DE2555220C2 - - Google Patents
Info
- Publication number
- DE2555220C2 DE2555220C2 DE2555220A DE2555220A DE2555220C2 DE 2555220 C2 DE2555220 C2 DE 2555220C2 DE 2555220 A DE2555220 A DE 2555220A DE 2555220 A DE2555220 A DE 2555220A DE 2555220 C2 DE2555220 C2 DE 2555220C2
- Authority
- DE
- Germany
- Prior art keywords
- dust
- oxidation
- liquid
- alkaline earth
- masses
- 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.)
- Expired
Links
Classifications
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- 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
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/301—Treating pyrogases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/303—Burning pyrogases
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Patentanspruchs.The invention relates to a method according to the preamble of the claim.
Ein solches Verfahren ist aus der DE-OS 23 31 156 bekannt.Such a method is known from DE-OS 23 31 156.
Zudem ist es bekannt, daß Absorptionsmassen, wie z. B. Erdalkalistäube, zur Absorption von SO₂, H₂S, HCl, HF und ähnlichen Rauchgasbegleitern geeignet sind. Jedoch die Absorption von NO x ist nicht genügend gewährleistet.In addition, it is known that absorption masses, such as. B. alkaline earth dust, are suitable for the absorption of SO₂, H₂S, HCl, HF and similar flue gas companions. However, the absorption of NO x is not sufficiently guaranteed.
In dem aus der DE-OS 23 04 784 bekannten sogenannten Naßverfahren ist zwar schon vorgeschlagen worden, H₂O₂ in Form einer sehr verdünnten, kalten wäßrigen Lösung in den mit Wasser gesättigten zu reinigenden Gasstrom einzuführen, jedoch müssen hierbei die Gase vorher von Staub und Ruß befreit und bei der chemischen Naßreinigung möglichst niedrige Temperaturen eingehalten werden.In the known from DE-OS 23 04 784 So-called wet processes have already been proposed been H₂O₂ in the form of a very dilute, cold aqueous solution in the saturated with water to introduce cleaning gas flow, however this removes dust and soot from the gases beforehand and if possible with chemical wet cleaning low temperatures are observed.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art anzugeben, bei dem ohne Vorreinigung zur Staub- und Rußbeseitigung und ohne Temperaturbegrenzung die NO x -Bestandteile wirksam entfernt werden können.The invention has for its object to provide a method of the type mentioned, in which the NO x components can be effectively removed without pre-cleaning for dust and soot removal and without temperature limitation.
Zur Lösung der Aufgabe wird vorgeschlagen, daß die Flüssigkeit aus Wasserstoffperoxid zur Aufoxidation von NO x besteht. Die überschüssige Feuchte der Oxidationsflüssigkeit wird von den nach der ersten Oxidationsstufe eingeblasenen trockenen Absorptionsmassen aufgenommen, so daß in dem nachgeschalteten Staubabscheider, z. B. Filtertuchabscheider, keine Inkrustationen auftreten.To achieve the object, it is proposed that the liquid consist of hydrogen peroxide for the oxidation of NO x . The excess moisture of the oxidation liquid is absorbed by the dry absorption masses blown in after the first oxidation stage, so that in the downstream dust separator, e.g. B. filter cloth separator, no incrustations occur.
In der Zeichnung ist die Vorrichtung zur
Durchführung des erfindungsgemäßen Verfahrens dargestellt.
Es werden bezeichnet
mit 1:die flüssige Oxidationsmasse, z. B. H₂O₂,
mit 2:der Vorratsbehälter für die Trockenabsorptionsmasse,
z. B. Erdalkalistaub,
mit 3:die Einsprühdüse für die Naßoxidation,
mit 4:die Düsen zum Einblasen der trockenen Absorptionsmasse,
mit 5:ein Staubfilter,
mit 6:ein unterdruckerzeugender Ventilator,
mit 7:die Abgabe der gewandelten Massen, z. B. CaSO₄.The drawing shows the device for carrying out the method according to the invention. They are labeled
with 1 : the liquid oxidation mass, e.g. B. H₂O₂, with 2 : the reservoir for the dry absorption mass, for. B. alkaline earth dust, with 3 : the spray nozzle for wet oxidation, with 4 : the nozzles for blowing in the dry absorption mass, with 5 : a dust filter, with 6 : a vacuum-generating fan, with 7 : the delivery of the converted masses, e.g. B. CaSO₄.
Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen beschriebenen und dargestellten Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, das Entfernen von SO₂, H₂S, HCl, HF und NO x so durchzuführen, daß an einer 1. Kontaktstelle das Rauchgas mit H₂O₂ beaufschlagt wird, und danach trockene Absorptionsstellen oder Strecken eingerichtet sind, die vorzugsweise Erdalkalistäube als Absorptionsmittel zugegeben in der Form, daß die Trockenabsorption für SO₂, H₂S, HCl usw. garantiert wird und gleichzeitig die überschüssige Feuchte oder Tropfenbildung aus dem vorher eingesprühten Oxidationsmittel mit aufgenommen wird.Of course, the invention is not limited to the training forms described and illustrated in detail above, but numerous modifications are possible without, however, deviating from the basic idea of removing SO₂, H₂S, HCl, HF and NO x in such a way that a 1st Contact point the flue gas is charged with H₂O₂, and then dry absorption points or lines are set up, which are preferably added alkaline earth dust as an absorbent in the form that dry absorption for SO₂, H₂S, HCl etc. is guaranteed and at the same time the excess moisture or droplet formation from the previously sprayed oxidant is included.
