WO2008041400A1 - Procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer - Google Patents

Procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer Download PDF

Info

Publication number
WO2008041400A1
WO2008041400A1 PCT/JP2007/064009 JP2007064009W WO2008041400A1 WO 2008041400 A1 WO2008041400 A1 WO 2008041400A1 JP 2007064009 W JP2007064009 W JP 2007064009W WO 2008041400 A1 WO2008041400 A1 WO 2008041400A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling water
water system
seawater cooling
seawater
foaming
Prior art date
Application number
PCT/JP2007/064009
Other languages
English (en)
Japanese (ja)
Inventor
Kenji Hanno
Takashi Mizumori
Original Assignee
Katayama Chemical, Inc.
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 Katayama Chemical, Inc. filed Critical Katayama Chemical, Inc.
Priority to JP2008537422A priority Critical patent/JP5493095B2/ja
Publication of WO2008041400A1 publication Critical patent/WO2008041400A1/fr

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • B01D19/0427—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance compounds containing halogen-atoms
    • 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
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/02—Non-contaminated water, e.g. for industrial water supply
    • C02F2103/023—Water in cooling circuits
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/08—Seawater, e.g. for desalination
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/11—Turbidity
    • 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
    • C02F2303/08—Corrosion inhibition
    • 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
    • C02F2303/12—Prevention of foaming
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/04—Surfactants, used as part of a formulation or alone

