较两个省份之间的甲排放因子.
确定影响甲排放的因素,并制定减少战略.

主要方法:

在2018年6月,在10个CHOPS井集群中进行了空中测量活动.
使用质量平衡算法与现场飞机风力数据来计算总的CH4排放量.
根据生产量确定集群聚合的排放因子 (EF).

主要成果:

在阿尔伯塔省和萨斯喀彻温州的CHOPS井之间,CH4排放没有统计学上显著的差异.
平均CH4EF: 70.4 ± 36.9 公斤/立方米 (阿尔伯塔省) 和 55.1 ± 13.7 公斤/立方米 (萨斯喀彻温州).
据估计,CHOPS的排放量比萨斯喀彻温省的国家库存报告 (NIR) 报告的排放量高出121%.
甲排放因子与非管道生产量正相关,表明非管道井的排放量较高.
与阿尔伯塔州相比,萨斯喀彻温州的法规显示出有限的有效性.

结论:

CHOPS的运营大大导致加拿大NIR中甲排放量报告不足.
基于测量的排放因子可以改善CHOPS行业的排放清单.
这些发现为减轻CHOPS运营中的甲排放提供了基础.

关键词:

商店商店商店测量飞机的测量结果排放因子的排放因子甲排放排放量甲排放量排气口是为了通风.

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