SU835478A1 - Method of cleaning exhaust gases from nitrogen oxides - Google Patents
Method of cleaning exhaust gases from nitrogen oxides Download PDFInfo
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- SU835478A1 SU835478A1 SU792728831A SU2728831A SU835478A1 SU 835478 A1 SU835478 A1 SU 835478A1 SU 792728831 A SU792728831 A SU 792728831A SU 2728831 A SU2728831 A SU 2728831A SU 835478 A1 SU835478 A1 SU 835478A1
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- SU
- USSR - Soviet Union
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- nitrogen oxides
- chlorine
- exhaust gases
- purification
- solution
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- Treating Waste Gases (AREA)
Description
Изобретение относитс к способам очистки газов от окислов азота и касаетс очистки газов от окиси азота отход щих газов черной металлургии и теплоэнергетике.The invention relates to methods for the purification of gases from nitrogen oxides and for the purification of gases from nitrogen oxides from waste gases of ferrous metallurgy and thermal power engineering.
Известен способ очистки газов от окислов азота, в частности от окиси азота путем поглощени их водным раствором, содержащим сульфит щелочного металла или аммони ; Предварительно газы обрабатывают хлорсодержащим веществом, например ClOj или озоном 1.A known method for purifying gases from nitrogen oxides, in particular from nitric oxide, is absorbed by an aqueous solution containing an alkali metal sulphite or ammonium; Pre-gases are treated with a chlorine-containing substance, for example ClOj or ozone 1.
Недостатком известного способа вл етс двухстадийность проведени процесса - стади окислени и стади поглощени , а также недостаточна эффективность процесса.The disadvantage of this method is the two-stage process - the stage of oxidation and the stage of absorption, as well as the lack of efficiency of the process.
Наиболее близким по технической сущности и достигаемому результату к описываемому изобретению вл етс способ очистки газов от окислов азота путем обработки газов раствором гипохлорита натри , хлора или хлорной извести. Процесс ведут при одновременном облучении ультрафиолетовыми лучами 2.The closest in technical essence and the achieved result to the described invention is a method of purifying gases from nitrogen oxides by treating gases with a solution of sodium hypochlorite, chlorine or bleach. The process is conducted with simultaneous irradiation with ultraviolet rays 2.
Недостатком известного способа вл етс невысока степень очистки газов от окиси азота, до 80%, повыщение затрат, св занных с установкой ультрафиолетового излучени и увеличение энергозатрат.The disadvantage of this method is the low degree of gas purification from nitric oxide, up to 80%, increased costs associated with installing ultraviolet radiation and increasing energy costs.
Целью изобретени вл етс увеличение степени очистки газов.The aim of the invention is to increase the degree of purification of gases.
Поставленна цель достигаетс описываемым способом очистки отход щих газов от окиси азота путем их обработки хлорсодержащим водным раствором, в которомThe goal is achieved by the described method of purifying waste gases from nitric oxide by treating them with a chlorine-containing aqueous solution, in which
в качестве хлорсодержащего водного раствора примен ют хлорную известь, котора содержит неионогенные поверхностно-активные вещества, и процесс ведут в услови х интенсивной диспергации жидкости в газ.bleach, which contains non-ionic surfactants, is used as a chlorine-containing aqueous solution, and the process is carried out under conditions of intensive dispersion of the liquid into a gas.
Концентраци хлорной извести в растворе 100-200 г/л, количество поверхностноактивного вещества (ПАВ) составл ет 0,01-0,001 вес.%, а процесс ведут при линейной скорости газа 120-150 м/с. В качестве поверхностно-активного вещества примен ют оксиэтилиров анный алкилфенол (ОП-7, ОП-10), стеарокс-6, синтамид-5, синтамид-10 . Экспериментально установлено, что максимальное увеличение фазовой поверхности контакта наблюдаетс при скорости газа 100-250 м/с. Дальнейщее увеличение скорости снижает степень очистки газа. Поверхностно-активное вещество (ПАВ) способствует уменьшению поверхностного нат жени , что способствует более легкому дроблению жидкости. Количество ПАВ способствует более эффективной очистке . ДaльнeйнJee увеличение количества ПАВ нецелесообразно, так как возрастаетThe concentration of bleach in the solution is 100–200 g / l, the amount of surfactant is 0.01–0.001 wt.%, And the process is carried out at a linear gas velocity of 120–150 m / s. Hydroxyethylated alkylphenol (OP-7, OP-10), stearox-6, syntamide-5, and syntamide-10 are used as a surfactant. It was established experimentally that the maximum increase in the phase surface of the contact is observed at a gas velocity of 100-250 m / s. A further increase in speed reduces the degree of gas purification. The surfactant helps to reduce the surface tension, which makes it easier to crush the liquid. The amount of surfactant contributes to more efficient cleaning. Further, the increase in the amount of surfactants is not feasible, since it increases
ценообразование раствора. Начальна конsolution pricing. Initial con
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792728831A SU835478A1 (en) | 1979-02-23 | 1979-02-23 | Method of cleaning exhaust gases from nitrogen oxides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792728831A SU835478A1 (en) | 1979-02-23 | 1979-02-23 | Method of cleaning exhaust gases from nitrogen oxides |
Publications (1)
Publication Number | Publication Date |
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SU835478A1 true SU835478A1 (en) | 1981-06-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU792728831A SU835478A1 (en) | 1979-02-23 | 1979-02-23 | Method of cleaning exhaust gases from nitrogen oxides |
Country Status (1)
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SU (1) | SU835478A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994008895A1 (en) * | 1992-10-13 | 1994-04-28 | Nalco Fuel Tech | Process and composition for pollution control |
WO1994008893A1 (en) * | 1992-10-13 | 1994-04-28 | Nalco Fuel Tech | Process and composition for pollution control |
-
1979
- 1979-02-23 SU SU792728831A patent/SU835478A1/en active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994008895A1 (en) * | 1992-10-13 | 1994-04-28 | Nalco Fuel Tech | Process and composition for pollution control |
WO1994008893A1 (en) * | 1992-10-13 | 1994-04-28 | Nalco Fuel Tech | Process and composition for pollution control |
US5489419A (en) * | 1992-10-13 | 1996-02-06 | Nalco Fuel Tech | Process for pollution control |
US5536482A (en) * | 1992-10-13 | 1996-07-16 | Nalco Fuel Tech | Process for pollution control |
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