Definitions

  • the present invention relates to a seawater cooling water system foaming suppression method.
  • the present invention can efficiently suppress foaming generated in a seawater cooling water system in which a chlorine generator is added to prevent the attachment of marine organisms.
  • a silicon-based antifoaming agent is generally used.
  • Patent Document 2 discloses that when a higher aliphatic tertiary amine or a salt thereof is added to a seawater cooling water system to control damage caused by marine organisms, A method for measuring transparency and controlling the addition of ammine based on the change is described, and it is stated that higher aliphatic tertiary amines are less likely to foam in seawater than other amines.
  • the above prior art does not describe that higher aliphatic tertiary amines are effective in preventing foaming due to reaction with microorganisms and organic substances in seawater. It was not known.
  • Patent Document 1 Japanese Patent No. 2713509
  • Patent Document 2 JP-A-10-120508
  • An object of the present invention is to provide a seawater cooling water system foaming suppression method that can efficiently suppress foaming that occurs in a seawater cooling water system or the like in which a chlorine generator is added to prevent adhesion of marine organisms.
  • the inventors of the present invention have conducted extensive research to solve the above problems, and as a result, added a specific higher aliphatic tertiary amine to a seawater cooling water system in which foaming has occurred by adding a chlorine generator. By adding, it was found that foaming can be efficiently suppressed, and the present invention has been completed.
  • a higher aliphatic tertiary ammine is added to a seawater cooling water system to which a chlorine generator is added to suppress foaming generated in the seawater cooling water system.
  • a method for suppressing foaming in a seawater cooling water system is provided.
  • a foaming suppression method for a seawater cooling water system that can efficiently suppress foaming that occurs in a seawater cooling water system or the like in which a chlorine generator is added to prevent adhesion of marine organisms.
  • the present invention can be applied to foaming generated in a cooling water system of a thermal power plant, a steel mill, an oil refinery, a petrochemical plant, and other chemical factories, and is extremely useful industrially.
  • FIG. 1 is a schematic diagram of a defoaming test circulation device used in Test Example 1.
  • FIG. 2 is a diagram showing the change over time of the bubble height in Test Example 1.
  • the seawater cooling water system foaming suppression method of the present invention is characterized in that a higher aliphatic tertiary amine is added to a seawater cooling water system to which a chlorine generator is added to suppress foaming generated in the seawater cooling water system.
  • “Seawater cooling water system to which a chlorine generator is added” means a seawater cooling water system to which a chlorine generator is added for the purpose of preventing adhesion of marine organisms, for example.
  • the present invention uses thermal water as cooling water and adds a chlorine generator for the purpose of preventing the attachment of marine organisms, thermal power plants, steelworks, oil refineries, petrochemical plants, other It can be suitably used in a seawater cooling water system such as a chemical factory.
  • examples of the higher aliphatic tertiary amine added to the seawater cooling water system include known amines having 12 to 24 carbon atoms.
  • These can use one kind or a mixture of two or more kinds (mixed alkylamine).
  • Examples of the mixed alkylamine include N, N-dimethyl beef tallow alkylamine and N, N-dimethyl-cured beef tallow alkylamine. These amines are produced from beef tallow by known means, saturated or unsaturated linear aliphatics having 12 to 18 carbon atoms. It means a mixture of amines in which hydrocarbon groups occupy the main component.
  • N, N-dimethyllaurylamine, N, N-dimethylberylamine, and N, N-dimethyl beef tallow anolenoleamine are used in terms of foaming suppression effect. Especially preferred.
  • the higher aliphatic tertiary amines are in the form of salts such as hydrochloric acid, hydrobromic acid, nitric acid, sulfuric acid, phosphoric acid, formic acid, acetic acid, oleic acid, naphthenic acid, adipic acid, lactic acid, citrate and saccharin. It may be used in a state.
  • acetate in the case of acetate, it can be obtained by reacting a higher aliphatic tertiary amine with an equimolar amount of acetic acid.
  • these compounds When these are added to the seawater cooling water system, these compounds may be appropriately diluted or dissolved in seawater or fresh water to obtain the desired concentration.
  • the concentration of the higher aliphatic tertiary amine added to the seawater cooling water system depends on the effective chlorine concentration of the chlorine generator present in the seawater cooling water system, the water temperature, etc. in terms of, 0. 005 ⁇ 5mgZ liter force s preferably, 0. 01 ⁇ : LmgZ liter is particularly preferred arbitrariness.
  • chlorine generators used for the purpose of preventing adhesion of marine organisms such as hypochlorous acid and salts thereof, Dichloroisocyanuric acid and its salts, salach liquid (Ca (ClO)), dioxide
  • Chlorine and chlorine gas obtained by electrolysis of seawater.
  • the effective concentration of the chlorine generator present in the seawater cooling water system is 0.01 to LOmgZ liter, preferably 0.05 to 5 mgZ, in terms of effective chlorine concentration.
  • foaming can be efficiently suppressed.
  • the seawater cooling water system foaming suppression method of the present invention introduces a compound that generates iron ions in water together with a higher aliphatic tertiary amine into the seawater cooling water system at the same time. Corrosion of metal materials of structures such as water pipes can be prevented.
  • Compounds that generate iron ions in water include compounds that are soluble in water and can form iron ions in water, such as ferrous sulfate, ferrous chloride, and ferrous sulfate ammonium. Is mentioned. In addition, iron ion generation as described in Japanese Patent Publication No. 54-40472. Even iron ions generated by raw equipment.
  • these compounds When these are added to the seawater cooling water system, these compounds may be appropriately diluted or dissolved in seawater or fresh water so as to have a desired concentration.
  • the iron ion concentration is preferably from 0.01 to 3 mg Z liters in view of the corrosion prevention effect of the metal material, and from 0.03 to Lmg / Lits.
  • a chlorine generator is intermittently added, and a higher aliphatic tertiary amine is added within 1 to 2 hours after the addition of the chlorine generator. Further, there is a method of repeatedly adding a chlorine generator within 10 to 180 minutes after the addition of the higher aliphatic tertiary amine. This method is preferable because an effective foaming suppression effect can be obtained, and corrosion of the seawater cooling water system piping hardly occurs. For example, a similar effect can be expected by adding a chlorine generator and a higher aliphatic tertiary amine simultaneously to a seawater cooling system in which the residual chlorine concentration at the time of discharge is controlled to be below the detection limit. preferable.
  • a 12% sodium hypochlorite aqueous solution was diluted with pure water to prepare a sodium hypochlorite aqueous solution having an effective chlorine concentration of 2000 mg Z liters.
  • Test Example 1 (Bubble height confirmation test)
  • the sodium hypochlorite aqueous solution of Preparation Example 1 was added to seawater so that the effective chlorine concentration of sodium hypochlorite was 1. OmgZ liter to obtain 2 liters of test seawater (pH 8.5).
  • a PVC cylindrical container 2 (inner diameter 14 cm, height), equipped with a pipe heater 3 (manufactured by Yoko Electric Manufacturing Co., Ltd., voltage 100 V, power consumption 500 W) and tripod sword 4 (outer diameter 12 cm, height 7 cm)
  • the test seawater 5 was poured into 30 cm) and heated with a pipe heater 3 so that the water temperature of the test seawater 5 was 0 ° C.
  • an aqueous solution of the amine salt of Preparation Example 2 was added to the test seawater with a micropipette so that the amine concentration was 0.1 mgZ liter, and lightly stirred.
  • the pump 6 (Iwakine earth magnet pump, model: MD-30R-N), which was adjusted in advance so that the circulation flow rate became 24 liters Z, was operated, and the bottom force of the container 2 also sucked up the test seawater 5,
  • the test sea water 5 is dropped from the position 8.5 cm above the reference liquid level (pipe outlet 8) via pipe 7 (inner diameter 13 mm, path length approx. 70 cm, the maximum point force of the pipe is 20 cm height between the reference liquid levels).
  • the test seawater 5 was circulated for 300 seconds (arrow in the figure).
  • the foam height (height from the reference liquid level to the top of the foam) is measured. did.
  • a foam height confirmation test was carried out in the same manner as described above except that the aqueous solution of the amine salt of Preparation Example 2 was added in place of the aqueous solution of the amine salt of Preparation Examples 3 to 7, respectively.
  • Figure 2 shows the results obtained.
  • the upper and lower sides of “ ⁇ ” from 0 to 300 seconds show Preparation Example 3 and Preparation Example 2, respectively, and the upper and lower sides of “ ⁇ ” from 300 to 600 seconds show Preparation Example 2 and Preparation Example 3, respectively.
  • Preparation Examples 2 to 4 show the most excellent foam suppression effect before and after circulation stoppage.
  • the amount of foaming during the circulation was higher than that of the blank, and it was found that more bubbles remained than the blank before and after the circulation was stopped.
  • Preparation Example 7 bubbles with relatively high viscosity were generated, and the bubbles adhered to the wall surface of the container.
  • Test Example 2 (Defoaming effect confirmation test in a refinery)
  • chlorination is performed by adding sodium hypochlorite so that the effective chlorine concentration is 0.1 mgZ liters near the intake.
  • the test was conducted in an aqueous system (water amount: 5000 tons, Z hours). Foaming was observed at the outlet before the test.
  • the agent of Preparation Example 2 was added near the outlet of the seawater cooling water system so that the concentration of the higher aliphatic tertiary amine was 0.1 mgZ liter, and the state of foaming at the outlet after 1 hour was observed. did.

