GB2070454A - Method for treating a nuclear process off-gas stream - Google Patents

Method for treating a nuclear process off-gas stream

Info

Publication number
GB2070454A
GB2070454A GB8110204A GB8110204A GB2070454A GB 2070454 A GB2070454 A GB 2070454A GB 8110204 A GB8110204 A GB 8110204A GB 8110204 A GB8110204 A GB 8110204A GB 2070454 A GB2070454 A GB 2070454A
Authority
GB
United Kingdom
Prior art keywords
molecular sieve
silver
stream
krypton
gas
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.)
Granted
Application number
GB8110204A
Other versions
GB2070454B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SCIENCE APPLIC IN
Original Assignee
SCIENCE APPLIC IN
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SCIENCE APPLIC IN filed Critical SCIENCE APPLIC IN
Publication of GB2070454A publication Critical patent/GB2070454A/en
Application granted granted Critical
Publication of GB2070454B publication Critical patent/GB2070454B/en
Expired legal-status Critical Current

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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Method for selectively removing and recovering the noble gas and other gaseous components typically emitted during nuclear process operations. The method is adaptable and useful for treating dissolver off-gas effluents released during reprocessing of spent nuclear fuels whereby to permit radioactive contaminant recovery prior to releasing the remaining off-gases to the atmosphere. Briefly, the method sequentially comprises treating the off-gas stream to preliminarily remove NO<ux>u, hydrogen and carbon-containing organic compounds, and semivolatile fission product metal oxide components therefrom (11 and 16); adsorbing iodine components on silver-exchanged mordenite (17); removing water vapor carried by said stream by means of a molecular sieve (31); selectively removing the carbon dioxide components of said off gas stream by means of a molecular sieve (51); selectively removing xenon in gas phase by passing said stream through a molecular sieve (71) comprising silver-exchanged mordenite; selectively separating krypton from oxygen by means of a molecular sieve (91) comprising silver-exchanged mordenite; selectively separating krypton from the bulk nitrogen stream using a molecular sieve (111) comprising silver-exchanged mordenite cooled to about -140` to -160`C; concentrating the desorbed krypton upon a molecular sieve (131) comprising silver-exchange mordenite cooled to about -140` to -160`C; and further cryogenically concentrating, and then recovering for storage, the desorbed krypton (137).
GB8110204A 1979-08-06 1980-08-06 Method for treating a nuclear process off-gas stream Expired GB2070454B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6397079A 1979-08-06 1979-08-06

Publications (2)

Publication Number Publication Date
GB2070454A true GB2070454A (en) 1981-09-09
GB2070454B GB2070454B (en) 1983-12-07

Family

ID=22052687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8110204A Expired GB2070454B (en) 1979-08-06 1980-08-06 Method for treating a nuclear process off-gas stream

Country Status (4)

Country Link
EP (1) EP0032949A4 (en)
JP (1) JPS56500976A (en)
GB (1) GB2070454B (en)
WO (1) WO1981000413A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3214825C2 (en) * 1982-04-21 1986-09-11 Kernforschungsanlage Jülich GmbH, 5170 Jülich Method for separating krypton from radioactive waste gas and device for carrying out the method
DE3808742A1 (en) * 1988-03-16 1989-09-28 Kernforschungsz Karlsruhe METHOD FOR REMOVING IODINE AND IODINE COMPOUNDS FROM GASES AND STEAMS WITH SILVER-BASED ZEOLITE X
GB9523517D0 (en) * 1995-11-17 1996-01-17 British Nuclear Fuels Plc Separation of gases
JP4652860B2 (en) * 2004-04-27 2011-03-16 大陽日酸株式会社 How to recover krypton or xenon
JP2011057491A (en) * 2009-09-09 2011-03-24 Panasonic Corp Method for recovering gas
EP2476645B1 (en) 2009-09-09 2018-10-10 Panasonic Corporation Xenon adsorption device
DE102014010020A1 (en) * 2014-07-08 2016-01-14 Clariant International Ltd. Adsorption material for the adsorption of noble gases, use thereof and methods for the adsorption of noble gases
ES2972484T3 (en) 2018-05-08 2024-06-13 Curium Us Llc Systems and methods for the production of xenon-133
CN111681799A (en) * 2020-04-30 2020-09-18 中国辐射防护研究院 Drying and volume reduction treatment device and method for radioactive waste resin Fenton oxidation waste liquid
EP4049743A1 (en) * 2021-02-05 2022-08-31 Sck Cen Removing a radioactive noble gas from a gas volume
CN115676786B (en) * 2022-10-27 2024-04-19 江苏中科敬远节能科技有限公司 Helium-neon separation process based on silver molecular sieve adsorption at normal temperature

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279884A (en) * 1963-10-31 1966-10-18 Basf Ag Selective removal of oxides of nitrogen from gas mixtures containing oxygen
US3476508A (en) * 1965-10-27 1969-11-04 Exxon Research Engineering Co Catalytic purification treatment of exhaust gas
US3806583A (en) * 1971-03-15 1974-04-23 Babcock & Wilcox Co Recovery of radioactive noble gases from gaseous effluents
US3767764A (en) * 1971-12-09 1973-10-23 Grace W R & Co System for removing nitrogen oxide from automotive exhaust
US3944646A (en) * 1972-05-11 1976-03-16 Union Carbide Corporation Radioactive krypton gas separation
US4045191A (en) * 1972-05-11 1977-08-30 Union Carbide Corporation Radioactive krypton gas separation
US4012490A (en) * 1972-07-25 1977-03-15 Airco, Inc. Removing radioactive noble gases from nuclear process off-gases
GB1509581A (en) * 1974-07-31 1978-05-04 Commissariat Energie Atomique Method of eliminating radioactivity from air containing radioactive rare gases
US4087375A (en) * 1975-05-07 1978-05-02 Shin Tohoku Chemical Industry Co., Ltd. Method for treating radioactive waste water
US4093429A (en) * 1975-12-19 1978-06-06 General Electric Company Gas separation system
DE2611833C2 (en) * 1976-03-19 1985-12-05 Linde Ag, 6200 Wiesbaden Process for the separation of radioactive krypton and xenon from exhaust gases from nuclear fuel reprocessing plants or nuclear reactors
US4088737A (en) * 1976-11-02 1978-05-09 The United States Of America As Represented By The United States Department Of Energy Dry method for recycling iodine-loaded silver zeolite
US4201690A (en) * 1978-04-03 1980-05-06 United Kingdom Atomic Energy Authority Processing of irradiated nuclear fuel
US4194891A (en) * 1978-12-27 1980-03-25 Union Carbide Corporation Multiple bed rapid pressure swing adsorption for oxygen

Also Published As

Publication number Publication date
GB2070454B (en) 1983-12-07
JPS56500976A (en) 1981-07-16
EP0032949A1 (en) 1981-08-05
EP0032949A4 (en) 1982-01-08
WO1981000413A1 (en) 1981-02-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee