ES475453A1 - Purifying waste gases from nuclear reprocessing plants - Google Patents
Purifying waste gases from nuclear reprocessing plantsInfo
- Publication number
- ES475453A1 ES475453A1 ES475453A ES475453A ES475453A1 ES 475453 A1 ES475453 A1 ES 475453A1 ES 475453 A ES475453 A ES 475453A ES 475453 A ES475453 A ES 475453A ES 475453 A1 ES475453 A1 ES 475453A1
- Authority
- ES
- Spain
- Prior art keywords
- column
- iodine
- flow
- hyper
- counter
- 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
-
- 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
- B01D53/68—Halogens or halogen compounds
-
- 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
-
- 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
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Treating Waste Gases (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
In the purification of waste gases containing nitric oxides, iodine and iodine compounds and triturated water vapour from a nuclear reprocessing plant, hyper-azeotropic nitric acid is introduced at the head (6) of a counter-current gas/liquid contact column (4) and then conducted through a co-current contact column (1) where it is cooled to a temperature of up to -65 DEG C. Waste gas to be purified (22) is introduced into the head of column (1), and thence follows the path (23), (24) and (7). Organic iodine compounds and iodine are partially oxidised, in the cooler lower part of column (1), while in the warmer upper region of column (1) a proportion of the NO oxidised by the hyper-azeotropic nitric acid to NO2. NO2, iodine and water vapour are substantially absorbed by the hyper- azeotropic nitric acid during the subsequent passage through the counter-flow column (4). The flow ratio V=G/F of gas flow G and liquid flow F at any point of the counter-flow column is smaller than the iodine distribution coefficient D (G/F), (c, T), whereby c is the iodine concentration and T the temperature.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19782800120 DE2800120C2 (en) | 1978-01-03 | 1978-01-03 | Process for cleaning the exhaust gases of a reprocessing plant for irradiated nuclear fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES475453A1 true ES475453A1 (en) | 1979-05-16 |
Family
ID=6028890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES475453A Expired ES475453A1 (en) | 1978-01-03 | 1978-11-28 | Purifying waste gases from nuclear reprocessing plants |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE872333A (en) |
| BR (1) | BR7900005A (en) |
| DE (1) | DE2800120C2 (en) |
| ES (1) | ES475453A1 (en) |
| FR (1) | FR2413760A1 (en) |
| GB (1) | GB2015486B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10048913B4 (en) * | 2000-10-04 | 2005-03-24 | Kamax-Werke Rudolf Kellermann Gmbh & Co. Kg | Detachable connection element for a component, with a screw part and a retaining ring |
| RU2602148C2 (en) * | 2011-08-22 | 2016-11-10 | Линде Акциенгезелльшафт | Improved production of nitric acid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3752876A (en) * | 1971-08-26 | 1973-08-14 | Atomic Energy Commission | Removal of organic and inorganic iodine from a gaseous atmosphere |
| JPS565960B2 (en) * | 1972-12-27 | 1981-02-07 | ||
| FR2277415A1 (en) * | 1974-07-03 | 1976-01-30 | Commissariat Energie Atomique | PROCESS FOR THE EXTRACTION, TRAPPING AND STORAGE OF RADIOACTIVE IODINE CONTAINED IN IRRADIED NUCLEAR FUELS |
| DE2759185C2 (en) * | 1977-12-31 | 1983-11-10 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe | Method for cleaning the exhaust gases of a reprocessing plant for irradiated nuclear fuel and device for carrying out the method |
-
1978
- 1978-01-03 DE DE19782800120 patent/DE2800120C2/en not_active Expired
- 1978-11-28 BE BE191981A patent/BE872333A/en not_active IP Right Cessation
- 1978-11-28 ES ES475453A patent/ES475453A1/en not_active Expired
- 1978-12-18 FR FR7835571A patent/FR2413760A1/en active Granted
- 1978-12-28 GB GB7850143A patent/GB2015486B/en not_active Expired
-
1979
- 1979-01-02 BR BR7900005A patent/BR7900005A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2800120A1 (en) | 1979-07-05 |
| FR2413760A1 (en) | 1979-07-27 |
| BR7900005A (en) | 1979-08-07 |
| GB2015486A (en) | 1979-09-12 |
| BE872333A (en) | 1979-03-16 |
| FR2413760B1 (en) | 1982-10-22 |
| DE2800120C2 (en) | 1983-10-20 |
| GB2015486B (en) | 1982-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19971201 |