Abstract

L'invention concerne un procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer, caractérisé par l'addition d'une amine tertiaire aliphatique supérieure au circuit de refroidissement à base d'eau de mer contenant un générateur de chlore ajouté.
PCT/JP2007/064009 2006-09-29 2007-07-13 Procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer WO2008041400A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008537422A JP5493095B2 (ja) 2006-09-29 2007-07-13 海水冷却水系の発泡抑制方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-268221 2006-09-29
JP2006268221 2006-09-29

Publications (1)

Publication Number Publication Date
WO2008041400A1 true WO2008041400A1 (fr) 2008-04-10

Family

ID=39268265

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/064009 WO2008041400A1 (fr) 2006-09-29 2007-07-13 Procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer

Country Status (2)

Country Link
JP (1) JP5493095B2 (fr)
WO (1) WO2008041400A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012124039A1 (fr) * 2011-03-14 2012-09-20 栗田工業株式会社 Désinfectant d'eau de ballast et dispositif de traitement d'eau de ballast
WO2015092850A1 (fr) * 2013-12-16 2015-06-25 中国電力株式会社 Dispositif de commande d'alimentation de chlore, procédé de commande d'alimentation de chlore, et système de protection de tube
WO2021149645A1 (fr) * 2020-01-21 2021-07-29 株式会社片山化学工業研究所 Procédé pour empêcher l'adhérence d'organismes marins, agent de prévention d'adhérence et kit de prévention d'adhérence
JP2021183336A (ja) * 2017-02-02 2021-12-02 株式会社片山化学工業研究所 海生生物の付着防止方法およびそれに用いる付着防止剤

