全球液化天然气 (LNG) 出口设施燃烧活动的分析
Laura Minet1,2, Forood Azargoshasbi1,2, Meredith Franklin3
1Department of Civil Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada.
Environmental science & technology
|September 20, 2025
概括
液化天然气 (LNG) 设施在最初的两年运行期间燃烧的气体显著增加. 这种燃烧是空气污染的一个来源,在环境评估中可能被低估了.
科学领域:
- 环境科学 环境科学
- 能源政策 能源政策
- 大气化学 大气化学
背景情况:
- 液化天然气 (LNG) 出口设施在全球范围内不断增加,以满足能源需求.
- 虽然这些设施的燃烧对于运营和安全来说是必要的,但却是空气污染和温室气体排放的来源.
- 关于液化天然气设施在其整个生命周期中的燃烧程度的数据有限.
研究的目的:
- 量化全球LNG出口设施燃烧气体的频率,持续时间和数量.
- 分析生命周期不同阶段的燃烧模式,特别是启动阶段.
- 在环境评估中评估燃烧对健康影响的潜在低估.
主要方法:
- 利用了来自可见红外成像放射仪套件 (VIIRS) 夜间火灾 (VNF) 产品的十年数据.
- 分析了全球48个现有液化天然气出口设施的数据.
- 根据设施生命周期阶段和生产能力开发的燃烧概率.
主要成果:
- 液化天然气设施在前两年 (1,9亿立方米/容量) 的燃烧量明显高于后来的几年 (0.62亿立方米/容量).
- 常规运营期间的年度焚烧量与生产能力相关,平均为0.73亿立方米/容量 (每年148天).
- 在不同设施之间观察到燃烧的显著差异.
结论:
- 液化天然气设施的启动阶段与比通常考虑的要高得多的燃烧量有关.
- 环境评估可能低估了空气污染和对当地居民的潜在健康影响,因为忽视了早期燃烧.
- 需要进一步的研究和改进的环境影响评估来解释全面的燃烧数据.
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