DE3545190C2 - - Google Patents
Info
- Publication number
- DE3545190C2 DE3545190C2 DE19853545190 DE3545190A DE3545190C2 DE 3545190 C2 DE3545190 C2 DE 3545190C2 DE 19853545190 DE19853545190 DE 19853545190 DE 3545190 A DE3545190 A DE 3545190A DE 3545190 C2 DE3545190 C2 DE 3545190C2
- Authority
- DE
- Germany
- Prior art keywords
- ammonia
- flue gas
- vapors
- thermal process
- fuel boiler
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/06—Treatment of sludge; Devices therefor by oxidation
-
- 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
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
- C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Verwertungsprodukten bei der Rauchgasentschwefelung, bei dem als Waschflüssigkeit mit Ammoniumverbindungen belastete Fluß- und Industriewässer einge setzt werden und ein Gemisch aus Rohgips und Zuschlag stoffen anfällt, das einem thermischen Prozeß unterworfen wird.The invention relates to a method for producing Recycling products for flue gas desulfurization, at the river and industrial waters contaminated with ammonium compounds as washing liquid be set and a mixture of raw gypsum and aggregate substances that are subjected to a thermal process becomes.
Es ist bekannt, daß hinter Rauchgas- Entschwefelungsanla gen eine gipsartige Masse anfällt und daß hinter Kraftwer ken Asche anfällt. Asche und Gips sowie weitere Zuschlag stoffe bilden vielfach die Rohmaterialbasis für ein daraus herzustellendes Endprodukt, das in der Zementindustrie und für den Berg- und Tunnelbau verwendet werden kann.It is known that behind flue gas desulfurization against a plaster-like mass and that behind Kraftwer no ash is produced. Ash and plaster as well as additional surcharge In many cases, materials form the raw material basis for one of them End product to be manufactured in the cement industry and can be used for mining and tunneling.
Es ist auch möglich, Fluß- oder Industriewässer für die Rauchgasreinigung zu nutzen, die mit Ammoniumverbindungen belastet sind. Wenn dann das dabei anfallende Gemisch aus Rohgips und Zuschlagstoffen einem thermischen Prozeß unter worfen wird, verdampft das die Ammoniumverbindungen enthal tende Wasser und belastet die Umwelt. Bisher mußten daher die dabei entstehenden Dämpfe und Rauchgas-Entschwefelungsanlagen wieder zugeführt werden, um somit eine umweltunschädliche Reinigung zu erzielen.It is also possible to use river or industrial water for the Use flue gas cleaning with ammonium compounds are burdened. Then when the resulting mixture from Raw gypsum and aggregates undergo a thermal process is thrown, that evaporates the ammonium compounds water and pollutes the environment. So far, therefore vapors and flue gas desulphurization plants can be fed back in order to be environmentally harmless To achieve cleaning.
Diese bekannte Arbeitsweise hat jedoch den Nachteil, daß sich die Ammoniumverbindungen in dem Waschwasser immer mehr anreichern, so daß bei kontinuierlicher Durchführung des Verfahrens Teilmengen aus dem Waschwasser herausgenommen und einer Abwasserbehandlung zugeführt werden müssen. Eine solche Arbeitsweise ist aber technisch aufwendig und kost spielig.However, this known method of working has the disadvantage that the ammonium compounds in the wash water more and more Enrich so that with continuous implementation of the Process portions removed from the wash water and have to be treated with waste water. A such a procedure is technically complex and expensive playful.
Aufgabe der Erfindung ist es daher, die bei der Durchfüh rung des eingangs genannten Verfahrens im Waschwasser ent haltenen Ammoniumverbindungen auf technisch einfache und umweltfreundliche Weise zu beseitigen.The object of the invention is therefore to implement tion of the process mentioned in the wash water ent keeping ammonium compounds on technically simple and eliminate environmentally friendly way.
Es wurde nun gefunden, daß diese Aufgabe erfindungsgemäß dadurch gelöst werden kann, daß bei dem Verfahren der ein gangs genannten Art die die Ammoniumverbindungen enthaltenden Dämpfe, die beim thermischen Prozeß anfallen, dem Flammenbe reich des Brennstoffkessels zugeführt werden. Dabei werden die in den Dämpfen enthaltenen gasförmigen Ammoniumverbin dungen, wie Ammoniak, thermisch zersetzt.It has now been found that this object is achieved according to the invention can be solved in that in the method of a initially mentioned type containing the ammonium compounds Vapors that arise during the thermal process, the flame be fed richly of the fuel boiler. In doing so the gaseous ammonium compound contained in the vapors thermal decomposition, such as ammonia.
Aus den DE-OS 31 22 423 und 30 21 875 zwar bereits Verfahren zur Beseitigung von Ammoniak aus Abgasen bekannt, bei denen die Ammoniak und dessen Verbindungen enthaltenden Abgase einer Brennerflamme zugeführt werden, wobei sich das Ammoniak und dessen Verbindungen bei den dort herrschenden hohen Temperaturen zersetzen, Verwertungsprodukte aus der Rauchgas-Entschwefelung zu gewinnen und dabei Ammoniumver bindungen enthaltende Industriewässer einzusetzen, aus denen der Ammoniak und seine Verbindungen umweltfreundlich beseitigt werden müssen, sind darin jedoch nicht angespro chen.From DE-OS 31 22 423 and 30 21 875 already Processes for removing ammonia from exhaust gases known in which the ammonia and its compounds containing Exhaust gases are fed to a burner flame, the Ammonia and its compounds among those who rule there decompose at high temperatures, recovery products from the Flue gas desulfurization to win and ammonium ver to use industrial water containing bonds which the ammonia and its compounds are environmentally friendly must be eliminated, however, are not addressed in it chen.
