WO2012029714A1 - Catalyseur de recombinaison des gaz radioactifs produits par un réacteur nucléaire et dispositif de recombinaison - Google Patents

Catalyseur de recombinaison des gaz radioactifs produits par un réacteur nucléaire et dispositif de recombinaison Download PDF

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Publication number
WO2012029714A1
WO2012029714A1 PCT/JP2011/069456 JP2011069456W WO2012029714A1 WO 2012029714 A1 WO2012029714 A1 WO 2012029714A1 JP 2011069456 W JP2011069456 W JP 2011069456W WO 2012029714 A1 WO2012029714 A1 WO 2012029714A1
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WIPO (PCT)
Prior art keywords
catalyst
exhaust gas
weight
nuclear
recombination
Prior art date
Application number
PCT/JP2011/069456
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English (en)
Japanese (ja)
Inventor
菅野　周一
敏弘 大塚
吉井　泰雄
元浩 会沢
西　高志
飯塚　秀宏
塩谷　靖
賢中 金
Original Assignee
日立Ｇｅニュークリア・エナジー株式会社
ズードケミー触媒株式会社
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.)
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Application filed by 日立Ｇｅニュークリア・エナジー株式会社, ズードケミー触媒株式会社 filed Critical 日立Ｇｅニュークリア・エナジー株式会社
Priority to JP2012531864A priority Critical patent/JP5607742B2/ja
Publication of WO2012029714A1 publication Critical patent/WO2012029714A1/fr

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    • 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
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/02—Boron or aluminium; Oxides or hydroxides thereof
    • B01J21/04—Alumina
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/44—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/51—Spheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0203—Impregnation the impregnation liquid containing organic compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0201—Impregnation
    • B01J37/0207—Pretreatment of the support

Definitions

  • ⁇ -Al 2 O 3 and ⁇ -Al 2 O 3 account for 95% by weight or more of Al 2 O 3 weight, and the balance is other crystal structures such as ⁇ -Al 2 O 3 and inevitable impurities. Consists of. It is desirable that ⁇ -Al 2 O 3 and ⁇ -Al 2 O 3 are finely and closely integrated, and the most preferred support according to the present invention is substantially free of binder components other than Al 2 O 3 , Therefore, adverse effects due to elution of the binder component can be prevented.
  • ⁇ -Al 2 O 3 and ⁇ -Al 2 O 3 may be mixed as fine powder, molded into a columnar shape or a pellet shape, and fired. Further, the above mixture may be fired and pulverized to make this powder into a slurry, which may be applied to a honeycomb or plate-like substrate.
  • a nuclear exhaust gas recombiner, gamma-Al mixing ratio of 2 O 3 and alpha-Al 2 O 3 is in alpha-Al 2 O 3 75 to 99 wt%, gamma-Al 2 O 3
  • % by weight is based on the weight of Al 2 O 3 .
  • the radioactive gaseous waste (exhaust gas) 1 from the reactor 8 mainly composed of water vapor passes through a turbine 9 and a preheater 7 to form a low molecular siloxane compound contained in the exhaust gas.
  • the recombination catalyst 2 flows into the recombination catalyst layer of the recombiner 3 and poisons the recombination catalyst 2, the catalyst performance deteriorates, and H 2 remains at a high concentration in the exhaust gas discharged from the recombiner.
  • This exhaust gas is discharged to the outside through the condenser 10 and the dehumidifying cooler 11, but it is necessary to prevent the H 2 concentration in the exhaust gas from increasing in order to operate the nuclear power plant safely.
  • the amount of the ⁇ -Al 2 O 3 ⁇ - Al 2 O 3 is 87 to 96 wt%, gamma-Al
  • the amount of 2 O 3 is 4 to 13% by weight.
  • This catalyst has a specific surface area of 4.8 m 2 / g and a CO adsorption amount of 1.7 ⁇ mol / g as measured in the same manner as in Example 1.
  • FIG. 3 shows the change with time of the outlet H 2 concentration of the reaction tube.
  • the reaction time and the outlet concentration of H 2 in the figure relative to the reaction time and the outlet concentration of H 2 at D5 is turned on. It was found that the catalyst 2 had an outlet H 2 concentration of 0.05 vol% or less during the test time of 120 hours and exhibited high durability against the low molecular siloxane compound.
  • Example 5 In this example, the process gas at the time of reactor startup was adjusted and a startup simulation test was performed.
  • the catalyst Pd / ( ⁇ + ⁇ ) -Al 2 O 3 supporting Pd was used.
  • catalyst 4 in which ⁇ -Al 2 O 3 and ⁇ -Al 2 O 3 were chemically mixed and catalyst 5 in which physical mixing was performed were used.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Catalysts (AREA)

