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首页> 外文会议>Air Waste Management Association's annual conference exhibition >Mass Transport of Polycyclic Aromatic Hydrocarbon Vapors to Fog Droplets
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Mass Transport of Polycyclic Aromatic Hydrocarbon Vapors to Fog Droplets

机译：多环芳烃蒸气对雾滴的大规模运输

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The mass transfer of naphthalene vapor to water droplets in air was studied in the presence of ozone in the gas phase. A falling droplet reactor with water droplets of diameters 55, 91 and 182 μm was used for the study. Ozone reacted with naphthalene at the air-water interface, thereby decreasing the mass transfer resistance and increasing the rate of uptake of naphthalene into the droplet. A Langmuir-Hinshelwood reaction mechanism at the air-water interface satisfactorily described the surface reaction. The first order surface reaction rate constant, ks increased with decreasing droplet size. Three organic intermediates were identified in the aqueous phase as a result of ozonation of naphthalene at the surface of the droplet indicating both peroxidic and non-peroxidic routes for ozonation. The presence of an organic carbon surrogate (Fulvic acid) increased both the partition constant of naphthalene and the surface reaction rate of ozone.
机译：在气相中的臭氧存在下，研究了空气中的萘蒸气与水滴的传质。研究中，具有水滴的下降液滴反应器用于该研究。臭氧在空气 - 水界面处与萘反应，从而降低了传质抗性并增加萘将萘的速率进入液滴中。气水界面的Langmuir-Hinshelwood反应机理令人满意地描述了表面反应。第一阶表面反应速率常数，Ks随着液滴尺寸的降低而增加。在水相中在水相中鉴定了三种有机中间体，其臭氧在液滴表面上的臭氧化，表明过氧化物和非过氧化物途径进行臭氧化途径。有机碳蛋白酶（Fulvic酸）的存在增加了萘的分区常数和臭氧的表面反应速率。

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