EP0522161B1 - Korrosionsschutzmittel und -verfahren für ein dampf- und kondensatorsystem - Google Patents

Korrosionsschutzmittel und -verfahren für ein dampf- und kondensatorsystem Download PDF

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Publication number
EP0522161B1
EP0522161B1 EP91906425A EP91906425A EP0522161B1 EP 0522161 B1 EP0522161 B1 EP 0522161B1 EP 91906425 A EP91906425 A EP 91906425A EP 91906425 A EP91906425 A EP 91906425A EP 0522161 B1 EP0522161 B1 EP 0522161B1
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EP
European Patent Office
Prior art keywords
steam
vitamin
corrosion
condenser system
inhibitor
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.)
Expired - Lifetime
Application number
EP91906425A
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English (en)
French (fr)
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EP0522161A4 (de
EP0522161A1 (de
Inventor
Shunichi C/O Aquas Corporation Akama
Takanobu C/O Aquas Corporation Sasa
Tokuko C/O Aquas Corporation Yanagisawa
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.)
Aquas Corp
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Aquas Corp
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Publication date
Application filed by Aquas Corp filed Critical Aquas Corp
Publication of EP0522161A4 publication Critical patent/EP0522161A4/de
Publication of EP0522161A1 publication Critical patent/EP0522161A1/de
Application granted granted Critical
Publication of EP0522161B1 publication Critical patent/EP0522161B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K21/00—Steam engine plants not otherwise provided for
    • F01K21/06—Treating live steam, other than thermodynamically, e.g. for fighting deposits in engine
    • 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
    • C23F11/02—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in air or gases by adding vapour phase inhibitors
    • 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
    • C23F11/12—Oxygen-containing 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
    • 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
    • C23F11/12—Oxygen-containing compounds
    • C23F11/122—Alcohols; Aldehydes; Ketones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D11/00—Feed-water supply not provided for in other main groups
    • F22D11/006—Arrangements of feedwater cleaning with a boiler

Definitions

  • the present invention relates to a method of preventing the occurrence of corrosion in pipes and devices of steam and condenser systems and the use of vitamin A or a combination of vitamin A and vitamin E and/or their derivatives as anticorrosive agents.
  • JP-A-49 058 084 discloses a method for controlling redox reaction with a system obtained by combining one or more compound(s) selected from the group (A) and one or more compound(s) selected from the group (B).
  • Examples for the compounds of group (A) are coenzyme Q, vitamin K2 and plastoquinones; examples for the compounds of group (B) are ubichromenol, ubichromanol and tocopherol (vitamin E). Vitamin A is not mentioned in this document.
  • EP 0 039 130 discloses the use of dioxo aromatic compounds as oxygen scavengers in an aqueous medium.
  • dioxo aromatic compounds are hydroquinone, benzoquinone, naphthoquinone, catechol, and dihydroxybenzaldehyde.
  • Vitamin A is not mentioned in EP 0 039 130.
  • the present invention is thus to provide an anticorrosive method of steam and condenser systems, capable of providing sufficient ensuring of hygienic safety.
  • the present inventors have carried out investigations so as to achieve the above objectives, and have found that vitamin A or a combination of vitamin A and vitamin E and/or their derivatives among vitamins as the organic substances inevitable for maintaining normal growth and nutritious state of animals, have anticorrosive effects on steam and condenser systems. That is, the present invention provides the use of vitamin and/or its derivatives or a combination of vitamin A and vitamin E and/or their derivatives as anticorrosive agents for steam and condenser systems, and a method for preventing corrosion in steam and condenser systems, comprising the addition of Vitamin A and/or its derivatives or the addition of a combination of vitamin A and vitamin E and/or their derivatives as anticorrosive agents.
  • the vitamin A to be used in the present invention is ;
  • the vitamin E to be used in the present invention is represented by so-called tocopherol and its analogs, including for example, ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocopherol, ⁇ -tocotorienol, ⁇ -tocotorienol, ⁇ -tocotorienol, etc.
  • oils containing such compounds for example, germ oil and soybean oil, may be also included.
  • vitamins A and E are those incorporated as nutritious components on daily basis into humans, and are substances in a wide range of general use as supplementary products for nutritious foods or additives for milk products, flour, baby foods, condensed and dried soup stocks, curry roux, confectioneries, etc. Vitamins A and E as such are thoroughly investigated of their safety including the effects on human body, so they can appropriately be used in the case that safety of steam is important as described above.
  • the anticorrosive mechanism is not clear in accordance with the present invention, but such anticorrosive property of vitamin A cannot be expected from the properties and utilities thereof, and the property is very surprising.
  • Vitamin A is used singly or in combination with vitamin E, or may be used as a pharmaceutical agent in which these vitamins are blended together.
  • the method of adding vitamin A or the mixture of vitamin A and vitamin E, and the concentration thereof to be added should be appropriately determined, depending on equipment condition and the condition as to how to use, and it is generally preferable to directly inject and add them to the pipes of steam or condenser system. The longer the length of pipes of steam or condenser systems gets, the higher the concentration to be added should be.
  • Vitamins A and E are also sparingly soluble in water, and in case that preliminary dilution of them is advantageous at their addition, they may be dispersed in emulsifiers or diluted with solvents, before adding and using them.
  • Fig.1 is a figure representing the configuration of a testing apparatus to carry out the anticorrosive method of steam and condenser systems in accordance with the present invention.
  • Chemical agent A Vitamin A (Riken A palmitate 1000) 1 % Benzyl alcohol 99 %
  • Chemical agent B Vitamin A (Riken A palmitate 1000) 4.1 % Benzyl alcohol 95.9 %
  • Chemical agent D Benzyl alcohol 100 %
  • Chemical agent E Octadecyl amine 1.4 % Polyoxyethylene stearylether 0.4 Water 98.2 %
  • Chemical agent F 2-Amino-3-methyl propanol 17.5 % Water 82.5 % Table 1 Test No. Chemical agent Amount added (»g/litre) Corrosion degree(mdd) Note 1 blank 125 2 A 600 22 Example 3 B 600 34 Example 5 D 600 124 Comparative Example 6 E 600 41 Comparative Example 7 F 600 27 Comparative Example
  • an anticorrosive agent containing as the effective component vitamin A or a combination of vitamin A and vitamin E and/or their derivatives is injected into steam pipes or into boilers, the application of the anticorrosive method of steam and condenser systems in accordance with the present invention allows the use of the steam for food processing and the like, with no concerns about the occurrence of steam contamination and the corrosion of the pipes due to chemical agents and the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Water Supply & Treatment (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)