Abstract

Cette invention concerne l'élimination du phénomène de réduction des performances d'un catalyseur de recombinaison résultant de l'influence de siloxanes à faible poids moléculaire, lors du traitement des gaz radioactifs produits par un réacteur nucléaire. Le catalyseur de recombinaison de gaz radioactifs produits par un réacteur nucléaire se caractérise en ce que le support contient une phase composite constituée de γ-Al2O3 et d'α-Al2O3 délicatement et intimement mélangée au catalyseur, ledit catalyseur étant utilisé pour recombiner l'hydrogène et l'oxygène présents dans la vapeur d'eau contenue dans les gaz radioactifs émis par un réacteur nucléaire d'une centrale nucléaire.
PCT/JP2011/069456 2010-08-31 2011-08-29 Catalyseur de recombinaison des gaz radioactifs produits par un réacteur nucléaire et dispositif de recombinaison WO2012029714A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012531864A JP5607742B2 (ja) 2010-08-31 2011-08-29 原子力排ガス再結合触媒及び再結合器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/JP2010/005352 WO2012029090A1 (fr) 2010-08-31 2010-08-31 Catalyseur de recombinaison des gaz radioactifs et recombineur associé
JPPCT/JP2010/005352 2010-08-31

Publications (1)

Publication Number Publication Date
WO2012029714A1 true WO2012029714A1 (fr) 2012-03-08

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PCT/JP2010/005352 WO2012029090A1 (fr) 2010-08-31 2010-08-31 Catalyseur de recombinaison des gaz radioactifs et recombineur associé
PCT/JP2011/069456 WO2012029714A1 (fr) 2010-08-31 2011-08-29 Catalyseur de recombinaison des gaz radioactifs produits par un réacteur nucléaire et dispositif de recombinaison

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175085A1 (fr) * 2012-05-24 2013-11-28 IFP Energies Nouvelles Procede de preparation d'un catalyseur a base d'un metal du groupe viii et contenant du silicium et procede d'hydrogenation selective mettant en oeuvre ledit catalyseur
JP2015142896A (ja) * 2013-12-24 2015-08-06 株式会社日本触媒 ガス燃焼触媒用組成物、触媒層を含む支持体の製造方法、及びガス燃焼触媒

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283301A (ja) * 1985-10-08 1987-04-16 Hitachi Ltd 酸素水素再結合器
JPS62241552A (ja) * 1986-04-11 1987-10-22 Cataler Kogyo Kk 排ガス浄化用一体型触媒担体
JPH0538432A (ja) * 1991-08-07 1993-02-19 Toshiba Corp 排ガス再結合器用触媒
JPH05507553A (ja) * 1990-05-11 1993-10-28 シーメンス アクチエンゲゼルシヤフト 水素と酸素の再結合装置並びにこの装置の使用方法
JP2001056391A (ja) * 1999-06-09 2001-02-27 Toshiba Corp 水素除去装置
JP2009203546A (ja) * 2008-01-29 2009-09-10 Nagaoka Univ Of Technology 堆積装置および堆積方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6283301A (ja) * 1985-10-08 1987-04-16 Hitachi Ltd 酸素水素再結合器
JPS62241552A (ja) * 1986-04-11 1987-10-22 Cataler Kogyo Kk 排ガス浄化用一体型触媒担体
JPH05507553A (ja) * 1990-05-11 1993-10-28 シーメンス アクチエンゲゼルシヤフト 水素と酸素の再結合装置並びにこの装置の使用方法
JPH0538432A (ja) * 1991-08-07 1993-02-19 Toshiba Corp 排ガス再結合器用触媒
JP2001056391A (ja) * 1999-06-09 2001-02-27 Toshiba Corp 水素除去装置
JP2009203546A (ja) * 2008-01-29 2009-09-10 Nagaoka Univ Of Technology 堆積装置および堆積方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175085A1 (fr) * 2012-05-24 2013-11-28 IFP Energies Nouvelles Procede de preparation d'un catalyseur a base d'un metal du groupe viii et contenant du silicium et procede d'hydrogenation selective mettant en oeuvre ledit catalyseur
FR2990882A1 (fr) * 2012-05-24 2013-11-29 IFP Energies Nouvelles Procede de preparation d'un catalyseur a base d'un metal du groupe viii et contenant du silicium et procede d'hydrogenation selective mettant en oeuvre ledit catalyseur
CN104302399A (zh) * 2012-05-24 2015-01-21 Ifp新能源公司 制备基于viii族金属且包含硅的催化剂的方法,和使用所述催化剂的选择性氢化方法
US9695095B2 (en) 2012-05-24 2017-07-04 IFP Energies Nouvelles Process for preparing a catalyst based on a group VIII metal and containing silicon, and a process of selective hydrogenation implementing said catalyst
JP2015142896A (ja) * 2013-12-24 2015-08-06 株式会社日本触媒 ガス燃焼触媒用組成物、触媒層を含む支持体の製造方法、及びガス燃焼触媒

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