Атмосферные радикальные реакции при горении толуола в воздухе
Аннотация
Горение толуола в воздухе сопровождается образованием различного вида токсикантов. Рассмотрены элементарные реакции свободных радикалов, сопровождающих процесс горения. Реакции оксидов азота с бензильными радикалами играют одну из главных ролей в трансформации толуола в воздухе. Метод конкурирующих реакций был применен как основной кинетический инструмент для определения констант скорости реакций реакции оксидов азота с бензильными радикалами. Бензильные и гидроксиэтильные радикалы получали в реакциях атомов хлора с толуолом и этанолом. Реакция оксидов азота с гидроксиэтильными радикалами была использована как конкурирующая реакция. Концентрации реагентов и продуктов реакций определялись методами масс-спектрометрии. Получена температурная зависимость отношения констант скорости этих реакций.
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