WO2014014665A1 - Method for operating a counter-flow ion exchange system - Google Patents

Method for operating a counter-flow ion exchange system Download PDF

Info

Publication number
WO2014014665A1
WO2014014665A1 PCT/US2013/049179 US2013049179W WO2014014665A1 WO 2014014665 A1 WO2014014665 A1 WO 2014014665A1 US 2013049179 W US2013049179 W US 2013049179W WO 2014014665 A1 WO2014014665 A1 WO 2014014665A1
Authority
WO
WIPO (PCT)
Prior art keywords
column
exchange resin
port
regenerate
upstream
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/US2013/049179
Other languages
French (fr)
Inventor
J. Marc SLAGT
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.)
Dow Global Technologies LLC
Original Assignee
Dow Global Technologies 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
Application filed by Dow Global Technologies LLC filed Critical Dow Global Technologies LLC
Priority to RU2015105764A priority Critical patent/RU2631816C2/en
Priority to BR112015001271A priority patent/BR112015001271A2/en
Priority to CN201380038539.XA priority patent/CN104661753B/en
Publication of WO2014014665A1 publication Critical patent/WO2014014665A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/022—Column or bed processes characterised by the construction of the column or container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/02—Column or bed processes
    • B01J47/026—Column or bed processes using columns or beds of different ion exchange materials in series
    • B01J47/028—Column or bed processes using columns or beds of different ion exchange materials in series with alternately arranged cationic and anionic exchangers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/05—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds
    • B01J49/08—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds containing cationic and anionic exchangers in separate beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/90—Regeneration or reactivation of ion-exchangers; Apparatus therefor having devices which prevent back-flow of the ion-exchange mass during regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor

Definitions

  • the present invention is directed toward ion exchange systems including multiple packed bed columns operating in counter-flow mode.
  • Ion exchange systems including multiple packed bed columns are used in a variety of demineralizing and softening applications. For example, hundreds of AMBERPACKTM and
  • DOWEXTM UPCORETM packed bed systems are in service world-wide.
  • AMBERPACKTM packed bed systems operate in an upflow production and downflow regeneration mode.
  • UPCORETM packed bed systems operate in a downflow production and upflow regeneration mode. Both AMBERPACKTM and UPCORETM systems can be designed as a single or multiple compartment lay-out. For example, two and three compartment columns (so called "layered beds") can
  • the invention includes an improved counter-flow ion exchange system and method for operating the same.
  • the system includes a plurality of vertically aligned columns of packed bed ion exchange resin including: an upstream column including a packed bed of cation exchange resin, and a downstream column including a packed bed of anion exchange resin that is in fluid communication with the upstream column, wherein both columns include an upper and lower port for ingress and egress of fluid.
  • a method of operating the system includes the steps of:
  • Figure 1A is schematic view of a dual compartment embodiment of the invention operating in production mode.
  • Figure IB is schematic view of the embodiment of Fig 1 A operating in regeneration mode.
  • the invention includes a counter-flow ion exchange system generally shown at 10 in Figures 1A and B.
  • the illustrated system includes two vertically aligned columns including an upstream column (12) include a packed bed of cation exchange resin, and a downstream column (14) including a packed bed of anion exchange resin.
  • the downstream column (14) is in fluid communication with the upstream column (12) such that liquid is able to pass from the upstream column (12) to the downstream column (14).
  • Both columns (12, 14) include at least one upper (16, 16') and lower (18, 18') port for ingress and egress of fluid.
  • Both columns (12, 14) are shown including an upper (20, 20') and lower (22, 22') chamber separated by a plate fitted with nozzles (24, 24').
  • the upper chamber (20) of the upstream column (12) is filled with a weak acid cation exchange resin while the lower chamber (22) is filled with a strong acid cation exchange resin.
  • the upper chamber (20') of the downstream column (14) is filled with a strong base anion exchange resin while the lower chamber (22') is filled with a weak base anion resin.
  • the columns are connected by way of piping with the fluid flow direction during production mode represented by heavy lines with arrows in Figure 1 A and in regeneration mode in Figure IB.
  • the upstream column (12) includes an optional freeboard (26) and floating inert resin (28).
  • An optional degasification tower (30) may be located along the fluid path between the upstream and downstream columns (12, 14).
  • each column While shown as including two columns, additional columns may also be used. Similarly, while each column is shown including two chambers, single chambered or multi-chambered arrangements may be used. Each column may include options vents, inlets, jet breakers, reinforcing plates, etc., as is known in the art.
  • the system cycles through production and regeneration modes.
  • feed liquid is introducing into the upper port (16) of the upstream column (12) such that feed liquid flows downward through the column (12) and exits through the lower port (18), and subsequently flows into the lower port (18') of the downstream column (14) and upward to exit from the upper port (16).
  • the production mode and corresponding fluid flow direction is illustrated in Figure 1A with reference to schematic arrows.
  • the regeneration mode the introduction of feed liquid into the system (10) is discontinued and a first regenerate is introduced into the into the upper port (16') of the downstream column (14) such that regenerate flows downward through the column (14) and exits through the lower port (18') where it is recaptured.
  • a second regenerate may be introduced into the lower port (18) of the upstream column (12) such that regenerate flows upward through the column (12) and exits through the upper port (16) where it may be recaptured.
  • the regeneration mode and corresponding fluid flow direction is illustrated in Figure IB with reference to schematic arrows.
  • the operation may additionally include optional backwashing steps.
  • the subject system and method of operation represents a hybrid of an AMBERPACKTM and

