WO2011082286A2 - Method for the removing and reducing scaling - Google Patents

Method for the removing and reducing scaling Download PDF

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Publication number
WO2011082286A2
WO2011082286A2 PCT/US2010/062474 US2010062474W WO2011082286A2 WO 2011082286 A2 WO2011082286 A2 WO 2011082286A2 US 2010062474 W US2010062474 W US 2010062474W WO 2011082286 A2 WO2011082286 A2 WO 2011082286A2
Authority
WO
WIPO (PCT)
Prior art keywords
trimethylglycine
composition
scale
added
scaling
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.)
Ceased
Application number
PCT/US2010/062474
Other languages
English (en)
French (fr)
Other versions
WO2011082286A3 (en
Inventor
William H. Morris Iii
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.)
ChampionX LLC
Original Assignee
Nalco Co LLC
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
Priority to RU2012122871/05A priority Critical patent/RU2556665C2/ru
Priority to SG2012047395A priority patent/SG182276A1/en
Priority to BR112012012980A priority patent/BR112012012980B1/pt
Priority to KR1020127016581A priority patent/KR101765356B1/ko
Priority to CN201080056803.9A priority patent/CN102665877B/zh
Priority to NZ600162A priority patent/NZ600162A/xx
Priority to MX2012007770A priority patent/MX2012007770A/es
Priority to JP2012547292A priority patent/JP5717760B2/ja
Priority to AU2010339457A priority patent/AU2010339457B2/en
Application filed by Nalco Co LLC filed Critical Nalco Co LLC
Priority to EP10841711.4A priority patent/EP2519338A4/en
Priority to CA2781903A priority patent/CA2781903C/en
Publication of WO2011082286A2 publication Critical patent/WO2011082286A2/en
Publication of WO2011082286A3 publication Critical patent/WO2011082286A3/en
Priority to ZA2012/03786A priority patent/ZA201203786B/en
Priority to IL220061A priority patent/IL220061A0/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • C02F5/12—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 containing nitrogen
    • C02F5/125—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 containing nitrogen combined with inorganic substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B01D65/06—Membrane cleaning or sterilisation ; Membrane regeneration with special washing compositions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • 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
    • C02F5/12—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 containing nitrogen
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/101—Sulfur compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/105—Phosphorus compounds
    • 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
    • C02F2303/20—Prevention of biofouling
    • 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

