SU738645A1 - Method of purifying off-gases from acid components - Google Patents
Method of purifying off-gases from acid components Download PDFInfo
- Publication number
- SU738645A1 SU738645A1 SU772492140A SU2492140A SU738645A1 SU 738645 A1 SU738645 A1 SU 738645A1 SU 772492140 A SU772492140 A SU 772492140A SU 2492140 A SU2492140 A SU 2492140A SU 738645 A1 SU738645 A1 SU 738645A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- gases
- purification
- purifying
- absorption
- acid components
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 239000007789 gas Substances 0.000 title claims description 7
- 239000002253 acid Substances 0.000 title 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 8
- 230000002378 acidificating effect Effects 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Inorganic materials O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Description
(54) СПОСОБ ОЧИСТКИ ОТХОДЯЩИХ ГАЗОВ ОТ КИСЛЫХ КОМПОНЕНТОВ(54) METHOD FOR CLEANING OF EXHAUST GASES FROM ACIDIC COMPONENTS
Изобретение относитс к способам очистки отход щих газов от кислых .; компонентов, например сернистого ангидрида и двуокиси углерода, и мо жет найти применение в химической промышленности, цветной и черной металлургии, теплоэнергетике. Известен способ очистки отход щих газов от кислых компонентов путем поглощени последних раствором алканоламинов в различных органических растворител х с последующей регенерацией растворителей 1. Недостаток способа - расход доро госто щих химических реагентов. Наиболее близким решением к изо-t бретению по технической сущности и достигаемому результату вл етс способ очистки отход щих газов от сернистого ангидрида и двуокиси углерода, заключгиощийс в абсорбции этих компонентов.сточными водами систем газоочистки производства мар ганцевых сплавов 2. Сточные воды содержат карбонатну и бикарбонатную щелочность в пределах 25-300 мг-экв/л и ионы кальци 0,2-1,0 мг экв/л. Степень очистки от сернистого ангидрида по этому сп собу составл ет 91% и от двуокиси углерода 69%. Основным недостатком известного способа вл етс сравнительно низка степень ;очистки от S0,j. Целью изобретени вл етс повышение степени очистки от SO. Указанна цель достигаетс тем, что абсорбцию кислых компонентов из отход щих газов провод т щелочными сточными водами гидрошлакозолоудалений тепловых электрических станций . Сточные йоды содержат свободную щелочность 10-15 мг-экв/л, суммарную карбонатную и бикарбонатную щелочность 12-30 мг.экв/л, ионы кальци 4-6 мг. экв/л, ионы железа и магни 0,2-0,6 мг экв/л, ионы натри и кали 0,5-1,0 мг. экв/л и ионы NH 0,02 мг.экв/л, рН сточных вод равн етс 10-11,6. Степень очистки, от 80 г по данному способу достигает 99%. При м е р. Отход щие газы с содержанием 0,099% SO, .и 7,6% СО. пропускают через абсорбционную колонну с трем провальными тарелками со 3 73 скоростью 1,0 м/сек при температуре и атмосферном давлении. Абсорбционную колонну орошают сточными водами гидрс илакозолоудалени ТЭЦ, содержащими 20 мг экв/л теуйМарной карбонатной и бикарбонатной щелочности и 5,4 мг экв/л ионов кгшьци . Отход щие газы после очистки содержат 0,001% ЗОд и 2,9% СОд,. Степейь Очистки от сернистого ангидрида при. этом составл ет 99%. Формула иэобретени . 1. Способ очистки отход щих газов от кислых компонентов путем абсорбции 54 сточными водами, отличающийс тем, что с целью повышени степени очистки от сернистого ангидрида , абсорбцию провод т щелочными сточными водами гидрошлакозолоудалений тепловых электрических станций. Источники информгщии, прин тые во внимание при экспертизе i. Патент Англии №1038350, 29.06.65. 2. Авторское свидетельство СССР 495074, кл. В 01 D 53/16, 08.10.74 ( прототип).The invention relates to methods for purifying waste gases from acidic; components, such as sulfur dioxide and carbon dioxide, and can be used in the chemical industry, ferrous and non-ferrous metallurgy, and power engineering. A known method for purifying waste gases from acidic components is by absorbing the latter with a solution of alkanolamines in various organic solvents, followed by solvent regeneration 1. The disadvantage of this method is the consumption of expensive chemical reagents. The closest solution to the technical essence and the achieved result is the method of purification of exhaust gases from sulfur dioxide and carbon dioxide, which consists in the absorption of these components by waste waters of gas cleaning systems of manganese alloys production 2. Sewage waters contain carbonate and bicarbonate alkalinity in the range of 25-300 mEq / L and calcium ions of 0.2-1.0 mg eq / L. The degree of purification from sulfur dioxide in this way is 91% and carbon dioxide 69%. The main disadvantage of this method is the relatively low degree of purification from S0, j. The aim of the invention is to increase the degree of purification from SO. This goal is achieved by the fact that the absorption of acidic components from the exhaust gases is carried out by alkaline wastewater from the hydro-slag removal of thermal power plants. Waste iodine contains free alkalinity of 10–15 meq / l, total carbonate and bicarbonate alkalinity of 12–30 mg.eq./l, calcium ions 4–6 mg. eq / l, iron and magnesium ions 0.2-0.6 mg eq / l, sodium and potassium ions 0.5-1.0 mg. eq / l and NH ions 0.02 mg.eq./l, the pH of the wastewater is 10-11.6. The degree of purification, from 80 g in this method reaches 99%. An example. Exhaust gases with a content of 0.099% SO, and 7.6% CO. passed through an absorption column with three failed plates with 3 73 speeds of 1.0 m / s at temperature and atmospheric pressure. The absorption column is irrigated with waste water from a hydropower plant and ash removal plant, containing 20 mg eq / l teu Marny carbonate and bicarbonate alkalinity and 5.4 mg eq / l of ions per thousand. The after-treatment waste gases contain 0.001% HDD and 2.9% SD ,. Steppes Purification from sulfur dioxide at. this is 99%. Invention formula. 1. A method for purifying waste gases from acidic components by absorption 54 by sewage, characterized in that in order to increase the degree of purification from sulfuric anhydride, absorption is carried out by alkaline sewage from hydraulic power plants. Sources of information taken into account during the examination i. England patent No. 1038350, 06/29/65. 2. USSR author's certificate 495074, cl. B 01 D 53/16, 10/08/74 (prototype).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772492140A SU738645A1 (en) | 1977-06-01 | 1977-06-01 | Method of purifying off-gases from acid components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772492140A SU738645A1 (en) | 1977-06-01 | 1977-06-01 | Method of purifying off-gases from acid components |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU738645A1 true SU738645A1 (en) | 1980-06-05 |
Family
ID=20711566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772492140A SU738645A1 (en) | 1977-06-01 | 1977-06-01 | Method of purifying off-gases from acid components |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU738645A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR880100612A (en) * | 1987-09-16 | 1989-06-22 | Passamaquoddy | Purification method of polluting substances by means of an injected airstream |
| US5100633A (en) * | 1985-11-07 | 1992-03-31 | Passamaquoddy Technology Limited Partnership | Method for scrubbing pollutants from an exhaust gas stream |
| RU2807935C1 (en) * | 2023-03-16 | 2023-11-21 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for purifying exhaust gases of thermal electric plants from carbon dioxide |
-
1977
- 1977-06-01 SU SU772492140A patent/SU738645A1/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5100633A (en) * | 1985-11-07 | 1992-03-31 | Passamaquoddy Technology Limited Partnership | Method for scrubbing pollutants from an exhaust gas stream |
| GR880100612A (en) * | 1987-09-16 | 1989-06-22 | Passamaquoddy | Purification method of polluting substances by means of an injected airstream |
| BE1001118A5 (en) * | 1987-09-16 | 1989-07-18 | Passamaquoddy Tribe | Method for washing by removing pollutants from a gas stream uses. |
| RU2807935C1 (en) * | 2023-03-16 | 2023-11-21 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method for purifying exhaust gases of thermal electric plants from carbon dioxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES506909A0 (en) | PROCEDURE TO PURIFY WASTEWATER AND-OR MUD FROM WASTEWATER. | |
| GB1389730A (en) | Method of treatment of gas containing sulphur dioxide | |
| CN102205202A (en) | Processing method for acid gas containing H2S | |
| ES2082893T3 (en) | METHOD FOR ELIMINATING COMBUSTION GAS SULFUR DIOXIDE. | |
| DE3783506D1 (en) | METHOD AND DEVICE FOR PURIFYING EXHAUST GASES. | |
| US5035810A (en) | Process for treating wastewater which contains sour gases | |
| CN202823140U (en) | Electro-dialysis seawater desulfurization device for marine gas turbine tail gas treatment | |
| SU738645A1 (en) | Method of purifying off-gases from acid components | |
| SU910110A3 (en) | Process for purifying off gases from sulphur oxides | |
| FR2384714A1 (en) | PROCEDURE FOR REMOVING SULFO-OXYGEN ANIONS FROM HEAT-STABLE SALTS IN SULPHUROUS GAS ABSORPTION SOLUTIONS | |
| US4014978A (en) | Air pollution control system and method | |
| JPH0252558B2 (en) | ||
| ATE121311T1 (en) | METHOD FOR CLEANING FLUE GASES FROM FURNATION SYSTEMS, IN PARTICULAR WASTE INCINERATION SYSTEMS. | |
| CA1100291A (en) | Method and apparatus for removing sulfur and nitrogen compounds from a gas mixture | |
| JPS59204687A (en) | Fuel gas desulfurization method | |
| CN103043779B (en) | Flue gas desulfurization waste liquid treatment and activated sludge reduction treatment method | |
| SU1754183A1 (en) | Method for gas cleaning from hydrogen sulfide and sulfur dioxide | |
| JPS5444609A (en) | Preparation of acrylic acid | |
| SU822861A1 (en) | Method of cleaning gas from hydrogen sulfide in the presence of carbon dioxide | |
| US3690824A (en) | Desulfurization of flue gas | |
| NO970133L (en) | Method of removing nitrogen from flue gases | |
| JPH0929060A (en) | Treatment of exhaust gas | |
| RU1782639C (en) | Method refining exhaust gas of sulfur dioxide | |
| CN110127641B (en) | A kind of method for recovering nitrite from desulfurization and denitrification waste liquid | |
| SU673615A1 (en) | Method of purifying waste water of industrial gas desulfurization process |