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来自中国生物质燃料炉的多环芳碳排放

Chunlin Zhang¹, Meixue Yang², Jiangyong Li²

¹College of Environment and Climate, Jinan University, Guangzhou 511443, China; Guangdong International Science and Technology Cooperation Base of Air Quality Science and Management, Guangzhou 511443, China.

Journal of hazardous materials

|September 14, 2024

概括

工业生物质炉排放多环芳 (PAHs),其中一些超过排放标准. 与露天燃烧相比,在炉中使用生物质显著减少了PAH排放,这有助于环境政策.

科学领域:

环境科学环境科学
化学工程是化学工程的重要组成部分.
燃烧科学燃烧科学

背景情况:

生物质是一种可持续的能源,但其燃烧可以释放有害的多环芳 (PAHs).
来自工业生物质燃料炉的PAHs的环境风险尚未得到充分了解.
氧化是一种具有潜在健康风险的16种优先污染物的组.

研究的目的:

综合评估来自工业生物质燃料炉的多环芳 (PAH) 排放.
在颗粒和气相中量化PAH度和排放因子.
为了比较工业生物质燃烧与露天燃烧的PAH潜在排放.

主要方法:

来自13个工业生物质燃料炉的颗粒和气相中的16种优先PAH的分析.
从炉堆中采集烟气样本.
先进的分析技术用于精确的PAH量化.

主要成果:

总PAH度差异很大 (1.368870 μg m−3),其中一些超过了中国的子[a]烯排放标准.
PAHs主要存在于气态阶段,两个阶段都有相似的毒性.
当生物质用于工业炉 (0.611.32 Gg y-1) 时,与露天燃烧 (3.397.21 Gg y-1) 相比,估计的每年PAH排放量显著较低.

结论:

工业生物质燃烧因PAH排放而带来环境风险,需要监管监督.
与传统的开放式燃烧相比,在工业炉中利用生物质可以大幅减少PAH总体排放.
调查结果为环境政策和与生物质能源相关的风险管理策略提供了关键数据.

关键词:

生物质燃料是生物质燃料.排放因子排放因子排放因子工业炉工业炉的使用情况毒性评估毒性评价毒性评价

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