Definitions

  • This invention relates to improved elimination of calcium phosphate scale in processing systems.
  • the invention also allows for improved anti scaling so that there is no build up in the system without pH adjustments. Further the invention in no way compromises the integrity of membranes if used in the system.
  • Calcium phosphate fouling is a growing concern for in many industries but most importantly in industries that use membranes for purification and filtration.
  • the membrane operators due to new municipal applications and changes in water sources have seen an increase in calcium phosphate scaling and need an effective and safe method of eliminating the build of such scale.
  • the traditional method of controlling scale, including calcium phosphate is to feed acid which is effective but has some drawbacks firstly it can be detrimental to the membranes or reduce the use time before replacement is needed, secondly it can be cost prohibitive for large systems and finally there is safety concerns with the use of acid in high flow, high-pressure acid feed systems. This is why the industry has worked to discover new technologies for the use as an anti-scalant especially with phosphate scale.
  • the prevention of calcium phosphate scale in systems is exemplified in the process of membrane based water purification where the prevention of calcium phosphate fouling using anti-scalant has been met with limited success, if any.
  • Factors contributing to this failure include the multiple forms of calcium phosphate, the slight negative charge of the membrane surface, and the negative effects of adding phosphonates and phosphates to water with a calcium phosphate scaling tendency.
  • the current invention is a successful phosphate, sulfate and calcium inhibitors, which can be used in membrane based water purification as well as a broad range of other applications. In one embodiment the invention is used with membrane systems.
  • the invention is used as a cleaner as trimethylglycine hydrochloride or as alternative salt such as trimethylglycine-potassium hydroxide or trimethylglycine-citric acid.
  • the invention is used as a membrane performance enhancer.
  • the invention consists of the addition of a solution of trimethylglycine to a system in effective amounts to eliminate the build up of scale or reduce existing scale build up.
  • the solution includes compositions with the chemical formula of CsHnN0 2 -HCl such as such as trimethylglycine hydrochloride, carboxymethyL, trimethylammonium chloride and N, N, N- trimethylglycine hydrochloride.
  • Trimethylglycine is currently used as an agricultural product, which is typically extracted from sugar beet molasses with water.
  • the major applications of trimethylglycine to date are livestock feed additive, human nutritional supplement, plant nutrition, and chemical reagent.
  • Trimethylglycine hydrochloride is effective at controlling calcium phosphate scale formation at various concentrations with dosage scaling with phosphate concentration.
  • Trimethylglycine is a small zwitterionic molecule (a positive and negative charge on the same molecule resulting in no overall formal molecular charge) with a trimethylammonium group (cation) and a carboxylate group (anion) separated by a single methylene group and balanced with a chloride and a proton respectively.
  • cation-containing anti-scalants are not used in membrane systems due to the fouling potential of classic cationic molecules and polymers.
  • the invention is a method for the reduction and/or control of scaling in a system with the addition of a trimethylglycine composition into the system reducing scaling and scale buildup.
  • the trimethylglycine composition that is used in the method may include one or more of the following: trimethylglycine hydrochloride, carboxymethyl, betaine hydrochloride,
  • the most preferred trimethylglycine composition is trimethylglycine hydrochloride.
  • the invention can be used with various systems and in one embodiment it is used in a water purification system.
  • the system allows for the safe use of a membrane within the process.
  • the current invention allows the membrane to maintain its integrity and can also increase its effectiveness by reducing any scale that can effect the membrane.
  • the method has the trimethylglycine composition added in a concentration proportionate to the concentration of the scale in the system.
  • the composition is preferable added in a concentration of greater than or equal to .2 ppm.
  • the composition can also be added in a concentration equal to or less than 25 ppm.
  • the invention can also use one or more anti scaling or cleaning composition in addition to the trimethylglycine composition.
  • the method can be used with phosphate or sulfate scale.
  • the trimethylglycine composition of the claimed invention may be a zwitterionic molecule.
  • the zwitterionic molecule may have a trimethylammonium group and a carboxylate group connected by a single methylene group with a chloride group.
  • the trimethylglycine composition in the claimed invention may be is added to the processing system consistently or intermittently.
  • the invention also allows for the addition of trimethylglycine composition and eliminates the need for any pH adjustment by any means.
  • AA/AMPS is a calcium phosphate anti-scalant used in cooling water and boiler applications with limited use in membrane applications at low concentrations for assured membrane compatibility.
  • Tests were run to determine the types of phosphates present at the on-set of scale in the presence of TMG HCl at 10 ppm. The experiment was carried to the point of having 53.3 ppm phosphate added which gives a pH of 6.96 and turbidity of 0.74. The effectiveness of TMG as an inhibitor of calcium phosphate scale is corroborated by data showing 95% of the total phosphate measured as orthophosphate. This data indicates that scale is occurring, but the growth event is inhibited by the trimethylglycine.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
  • Saccharide Compounds (AREA)
PCT/US2010/062474 2009-12-31 2010-12-30 Method for the removing and reducing scaling Ceased WO2011082286A2 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
AU2010339457A AU2010339457B2 (en) 2009-12-31 2010-12-30 Method for the removing and reducing scaling
BR112012012980A BR112012012980B1 (pt) 2009-12-31 2010-12-30 método para redução e/ou controle de incrustações em um sistema de purificação de água
KR1020127016581A KR101765356B1 (ko) 2009-12-31 2010-12-30 스케일 형성의 제거와 저감 방법
CN201080056803.9A CN102665877B (zh) 2009-12-31 2010-12-30 除去和减少结垢的方法
NZ600162A NZ600162A (en) 2009-12-31 2010-12-30 METHOD FOR THE REMOVING AND REDUCING SCALING using trimethylglycine
MX2012007770A MX2012007770A (es) 2009-12-31 2010-12-30 Metodo para la remocion y reduccion de incrustaciones.
JP2012547292A JP5717760B2 (ja) 2009-12-31 2010-12-30 スケールの除去及び低減のための方法
RU2012122871/05A RU2556665C2 (ru) 2009-12-31 2010-12-30 Способ удаления и уменьшения образования твердых отложений
EP10841711.4A EP2519338A4 (en) 2009-12-31 2010-12-30 METHOD FOR REMOVING AND MINIMIZING BOILER STONE TRAINING
SG2012047395A SG182276A1 (en) 2009-12-31 2010-12-30 Method for the removing and reducing scaling
CA2781903A CA2781903C (en) 2009-12-31 2010-12-30 Use of trimethylglycine to control scaling
ZA2012/03786A ZA201203786B (en) 2009-12-31 2012-05-23 Method for the removing and reducing scaling
IL220061A IL220061A0 (en) 2009-12-31 2012-05-30 Method for the removing and reducing scaling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/650,714 2009-12-31
US12/650,714 US10689280B2 (en) 2009-12-31 2009-12-31 Method for the removing and reducing scaling

