WO2001011935A3 - Method of sludge removal in pressurized water nuclear reactors - Google Patents

Method of sludge removal in pressurized water nuclear reactors Download PDF

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Publication number
WO2001011935A3
WO2001011935A3 PCT/US2000/021391 US0021391W WO0111935A3 WO 2001011935 A3 WO2001011935 A3 WO 2001011935A3 US 0021391 W US0021391 W US 0021391W WO 0111935 A3 WO0111935 A3 WO 0111935A3
Authority
WO
WIPO (PCT)
Prior art keywords
pressurized water
water nuclear
nuclear reactors
steam generator
sludge removal
Prior art date
Application number
PCT/US2000/021391
Other languages
French (fr)
Other versions
WO2001011935A2 (en
Inventor
Paul R Burgmayer
Original Assignee
Betzdearborn Inc
Paul R Burgmayer
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 Betzdearborn Inc, Paul R Burgmayer filed Critical Betzdearborn Inc
Priority to AU70545/00A priority Critical patent/AU7054500A/en
Priority to JP2001516304A priority patent/JP2003529048A/en
Publication of WO2001011935A2 publication Critical patent/WO2001011935A2/en
Publication of WO2001011935A3 publication Critical patent/WO2001011935A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3784—(Co)polymerised monomers containing phosphorus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/483—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers specially adapted for nuclear steam generators
    • 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
    • G21F9/001—Decontamination of contaminated objects, apparatus, clothes, food; Preventing contamination thereof
    • G21F9/002—Decontamination of the surface of objects with chemical or electrochemical processes
    • G21F9/004—Decontamination of the surface of objects with chemical or electrochemical processes of metallic surfaces
    • C11D2111/20—

Abstract

A novel method of removing metal-oxide sludge deposits from the secondary side of a pressurized water nuclear steam generator as the nuclear steam generator is brought off-line, at a temperature of about 100 °C to 177 °C (212 °F to 350 °F) is disclosed. The method comprises injecting into the water of the secondary side of a pressurized water nuclear steam generator, as it is brought off-line, a polymeric dispersant represented by structural formula (I): wherein R1 is a lower alkyl of from 1 to about 6 carbon atoms, and x = OH or OM wherein M is a cation.
PCT/US2000/021391 1999-08-12 2000-08-04 Method of sludge removal in pressurized water nuclear reactors WO2001011935A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU70545/00A AU7054500A (en) 1999-08-12 2000-08-04 Method of sludge removal in pressurized water nuclear reactors
JP2001516304A JP2003529048A (en) 1999-08-12 2000-08-04 Sludge removal method in pressurized water reactor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US37317499A 1999-08-12 1999-08-12
US09/373,174 1999-08-12

Publications (2)

Publication Number Publication Date
WO2001011935A2 WO2001011935A2 (en) 2001-02-22
WO2001011935A3 true WO2001011935A3 (en) 2008-02-21

Family

ID=23471300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/021391 WO2001011935A2 (en) 1999-08-12 2000-08-04 Method of sludge removal in pressurized water nuclear reactors

Country Status (3)

Country Link
JP (1) JP2003529048A (en)
AU (1) AU7054500A (en)
WO (1) WO2001011935A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100300218A1 (en) * 2009-06-02 2010-12-02 Electric Power Research Institute, Inc. Dispersant application for clean-up of recirculation paths of a power producing facility during start-up
WO2013145691A1 (en) * 2012-03-26 2013-10-03 日本原子力発電株式会社 Radiation source reducing system and method for atomic power plant

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446028A (en) * 1982-12-20 1984-05-01 Betz Laboratories, Inc. Isopropenyl phosphonic acid copolymers used to inhibit scale formation
US4446046A (en) * 1981-06-17 1984-05-01 Betz Laboratories, Inc. Poly (alkenyl) phosphonic acid and methods of use thereof
US5158684A (en) * 1991-03-12 1992-10-27 Betz Laboratories, Inc. Transport and deposit inhibition of copper in boilers
US5294686A (en) * 1993-03-29 1994-03-15 Rohm And Haas Company Process for efficient utilization of chain transfer agent
US5512183A (en) * 1994-12-07 1996-04-30 Betz Laboratories, Inc. Alkyl-allylphosphonate copolymer used for boiler water treatment
US5864596A (en) * 1996-07-10 1999-01-26 Commonwealth Edison Company Polymer dispersants and methods of use in a nuclear steam generator
US5898002A (en) * 1997-08-22 1999-04-27 Betzdearborn Inc. Method for removing ferric-ferrous oxides from a liquid

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446046A (en) * 1981-06-17 1984-05-01 Betz Laboratories, Inc. Poly (alkenyl) phosphonic acid and methods of use thereof
US4446028A (en) * 1982-12-20 1984-05-01 Betz Laboratories, Inc. Isopropenyl phosphonic acid copolymers used to inhibit scale formation
US5158684A (en) * 1991-03-12 1992-10-27 Betz Laboratories, Inc. Transport and deposit inhibition of copper in boilers
US5294686A (en) * 1993-03-29 1994-03-15 Rohm And Haas Company Process for efficient utilization of chain transfer agent
US5512183A (en) * 1994-12-07 1996-04-30 Betz Laboratories, Inc. Alkyl-allylphosphonate copolymer used for boiler water treatment
US5594084A (en) * 1994-12-07 1997-01-14 Betzdearborn Inc. Alkyl-allylphosphonate copolymer used for boiler water treatment
US5864596A (en) * 1996-07-10 1999-01-26 Commonwealth Edison Company Polymer dispersants and methods of use in a nuclear steam generator
US5898002A (en) * 1997-08-22 1999-04-27 Betzdearborn Inc. Method for removing ferric-ferrous oxides from a liquid

Also Published As

Publication number Publication date
AU7054500A (en) 2001-03-13
WO2001011935A2 (en) 2001-02-22
JP2003529048A (en) 2003-09-30

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