DE3860576D1 - METHOD FOR THE ENVIRONMENTALLY FRIENDLY WASTE OF POLYCHLORIZED WASTE. - Google Patents
METHOD FOR THE ENVIRONMENTALLY FRIENDLY WASTE OF POLYCHLORIZED WASTE.Info
- Publication number
- DE3860576D1 DE3860576D1 DE8888103654T DE3860576T DE3860576D1 DE 3860576 D1 DE3860576 D1 DE 3860576D1 DE 8888103654 T DE8888103654 T DE 8888103654T DE 3860576 T DE3860576 T DE 3860576T DE 3860576 D1 DE3860576 D1 DE 3860576D1
- Authority
- DE
- Germany
- Prior art keywords
- degrees
- gas
- waste
- stage
- combustion
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title abstract 7
- 239000002699 waste material Substances 0.000 title abstract 5
- 238000002485 combustion reaction Methods 0.000 abstract 9
- 239000007789 gas Substances 0.000 abstract 9
- 239000000203 mixture Substances 0.000 abstract 7
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical class S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 5
- 239000000571 coke Substances 0.000 abstract 3
- 150000003071 polychlorinated biphenyls Chemical class 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- GJEAMHAFPYZYDE-UHFFFAOYSA-N [C].[S] Chemical compound [C].[S] GJEAMHAFPYZYDE-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical class C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000011269 tar Substances 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/38—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by oxidation; by combustion
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/22—Organic substances containing halogen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- General Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Treating Waste Gases (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Gasification And Melting Of Waste (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
1. A process for the pollution-free destruction of polychlorinated waste materials such as dibenzodioxines (PCCD), polychlorinated dibenzofuranes (PCDF) and polychlorinated biphenyls (PCB), characterized in that these substances or combustible residual materials contaminated with said substances are subjected to combustion together with waste sulfuric acids, acid tars and similar sulfur- and carbon-containing waste products of different composition and consistency in a multistage combustion furnace, wherein a) in a first stage, the mixture, optionally in combination with elemental sulfur, is fed onto a coke bed in a rotary furnace at a temperature of at least 400 degrees C and an amount of air equal to about 25 to 55% of the total amount of air required for the whole process is introduced as primary air, so that the resultant reducing mixture and the rear portion of the coke bed are heated to about 800 degrees C to 1100 degrees C, whereby any excess coke if formed is discharged at the end of the rotary furnace ; b) in a second stage, the gas mixture in an intermediate chamber is admixed with about 10 to 15% of the amount of air required for the whole process, while a space velocity per hour of about 200 to 400 Nm**3 of gas/m**3 of combustion space is maintained and the temperature of the gas mixture increases to about 1150 degrees C to 1350 degrees C ; c) in a third stage, the gas is fed into the forward combustion space of a secondary combustion chamber and mixed with another 20 to 45% of the amount of air required for the whole process, while a space velocity per hour of about 50 to 180 Nm**3 of gas/m**3 of combustion space is maintained and the gas mixture is being cooled to about 1000 degrees C to 1200 degrees C : and d) in a fourth stage, the remaining portion of the total air required in the overall process is fed into about the center portion of the secondary combustion chamber and mixed with the separation gas so that in the rear part of the secondary combustion chamber a temperature of about 1000 degrees C to 1200 degrees C is obtained and a space velocity per hour of about 150 to 400 Nm**3 of gas per m**3 of combustion space is maintained, whereupon, after completion of the reaction, the resulting gas mixture is cooled in a waste heat boiler and is reprocessed, preferably by way of a sulfuric acid contact process to form sulfuric acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8888103654T DE3860576D1 (en) | 1987-03-14 | 1988-03-09 | METHOD FOR THE ENVIRONMENTALLY FRIENDLY WASTE OF POLYCHLORIZED WASTE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3708310A DE3708310C1 (en) | 1987-03-14 | 1987-03-14 | Process for the environmentally friendly destruction of polychlorinated substances |
| DE8888103654T DE3860576D1 (en) | 1987-03-14 | 1988-03-09 | METHOD FOR THE ENVIRONMENTALLY FRIENDLY WASTE OF POLYCHLORIZED WASTE. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3860576D1 true DE3860576D1 (en) | 1990-10-18 |
Family
ID=6323069
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3708310A Expired DE3708310C1 (en) | 1987-03-14 | 1987-03-14 | Process for the environmentally friendly destruction of polychlorinated substances |
| DE8888103654T Expired - Lifetime DE3860576D1 (en) | 1987-03-14 | 1988-03-09 | METHOD FOR THE ENVIRONMENTALLY FRIENDLY WASTE OF POLYCHLORIZED WASTE. |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE3708310A Expired DE3708310C1 (en) | 1987-03-14 | 1987-03-14 | Process for the environmentally friendly destruction of polychlorinated substances |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0282880B1 (en) |
| AT (1) | ATE56523T1 (en) |
| DE (2) | DE3708310C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4111917C2 (en) * | 1991-04-12 | 1994-12-08 | Noell Dbi Energie Entsorgung | Process for the utilization of heavy metals contaminated combustible residues by partial oxidation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2947497C2 (en) * | 1979-11-24 | 1983-07-28 | Grillo-Werke Ag, 4100 Duisburg | Process and device for processing waste sulfuric acids, acid tars |
-
1987
- 1987-03-14 DE DE3708310A patent/DE3708310C1/en not_active Expired
-
1988
- 1988-03-09 EP EP88103654A patent/EP0282880B1/en not_active Expired - Lifetime
- 1988-03-09 AT AT88103654T patent/ATE56523T1/en not_active IP Right Cessation
- 1988-03-09 DE DE8888103654T patent/DE3860576D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE56523T1 (en) | 1990-09-15 |
| EP0282880A3 (en) | 1989-04-12 |
| EP0282880A2 (en) | 1988-09-21 |
| DE3708310C1 (en) | 1988-07-21 |
| EP0282880B1 (en) | 1990-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition | ||
| 8339 | Ceased/non-payment of the annual fee |