DE3642178A1 - Process and apparatus for dry SO2 and NOx separation downstream of fired boiler plants - Google Patents
Process and apparatus for dry SO2 and NOx separation downstream of fired boiler plantsInfo
- Publication number
- DE3642178A1 DE3642178A1 DE19863642178 DE3642178A DE3642178A1 DE 3642178 A1 DE3642178 A1 DE 3642178A1 DE 19863642178 DE19863642178 DE 19863642178 DE 3642178 A DE3642178 A DE 3642178A DE 3642178 A1 DE3642178 A1 DE 3642178A1
- Authority
- DE
- Germany
- Prior art keywords
- filter
- coke
- separation
- bulk
- dust
- 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.)
- Withdrawn
Links
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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8637—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (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)
Abstract
Description
Es ist bekannt, SO2 und NO x durch Rauchgaswaschanlagen oder trockene Additivanlagen abzuscheiden und hinter der SO2-Ab scheidung Katalysatoren einzusetzen, um die NO x -Belastung zu reduzieren.It is known to separate SO 2 and NO x using flue gas scrubbing plants or dry additive plants and to use catalysts behind the SO 2 separation to reduce the NO x pollution.
Es ist weiterhin bekannt, Koks aus Steinkohle oder Braunkohle zu nutzen, um NO x abzuscheiden.It is also known to use coke from hard coal or brown coal to separate NO x .
Um mit den bekannten Reduktionsmittel Stein- und/oder Braun kohlenkoks eine zuverlässige, wirtschaftliche, einfach zu betreibende Anlagentechnologie herzustellen, wird erfindungs gemäß ein Verfahren vorgeschlagen, das zur SO2- und zur NO x - Abscheidung wirtschaftlich vertretbar geeignet ist.In order to produce a reliable, economical, easy-to-operate plant technology with the known reducing agents stone and / or brown coal coke, a method is proposed according to the invention which is economically justifiable for SO 2 and NO x separation.
In der Zeichnung ist die erfindungsgemäße Aus
führung dargestellt -
mit (1) das vom Kessel kommende Rohgas
mit (2) ein noch nicht verwendeter Braun- und/oder Stein
kohlenkoks, der über Leitungen (3) in den Schütt
bettvorfilter (5) eingeführt wird - im Vorfilter
wird das im Rohgas enthaltene SO2 höchstmöglich ab
geschieden, bei (4) wird NH3 verdüst für den Schütt
filter (6) zur NO x -Abscheidung zugegeben und das
im Schüttvorfilter (5) genutzte Koksabsorptionsmittel
wird über einen Drucksender (4 a) dem Schüttfilter (7)
pneumatisch zugeführt und in diesem Filter zur Rest
abscheidung von SO2 und NO x und durchgerissenem
Schlupf von Reduktionsgasen, wie NH3, genutzt.In the drawing, the implementation according to the invention is shown -
with ( 1 ) the raw gas coming from the boiler
with ( 2 ) an unused brown and / or hard coal coke, which is introduced into the bulk bed prefilter ( 5 ) via lines ( 3 ) - in the prefilter, the SO 2 contained in the raw gas is separated as much as possible, at ( 4 ) NH 3 atomized for the bulk filter ( 6 ) for NO x separation and the coke absorbent used in the bulk prefilter ( 5 ) is pneumatically fed to the bulk filter ( 7 ) via a pressure transmitter ( 4 a) and in this filter for the remaining separation of SO 2 and NO x and cracked slippage of reducing gases such as NH 3 .
Der genutzte Koks aus dem Schüttfilter (6) und Schüttfilter (7) sowie aus dem Staubfilter (8) über pneumatische Förderanlagen (4 b, 4 c und 4 d) pneuma tisch dem Kessel zugefördert.The coke used from the bulk filter ( 6 ) and bulk filter ( 7 ) and from the dust filter ( 8 ) via pneumatic conveyors ( 4 b , 4 c and 4 d) pneumatically fed to the boiler.
