EP4179130B1 - Verfahren zur entfernung von ablagerungen von einer oberfläche - Google Patents

Verfahren zur entfernung von ablagerungen von einer oberfläche

Info

Publication number
EP4179130B1
EP4179130B1 EP20945151.7A EP20945151A EP4179130B1 EP 4179130 B1 EP4179130 B1 EP 4179130B1 EP 20945151 A EP20945151 A EP 20945151A EP 4179130 B1 EP4179130 B1 EP 4179130B1
Authority
EP
European Patent Office
Prior art keywords
precursor mix
poly
acid
minutes
glycol
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.)
Active
Application number
EP20945151.7A
Other languages
English (en)
French (fr)
Other versions
EP4179130A4 (de
EP4179130A1 (de
EP4179130C0 (de
Inventor
Ilya Yurievich RODIN
Gennady Sergeevich STAROSTIN
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.)
Angara Global Ltd
Original Assignee
Angara Global 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 Angara Global Ltd filed Critical Angara Global Ltd
Publication of EP4179130A1 publication Critical patent/EP4179130A1/de
Publication of EP4179130A4 publication Critical patent/EP4179130A4/de
Application granted granted Critical
Publication of EP4179130B1 publication Critical patent/EP4179130B1/de
Publication of EP4179130C0 publication Critical patent/EP4179130C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/003—Cleaning involving contact with foam
    • 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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/04—Special methods for preparing compositions containing mixtures of detergents by chemical means, e.g. by sulfonating in the presence of other compounding ingredients followed by neutralising
    • 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
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3726—Polyurethanes
    • 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
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
    • C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
    • C23G5/032—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing oxygen-containing compounds
    • 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
    • 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
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/42—Application of foam or a temporary coating on the surface to be cleaned
    • 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
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/44—Multi-step processes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation

Definitions

  • the invention relates to the field of removing various types of deposits from a surface, preferably the surface of industrial equipment.
  • large shell-and-tube heat exchangers used in the oil refinery usually require disassembly of both ends and internals, removal of the tube bundle, transportation to a cleaning facility for cleaning, reassembly, and leak testing. This process can take days or weeks, depending on several factors like exchanger size and weight, severity of fouling, whether specialty equipment is required to extract the tube bundle etc.
  • a method of removing deposits from a surface according to the state of the art is disclosed in RU 2696990 C2 .
  • FIG. 1 illustrates the structure of a shell-and-tube heat exchanger.
  • the disclosure relates to a method of removing various types of deposits from a surface.
  • the deposits can be salt deposits, deposits of a petroleum nature including fouling of heat exchangers, asphaltene-resin-paraffin, and resin and biological (bacterial) deposits.
  • the deposit is the fouling in a heat exchanger.
  • the deposit is the fouling in a heat exchanger used in oil refinery.
  • the surface is the surface of a heat exchanger.
  • the surface is the internal surface of shell-and-tube heat exchanger ( FIG. 1 ).
  • Heat exchanger fouling is a common problem in heat exchangers. It results in changing the surface of the heat transfer and reducing the efficiency of the heat transfer.
  • Corrosion fouling occurs when the fluid corrodes the surface of the exchanger wall, developing a layer of corrosion. This corroded metal prevents efficient heat transfer.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • General Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Combustion & Propulsion (AREA)
  • Polyurethanes Or Polyureas (AREA)

Claims (15)

