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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 16. Отображено 16.
29-01-2019 дата публикации

Electrochemical desalination for oil recovery

Номер: US0010189726B2
Автор: Rongqiang Fu, Li-Shiang Liang, Kee Hoe Ng, FU RONGQIANG, LIANG LI-SHIANG, NG KEE HOE, Fu, Rongqiang, Liang, Li-Shiang, Ng, Kee Hoe
Принадлежит: Evoqua Water Technologies LLC, EVOQUA WATER TECH PTE LTD, EVOQUA WATER TECH LLC, Evoqua Water Technologies Pte. Ltd.

Electrically-driven separation systems and methods for use in oil recovery.

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Номер записи: 1
31-10-2013 дата публикации

ELECTRODIALYSIS SYSTEMS AND METHODS FOR ENERGY GENERATION AND WASTE TREATMENT

Номер: US20130288142A1
Автор: Rongqiang Fu, Kee Hoe Ng
Принадлежит: SIEMENS PTE. LTD.

Reverse electrodialysis (RED) may be used to neutralize acid and caustic effluent waste streams, such as in the semiconductor industry. Power may be generated while waste streams are treated by converting chemical energy into electric energy. A bipolar membrane may be integrated into the RED system. Alternatively, an anion exchange membrane and a cation exchange membrane may be overlapped and used in place of a bipolar membrane. A cell pair with four membranes and four chambers, without a bipolar membrane, may also be implemented. 1. A reverse electrodialysis system , comprising:an anode;a cathode;a load in electric communication with the anode and the cathode;a first chamber, positioned between the anode and the cathode, bounded by a first ion exchange membrane and a bipolar membrane, the first chamber being in fluid communication with an acidic waste effluent stream; anda second chamber, positioned between the anode and the cathode, bounded by the bipolar membrane and a second ion exchange membrane, the second chamber being in fluid communication with a caustic waste effluent stream.2. The system of claim 1 , further comprising a third chamber claim 1 , positioned between the anode and the cathode claim 1 , bounded by the second ion exchange membrane and a third ion exchange membrane claim 1 , the third chamber being in fluid communication with a salt solution source.3. The system of claim 1 , further comprising a recycle system configured to recirculate the acidic waste effluent stream to the first chamber.4. The system of claim 3 , wherein the recycle system is further configured to recirculate the caustic waste effluent stream to the second chamber.5. The system of claim 1 , wherein the system is constructed and arranged to neutralize the acidic and caustic waste effluent streams while converting their chemical energy to electric energy.6. The system of claim 5 , wherein the system is constructed and arranged to mix the acidic waste effluent stream at an outlet ...

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Номер записи: 2
22-10-2015 дата публикации

ELECTRODESALINATION SYSTEM AND METHOD

Номер: US20150299003A1
Автор: Rongqiang Fu, Kee Hoe Ng, Joseph D. Gifford, George Y. Gu, Li-Shiang Liang, Michael J. Shaw
Принадлежит:

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation. 19-. (canceled)10. A method of providing potable water , comprising:fluidly connecting a seawater feed stream to an inlet of an electrical purification system, the system comprising at least a first stage and a second stage downstream of the first stage;recovering water from the first stage at a first rate;recovering water from the second stage at a second rate that is less than the first rate; andfluidly connecting an outlet of the electrical purification system to a potable point of use.11. The method of claim 10 , further comprising maintaining a target concentration gradient between concentrate and dilute compartments in each of the first and second stages.12. The method of claim 11 , further comprising performing multiple dumps of a concentrate stream associated with at least one stage of the electrical purification system.13. The method of claim 10 , further comprising adjusting a pH level of an electrolyte in the electrical purification system.14. The method of claim 10 , further comprising performing a disinfecting or cleaning-in-place operation on the electrical purification system.15. The method of claim 10 , wherein the electrical purification system comprises a capacitive deionization device.16. A method of providing potable water claim 10 , comprising:fluidly connecting a seawater feed stream to an inlet of an electrical purification system, the system comprising at least a first electrodialysis (ED) stage and a second ED stage downstream of the first ED stage;inhibiting concentration polarization by passing a process stream through a dilute compartment in the second ED stage at an increased velocity relative to the first ED stage; anddelivering potable ...