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05169094A (ja) * 1991-04-08 1993-07-09 Ciba Geigy Ag 水性系におけるスケール、腐蝕及び微生物の防止方法
JPH09299711A (ja) * 1996-05-10 1997-11-25 Neos Co Ltd 消泡剤
JPH10120508A (ja) * 1996-10-21 1998-05-12 Katayama Chem Works Co Ltd 海生付着生物による障害防除方法
JP2003267812A (ja) * 2002-03-14 2003-09-25 Kurita Water Ind Ltd 防藻剤、防藻剤組成物および防藻方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2713509B2 (ja) * 1991-05-10 1998-02-16 株式会社片山化学工業研究所 第４級アンモニウム化合物の発泡抑制方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05169094A (ja) * 1991-04-08 1993-07-09 Ciba Geigy Ag 水性系におけるスケール、腐蝕及び微生物の防止方法
JPH09299711A (ja) * 1996-05-10 1997-11-25 Neos Co Ltd 消泡剤
JPH10120508A (ja) * 1996-10-21 1998-05-12 Katayama Chem Works Co Ltd 海生付着生物による障害防除方法
JP2003267812A (ja) * 2002-03-14 2003-09-25 Kurita Water Ind Ltd 防藻剤、防藻剤組成物および防藻方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012124039A1 (fr) * 2011-03-14 2012-09-20 栗田工業株式会社 Désinfectant d'eau de ballast et dispositif de traitement d'eau de ballast
WO2015092850A1 (fr) * 2013-12-16 2015-06-25 中国電力株式会社 Dispositif de commande d'alimentation de chlore, procédé de commande d'alimentation de chlore, et système de protection de tube
JP5833275B1 (ja) * 2013-12-16 2015-12-16 中国電力株式会社 塩素供給制御装置、塩素供給制御方法、及び管保護システム
JP2021183336A (ja) * 2017-02-02 2021-12-02 株式会社片山化学工業研究所 海生生物の付着防止方法およびそれに用いる付着防止剤
JP7266224B2 (ja) 2017-02-02 2023-04-28 株式会社片山化学工業研究所 海生生物の付着防止方法
WO2021149645A1 (fr) * 2020-01-21 2021-07-29 株式会社片山化学工業研究所 Procédé pour empêcher l'adhérence d'organismes marins, agent de prévention d'adhérence et kit de prévention d'adhérence

Also Published As

Publication number Publication date
JP5493095B2 (ja) 2014-05-14
JPWO2008041400A1 (ja) 2010-02-04

Similar Documents

Publication Publication Date Title
CN101688317B (zh) 生产卤代胺杀生物剂的方法和设备
JPH0699255B2 (ja) 新規な微生物致死性混合物およびそれを用いて水を処理する方法
CN104098150B (zh) 水溶液的蒸发处理方法
PT2205711E (pt) Composição de limpeza para superfícies metálicas
US9919941B2 (en) Multiple uses of amine salts for industrial water treatment
WO2008041400A1 (fr) Procédé d'inhibition du moussage dans un circuit de refroidissement à base d'eau de mer
KR20120065320A (ko) 안정적인 산화성 살생물제를 제조하는 방법
US3792084A (en) Polyquaternary ammonium methylene phosphonates and uses thereof
CN102491532A (zh) 敞开式循环冷却水生化处理方法
CN103936603A (zh) 一种烷基多胺季铵盐及其制备方法
BR112020019858A2 (pt) Composições multifuncionais para recuperação melhorada de petróleo e gás e outras aplicações da indústria de petróleo
US4188359A (en) Thioether containing quartenary ammonium derivatives of 1,4-thiazines
CA2674008A1 (fr) Appareil pour produire un biocide oxydant stable
US4323459A (en) Process of inhibiting scale formation in aqueous systems using quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
US4217329A (en) Sulfone containing quaternary ammonium derivatives of 1,4-thiazines
US4336156A (en) Quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
JP2021183336A (ja) 海生生物の付着防止方法およびそれに用いる付着防止剤
US4146711A (en) Sulfone containing quaternary ammonium derivatives of 1,4-thiazines
US4200634A (en) Sulfone containing quaternary ammonium derivatives of 1,4-thiazines as microbiocides
US4200633A (en) Thioether containing quaternary ammonium derivatives of 1,4-thiazines as microbiocides
US4264768A (en) Di-quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
US4264767A (en) α-1,4-Thiazine alkanephosphonic acids
US4342584A (en) Microbiocidal process using di-quaternary ammonium salts of α-1,4-thiazine alkanephosphonic acids
JPH10277560A (ja) 海水冷却水系のスライム付着防止方法
US4371497A (en) Inhibition of corrosion with thiazine quaternary ammonium salts of polyepihalophydrin

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07790789

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2008537422

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07790789

Country of ref document: EP

Kind code of ref document: A1