DE3604063A1 - Gas purification downstream of waste incineration plants - Google Patents
Gas purification downstream of waste incineration plantsInfo
- Publication number
- DE3604063A1 DE3604063A1 DE19863604063 DE3604063A DE3604063A1 DE 3604063 A1 DE3604063 A1 DE 3604063A1 DE 19863604063 DE19863604063 DE 19863604063 DE 3604063 A DE3604063 A DE 3604063A DE 3604063 A1 DE3604063 A1 DE 3604063A1
- Authority
- DE
- Germany
- Prior art keywords
- downstream
- waste incineration
- heavy metals
- gas purification
- dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004056 waste incineration Methods 0.000 title claims abstract 3
- 238000000746 purification Methods 0.000 title abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract description 7
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims abstract description 5
- 239000000920 calcium hydroxide Substances 0.000 claims abstract description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims description 2
- 239000004480 active ingredient Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 238000001556 precipitation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 3
- 239000003546 flue gas Substances 0.000 abstract description 3
- 230000002378 acidificating effect Effects 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 abstract 1
- 238000005201 scrubbing Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical group [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- KIZFHUJKFSNWKO-UHFFFAOYSA-M calcium monohydroxide Chemical compound [Ca]O KIZFHUJKFSNWKO-UHFFFAOYSA-M 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229940100892 mercury compound Drugs 0.000 description 1
- 150000002731 mercury compounds Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- -1 sulfur oxides calcium sulfite Chemical class 0.000 description 1
- 239000002699 waste material Substances 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
- B01D53/60—Simultaneously removing sulfur oxides and 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)
Abstract
Description
Es ist bekannt, hinter Müllverbrennungsanlagen trockene oder nasse Gasreinigungsanlagen oder deren Kombination nachzuschalten.It is known behind waste incinerators dry or wet gas cleaning plants or their To add a combination.
Es ist bekannt, daß in Trockenfiltern, insbesondere durch Zugabe von Kalkhydrat und einer gewissen Feuchte HCl, HF und auch SO2 und die meisten Schwermetalle abgeschieden werden können, jedoch die gasförmigen Schwermetalle, wie z.B. Quecksilber sich nur in einem nachgeschalteten Naßabscheider abscheiden lassen.It is known that in dry filters, in particular by adding hydrated lime and a certain moisture, HCl, HF and also SO 2 and most heavy metals can be separated, but the gaseous heavy metals, such as mercury, can only be separated in a downstream wet separator.
Zur Restemissionsabscheidung der noch im Rauchgas nach dem Trockenfilter befindlichen sauren Bestandteile wird dazu ein Naßabscheider geschaltet, dessen Wasch wasserkreislauf Calciumhydrat zudosiert wird, wobei sich aus den Schwefeloxiden Calciumsulfit und Calcium sulfat bilden.To remove residual emissions from the flue gas acidic components in the dry filter a wet separator is switched to wash it water circuit calcium hydrate is added, whereby consist of the sulfur oxides calcium sulfite and calcium form sulfate.
Um die flüchtigen Schwermetalle, insbesondere Quecksilber in der Naßwäsche aus dem Rauchgas zu binden, wird er findungsgemäß dem Waschwasser als Wirksubstanz Trimercapto-s-triazin zugegeben.The volatile heavy metals, especially mercury to bind from the flue gas in the wet wash, he will According to the washing water as an active substance Trimercapto-s-triazine added.
Eingesetzt wird das Trimercapto-s-triazin zweckdienlich in Form des Natriumsalzes.Trimercapto-s-triazine is useful in the form of the sodium salt.
Es besitzt eine hohe Umweltfreundlichkeit, die durch die Prüfung auf Fischschädlichkeit gemäß dem Goldorfen- Test nachgewiesen wurde.It has a high environmental friendliness due to the fish harm test according to the gold cast Test has been demonstrated.
Die gebildeten Feststoffe, bestehend aus dem Rückstands produkt CaSO3, CaSO4, dem freien CaOH2 mit den an Trimercapto-s-triazin gebundenen Schwermetallen, Quecksilber, Cadmium und Nickel, bilden in Wasser schwerlösliche stabile Verbindungen. The solids formed, consisting of the residue product CaSO 3 , CaSO 4 , the free CaOH 2 with the heavy metals bound to trimercapto-s-triazine, mercury, cadmium and nickel, form poorly soluble stable compounds in water.
Sie werden von verdünnten Säuren nicht angegriffen und weisen eine hohe Temperaturbeständigkeit auf.They are not attacked by dilute acids and have a high temperature resistance.
Diese Quecksilberverbindung zersetzt sich beispiels weise erst oberhalb von 210°C, wobei selbst unter diesen Bedingungen noch kein Quecksilber freigesetzt wird, sondern andere stabilere Verbindungen gebildet werden.This mercury compound decomposes, for example only above 210 ° C, even under no mercury released under these conditions is formed, but other more stable connections will.
Aus den abgelagerten Produkten hat sich gezeigt, daß Quecksilber nicht auslaugt.From the deposited products it has been shown that Mercury does not leach out.
Claims (1)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863604063 DE3604063A1 (en) | 1986-02-08 | 1986-02-08 | Gas purification downstream of waste incineration plants |
| EP87900093A EP0248855A1 (en) | 1985-12-04 | 1986-11-29 | PROCESS FOR SINGLE OR MULTI-PHASE PREFERABLY SIMULTANEOUS SO 2? AND NO x? SEPARATION FROM FLUE GASES IN A WET PROCESS |
| PCT/EP1986/000693 WO1987003506A2 (en) | 1985-12-04 | 1986-11-29 | PROCESS FOR SINGLE OR MULTI-PHASE PREFERABLY SIMULTANEOUS SO2 AND NOx SEPARATION FROM FLUE GASES IN A WET PROCESS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863604063 DE3604063A1 (en) | 1986-02-08 | 1986-02-08 | Gas purification downstream of waste incineration plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE3604063A1 true DE3604063A1 (en) | 1987-08-13 |
| DE3604063C2 DE3604063C2 (en) | 1988-12-29 |
Family
ID=6293746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19863604063 Granted DE3604063A1 (en) | 1985-12-04 | 1986-02-08 | Gas purification downstream of waste incineration plants |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3604063A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704533A1 (en) * | 1987-02-13 | 1988-08-25 | Kernforschungsz Karlsruhe | METHOD FOR CONTINUOUSLY MONITORING EMISSIONS AND IMMISSIONS FOR MERCURY |
| EP1040865A3 (en) * | 1999-03-31 | 2001-11-14 | McDermott Technology, Inc. | Mercury removal in utility wet scrubber using a chelating agent |
| US9844752B2 (en) | 2012-11-29 | 2017-12-19 | Alfa Laval Corporate Ab | System, a use of such a system and a multi system for cleaning exhaust gas |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1669314A1 (en) * | 1966-08-15 | 1970-08-13 | Hitachi Ltd | Process and device for desulphurization of industrial exhaust gases |
| FR2080451A5 (en) * | 1970-02-05 | 1971-11-12 | Osaka Soda Co Ltd | |
| DE2132231C3 (en) * | 1970-07-03 | 1973-08-30 | Outokumpu Oy | Process for separating and recovering mercury and / or selenium from gases containing mercury and / or selenium |
-
1986
- 1986-02-08 DE DE19863604063 patent/DE3604063A1/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1669314A1 (en) * | 1966-08-15 | 1970-08-13 | Hitachi Ltd | Process and device for desulphurization of industrial exhaust gases |
| FR2080451A5 (en) * | 1970-02-05 | 1971-11-12 | Osaka Soda Co Ltd | |
| DE2132231C3 (en) * | 1970-07-03 | 1973-08-30 | Outokumpu Oy | Process for separating and recovering mercury and / or selenium from gases containing mercury and / or selenium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3704533A1 (en) * | 1987-02-13 | 1988-08-25 | Kernforschungsz Karlsruhe | METHOD FOR CONTINUOUSLY MONITORING EMISSIONS AND IMMISSIONS FOR MERCURY |
| EP1040865A3 (en) * | 1999-03-31 | 2001-11-14 | McDermott Technology, Inc. | Mercury removal in utility wet scrubber using a chelating agent |
| US9844752B2 (en) | 2012-11-29 | 2017-12-19 | Alfa Laval Corporate Ab | System, a use of such a system and a multi system for cleaning exhaust gas |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3604063C2 (en) | 1988-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| D2 | Grant after examination | ||
| 8363 | Opposition against the patent | ||
| 8331 | Complete revocation |