Publications (2)

Publication Number Publication Date
WO2011082286A2 true WO2011082286A2 (en) 2011-07-07
WO2011082286A3 WO2011082286A3 (en) 2011-11-17

Family

ID=44186174

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2010/062474 Ceased WO2011082286A2 (en) 2009-12-31 2010-12-30 Method for the removing and reducing scaling

Country Status (18)

Country Link
US (1) US10689280B2 (https=)
EP (1) EP2519338A4 (https=)
JP (1) JP5717760B2 (https=)
KR (1) KR101765356B1 (https=)
CN (1) CN102665877B (https=)
AR (1) AR079620A1 (https=)
AU (1) AU2010339457B2 (https=)
BR (1) BR112012012980B1 (https=)
CA (1) CA2781903C (https=)
CL (1) CL2012001761A1 (https=)
IL (1) IL220061A0 (https=)
MX (1) MX2012007770A (https=)
NZ (1) NZ600162A (https=)
RU (1) RU2556665C2 (https=)
SG (1) SG182276A1 (https=)
TW (1) TWI554477B (https=)
WO (1) WO2011082286A2 (https=)
ZA (1) ZA201203786B (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10792477B2 (en) 2016-02-08 2020-10-06 Orbusneich Medical Pte. Ltd. Drug eluting balloon
EP4014805A1 (en) 2020-12-21 2022-06-22 Koninklijke Philips N.V. Device for delivering hot water and steam
US12024452B2 (en) * 2021-08-02 2024-07-02 University Of Houston System Dual nucleation and growth inhibitors of mineral scale

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Also Published As

Publication number Publication date
JP2013516309A (ja) 2013-05-13
RU2556665C2 (ru) 2015-07-10
NZ600162A (en) 2013-05-31
EP2519338A2 (en) 2012-11-07
EP2519338A4 (en) 2015-12-02
BR112012012980B1 (pt) 2020-04-07
KR101765356B1 (ko) 2017-08-14
US20110155664A1 (en) 2011-06-30
AU2010339457A1 (en) 2012-06-14
RU2012122871A (ru) 2014-02-10
US10689280B2 (en) 2020-06-23
WO2011082286A3 (en) 2011-11-17
BR112012012980A2 (pt) 2017-06-20
CN102665877A (zh) 2012-09-12
CA2781903A1 (en) 2011-07-07
IL220061A0 (en) 2012-09-24
CA2781903C (en) 2017-04-04
MX2012007770A (es) 2012-08-01
AU2010339457B2 (en) 2016-04-14
JP5717760B2 (ja) 2015-05-13
TWI554477B (zh) 2016-10-21
CN102665877B (zh) 2015-03-11
KR20120112493A (ko) 2012-10-11
AR079620A1 (es) 2012-02-08
CL2012001761A1 (es) 2012-12-21
SG182276A1 (en) 2012-08-30
ZA201203786B (en) 2013-02-27
TW201127757A (en) 2011-08-16

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