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Water By Ion Exchange (AREA)

Description

METHOD FOR OPERATING A COUNTER-FLOW ION EXCHANGE SYSTEM
FIELD
The present invention is directed toward ion exchange systems including multiple packed bed columns operating in counter-flow mode.
INTRODUCTION
Ion exchange systems including multiple packed bed columns are used in a variety of demineralizing and softening applications. For example, hundreds of AMBERPACK™ and
DOWEX™ UPCORE™ packed bed systems are in service world-wide. AMBERPACK™ packed bed systems operate in an upflow production and downflow regeneration mode. DOWEX™
UPCORE™ packed bed systems operate in a downflow production and upflow regeneration mode. Both AMBERPACK™ and UPCORE™ systems can be designed as a single or multiple compartment lay-out. For example, two and three compartment columns (so called "layered beds") can
accommodate weak and strong electrolyte resin combinations resulting in highly efficient systems.
SUMMARY
The invention includes an improved counter-flow ion exchange system and method for operating the same. In one embodiment, the system includes a plurality of vertically aligned columns of packed bed ion exchange resin including: an upstream column including a packed bed of cation exchange resin, and a downstream column including a packed bed of anion exchange resin that is in fluid communication with the upstream column, wherein both columns include an upper and lower port for ingress and egress of fluid. In another embodiment, a method of operating the system includes the steps of:
i) introducing a feed liquid into the upper port of the upstream column such that feed liquid flows downward through the column and exits through the lower port, and subsequently flows into the lower port of the downstream column and upward to exit from the upper port,
ii) discontinuing the introduction of feed liquid,
iii) introducing a first regenerate into the upper port of the downstream column such that regenerate flows downward through the column and exits through the lower port and introducing a second regenerate into the into the lower port of the upstream column such that regenerate flows upward through the column and exits through the upper port, and iv) repeating steps i) through iii).
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1A is schematic view of a dual compartment embodiment of the invention operating in production mode.
Figure IB is schematic view of the embodiment of Fig 1 A operating in regeneration mode. DETAILED DESCRIPTION
In one embodiment, the invention includes a counter-flow ion exchange system generally shown at 10 in Figures 1A and B. The illustrated system includes two vertically aligned columns including an upstream column (12) include a packed bed of cation exchange resin, and a downstream column (14) including a packed bed of anion exchange resin. The downstream column (14) is in fluid communication with the upstream column (12) such that liquid is able to pass from the upstream column (12) to the downstream column (14). Both columns (12, 14) include at least one upper (16, 16') and lower (18, 18') port for ingress and egress of fluid. Both columns (12, 14) are shown including an upper (20, 20') and lower (22, 22') chamber separated by a plate fitted with nozzles (24, 24'). The upper chamber (20) of the upstream column (12) is filled with a weak acid cation exchange resin while the lower chamber (22) is filled with a strong acid cation exchange resin. The upper chamber (20') of the downstream column (14) is filled with a strong base anion exchange resin while the lower chamber (22') is filled with a weak base anion resin. The columns are connected by way of piping with the fluid flow direction during production mode represented by heavy lines with arrows in Figure 1 A and in regeneration mode in Figure IB. The upstream column (12) includes an optional freeboard (26) and floating inert resin (28). An optional degasification tower (30) may be located along the fluid path between the upstream and downstream columns (12, 14).
While shown as including two columns, additional columns may also be used. Similarly, while each column is shown including two chambers, single chambered or multi-chambered arrangements may be used. Each column may include options vents, inlets, jet breakers, reinforcing plates, etc., as is known in the art.
During operation, the system cycles through production and regeneration modes. During the production mode, feed liquid is introducing into the upper port (16) of the upstream column (12) such that feed liquid flows downward through the column (12) and exits through the lower port (18), and subsequently flows into the lower port (18') of the downstream column (14) and upward to exit from the upper port (16). The production mode and corresponding fluid flow direction is illustrated in Figure 1A with reference to schematic arrows. During the regeneration mode, the introduction of feed liquid into the system (10) is discontinued and a first regenerate is introduced into the into the upper port (16') of the downstream column (14) such that regenerate flows downward through the column (14) and exits through the lower port (18') where it is recaptured. Simultaneously, a second regenerate may be introduced into the lower port (18) of the upstream column (12) such that regenerate flows upward through the column (12) and exits through the upper port (16) where it may be recaptured. The regeneration mode and corresponding fluid flow direction is illustrated in Figure IB with reference to schematic arrows. The operation may additionally include optional backwashing steps.
The subject system and method of operation represents a hybrid of an AMBERPACK™ and
UPC ORE™ packed bed system where the upstream column (12) operates as an UPCORE™ system and the downstream column (14) operates as an AMBERPACK™ system. This hybrid system offers unexpected advantages over both AMBERPACK™ and UPCORE™ packed bed systems.
EXAMPLES
The performance of an AMBERPACK™ and DOWEX™ UPCORE™ packed bed system was modeled and compared with a corresponding "hybrid" system using CADIX (Computer Assisted Design for Ion eXchange version 6.2) design software available from The Dow Chemical Company. In each case, flow rates, column configurations, resins and regenerants were the identical. The results of the modeling are summarized in Table 1. A dual compartment hybrid system represented by the Figures is also included. As shown by the data, the hybrid system had greater operational availability and required less service water than a comparable UPCORE™ and AMBERPACK™ packed bed system when operating under increasing TSS loadings.
Table 1 :
Figure imgf000004_0001

Claims

1. A method for operating a counter-flow ion exchange system comprising a plurality of vertically aligned columns of packed bed ion exchange resin including:
an upstream column comprising a packed bed of cation exchange resin, and
a downstream column comprising a packed bed of anion exchange resin that is in fluid communication with the upstream column, wherein both columns comprises an upper and lower port for ingress and egress of fluid,
wherein the method comprises the steps of:
i) introducing a feed liquid into the upper port of the upstream column such that feed liquid flows downward through the column and exits through the lower port, and subsequently flows into the lower port of the downstream column and upward to exit from the upper port,
ii) discontinuing the introduction of feed liquid,
iii) introducing a first regenerate into the into the upper port of the downstream column such that regenerate flows downward through the column and exits through the lower port and introducing a second regenerate into the into the lower port of the upstream column such that regenerate flows upward through the column and exits through the upper port, and
iv) repeating steps i) through iii).
2. The method of claim 1 wherein the upstream column comprises an upper chamber including weak acid cation exchange resin and a lower chamber including strong acid cation exchange resin.
3. The method of claim 1 wherein the downstream column comprises an upper chamber including strong base anion exchange resin and a lower chamber including weak base anion exchange resin.
PCT/US2013/049179 2012-07-20 2013-07-03 Method for operating a counter-flow ion exchange system Ceased WO2014014665A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2015105764A RU2631816C2 (en) 2012-07-20 2013-07-03 Method of countercurrent ion exchange system operation
BR112015001271A BR112015001271A2 (en) 2012-07-20 2013-07-03 method for operating a countercurrent ion exchange system
CN201380038539.XA CN104661753B (en) 2012-07-20 2013-07-03 Method for operating a counter-flow ion exchange system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261673882P 2012-07-20 2012-07-20
US61/673,882 2012-07-20

Publications (1)

Publication Number Publication Date
WO2014014665A1 true WO2014014665A1 (en) 2014-01-23

Family

ID=48790675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2013/049179 Ceased WO2014014665A1 (en) 2012-07-20 2013-07-03 Method for operating a counter-flow ion exchange system

Country Status (4)

Country Link
CN (1) CN104661753B (en)
BR (1) BR112015001271A2 (en)
RU (1) RU2631816C2 (en)
WO (1) WO2014014665A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106458647A (en) * 2014-06-10 2017-02-22 栗田工业株式会社 Operating method for regeneration type ion exchange device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109225359A (en) * 2018-09-21 2019-01-18 深圳市大分子科技有限公司 The preparation method of ion exchange column applied to polyimides purification

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617558A (en) * 1970-11-02 1971-11-02 Illinois Water Treatment Co Layered ion exchange process
AT324962B (en) * 1973-03-13 1975-09-25 Nagykanizsai Finommechanikai V ION EXCHANGE DEVICE, PREFERABLY WITH COUNTERCURRENT REGENERATION
US4001113A (en) * 1975-01-28 1977-01-04 The Amalgamated Sugar Company Ion exchange method
DE3014310A1 (en) * 1980-04-15 1981-10-22 Metallgesellschaft Ag, 6000 Frankfurt Double-bed ion exchange filter with regenerating soln. - flowing in opposite directions in each bed
EP0214764A2 (en) * 1985-08-08 1987-03-18 Dow Chemical Belgium Nv/Sa Method and apparatus for ion exchange applications

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617558A (en) * 1970-11-02 1971-11-02 Illinois Water Treatment Co Layered ion exchange process
AT324962B (en) * 1973-03-13 1975-09-25 Nagykanizsai Finommechanikai V ION EXCHANGE DEVICE, PREFERABLY WITH COUNTERCURRENT REGENERATION
US4001113A (en) * 1975-01-28 1977-01-04 The Amalgamated Sugar Company Ion exchange method
DE3014310A1 (en) * 1980-04-15 1981-10-22 Metallgesellschaft Ag, 6000 Frankfurt Double-bed ion exchange filter with regenerating soln. - flowing in opposite directions in each bed
EP0214764A2 (en) * 1985-08-08 1987-03-18 Dow Chemical Belgium Nv/Sa Method and apparatus for ion exchange applications

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106458647A (en) * 2014-06-10 2017-02-22 栗田工业株式会社 Operating method for regeneration type ion exchange device
CN106458647B (en) * 2014-06-10 2020-07-24 栗田工业株式会社 Operation method of regenerative ion exchange device

Also Published As

Publication number Publication date
BR112015001271A2 (en) 2017-07-04
CN104661753B (en) 2017-05-10
RU2631816C2 (en) 2017-09-26
RU2015105764A (en) 2016-09-10
CN104661753A (en) 2015-05-27

Similar Documents

Publication Publication Date Title
EP2658636B1 (en) Electrodeionization device with improved scaling resistance
JP7275536B2 (en) Electrodeionization apparatus and method for producing deionized water using the same
CN109482130A (en) Structured packing element with helical spiral shape
JP6904980B2 (en) Fractal style device and usage
CN108137354B (en) Water treatment device and water treatment method
WO2014014665A1 (en) Method for operating a counter-flow ion exchange system
JP5015990B2 (en) Electric deionized water production equipment
CN103833107A (en) Treatment of water
KR20120022567A (en) Method for produclng aqueous solution of tetraalkyl ammonium salt
KR20170137816A (en) Regeneration of the pasty resin
KR20090028782A (en) Electrodeionizer and water treatment method with low possibility of scale formation
EP2960209B1 (en) A method for purification of a cobalt containing solution by continuous ion exchange
CN103613219B (en) A kind of generator internal cooling water purification and deoxygenation decarbonization device and method
WO2016162177A1 (en) Method and device for temperature regulation of battery cells and vehicle
US7422691B2 (en) Method and apparatus for the demineralization of water
EP2704832B1 (en) Improved apparatus and circulating fluidized bed system
JP2020524593A (en) Fluid manifold in electrodialysis machine
JP2009066525A (en) Ion exchange resin filling method and condensate demineralizer
KR102440908B1 (en) Water quality management system and operation method of water quality management system
JP3632343B2 (en) Pure water production method and ion exchange tower
CN100577641C (en) Process for purifying aqueous acid solutions
WO2007040266A1 (en) Process and equipment for demineralizing condensate
JP2015147172A (en) Method for producing pure water
KR102571883B1 (en) A Novel Distribution System Using Meridian Panels for a Simulated Moving Bed Separation Method Using N Columns in Series
US20180141037A1 (en) Ion exchange column and methods of making and using the same

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: 13737110

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2015105764

Country of ref document: RU

Kind code of ref document: A

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112015001271

Country of ref document: BR

122 Ep: pct application non-entry in european phase

Ref document number: 13737110

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 112015001271

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20150120