BR112015025008A2 - método para remover carepas em instalação de geração de vapor - Google Patents

método para remover carepas em instalação de geração de vapor

Info

Publication number
BR112015025008A2
BR112015025008A2 BR112015025008A BR112015025008A BR112015025008A2 BR 112015025008 A2 BR112015025008 A2 BR 112015025008A2 BR 112015025008 A BR112015025008 A BR 112015025008A BR 112015025008 A BR112015025008 A BR 112015025008A BR 112015025008 A2 BR112015025008 A2 BR 112015025008A2
Authority
BR
Brazil
Prior art keywords
boiler
removing scale
scale
average molecular
value
Prior art date
Application number
BR112015025008A
Other languages
English (en)
Other versions
BR112015025008B1 (pt
Inventor
Sakai Mizuyuki
Shimura Yukimasa
Original Assignee
Kurita Water Ind Ltd
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 Kurita Water Ind Ltd filed Critical Kurita Water Ind Ltd
Publication of BR112015025008A2 publication Critical patent/BR112015025008A2/pt
Publication of BR112015025008B1 publication Critical patent/BR112015025008B1/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • 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
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/173—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
    • C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
    • 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
    • F22B37/52—Washing-out devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/14—Maintenance of water treatment installations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2307/00—Location of water treatment or water treatment device
    • 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
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)

Abstract

resumo patente de invenção: “método para remover carepas em instalação de geração de vapor”. a presente invenção refere-se a um método para remover carepas em uma instalação de geração de vapor, através do qual torna-se possível remover carepas depositadas no interior de um vaso de caldeira durante a operação de uma caldeira sem causar a corrosão da caldeira. um método para remover carepas em uma instalação de geração de vapor, através do qual torna-se possível remover carepas aderidas ao interior de um vaso de caldeira em uma instalação de geração de vapor ajustando-se o valor de ph de água de caldeira para 11,3 ou mais, e adicionando-se um ácido poliacrílico que tem um peso molecular médio ponderal que é 0,50 a 2,00 vezes um peso molecular médio ponderal de referência conforme calculado a partir da fórmula de cálculo (1) mostrada abaixo ou um sal do ácido poliacrílico à água de caldeira de acordo com o valor de ph da água de caldeira durante a operação de uma caldeira, removendo-se assim uma carepa depositada no inerior de um vaso de caldeira: peso molecular médio ponderal de referência = -8.462 ? ((valor de ph) – 11,3) + 61.538 ••• (1).
BR112015025008-4A 2013-04-02 2014-03-27 Método para remover carepas em instalação de geração de vapor BR112015025008B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013076803 2013-04-02
JP2013-076803 2013-04-02
PCT/JP2014/059039 WO2014162992A1 (ja) 2013-04-02 2014-03-27 蒸気発生設備のスケール除去方法

Publications (2)

Publication Number Publication Date
BR112015025008A2 true BR112015025008A2 (pt) 2017-07-18
BR112015025008B1 BR112015025008B1 (pt) 2021-09-08

Family

ID=51658290

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112015025008-4A BR112015025008B1 (pt) 2013-04-02 2014-03-27 Método para remover carepas em instalação de geração de vapor

Country Status (12)

Country Link
US (1) US9834462B2 (pt)
EP (1) EP2982655B1 (pt)
JP (1) JP5773091B2 (pt)
KR (1) KR101830234B1 (pt)
CN (1) CN105102380B (pt)
BR (1) BR112015025008B1 (pt)
ES (1) ES2766763T3 (pt)
MY (1) MY177681A (pt)
PL (1) PL2982655T3 (pt)
SG (1) SG11201508183WA (pt)
TW (1) TWI613396B (pt)
WO (1) WO2014162992A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5800044B2 (ja) * 2014-02-13 2015-10-28 栗田工業株式会社 蒸気発生設備のスケール除去方法及びスケール除去剤
JP6363037B2 (ja) * 2015-03-04 2018-07-25 三菱日立パワーシステムズ株式会社 貫流ボイラの火炉壁管の洗浄方法
JP6631147B2 (ja) * 2015-10-14 2020-01-15 栗田工業株式会社 ボイラ給水用水処理装置及びボイラの運転方法
US20190084856A1 (en) * 2017-09-20 2019-03-21 Solenis Technologies, L.P. Composition and method of scale control in regulated evaporative systems
CN112694951A (zh) * 2020-12-03 2021-04-23 嘉兴沃特泰科环保科技股份有限公司 一种非磷酸系中、低压锅炉清洗剂及其制备方法
CN112919652B (zh) * 2021-01-29 2022-10-04 青岛奥凯威节能环保科技有限公司 一种节能型锅炉系统纳米干预剂及其制备方法
CN115448472A (zh) * 2022-08-17 2022-12-09 中核武汉核电运行技术股份有限公司 一种核级聚丙烯酸高温高压最优在线添加工艺

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US3890228A (en) * 1973-04-13 1975-06-17 Chemed Corp Polyacrylate-polyphosphonic acid treatment in aqueous systems
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US5024783A (en) * 1989-10-10 1991-06-18 Fremont Industries, Inc. Boiler and boiler water treatment system
JP2923039B2 (ja) 1990-11-28 1999-07-26 三菱重工業株式会社 スケールの除去組成物
JPH0663590A (ja) 1992-06-29 1994-03-08 Japan Synthetic Rubber Co Ltd スケール除去剤及びそれを用いたスケール除去方法
US5403493A (en) * 1992-12-10 1995-04-04 Nalco Chemical Company Noncorrosive scale inhibitor additive in geothermal wells
IT1280182B1 (it) 1995-06-05 1998-01-05 Cirs Spa Procedimento di polimerizzazione di monomeri
US6297336B1 (en) 1998-07-02 2001-10-02 Nippon Shokubai Co., Ltd. Detergent builder, production process therefor, and poly(meth)acrylic acid (or salt) polymer and use thereof
JP3399874B2 (ja) * 1998-07-02 2003-04-21 株式会社日本触媒 洗剤ビルダー、その製造方法、及びポリ（メタ）アクリル酸（塩）系重合体ならびにその用途
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JP2000154996A (ja) 1998-08-19 2000-06-06 Miura Co Ltd ボイラのスケ―ル除去方法
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Also Published As

Publication number Publication date
US20160075580A1 (en) 2016-03-17
WO2014162992A1 (ja) 2014-10-09
TWI613396B (zh) 2018-02-01
ES2766763T3 (es) 2020-06-15
EP2982655A1 (en) 2016-02-10
JP5773091B2 (ja) 2015-09-02
SG11201508183WA (en) 2015-11-27
US9834462B2 (en) 2017-12-05
EP2982655A4 (en) 2016-10-26
TW201447184A (zh) 2014-12-16
BR112015025008B1 (pt) 2021-09-08
CN105102380B (zh) 2019-06-18
EP2982655B1 (en) 2019-11-13
KR20150136492A (ko) 2015-12-07
PL2982655T3 (pl) 2020-08-24
KR101830234B1 (ko) 2018-02-20
MY177681A (en) 2020-09-23
CN105102380A (zh) 2015-11-25
JPWO2014162992A1 (ja) 2017-02-16

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/03/2014, OBSERVADAS AS CONDICOES LEGAIS.