HU208291B - Process for reducing the nitrogen oxide content of flue-gas - Google Patents
Process for reducing the nitrogen oxide content of flue-gas Download PDFInfo
- Publication number
- HU208291B HU208291B HU255890A HU255890A HU208291B HU 208291 B HU208291 B HU 208291B HU 255890 A HU255890 A HU 255890A HU 255890 A HU255890 A HU 255890A HU 208291 B HU208291 B HU 208291B
- Authority
- HU
- Hungary
- Prior art keywords
- ammonia
- urea
- gas
- solution
- additive
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008569 process Effects 0.000 title claims abstract description 21
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 38
- 239000003546 flue gas Substances 0.000 title claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 33
- 238000002485 combustion reaction Methods 0.000 claims abstract description 19
- 239000002699 waste material Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 24
- 239000004202 carbamide Substances 0.000 claims description 24
- 239000000654 additive Substances 0.000 claims description 17
- 230000000996 additive effect Effects 0.000 claims description 14
- 239000002351 wastewater Substances 0.000 claims description 9
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 239000002440 industrial waste Substances 0.000 claims description 5
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 claims description 4
- 239000002154 agricultural waste Substances 0.000 claims description 4
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000006259 organic additive Substances 0.000 claims description 4
- 239000000546 pharmaceutical excipient Substances 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002671 adjuvant Substances 0.000 claims 1
- 239000003638 chemical reducing agent Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 238000000354 decomposition reaction Methods 0.000 abstract description 2
- 238000000889 atomisation Methods 0.000 abstract 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 abstract 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 19
- 235000011114 ammonium hydroxide Nutrition 0.000 description 19
- 239000000243 solution Substances 0.000 description 17
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 16
- 239000002912 waste gas Substances 0.000 description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000002956 ash Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 150000002894 organic compounds Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- -1 SO X Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008092 positive effect Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- FYADHXFMURLYQI-UHFFFAOYSA-N 1,2,4-triazine Chemical compound C1=CN=NC=N1 FYADHXFMURLYQI-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000003158 alcohol group Chemical group 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000010791 domestic waste Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002357 guanidines Chemical class 0.000 description 1
- 229940083094 guanine derivative acting on arteriolar smooth muscle Drugs 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT100889A AT392422B (de) | 1989-04-26 | 1989-04-26 | Verfahren zur entfernung von stickoxiden |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| HU902558D0 HU902558D0 (en) | 1990-08-28 |
| HUT56527A HUT56527A (en) | 1991-09-30 |
| HU208291B true HU208291B (en) | 1993-09-28 |
Family
ID=3504808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU255890A HU208291B (en) | 1989-04-26 | 1990-04-25 | Process for reducing the nitrogen oxide content of flue-gas |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT392422B (cs) |
| CS (1) | CS276799B6 (cs) |
| HU (1) | HU208291B (cs) |
| YU (1) | YU47351B (cs) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5154871A (ja) * | 1974-11-09 | 1976-05-14 | Mitsubishi Chem Ind | Nenshohaigasuchunochitsusosankabutsuno bunkaiho |
| NL167334C (nl) * | 1975-01-13 | Mitsubishi Chem Ind | Werkwijze voor het verwijderen van stikstofoxyden uit een verbrandingsgas, in afwezigheid van een katalysator en in aanwezigheid van een ammoniakbron en zuurstof. | |
| DE2832397B1 (de) * | 1978-07-24 | 1979-11-29 | Didier Eng | Verfahren zur Senkung des Stickoxidgehaltes von Koksofenabgasen sowie Regenerativ-Verkokungsofen zur Durchfuehrung dieses Verfahrens |
| DE3872536D1 (de) * | 1987-02-11 | 1992-08-13 | Babcock Anlagen Gmbh | Verfahren zum einmischen von ammoniak in einen rauchgasstrom. |
-
1989
- 1989-04-26 AT AT100889A patent/AT392422B/de not_active IP Right Cessation
-
1990
- 1990-04-24 CS CS203690A patent/CS276799B6/cs unknown
- 1990-04-25 HU HU255890A patent/HU208291B/hu not_active IP Right Cessation
- 1990-04-25 YU YU82790A patent/YU47351B/sh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| HU902558D0 (en) | 1990-08-28 |
| CS276799B6 (en) | 1992-08-12 |
| ATA100889A (de) | 1990-09-15 |
| HUT56527A (en) | 1991-09-30 |
| AT392422B (de) | 1991-03-25 |
| YU82790A (en) | 1991-10-31 |
| CS9002036A2 (en) | 1991-09-15 |
| YU47351B (sh) | 1995-01-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HMM4 | Cancellation of final prot. due to non-payment of fee |