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Добірка наукової літератури з теми "Абсорбція оксидів"
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Дисертації з теми "Абсорбція оксидів"
Пугановський, Олег Валентинович, Михайло Олексійович Подустов та Тамара Іванівна Печенко. "Аналіз впливу окислених та абсорбційних об’ємів на якість роботи абсорбційної колони в технології нітратної кислоти". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/47364.
Повний текст джерелаЦейтлін, Мусій Абрамович, та Валентина Федорівна Райко. "Кінетика абсорбції оксидів сірки з топкових газів лужними виробничими стоками". Thesis, Одеська національна академія харчових технологій, 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/42102.
Повний текст джерелаThe kinetics of the process of absorption of sulfur dioxide by the waste of soda production by the use of distiller fluid was studied using a holey counterflow (wash) plate as a contact element. In particular, the effect of partial pressure of sulfur dioxide, the concentration of sludge in the absorbent and temperature on the absorption rate was investigated. It has been found that direct proportionality between the absorption rate and the logarithmic partial pressure of CO2 exists only under the condition that the latter does not exceed 100 Pa. As the partial pressure increases, the nature of the dependence changes somewhat. Under partial pressures of more than 130 Pa, it can also be represented by a straight line, but one that does not pass through the origin. It is shown that as a result of increasing the partial pressure of SO2 in the gas, the control over the absorption rate passes from the gas film on the gas-liquid interface to the dissolution of the calcium component of the sludge. An equation was obtained to calculate the kinetic absorption coefficient.
Пугановський, Олег Валентинович, Михайло Олексійович Подустов та А. Є. Ходенков. "Розробка математичної моделі процесу абсорбції оксидів азоту в технології нітратної кислоти". Thesis, Національний технічний університет "Харківський політехнічний інститут", 2017. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41970.
Повний текст джерелаВекшин, Віталій Олександрович. "Очищення викидних газів абсорбції від оксидів нітрогену у виробництві нітратної кислоти". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22710.
Повний текст джерелаThesis for a Candidate of Techical Sciences degree by speciality 05.17.01 – Technology of inorganic substances. – National technical university "Kharkov polytechnical institute", Kharkov, 2016. Thesis is devoted to the development of technology for preparing the catalyst for industrial processes of selective catalytic reduction (SCR) of nitrogen oxides with ammonia. Optimal technological parameters of preparation of carrier based of titanium oxide for following impregnation with catalytically active substance have been experimentally determined. Optimal parameters of application of the active substance – platinum – from solution of hexachloroplatinic acid on the surface of carrier have been found: the number of impregnations is 1, the impregnation time is 5 min, the concentration of the impregnation solution is 10%. The positive influence of modifiers – monobasic organic acids – on the catalyst preparation by impregnation has been proved. Application of formic acid in impregnation as a competing adsorbate and as a reducing agent has been substantiated by means of physico-chemical investigations. Experimental researches of the influence of industrial parameters (temperature, gas hourly space velocity) on the activity of obtained catalysts have been carried out. Correlation between the size of platinum crystallites and the time of catalyst operation has been determined. It obeys the exponential dependence and shows decrease in running time of the catalyst with increase in size of crystallites during sintering. Mathematical model of the SCR process has been developed. Kinetic investigations of the process of NOx reduction on obtained catalysts have been carried out. They allowed to determine the optimal conditions of purification, which are as follows: the maximum degree of reduction can be achieved at T = 473 – 523 K and the bulk gas flow 50 000 – 60 000 m³/h on a catalyst modified with formic acid. The designs of the block catalyst having cellular structure and industrial reactor for it have been suggested. It is shown that the gas flow resistance of the developed catalyst is 12 times lower than that of the ABK-10. Ecological-economic calculations and economic benefit estimation show that decrease of gas flow resistance and 2.5-fold ecological costs reduction will result in savings of 16,038,720 UAH during 8 years, i.e. during full period of catalyst operation.
Векшин, Віталій Олександрович. "Очищення викидних газів абсорбції від оксидів нітрогену у виробництві нітратної кислоти". Thesis, НТУ "ХПІ", 2016. http://repository.kpi.kharkov.ua/handle/KhPI-Press/22711.
Повний текст джерелаThesis for a Candidate of Techical Sciences degree by speciality 05.17.01 – Technology of inorganic substances. – National technical university "Kharkov polytechnical institute", Kharkov, 2016. Thesis is devoted to the development of technology for preparing the catalyst for industrial processes of selective catalytic reduction (SCR) of nitrogen oxides with ammonia. Optimal technological parameters of preparation of carrier based of titanium oxide for following impregnation with catalytically active substance have been experimentally determined. Optimal parameters of application of the active substance – platinum – from solution of hexachloroplatinic acid on the surface of carrier have been found: the number of impregnations is 1, the impregnation time is 5 min, the concentration of the impregnation solution is 10%. The positive influence of modifiers – monobasic organic acids – on the catalyst preparation by impregnation has been proved. Application of formic acid in impregnation as a competing adsorbate and as a reducing agent has been substantiated by means of physico-chemical investigations. Experimental researches of the influence of industrial parameters (temperature, gas hourly space velocity) on the activity of obtained catalysts have been carried out. Correlation between the size of platinum crystallites and the time of catalyst operation has been determined. It obeys the exponential dependence and shows decrease in running time of the catalyst with increase in size of crystallites during sintering. Mathematical model of the SCR process has been developed. Kinetic investigations of the process of NOx reduction on obtained catalysts have been carried out. They allowed to determine the optimal conditions of purification, which are as follows: the maximum degree of reduction can be achieved at T = 473 – 523 K and the bulk gas flow 50 000 – 60 000 m³/h on a catalyst modified with formic acid. The designs of the block catalyst having cellular structure and industrial reactor for it have been suggested. It is shown that the gas flow resistance of the developed catalyst is 12 times lower than that of the ABK-10. Ecological-economic calculations and economic benefit estimation show that decrease of gas flow resistance and 2.5-fold ecological costs reduction will result in savings of 16,038,720 UAH during 8 years, i.e. during full period of catalyst operation.
Цейтлин, Мусий Абрамович, та Валентина Федоровна Райко. "Математическое моделирование взаимодействия оксидов серы с кальцийсодержащими жидкими отходами". Thesis, Національний технічний університет України "Київський політехнічний інститут імені Ігоря Сікорського", 2019. http://repository.kpi.kharkov.ua/handle/KhPI-Press/41319.
Повний текст джерелаIn order to reduce the cost of absorption purification of flue gas emissions from sulfur dioxide, it was proposed to use industrial waste containing calcium. Using the example of waste soda production, a mathematical model is developed for the kinetics of the process of interaction of runoff with lime under conditions where, depending on the partial pressure, sulfur dioxide in the gas, the absorption rate is determined by diffusion in the gas film or by dissolving the solid part of the suspension. Considered the use of this model in the calculation of gas cleaning equipment.