Claims (5)

  1. Verwendung von Vitamin A und/oder seiner Derivate oder einer Kombination von Vitamin A und Vitamin E und/oder ihrer Derivate als Antikorrosionsmittel.
  2. Verwendung nach Anspruch 1, worin die Antikorrosionsmittel zusätzlich einen Emulgator oder ein Lösungsmittel umfassen.
  3. Verwendung nach Anspruch 2, worin das Lösungmittel ein Benzylalkohol ist.
  4. Korrosionsschutzverfahren in Dampf- und Kondensatorsystemen, umfassend die Zugabe von Vitamin A und/oder seiner Derivate als Antikorrosionsmittel.
  5. Korrosionsschutzverfahren in Dampf- und Kondensatorsystemen, umfassend die Zugabe einer Kombination von Vitamin A und Vitamin E und/oder ihrer Derivate als Antikorrosionsmittel.
EP91906425A 1990-03-30 1991-03-28 Korrosionsschutzmittel und -verfahren für ein dampf- und kondensatorsystem Expired - Lifetime EP0522161B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP81011/90 1990-03-30
JP8101190 1990-03-30
PCT/JP1991/000410 WO1991015612A1 (fr) 1990-03-30 1991-03-28 Inhibiteur de corrosion pour la vapeur et les systemes condenseurs, et procede associe d'inhibition de la corrosion
AU78489/91A AU643796B2 (en) 1990-03-30 1991-06-18 Anticorrosive agent of steam and condenser systems and anticorrosive method of steam and condenser systems

Publications (3)

Publication Number Publication Date
EP0522161A4 EP0522161A4 (de) 1992-10-23
EP0522161A1 EP0522161A1 (de) 1993-01-13
EP0522161B1 true EP0522161B1 (de) 1995-02-15

Family

ID=25638933

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91906425A Expired - Lifetime EP0522161B1 (de) 1990-03-30 1991-03-28 Korrosionsschutzmittel und -verfahren für ein dampf- und kondensatorsystem

Country Status (6)

Country Link
EP (1) EP0522161B1 (de)
AT (1) ATE118559T1 (de)
AU (1) AU643796B2 (de)
CA (1) CA2069952A1 (de)
DE (1) DE69107449T2 (de)
WO (1) WO1991015612A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10137130C1 (de) * 2001-07-30 2003-03-13 Excor Korrosionsforschung Gmbh Dampfphasen-Korrosionsinhibitoren, Verfahren zu deren Zubereitung und Verwendung
US7311877B2 (en) * 2003-07-31 2007-12-25 General Electric Company Inhibition of corrosion in fluid systems
US7407623B2 (en) * 2003-12-09 2008-08-05 Ge Betz, Inc. Steam condensate corrosion inhibitor compositions and methods
US7527638B2 (en) 2003-12-16 2009-05-05 Depuy Spine, Inc. Methods and devices for minimally invasive spinal fixation element placement
CN115161644B (zh) * 2021-12-17 2023-05-30 青岛华节鼎孚节能科技有限公司 用于汽液两相运送的管道腐蚀抑制剂及制备方法和应用

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149037A (en) * 1962-09-07 1964-09-15 Hoffmann La Roche Vitamin compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4958084A (de) * 1972-10-10 1974-06-05
AU537619B2 (en) * 1980-04-28 1984-07-05 Betz International, Inc. Dioxo-aromatic compounds as oxygen scavengers in an aqueous medium
JPS63137184A (ja) * 1986-11-28 1988-06-09 Nippon Oil & Fats Co Ltd 水性錆止め剤

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3149037A (en) * 1962-09-07 1964-09-15 Hoffmann La Roche Vitamin compositions

Also Published As

Publication number Publication date
AU7848991A (en) 1993-01-07
CA2069952A1 (en) 1991-10-01
EP0522161A4 (de) 1992-10-23
DE69107449T2 (de) 1995-08-10
DE69107449D1 (de) 1995-03-23
EP0522161A1 (de) 1993-01-13
AU643796B2 (en) 1993-11-25
WO1991015612A1 (fr) 1991-10-17
ATE118559T1 (de) 1995-03-15

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