GB1458390A - - Google Patents
Info
- Publication number
- GB1458390A GB1458390A GB2188376A GB2188376A GB1458390A GB 1458390 A GB1458390 A GB 1458390A GB 2188376 A GB2188376 A GB 2188376A GB 2188376 A GB2188376 A GB 2188376A GB 1458390 A GB1458390 A GB 1458390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- housing
- filter
- adsorber
- charcoal
- 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
-
- 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
-
- 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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
- B01D53/70—Organic halogen compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Physics & Mathematics (AREA)
- Measurement Of Radiation (AREA)
Abstract
1458390 Radioactive decontamination PENNWALT CORP 20 Dec 1973 [21 Dec 1972] 21883/76 Divided out of 1458389 Heading G6R [Also in Division B1] A plant for removing radioactively contaminated gas from the housing of a nuclear reactor comprises one or two trains connectible to the housing, suction means for drawing gas from the housing, and means for sensing the radioactivity level in the housing and for automatically activating the suction means to withdraw gas from the housing through the or one of the trains when the radioactivity level in the housing exceeds a predetermined value, the or each train comprising in series a demister for removing water droplets from the gas, an electric heater for reducing the relative humidity of the gas (e.g. to below 70%), a first filter capable of removing solid particles in excess of 0À3 microns from the gas, a charcoal-filled adsorber for adsorbing radioactive material (e.g. I 2 and CH 3 I) from the gas, a second filter for removing charcoal fumes from the gas emerging from the adsorber, and a vent for discharging gas emerging from the second filter to the atmosphere. The or each train may comprise a third filter upstream of the first filter, means whereby the adsorber can be bypassed and pressure, flow-rate and temperature indicators. The adsorber may comprise spaced filter elements arranged in parallel, each element consisting of charcoal maintained between inner and outer perforated cages. The demister may comprise layers of steel mesh and glass fibre mesh; the first and second filters, sheets of glass-asbestos cloth.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US317434A US3925046A (en) | 1972-12-21 | 1972-12-21 | Radioactive gas standby treatment apparatus with high efficiency rechargeable charcoal filter |
| US05/563,768 US3964887A (en) | 1972-12-21 | 1975-03-31 | Radioactive gas standby treatment apparatus with high efficiency rechargeable charcoal filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1458390A true GB1458390A (en) | 1976-12-15 |
Family
ID=26980952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2188376A Expired GB1458390A (en) | 1972-12-21 | 1973-12-20 |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1025780A (en) |
| GB (1) | GB1458390A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110689988A (en) * | 2019-11-06 | 2020-01-14 | 江苏金环科技有限公司 | Radioactive gas purification device |
| CN111292864A (en) * | 2018-12-07 | 2020-06-16 | 中核四0四有限公司 | Radioactive gas purification device and method |
| CN112156550A (en) * | 2020-11-05 | 2021-01-01 | 佛山市韩华滤芯有限公司 | Filter element seat, filter assembly and filter of commercial filter |
-
1973
- 1973-12-20 GB GB2188376A patent/GB1458390A/en not_active Expired
-
1976
- 1976-02-27 CA CA246,718A patent/CA1025780A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292864A (en) * | 2018-12-07 | 2020-06-16 | 中核四0四有限公司 | Radioactive gas purification device and method |
| CN110689988A (en) * | 2019-11-06 | 2020-01-14 | 江苏金环科技有限公司 | Radioactive gas purification device |
| CN112156550A (en) * | 2020-11-05 | 2021-01-01 | 佛山市韩华滤芯有限公司 | Filter element seat, filter assembly and filter of commercial filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CA1025780A (en) | 1978-02-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19931219 |