  1. Verfahren zum Entfernen von Ablagerungen von einer Oberfläche, umfassend die Schritte
    Aufbringen eines ersten Vorläufergemischs auf die Oberfläche;
    Erlauben, dass das erste Vorläufergemisch die Ablagerungen durchdringt;
    Entfernen des ersten Vorläufergemischs;
    Aufbringen eines zweiten Vorläufergemischs auf die Oberfläche;
    Erlauben, dass das zweite Vorläufergemisch die Ablagerungen durchdringt;
    Entfernen des zweiten Vorläufergemischs;
    wobei das Verfahren dadurch gekennzeichnet ist, dass
    das erste Vorläufergemisch mit dem zweiten Vorläufergemisch reagiert, um einen Schaum zu bilden, und der Schaum innerhalb von Poren und Rissen der Ablagerungen expandiert und zu Abbrechen der Ablagerungen von der Oberfläche führt.
  2. Verfahren nach Anspruch 1, wobei der Schaum ein Polymerschaum ausgewählt aus der Gruppe bestehend aus Polyethylenen, Polyurethanen, Polyestern und Acrylnitril-Butadien-Styrol ist.
  3. Verfahren nach Anspruch 1, wobei das erste Vorläufergemisch ein Polyol umfasst.
  4. Verfahren nach Anspruch 3, wobei das Polyol ein Polyester ist, der aus einer Säure ausgewählt aus der Gruppe bestehend aus Bernsteinsäure, Glutansäure, Adipinsäure, Korksäure, Azelainsäure, Sebacinsäure, Phthalsäure, Isophthalsäure, Dodecandicarbonsäure und Gemischen davon hergestellt ist.
  5. Verfahren nach Anspruch 3, wobei das Polyol ein Glycol ausgewählt aus der Gruppe bestehend aus Ethylenglycol, 1,2-Propylenglycol, 1,3-Propylenglycol, 1,3-Butylenglycol, Tetramethylenglycol, Diethylenglycol, Methylenglycol, Pentamethylenglycol, Hexamethylenglycol, Xylylenglycol und Gemischen davon ist.
  6. Verfahren nach Anspruch 3, wobei das Polyol ein Polyether ausgewählt aus der Gruppe bestehend aus Poly(oxypropylen)glycolen, Poly(oxypropylen)-Poly(oxyethylen)-Copolymerglycolen, Poly(oxybutylen)glycolen, Poly(oxyethylen)glycolen, Poly(oxytetramethylen)glycolen, Poly(oxypropylen)glycerolen, Poly(oxypropylen)trimethylolpropanen, Poly(oxypropylen)-1,2,6-hexantriolen, Poly(ethylenoxid-propylenoxid-ethylendiamin)polyethern, Poly(oxyalkylen)sorbiten, Poly(oxyalkylen)pentaerythritolen, Poly(oxyalkylen)saccharose, Poly(oxyalkylen)glucose und Gemischen davon ist.
  7. Verfahren nach Anspruch 1, wobei das zweite Vorläufergemisch ein Polyisocyanat umfasst.
  8. Verfahren nach Anspruch 7, wobei das Polyisocyanat ausgewählt ist aus der Gruppe bestehend aus Ethylendiisocyanat, 1,4-Tetramethylendiisocyanat, 1,6-Hexamethylendiisocyanat, 1,12-Dodecandiisocyanat, Cyclobutan-1,3-diisocyanat, Cyclohexan-1,3- und -1,4-diisocyanat, 1-Isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexan (Isophorondiisocyanat), 2,4- und 2,6-Hexahydrotoluoldiisocyanat, Dicyclohexylmethan-4,4'-diisocyanat (hydriertes MDI oder HMDI), 1,3- und 1,4-Phenylendiisocyanat, 2,4- und 2,6-Toluoldiisocyanat (TDI), Diphenylmethan-2,4'- und/oder -4,4'-diisocyanat (MDI), Naphthylen-1,5-diisoianat, Triphenylmethan-4,4',4"-triisocyanat, Polyphenyl-polymethylenpolyisocyanaten (MDI Ausgangsmaterial), Norbornandiisocyanaten, m- und p-Isocyanatophenylsulfonylisocyanaten, perchlorierten Arylpolyisocyanaten, modifizierten Polyisocyanaten, Carbodiimid-modifizierten Polyisocyanaten, Isocyanuratmodifizierten Polyisocyanaten, Harnstoff-modfifizierten Polyisocyanaten, Biuret-enthaltenden Polyisocyanaten, Präpolymeren mit endständigen Isocyanatgruppen und Gemischen davon.
  9. Verfahren nach Anspruch 7, wobei das Polyisocyanat ein Toluoldiisocyanat (TDI) ist.
  10. Verfahren nach Anspruch 1, wobei das erste Vorläufergemisch ferner einen Katalysator umfasst.
  11. Verfahren nach Anspruch 10, wobei der Katalysator ausgewählt ist aus der Gruppe bestehend aus Alkylzinncarboxylaten, Triethylendiamin, 1,4-Diazabicyclo[2.2.2]-octan, Dimethylcyclohexylamin (DMCHA), Dimethylethanolamin (DMEA), Bis(2-dimethylaminoethyl)ether, Dibutylzinndilaurat und Gemischen davon.
  12. Verfahren nach Anspruch 1, wobei das erste Vorläufergemisch ferner ein Tensid umfasst.
  13. Verfahren nach Anspruch 12, wobei das Tensid ausgewählt ist aus der Gruppe bestehend aus Dialkylsulfobernsteinsäuremetallsalzen, organischen Dialkylsulfobernsteinsäuresalzen, Alkylbenzolsulfonsäuremetallsalzen, organischen Alkylbenzolsulfonsäuresalzen, Silwet-L-5130 und Gemischen davon.
  14. Verfahren nach Anspruch 1, ferner umfassend Erlauben, dass das erste Vorläufergemisch und das zweite Vorläufergemisch für eine ausreichende Zeit reagieren.
  15. Verfahren nach Anspruch 14, wobei die ausreichende Zeit ausgewählt ist aus der Gruppe bestehend aus 10 Minuten, 20 Minuten, 30 Minuten, 40 Minuten, 50 Minuten, 60 Minuten, 70 Minuten, 80 Minuten, 90 Minuten und 100 Minuten.
EP20945151.7A 2020-07-13 2020-07-13 Verfahren zur entfernung von ablagerungen von einer oberfläche Active EP4179130B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2020/000346 WO2022015187A1 (en) 2020-07-13 2020-07-13 Methods of removing deposits from a surface

Publications (4)

Publication Number Publication Date
EP4179130A1 EP4179130A1 (de) 2023-05-17
EP4179130A4 EP4179130A4 (de) 2024-04-24
EP4179130B1 true EP4179130B1 (de) 2026-03-04
EP4179130C0 EP4179130C0 (de) 2026-03-04

Family

ID=79555731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20945151.7A Active EP4179130B1 (de) 2020-07-13 2020-07-13 Verfahren zur entfernung von ablagerungen von einer oberfläche

Country Status (2)

Country Link
EP (1) EP4179130B1 (de)
WO (1) WO2022015187A1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UA46747C2 (uk) * 1996-06-17 2002-06-17 Дзе Бебкок Енд Уілкокс Компані, Корпорація Штату Делавер, Сша Розчин для очищення об'єктів від уранових сполук і спосіб очистки
US6994890B2 (en) * 2003-10-31 2006-02-07 Resource Development L.L.C. Cleaning and multifunctional coating composition containing an organosilane quaternary compound and hydrogen peroxide
EP2850167B1 (de) * 2012-05-14 2018-10-31 Ecolab USA Inc. Lösung zum entfernen von etiketten für wiederverwendbare getränkeflaschen
CN119194461A (zh) * 2016-08-24 2024-12-27 Ppg工业俄亥俄公司 用于处理金属基材的碱性组合物
RU2696990C2 (ru) * 2017-12-26 2019-08-08 Общество с ограниченной ответственностью "АНГАРА ДЕВЕЛОПМЕНТ" (ООО "АНГАРА ДЕВЕЛОПМЕНТ") Раствор для очистки поверхности от отложений различной природы

Also Published As

Publication number Publication date
EP4179130A4 (de) 2024-04-24
EP4179130A1 (de) 2023-05-17
WO2022015187A1 (en) 2022-01-20
EP4179130C0 (de) 2026-03-04

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