Gemäß einer bevorzugten Ausgestaltung der Erfindung wird das für die Rauchgas-Entschwefelung verwendete, Ammonium verbindungen enthaltende Waschwasser mit Alkali- oder Erd alkalilösungen versetzt, belüftet und die ammoniakhaltigen Dämpfen werden mit Luft ausgetrieben und dem Flammenbereich des Brennstoffkessels wieder zugeführt. Dadurch ist es möglich, Ammoniak aus den Ammoniumsalzen auszutreiben und das Waschwasser ohne Ammoniakbelastung für die Rauchgas- Entschwefelung wieder nutzbar zu machen, während das ausge triebene Ammoniak im Brenner thermisch zersetzt wird.According to a preferred embodiment of the invention the ammonium used for flue gas desulfurization washing water containing compounds with alkali or earth alkali solutions added, aerated and the ammonia-containing Vapors are expelled with air and the flame area of the fuel boiler again. That’s it possible to drive off ammonia from the ammonium salts and the wash water without ammonia pollution for the flue gas To make desulphurization usable again while that driven ammonia is thermally decomposed in the burner.
Claims (2)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853545190 DE3545190A1 (en) | 1985-12-20 | 1985-12-20 | Process for producing utilisable products downstream of a flue-gas desulphurisation |
EP86905803A EP0241496A1 (en) | 1985-10-11 | 1986-10-08 | Process for simultaneous extraction of so 2? and no x? contained in waste gases |
PCT/EP1986/000572 WO1987002269A1 (en) | 1985-10-11 | 1986-10-08 | Process for simultaneous extraction of so2 and nox contained in waste gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853545190 DE3545190A1 (en) | 1985-12-20 | 1985-12-20 | Process for producing utilisable products downstream of a flue-gas desulphurisation |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3545190A1 DE3545190A1 (en) | 1987-06-25 |
DE3545190C2 true DE3545190C2 (en) | 1989-05-11 |
Family
ID=6289001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853545190 Granted DE3545190A1 (en) | 1985-10-11 | 1985-12-20 | Process for producing utilisable products downstream of a flue-gas desulphurisation |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3545190A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19645835B4 (en) * | 1996-11-07 | 2006-02-16 | GFR Gesellschaft für die Aufbereitung und Verwertung von Reststoffen mbH | Process for the provision of ammonia gas and / or ammonia water for exhaust gas purification |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3021875C2 (en) * | 1980-06-11 | 1985-04-25 | L. & C. Steinmüller GmbH, 5270 Gummersbach | Method for applying the selective reduction of nitrogen oxides from flame combustion with the aid of ammonia |
DE3122423A1 (en) * | 1981-06-05 | 1982-12-30 | Linde Ag, 6200 Wiesbaden | Process for removing ammonia from exhaust gases |
DE3407702A1 (en) * | 1984-03-02 | 1985-09-12 | Knauf Westdeutsche Gips | Process and apparatus for removing ammonia and ammonium salts from coal-fired power station recyclings |
CS273316B2 (en) * | 1983-08-19 | 1991-03-12 | Knauf Westdeutsche Gipsw Geb | Method of dry, powder-like light ash derivative production and equipment for realization of this method |
-
1985
- 1985-12-20 DE DE19853545190 patent/DE3545190A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3545190A1 (en) | 1987-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0190416A2 (en) | Process for separating pollutants from combustion gases | |
DE3232077C2 (en) | Method and device for removing sulfur dioxide and other pollutants from flue gases | |
DE4138009A1 (en) | Slaking lime with temp. control using chemical modifier | |
DE2259763A1 (en) | DEVICE FOR CLEANING GASES CONTAINING NITROGEN OXIDES | |
DE102015111974A1 (en) | Process and plant for the production of cement clinker or other mineral products and for denitrification of bypass gases | |
DE3545190C2 (en) | ||
DE3129878A1 (en) | "Process for producing gypsum" | |
DE2242811A1 (en) | CONTINUOUS PROCESS FOR THE PRODUCTION OF EASILY DOSABLE FLOCKING AGENTS FROM RED MUD | |
DE3504775C2 (en) | ||
EP0250866B1 (en) | Process and device for simultaneous removal of sulfur dioxide and nitrogen oxides | |
DE2756186C3 (en) | Process for reducing the concentration of nitrogen oxides in exhaust gases by means of ultraviolet radiation | |
DE1471600A1 (en) | Process for converting the acidic, resinous residues resulting from the refining of hydrocarbons with sulfuric acid into flammable substances | |
DE2624484A1 (en) | Boiler heating surface flushing water treatment - by mixing dewatered sludge with cement binder and rapid hardener | |
DE3037995A1 (en) | Using gypsum from gas purificn. - by mixing with red mud, cement and calcium chloride, giving solid suitable for building material or dumping | |
DE1112053B (en) | Process and device for the production of alkali phosphates | |
DE3815963A1 (en) | Process and apparatus for removing ammonia from fly ash | |
DE3206766A1 (en) | METHOD FOR PRODUCING SILICON USED FOR SOLAR CELLS | |
EP3000522A1 (en) | Method for treating waste gases | |
DE2033961C3 (en) | Process for the desulphurization of acidic refining residues | |
DE3938885C2 (en) | Process for solidifying granular or powdery waste | |
DE3623628C2 (en) | ||
DE3123767A1 (en) | Process for the sanitation of carbonatation sludges | |
DE2904138C2 (en) | Process for the disposal of waste water containing fluorine compounds | |
DE2641627C3 (en) | Process for the production of a fertilizer from cane sugar molasses or cane sugar liquor | |
DE3021945A1 (en) | Mfg. impermeable residues from spent fume-absorbing media - by mixing with slag and compacting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |