生物质燃烧法兰的水性氧化通过单片分子氧 (1O2*)
Stephanie Arciva1, Yuejun Zhou1, Wenqing Jiang2
1Department of Land, Air, and Water Resources, University of California, Davis, California 95616, United States.
来自生物质燃烧的 furan 可以通过与单一氧 (1O2*) 的水性反应形成二次有机气溶 (SOA). 高度替代的 furan,如 MFDCA,显示出形成水性 SOA 的显著潜力,影响空气质量.
科学领域:
- 环境化学环境化学
- 大气化学 大气化学
- 化学动力学 化学动力学
背景情况:
- 弗兰是生物质燃烧的常见排放物.
- 二次有机气溶 (SOA) 是由氧化反应形成的.
- 和单片氧的水性SOA形成尚未得到研究.
研究的目的:
- 研究 furan 与单一氧 (1O2*) 的水态反应性.
- 从反应中量化SOA的质量产量.
- 评估 furan-1O2* 反应对 aqSOA 的贡献.
主要方法:
- 测量了17个和1O2*的反应动力学.
- 确定三种特定法兰的SOA质量产量.
- 对于MFDCA,估计的气体和水性SOA形成率.
主要成果:
- 第二阶段的利率常数差异很大 (105109 M−1s−1).
- 在测试的中,SOA的质量产量在0%~125%之间.
- 无机盐影响了的损失率.
结论:
- 用1O2*替代的水性反应可以成为aqSOA的重要来源.
- MFDCA显示了aqSOA形成的巨大潜力.
- 与类的水性反应可能比 furan-1O2* 路径更为主导.
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