Aufgrund dieser einfachen Schüttfiltertechnik und der Verknüpfung mit pneumatischen Druckförderanlagen, die intermittierend entsprechend dem verbrauchten Reaktionskoks arbeiten, ist eine umweltfreundliche Technologie gewährleistet, die das Rückstandsprodukt vollständig aus dem Katalysatorbereich zur Abscheidung von SO2 und NO x und Reduktionsgas, wie NH3, in den Verbrennungsraum zum Kessel zufördert, wobei hier erfindungsgemäß der Kessel mit einer SO2-Abscheidung versehen sein muß, um die aus dem Koks - z. B. Braunkohlenkoks - sich freisetzenden Restmengen von SO2 in der in den Kessel integrierten oder nachgeordneten SO2-Abscheidungsanlage abzuscheiden und Reduktionsnebenprodukte, wie z. B. Ammoniumverbindungen im Kessel zu verbrennen und somit eine umweltfreundliche SO2- und NO x -Abscheidung ohne Rückstandsprodukt zu gewährleisten.This simple bulk filter technology and the connection with pneumatic pressure conveyor systems that work intermittently according to the used reaction coke ensures an environmentally friendly technology that completely removes the residue product from the catalyst area for the separation of SO 2 and NO x and reducing gas, such as NH 3 , into the combustion chamber conveyed to the boiler, here according to the invention the boiler must be provided with an SO 2 separator in order to extract from the coke - e.g. B. Lignite coke - releasing residual amounts of SO 2 in the boiler integrated or downstream SO 2 separation system and reducing by-products such. B. burn ammonium compounds in the boiler and thus ensure environmentally friendly SO 2 and NO x separation without residue product.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863642178 DE3642178A1 (en) | 1986-12-10 | 1986-12-10 | Process and apparatus for dry SO2 and NOx separation downstream of fired boiler plants |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863642178 DE3642178A1 (en) | 1986-12-10 | 1986-12-10 | Process and apparatus for dry SO2 and NOx separation downstream of fired boiler plants |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3642178A1 true DE3642178A1 (en) | 1988-06-23 |
Family
ID=6315886
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863642178 Withdrawn DE3642178A1 (en) | 1986-12-10 | 1986-12-10 | Process and apparatus for dry SO2 and NOx separation downstream of fired boiler plants |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3642178A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0410977A4 (en) * | 1988-03-08 | 1990-12-14 | Arthur F Johnson | Economic recovery and utilization of boiler flue gas pollutants. |
EP0436822A2 (en) * | 1990-01-12 | 1991-07-17 | Krupp Polysius Ag | Process for the purification of exhaust gases of plants for the production of cement clinker |
EP0461305A1 (en) * | 1990-06-12 | 1991-12-18 | Krupp Polysius Ag | Process for the purification of exhaust gases of plants for the production of cement clinker |
EP2289608A3 (en) * | 2009-08-25 | 2011-09-07 | Babcock & Wilcox Power Generation Group, Inc. | System and method for protecting a SCR catalyst from large particle ash |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3232543A1 (en) * | 1981-09-10 | 1983-06-30 | Mitsui Mining Co., Ltd., Tokyo | METHOD FOR REMOVING SULFUR AND NITROGEN OXIDS FROM AN EXHAUST GAS |
DE3443686A1 (en) * | 1984-11-30 | 1986-06-05 | VGU Dr. Volker Grumbrecht GmbH, 5270 Gummersbach | Process for the elimination of nitrogen oxides and sulphur oxides from gases |
DE3512169A1 (en) * | 1985-04-03 | 1986-10-09 | Bergwerksverband Gmbh, 4300 Essen | CATALYSTS FOR EMISSION OF NITROGEN FROM EXHAUST GAS |
WO1986005711A1 (en) * | 1985-04-03 | 1986-10-09 | Bergwerksverband Gmbh | Use of an active coke for removal of nitrogen oxide from exhaust gases |
-
1986
- 1986-12-10 DE DE19863642178 patent/DE3642178A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3232543A1 (en) * | 1981-09-10 | 1983-06-30 | Mitsui Mining Co., Ltd., Tokyo | METHOD FOR REMOVING SULFUR AND NITROGEN OXIDS FROM AN EXHAUST GAS |
DE3443686A1 (en) * | 1984-11-30 | 1986-06-05 | VGU Dr. Volker Grumbrecht GmbH, 5270 Gummersbach | Process for the elimination of nitrogen oxides and sulphur oxides from gases |
DE3512169A1 (en) * | 1985-04-03 | 1986-10-09 | Bergwerksverband Gmbh, 4300 Essen | CATALYSTS FOR EMISSION OF NITROGEN FROM EXHAUST GAS |
WO1986005711A1 (en) * | 1985-04-03 | 1986-10-09 | Bergwerksverband Gmbh | Use of an active coke for removal of nitrogen oxide from exhaust gases |
WO1986005710A1 (en) * | 1985-04-03 | 1986-10-09 | Bergwerksverband Gmbh | Catalyst for removing nitrogen oxide from exhaust gases |
Non-Patent Citations (2)
Title |
---|
DE-Z: Chem.-Ing.-Techn. 57, 1985, Nr.3, S.239-241 * |
DE-Z: Staub-Reinhaltung der Luft, H.9, 1985, Dokumentation Rauchgasreinigung, S.56-59 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0410977A4 (en) * | 1988-03-08 | 1990-12-14 | Arthur F Johnson | Economic recovery and utilization of boiler flue gas pollutants. |
EP0410977A1 (en) * | 1988-03-08 | 1991-02-06 | JOHNSON, Arthur F. | Economic recovery and utilization of boiler flue gas pollutants |
EP0436822A2 (en) * | 1990-01-12 | 1991-07-17 | Krupp Polysius Ag | Process for the purification of exhaust gases of plants for the production of cement clinker |
EP0436822A3 (en) * | 1990-01-12 | 1991-10-02 | Krupp Polysius Ag | Process for the purification of exhaust gases of plants for the production of cement clinker |
EP0461305A1 (en) * | 1990-06-12 | 1991-12-18 | Krupp Polysius Ag | Process for the purification of exhaust gases of plants for the production of cement clinker |
EP2289608A3 (en) * | 2009-08-25 | 2011-09-07 | Babcock & Wilcox Power Generation Group, Inc. | System and method for protecting a SCR catalyst from large particle ash |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |