SU1662647A1 - Method of cleaning flue gases from nitrogen (ii) oxide - Google Patents
Method of cleaning flue gases from nitrogen (ii) oxide Download PDFInfo
- Publication number
- SU1662647A1 SU1662647A1 SU884488686A SU4488686A SU1662647A1 SU 1662647 A1 SU1662647 A1 SU 1662647A1 SU 884488686 A SU884488686 A SU 884488686A SU 4488686 A SU4488686 A SU 4488686A SU 1662647 A1 SU1662647 A1 SU 1662647A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- flue gases
- nitrate
- oxide
- mixture
- air
- Prior art date
Links
- 239000003546 flue gas Substances 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 10
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 24
- 238000004140 cleaning Methods 0.000 title claims description 4
- 239000011944 nitrogen(II) oxide Substances 0.000 title 1
- 239000000203 mixture Substances 0.000 claims abstract description 14
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000010894 electron beam technology Methods 0.000 claims abstract description 6
- 229910002651 NO3 Inorganic materials 0.000 claims abstract description 5
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims description 11
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 7
- 235000010333 potassium nitrate Nutrition 0.000 claims description 6
- 239000004323 potassium nitrate Substances 0.000 claims description 6
- 239000002594 sorbent Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 229910052939 potassium sulfate Inorganic materials 0.000 claims 1
- 239000001120 potassium sulphate Substances 0.000 claims 1
- 235000011151 potassium sulphates Nutrition 0.000 claims 1
- 239000012535 impurity Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 7
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- AZFNGPAYDKGCRB-XCPIVNJJSA-M [(1s,2s)-2-amino-1,2-diphenylethyl]-(4-methylphenyl)sulfonylazanide;chlororuthenium(1+);1-methyl-4-propan-2-ylbenzene Chemical compound [Ru+]Cl.CC(C)C1=CC=C(C)C=C1.C1=CC(C)=CC=C1S(=O)(=O)[N-][C@@H](C=1C=CC=CC=1)[C@@H](N)C1=CC=CC=C1 AZFNGPAYDKGCRB-XCPIVNJJSA-M 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- -1 energy Substances 0.000 description 1
- 150000002826 nitrites Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 235000010289 potassium nitrite Nutrition 0.000 description 1
- 239000004304 potassium nitrite Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
Изобретение относитс к технологии очистки дымовых газов от NO, примен емой на химических и энергетических предпри ти х и позвол ющей повысить экономичность процесса. В дымовые газы с примес ми NO и SO2 вспрыскивают воду. Затем их охлаждают до 80 - 120°С смешением с воздухом и ввод т водный раствор K2CO3 и KNO3 при мол рном соотношении карбоната и нитрата 10:1 и концентраци х, равных соответственно 0,15 - 0,19 и 0,015 - 0,019 моль. долей. Газожидкостную смесь облучают электронным пучком. Степень очистки от NO 90%, от SO2 95%. ПРОДУКТОМ СПОСОБА ЯВЛЯЕТСЯ СМЕСЬ KNO3 и K2SO4. 1 ил.The invention relates to a technology for purifying flue gases from NO, used in chemical and power plants, and which makes it possible to increase the efficiency of the process. Water is injected into flue gases with NO and SO 2 impurities. Then they are cooled to 80-120 ° C by mixing with air and an aqueous solution of K 2 CO 3 and KNO 3 is introduced at a molar ratio of carbonate and nitrate of 10: 1 and concentrations of 0.15 to 0.19 and 0.015 - respectively 0,019 mole. share. The gas-liquid mixture is irradiated with an electron beam. The degree of purification from NO is 90%, from SO 2 95%. THE PRODUCT OF THE METHOD IS KNO 3 AND K 2 SO 4 MIXTURE. 1 il.
Description
Изобретение относитс к способам очистки дымовых газов и может быть использовано на химических, энергетических, нефте- и газохимических предпри ти х.The invention relates to methods for cleaning flue gases and can be used in chemical, energy, oil and gas and chemical plants.
Целью изобретени вл етс повышение экономичности процесса.The aim of the invention is to increase the efficiency of the process.
Способ может быть осуществлен на устройстве , схема которого приведена на чертеже .The method can be implemented on the device, the scheme of which is shown in the drawing.
Устройство содержит смесительную камеру 1, соединенную патрубком подвода сорбента 2 и камерой облучени газов 3, подключенной к излучателю 4.The device contains a mixing chamber 1 connected by a sorbent supply pipe 2 and a gas irradiation chamber 3 connected to the radiator 4.
Устройство работает следующим образом .The device works as follows.
Исходные дымовые газы смешивают с воздухом в смесительной камере 1, после чего в них впрыскивают сорбент через патрубок подвода сорбента 2. Газо-воздушную смесь, содержащую туман сорбента, подают в камеру облучени газов 3, где она облучаетс электронным пучком из излучател 4, при этом протекают химические реакции св зывани оксидов азота (II) и (IV) в устойчивые нитратные и нитритные соли, хорошо растворимые в воде. Нитрат кали повышает скорость сорбции.The source flue gases are mixed with air in the mixing chamber 1, after which the sorbent is injected through the sorbent supply pipe 2. The gas-air mixture containing the sorbent mist is supplied to the gas irradiation chamber 3, where it is irradiated with an electron beam from the radiator 4, while Chemical reactions of the binding of nitrogen oxides (II) and (IV) to stable nitrate and nitrite salts, soluble in water, proceed. Potassium nitrate increases the rate of sorption.
Протекание, реакций сопровождаетс частичной конденсацией тумана, состо щего из взвешенных капель раствора нитрата и нитрита кали . Конденсат сливают из камеры облучени газов и подают на регенерацию сорбента.The flow of reactions is accompanied by the partial condensation of a mist consisting of suspended droplets of a solution of nitrate and potassium nitrite. The condensate is drained from the gas irradiation chamber and fed to the regeneration of the sorbent.
Газо-воздушную смесь, содержащую туман , подают на промывку.The gas-air mixture containing the mist is fed to the washing.
П р и м е р 1.PRI me R 1.
Дымовые газы с расходом 1,5 млн. нм3/ч, содержащие 1,5 г оксида азота (II) и 7 г оксида серы (IV) в 1 нм , смешивают с воздухом. Температура полученной газовоздушной смеси 80°С. В полученную газовоздушную смесь впрыскивают раствор карбоната кали (мольн-а дол 0,15) и нитрата кали (м. д. 0,015), расход раствора ЁFlue gases with a flow rate of 1.5 million Nm3 / h, containing 1.5 g of nitric oxide (II) and 7 g of sulfur oxide (IV) per 1 nm, are mixed with air. The temperature of the resulting gas-air mixture is 80 ° C. A solution of potassium carbonate (molar fraction of 0.15) and potassium nitrate (ppm: 0.015) is injected into the resulting gas-air mixture, the solution consumption is E
ОABOUT
оabout
го о VIabout VI
24,5 т/ч. Мольное соотношение карбоната и нитрата 10:1,24.5 t / h The molar ratio of carbonate and nitrate 10: 1,
Газо-жидкостную смесь облучают электронным пучком от ускорител . Степень удалени вредных примесей- составл ет : дл оксида азота (11) - 90%, дл оксида серы (IV) - 95%. Расход КаСОз -204 кмоль/ч.The gas-liquid mixture is irradiated with an electron beam from the accelerator. The degree of removal of harmful impurities is: for nitrogen oxide (11) - 90%, for sulfur oxide (IV) - 95%. Consumption KASOz -204 kmol / h.
П р и м е р 2. Дымовые газы (1,5 млн.), содержащие в 1 нм 1,5 г оксида азота и 7 г оксида серы (IV), смешивают с воздухом. Температура полученной смеси 100°С. В полученную газо-воздушную смесь впрыскивают водный раствор карбоната кали (м.д. 0,17) и нитрата кали (м.д. 0,017) с расходом 22,5 т/ч. Смесь облучают электронным пучком. Степень удалени оксида азота (II) - 90%, оксида серы (IV) - 95%. Расход К2СОз - 204 кмоль/ч.PRI mme R 2. Flue gases (1.5 million), containing 1 g of 1.5 g of nitric oxide and 7 g of sulfur (IV) oxide, are mixed with air. The temperature of the mixture obtained is 100 ° C. An aqueous solution of potassium carbonate (ppm, 0.17) and potassium nitrate (ppm: 0.017) is injected into the resulting gas-air mixture with a flow rate of 22.5 t / h. The mixture is irradiated with an electron beam. The degree of removal of nitrogen oxide (II) is 90%, sulfur oxide (IV) is 95%. Consumption K2SOz - 204 kmol / h.
Примерз.Froze
Дымовые газы (1,5 млн. нм /ч), содержащие в 1 нм3 1,5 г оксида азота (II) и 7 г оксида серы (IV), смешивают с воздухом. Температура полученной смеси - 120°С. В полученную газо-воздушную смесь впрыскивают водный раствор поташа (м. д. 0,19)Flue gases (1.5 million nm / h), containing in 1 nm3 1.5 g of nitric oxide (II) and 7 g of sulfur oxide (IV), are mixed with air. The temperature of the mixture is 120 ° C. An aqueous solution of potash is injected into the resulting gas-air mixture (ppm 0.19)
и нитрата кали (м.д. 0,019). Расход раствора - 20,4 т/ч. Расход КаСОз - 204 кмоль/ч. Смесь облучают электронным пучком. Степень удалени вредных примесей - та же,and potassium nitrate (ppm: 0.019). Solution consumption - 20.4 t / h. Consumption KASOz - 204 kmol / h. The mixture is irradiated with an electron beam. The degree of removal of harmful impurities is the same
что в примере 1.as in example 1.
Предлагаемый способ позвол ет снизить затраты на очистку на 16 коп. в расчете на 1000 нм3 дымовых газов по сравнению с известным способом. Продуктом способаThe proposed method can reduce the cleaning costs by 16 kopecks. per 1000 Nm3 of flue gases in comparison with the known method. Product mode
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884488686A SU1662647A1 (en) | 1988-10-03 | 1988-10-03 | Method of cleaning flue gases from nitrogen (ii) oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884488686A SU1662647A1 (en) | 1988-10-03 | 1988-10-03 | Method of cleaning flue gases from nitrogen (ii) oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1662647A1 true SU1662647A1 (en) | 1991-07-15 |
Family
ID=21401874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884488686A SU1662647A1 (en) | 1988-10-03 | 1988-10-03 | Method of cleaning flue gases from nitrogen (ii) oxide |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1662647A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315385A1 (en) * | 1993-05-08 | 1994-11-10 | Bayer Ag | Process for the denitrification of hot flue gases |
-
1988
- 1988-10-03 SU SU884488686A patent/SU1662647A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Реферативный журнал Хими , 1984, № 24, с. 596. * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4315385A1 (en) * | 1993-05-08 | 1994-11-10 | Bayer Ag | Process for the denitrification of hot flue gases |
| US5453258A (en) * | 1993-05-08 | 1995-09-26 | Bayer Aktiengesellschaft | Method of removing nitrogen oxides from hot flue gases |
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