SE436516B - PROCEDURE FOR COMBINED SWITCHING AND GAS PURIFICATION, PARTICULARLY IN THE FUELING OF FOSSIL FUELS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE - Google Patents
PROCEDURE FOR COMBINED SWITCHING AND GAS PURIFICATION, PARTICULARLY IN THE FUELING OF FOSSIL FUELS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDUREInfo
- Publication number
- SE436516B SE436516B SE8104412A SE8104412A SE436516B SE 436516 B SE436516 B SE 436516B SE 8104412 A SE8104412 A SE 8104412A SE 8104412 A SE8104412 A SE 8104412A SE 436516 B SE436516 B SE 436516B
- Authority
- SE
- Sweden
- Prior art keywords
- gas
- unit
- carried out
- heat exchangers
- procedure
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/02—Arrangements of regenerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/40—Sorption with wet devices, e.g. scrubbers
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Gas Separation By Absorption (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Treating Waste Gases (AREA)
Description
81_04l+12-5 10 15 20 25 30 Principen för ett textilt spärrfilter är, att stoftpar- tiklar, som befinner sig i en gas på väg mot filtret, fastnar på filterduken på grund av vissa elektriska och fysikaliska krafter. När igensättningen av filterduken har pågått en viss tid och då därmed tryckfallet över denna har ökat upp till ett visst värde) upphör filtreringen och ren gas passerar i reverserad riktning för att lösgöra huvuddelen av de partiklar som har fastnat varefter dessa sedimenterar ned i en stoftficka. 81_04l + 12-5 10 15 20 25 30 The principle of a textile barrier filter is that dust particles, which are in a gas on the way to the filter, get stuck on the filter cloth due to certain electrical and physical forces. When the clogging of the filter cloth has been going on for a certain time and then the pressure drop across it has increased up to a certain value) the filtration stops and pure gas passes in the reverse direction to loosen the main part of the particles that have stuck after which they settle in a dust pocket.
Genom att tillföra basiska ämnen och/eller vatten till rökgasen erhåller man en kemisk reaktion mellan dessa och huvuddelen av de gasformiga svavelföreningarna, varvid de senare övergår i fasta svavelföreningar, som sedan av- Üskiljas tillsammans med övrigt stoft, om stoftfilter an- vändes. ß a' _ H _. . . N U N Regnerativ varmevaxling innebar att gaser omvaxlande stromma genom två värmeväxlarmassor, varvid den kallare gasen upp- tager den värme som har avgivits av varm gas till en av värmeväxlarmassorna i en tidigare cykel.By adding basic substances and / or water to the flue gas, a chemical reaction is obtained between these and the main part of the gaseous sulfur compounds, the latter being transformed into solid sulfur compounds, which are then separated together with other dust, if dust filters were used. ß a '_ H _. . . N U N Regenerative heat exchange meant that gases alternately flowed through two heat exchanger masses, whereby the colder gas absorbs the heat that has been given off by hot gas to one of the heat exchanger masses in a previous cycle.
Föreliggande uppfinning har till ändamål att åstadkomma ett enkelt förfarande med tillhörande anordning för kom- binerad värmeväxling-och gasreníng och kännetecknas av vad som framgår av bifogade patentkrav.The present invention has for its object to provide a simple method with associated device for combined heat exchange and gas purification and is characterized by what appears from the appended claims.
Uppfinningen skall nu närmare beskrivas under hänvisning till bifogad ritning, där fig 1 visar anordningens princi- piella uppbyggnad och figur 2 visar gasväxlaren 12 eller 33 i figur 1.The invention will now be described in more detail with reference to the accompanying drawing, in which Fig. 1 shows the principle structure of the device and Fig. 2 shows the gas exchanger 12 or 33 in Fig. 1.