Claims (1)
Priority Applications (21)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752555220 DE2555220A1 (en) | 1975-05-06 | 1975-12-09 | Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage |
AT0305376A AT363918B (en) | 1975-05-06 | 1976-04-26 | METHOD AND DEVICE FOR PURIFYING GAS |
BR2662/76A BR7602662A (en) | 1975-05-06 | 1976-04-29 | GAS CLEANING PROCESS AND APPLIANCE |
SE7605102A SE422890B (en) | 1975-05-06 | 1976-05-04 | GAS PURIFICATION AND EQUIPMENT |
IT22934/76A IT1059765B (en) | 1975-05-06 | 1976-05-04 | GAS PURIFICATION DEVICE |
US05/683,205 US4061476A (en) | 1975-05-06 | 1976-05-04 | Gas purification method and apparatus |
FR7613443A FR2310151A1 (en) | 1975-05-06 | 1976-05-05 | METHOD AND DEVICE FOR GAS PURIFICATION |
CH564676A CH612593A5 (en) | 1975-05-06 | 1976-05-05 | |
DK200276A DK200276A (en) | 1975-05-06 | 1976-05-05 | GAS CLEANING PROCEDURE AND APPLIANCE |
NL7604793A NL7604793A (en) | 1975-05-06 | 1976-05-05 | METHOD AND DEVICE FOR CLEANING GASES. |
GB18345/76A GB1551356A (en) | 1975-05-06 | 1976-05-05 | Purification of gas |
GB4295478A GB1551357A (en) | 1975-05-06 | 1976-05-05 | Purification of gas |
BE2055003A BE841447A (en) | 1975-05-06 | 1976-05-05 | METHOD AND DEVICE FOR GAS PURIFICATION |
CA251,860A CA1059927A (en) | 1975-05-06 | 1976-05-05 | Gas purification method and apparatus |
AU13672/76A AU503617B2 (en) | 1975-05-06 | 1976-05-05 | Gas purification |
ES447653A ES447653A1 (en) | 1975-05-06 | 1976-05-06 | Gas purification method and apparatus |
JP51051632A JPS608854B2 (en) | 1975-05-06 | 1976-05-06 | Gas purification method and equipment |
MX76100284U MX3628E (en) | 1975-05-06 | 1976-05-06 | IMPROVEMENTS IN PROCEDURE AND DEVICE FOR GAS DEPURATION |
US05/844,185 US4201751A (en) | 1975-05-06 | 1977-10-21 | Gas purification |
GB4387177A GB1594855A (en) | 1975-05-06 | 1977-10-21 | Purification of gases |
US05/869,147 US4206186A (en) | 1975-02-06 | 1978-01-13 | Refuse pyrolysis |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19752520045 DE2520045A1 (en) | 1975-05-06 | 1975-05-06 | Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage |
DE19752555220 DE2555220A1 (en) | 1975-05-06 | 1975-12-09 | Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2555220A1 DE2555220A1 (en) | 1977-06-23 |
DE2555220C2 true DE2555220C2 (en) | 1987-11-19 |
Family
ID=25768853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19752555220 Granted DE2555220A1 (en) | 1975-02-06 | 1975-12-09 | Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2555220A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3908052A1 (en) * | 1989-03-13 | 1990-09-20 | Ftu Gmbh | Process and apparatus for treating exhaust gases by oxidation of pollutants |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4216772A1 (en) * | 1992-05-21 | 1993-12-16 | Ftu Forschung Und Tech Entwick | Pre-purified gas or waste gas denitrification - by oxidising nitric oxide to nitrogen di:oxide or nitric acid with hydrogen peroxide and absorption on calcium hydroxide powder, avoiding di:nitrogen oxide formation |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE794918A (en) * | 1972-02-04 | 1973-08-02 | Oxysynthese | PROCESS FOR CLEANING INDUSTRIAL FUMES, COMBUSTION PRODUCTS AND GASEOUS EFFLENTS BEFORE RELEASE TO THE ATMOSPHERE |
JPS49126566A (en) * | 1973-04-10 | 1974-12-04 | ||
DE2331156B2 (en) * | 1973-06-19 | 1978-05-24 | Stahlwerke Roechling - Burbach Gmbh, 6620 Voelklingen | Device for removing gaseous pollutants contained in exhaust gases |
-
1975
- 1975-12-09 DE DE19752555220 patent/DE2555220A1/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3908052A1 (en) * | 1989-03-13 | 1990-09-20 | Ftu Gmbh | Process and apparatus for treating exhaust gases by oxidation of pollutants |
DE3908052B4 (en) * | 1989-03-13 | 2004-12-09 | Ftu Gmbh | Process for the treatment of exhaust gases with oxidation of pollutants |
Also Published As
Publication number | Publication date |
---|---|
DE2555220A1 (en) | 1977-06-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8162 | Independent application | ||
Q161 | Has additional application no. |
Ref document number: 2617053 Country of ref document: DE |
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8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |