Abstract
The article considers the problem of environmental pollution caused by the presence of hydrogen sulfide in fuel oil. Hydrogen sulfide has a negative impact on the human health: a slight degree of poisoning develops within 3-4 hours already at a 100 mg/m3 concentration of hydrogen sulfide in the air. The regulatory documents limit the hydrogen sulfide content in fuel oil. The search for new available methods of cleaning fuel oil from hydrogen sulfide is relevant today. There has been considered one of the alternative methods of hydrogen sulfide removal from fuel oil, namely, ultrasonic treatment. The method allows changing the dispersed composition of fuel oil and intensifying the extraction of the gas phase of hydrogen sulfide. The advantages of ultrasonic treatment include the absence of injected reagents and environmental cleanliness, small size, low energy costs and the possibility of using ultrasound unit at existing refineries due to its compactness. The influence of the ultrasonic unit capacity and flow rate on hydrogen sulfide removal from fuel oil and change of its dispersion composition has been studied. There have been presented the optimal conditions for ultrasonic treatment and described the mechanism of hydrogen sulfide removal by using ultrasonic treatment
Highlights
The article considers the problem of environmental pollution caused by the presence of hydrogen sulfide in fuel oil
Hydrogen sulfide has a negative impact on the human health: a slight degree of poisoning develops within 3-4 hours already at a 100 mg/m3 concentration of hydrogen sulfide in the air
The method allows changing the dispersed composition of fuel oil and intensifying the extraction of the gas phase of hydrogen sulfide
Summary
Астраханский государственный технический университет, Астрахань, Российская Федерация. Исследовано влияние мощности ультразвуковой установки и скорости потока на удаление сероводорода из мазута и изменение его дисперсионного состава. Ключевые слова: ультразвуковая обработка, нефтяная дисперсная система, мазут, сероводород, методы удаления сероводорода. Такие методы представляют собой сочетание процесса очистки и механического перемешивания – они основаны на принципе фазового равновесия (после того как давление достигает определенного значения, легкие фракции улетучиваются, и содержание сероводорода снижается) [2, 3]. 1 представлена зависимость дисперсности мазута от мощности ультразвуковой установки и скорости потока. 1. Зависимость среднего размера частиц дисперсной фазы мазута от мощности ультразвуковой установки и скорости потока. 1, можно сделать вывод, что наименьшему диаметру дисперсных частиц при ультразвуковой обработке соответствует наибольшая степень очистки 2. Зависимость степени очистки мазута от скорости потока при разных значениях мощности ультразвука.
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