I figur 1 avser kanal I varm förorenad gas från en pannan- läggning, kanal II förvärmd förbränningsluft till pannan- 10 20 25 30 35 81011412-5 läggningen, kanal IIIkall förbränningsluft från intags- huv och kanal IV kall rökgas till skorsten. Gasväxlarna 12 och 13 äro lika och strömníngarna i kanalerna I-IV äro oberoende av gasväxlarnas lägen. Övriga delar bestå' av två lika enheter a och b, där a 0 avser en stoftficka, a 1 en reaktionsdel, a 2 en filterkassett a 3 primär, massa innehållande värmeväxlare, a 4 sekundär, massa innehållande värmeväxlare, a 5 ledning för kall rökgas, a 6 ledning för kall förbränningsluft, a 7 ledning för kondensvatten, a 8 ledning för insprutning av vatten och/eller basiska ämnen, a 9 ledning för varm förorenad rökgas, a 10 ledning för förvärmd förbränningsluft och a 11 organ för dosering av basiska ämnen. Motsvarande be- teckningar gälla för enhet b. Gasväxlarna 12 och 13 fun- gera på sådant sätt, att gas strömmar samtidigt i led- ningarna a 5, a 9, b 6 och b 10, när enheten a mottager rökgasen. I ledningarna a 6, a 10, b 5 och b 9 strömmar då ingen gas. Figur 1 visar detta fall. Pilarna med parentes avser strömningen, när enhet b är filtrerade.In Figure 1, duct I refers to hot polluted gas from a boiler plant, duct II preheated combustion air to the boiler plant, duct III cold combustion air from the intake hood and duct IV cold flue gas to the chimney. The gas exchangers 12 and 13 are equal and the currents in the channels I-IV are independent of the positions of the gas exchangers. Other parts consist of two equal units a and b, where a 0 refers to a dust pocket, a 1 a reaction part, a 2 a filter cassette a 3 primary, mass containing heat exchanger, a 4 secondary, mass containing heat exchanger, a 5 line for cold flue gas , a 6 line for cold combustion air, a 7 line for condensation water, a 8 line for injection of water and / or basic substances, a 9 line for hot polluted flue gas, a 10 line for preheated combustion air and a 11 means for dosing basic substances . Corresponding designations apply to unit b. The gas switches 12 and 13 function in such a way that gas flows simultaneously in lines a 5, a 9, b 6 and b 10, when unit a receives the flue gas. In the lines a 6, a 10, b 5 and b 9 no gas then flows. Figure 1 shows this case. The arrows in parentheses refer to the flow, when unit b is filtered.
Antag att enhet a är filtrerande. Den varma rökgasen från kanal I strömmar då via gasväxlaren 12 och ledningen a 9 in i enhet a:s reaktionsdel a 1, varvid en del av stoften har avlänkats ned till stoftfickan a 0. Samtidigt sprutas basiska ämnen och/eller vatten in via ledningen a 8. En kemisk reaktion kan härvid ske mellan gasformiga svavelgaser och det insprutade basiska ämnet under gasens uppehåll i reaktionsdelen a 1, varvid bildas fasta svavel- , föreningar, som filtreras på filterkassetten a 2 till- nsammans med övrigt stoft. Om endast vatten sprutas in i 'rökgasen, erhåller man en förhöjd reaktion mellan flyg- askans alkaliska beståndsdelar och svavelgaserna, särskilt på filterkassetten. Gasen uppvärmer därefter massorna i den primära a 3 och den sekundära värmeväxlaren a 4,varvid den själv avkyles och kommer sedan in i kanal IV via gas- växlaren 12 och ledningen a 5. Utkondenserat vatten från 811041412-5 10 15. 20 25 30 - a 4_dräneras via ledningen a 7. Under samma cykel kommer den kalla förbränningsluften från kanal III via gas- 'växlaren 13 och ledningen b 6 till massorna i den sekun- dära värmeväxlaren b 4 och den primära värmeväxlaren b 3.Assume that unit a is filtering. The hot flue gas from channel I then flows via the gas exchanger 12 and the line a 9 into the reaction part a 1 of unit a, whereby a part of the dust has been deflected down to the dust pocket a 0. At the same time basic substances and / or water are injected via the line a 8. A chemical reaction can then take place between gaseous sulfur gases and the injected basic substance during the pause of the gas in the reaction part a 1, whereby solid sulfur compounds are formed, which are filtered on the filter cassette a 2 together with other dust. If only water is injected into the flue gas, an elevated reaction is obtained between the alkaline constituents of the fly ash and the sulfur gases, especially on the filter cartridge. The gas then heats the masses in the primary a 3 and the secondary heat exchanger a 4, whereby it cools itself and then enters channel IV via the gas exchanger 12 and the line a 5. Condensed water from 811041412-5 10 15. 20 25 30 - a 4 is drained via line a 7. During the same cycle, the cold combustion air comes from duct III via gas exchanger 13 and line b 6 to the masses of the secondary heat exchanger b 4 and the primary heat exchanger b 3.
Härvid upptages det värme, som under den förra cykeln har lagrats i dessa värmeväxlarmassor, varvid dessa av- kylas.In this case, the heat which has been stored in these heat exchanger masses during the previous cycle is absorbed, whereby these are cooled.
Cykelns tid bestämmes nu på så sätt, att massan i den primära värmeväxlaren b 3 icke blir så kall, att vatten -ackumuleras i denna under den påföljande cykeln, när -rökgas med hög vattenhalt går igenom och kyles i denna värmeväxlarmassa. Vatten kommer härvid att endast utkon- denseras i massan i den sekundära värmeväxlaren b 4 och denna kommer därigenom att tfänstgöra som en Vattenav- skiljare, och detta vatten föres via ledningen b 7 till en ackumuleringstank för att under enhet b:s filtrerings- cykel, eventuellt tillsammans med basiska ämnen via led- ningen b 11, sprutas in i reaktordelen b 1. Man uppnår härvid, att vatten, som utnyttjas för gasreningen, kan recirkuleras.The time of the cycle is now determined in such a way that the mass in the primary heat exchanger b3 does not become so cold that water -accumulates in it during the subsequent cycle, when - flue gas with high water content passes through and is cooled in this heat exchanger mass. Water will in this case only be condensed into the mass in the secondary heat exchanger b 4 and this will thereby act as a water separator, and this water is conveyed via the line b 7 to an accumulation tank to during the filtration cycle of unit b. possibly together with basic substances via line b 11, is injected into the reactor part b 1. It is thereby achieved that water used for gas purification can be recycled.
Den av massorna i värmeväxlarna b 3 och b 4 uppvärmda 'gasen kommer nu att rensa filterkassetten b 2 från stoft, 'vilket sedimenterar ned i stoftfickan b 0, varefter gasen lämnar b 1 och via ledningen b 10 och gasväxlaren 12 kommer in i kanalen II för att sedan gå till pannan och där utgöra förvärmd förbränningsluft.The gas heated by the masses in the heat exchangers b 3 and b 4 will now clean the filter cassette b 2 from dust, which settles down into the dust pocket b 0, after which the gas leaves b 1 and via line b 10 and the gas exchanger 12 enters the duct II to then go to the boiler and there constitute preheated combustion air.
Gasväxlarna 12 och 13 i figur 1 skola nu närmare beskrivas i figur 2. Gasväxlaren 13 består av tvâ triangulära kammare, som äro förenade med varandra utefter sin respek- tive basdel, där den ena kammaren mottager gas genom kanalen III. Denna gas föres antingen till ledningen a 6 eller ledningen b 6 beroende på läget hos ett ventilblad 1.The gas exchangers 12 and 13 in Figure 1 will now be described in more detail in Figure 2. The gas exchanger 13 consists of two triangular chambers, which are connected to each other along their respective base part, where one chamber receives gas through the channel III. This gas is fed to either line a 6 or line b 6 depending on the position of a valve blade 1.
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8104412A SE436516B (en) | 1981-07-16 | 1981-07-16 | PROCEDURE FOR COMBINED SWITCHING AND GAS PURIFICATION, PARTICULARLY IN THE FUELING OF FOSSIL FUELS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE |
AU86837/82A AU8683782A (en) | 1981-07-16 | 1982-07-13 | Process for combined heat exchanging and gas cleaning and device for the accomplishing of this process |
DE19823248894 DE3248894A1 (en) | 1981-07-16 | 1982-07-13 | METHOD FOR COMBINING HEAT EXCHANGE AND GAS PURIFICATION, AND DEVICE FOR CARRYING OUT THE METHOD |
PCT/SE1982/000241 WO1983000372A1 (en) | 1981-07-16 | 1982-07-13 | Process for combined heat exchanging and gas cleaning and device for the accomplishing of this process |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8104412A SE436516B (en) | 1981-07-16 | 1981-07-16 | PROCEDURE FOR COMBINED SWITCHING AND GAS PURIFICATION, PARTICULARLY IN THE FUELING OF FOSSIL FUELS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8104412L SE8104412L (en) | 1983-01-17 |
SE436516B true SE436516B (en) | 1984-12-17 |
Family
ID=20344267
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8104412A SE436516B (en) | 1981-07-16 | 1981-07-16 | PROCEDURE FOR COMBINED SWITCHING AND GAS PURIFICATION, PARTICULARLY IN THE FUELING OF FOSSIL FUELS AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE436516B (en) |
WO (1) | WO1983000372A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3312784A1 (en) * | 1983-04-09 | 1984-10-11 | Saarbergwerke AG, 6600 Saarbrücken | REGENERATIVE HEAT TRANSFER SYSTEM |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1178109A (en) * | 1965-12-29 | 1970-01-21 | Combustion Eng | Method and Apparatus for Air Pollution Control |
US3634026A (en) * | 1969-07-25 | 1972-01-11 | Proctor & Schwartz Inc | Apparatus and method thermal regenerative gas processing |
GB1316143A (en) * | 1970-02-09 | 1973-05-09 | Head Wrightson & Co Ltd | Incinerator plant |
AT329523B (en) * | 1971-02-04 | 1976-05-10 | Patentverwertung Ges M B H | PROCESS FOR THE REMOVAL OF SO2 CONTAINING COMBUSTION GASES FROM SULFUR DIOXYDE |
JPS5620893B1 (en) * | 1971-07-10 | 1981-05-16 | ||
DE2406467A1 (en) * | 1974-02-11 | 1975-08-21 | Schneider Kg Ask A | Heat recovery system for firing systems - has heat exchanger for separating toxic substances from flue gases |
DE2501503C3 (en) * | 1975-01-16 | 1978-04-20 | Ruhrkohle Ag, 4300 Essen | Process for reducing the sulfur content in exhaust gases from fluidized bed furnaces |
-
1981
- 1981-07-16 SE SE8104412A patent/SE436516B/en not_active IP Right Cessation
-
1982
- 1982-07-13 WO PCT/SE1982/000241 patent/WO1983000372A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO1983000372A1 (en) | 1983-02-03 |
SE8104412L (en) | 1983-01-17 |
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