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Номер записи: 3
03-07-2014 дата публикации

Electrodesalination System and Method

Номер: US20140183045A1
Автор: Rongqiang Fu, Joseph D. Gifford, George Y. Gu, Li-Shiang Liang, Kee Hoe Ng, Michael J. Shaw, FU RONGQIANG, GIFFORD JOSEPH D, GU GEORGE Y, LIANG LI-SHIANG, NG KEE HOE, SHAW MICHAEL J, GIFFORD JOSEPH D., GU GEORGE Y., SHAW MICHAEL J.
Принадлежит: Siemens Water Technologies LLC

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation. 1. A desalination system , comprising:an electrodialysis (ED) device;an electrodeionization (EDI) device fluidly connected downstream of the ED device; anda controller configured to determine an optimum transition point between the ED and EDI devices with respect to power consumption and salt removal, and further configured to bring the EDI device online when a product stream of the ED device achieves the optimum transition point.2. The system of claim 1 , wherein the optimum transition point is based on voltage drop.3. The system of claim 1 , wherein the optimum transition point is based on cell thickness.4. The system of claim 1 , wherein the optimum transition point is based on conductivity.5. The system of claim 1 , wherein the optimum transition point is between about 2500 ppm and about 3000 ppm.6. The system of claim 5 , wherein the optimum transition point is about 2800 ppm.7. The system of claim 1 , wherein the controller is further configured to adjust a pH level of an electrolyte in at least one of the ED and EDI devices.8. The system of claim 1 , further comprising a pretreatment unit fluidly connected upstream of the ED device.9. The system of claim 1 , wherein the controller is further configured to perform a disinfecting or cleaning-in-place operation on at least one of the ED and EDI devices.10. A method of providing potable water claim 1 , comprising:fluidly connecting a seawater feed stream to an inlet of an electrical purification system, the system comprising at least a first stage and a second stage downstream of the first stage;recovering water from the first stage at a first rate;recovering water from the second stage at a second rate that is ...

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Номер записи: 4
23-08-2016 дата публикации

Systems and techniques for electrodialysis

Номер: US0009422176B2
Автор: Kee Hoe Ng, Rongqiang Fu, Li-Shiang Liang, Zhee Min Jimmy Yong, Keng Hoo Yeo, NG KEE HOE, FU RONGQIANG, LIANG LI-SHIANG, YONG ZHEE MIN JIMMY, YEO KENG HOO, Ng Kee Hoe, Fu Rongqiang, Liang Li-Shiang, Yong Zhee Min Jimmy, Yeo Keng Hoo
Принадлежит: Evoqua Water Technologies Pte. Ltd., NG KEE HOE, FU RONGQIANG, LIANG LI-SHIANG, YONG ZHEE MIN JIMMY, YEO KENG HOO, EVOQUA WATER TECH PTE LTD, Ng Kee Hoe, Fu Rongqiang, Liang Li-Shiang, Yong Zhee Min Jimmy, Yeo Keng Hoo

Electrochemical separation devices are configured for lower energy consumption. Techniques for reducing shadow effect may involve providing distance between a spacer screen and an adjacent ion-selective membrane. A spacer having a screen that is thin relative to a surrounding frame may be used. Mild pressure may also be applied to a compartment to promote distance between a spacer screen and an adjacent ion-selective membrane.

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Номер записи: 5
22-12-2016 дата публикации

Methods and Systems for Polarization Control

Номер: US20160368791A1
Автор: Rongqiang Fu, Kee Hoe NG, Li-Shiang Liang, FU RONGQIANG, NG KEE HOE, LIANG LI-SHIANG, Fu Rongqiang, NG Kee Hoe, Liang Li-Shiang
Принадлежит:

Disclosed are methods to predict the occurrence of polarization and the design and operation of electrochemical systems to maintain a current density below the limiting current density and avoid instability. 1. A method of operating a multi-stage electrochemical treatment system having a first stage with at least one electrochemical treatment device comprising a first cell stack , and a second stage with at least one electrochemical treatment device comprising a second cell stack , the first stage in fluid communication upstream of the second stage , the method comprising:introducing a liquid to be treated to an inlet of the first stage;calculating a limiting current density for the first stage;operating in the first stage at a first current density across the first cell stack, the first current density below the limiting current density for the first stage;removing a first amount of total dissolved solids from the liquid, in the first stage, to produce a partially-treated liquid;withdrawing the partially-treated liquid from an outlet of the first stage;introducing the partially-treated liquid to an inlet of the second stage;calculating a limiting current density for the second stage;operating in the second stage at a second current density across the second cell stack, the second current density below the limiting current density for the second stage;removing a second amount of total dissolved solids from the partially-treated liquid, in the second stage, the second amount of total dissolved solids being less than the first amount of total dissolved solids to produce a treated liquid; andproviding the treated liquid at an outlet of the second stage.2. The method of claim 1 , wherein operating in the first stage further comprises operating at a first liquid flow velocity through the first stage and operating in the second stage comprises operating at a second liquid flow velocity through the second stage claim 1 , the second liquid flow velocity being greater than ...

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Номер записи: 6
20-02-2024 дата публикации

Regeneration system for carbon-rich amine solutions and method for using the same

Номер: US0011904270B2
Автор: Tongwen Xu, Chenxiao Jiang, Xia Chen, Rongqiang Fu, Zhaoming Liu
Принадлежит: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

The invention relates to a regeneration system for a carbon-rich amine solution produced in carbon dioxide capture from a mixed gas and a method for using the same. This regeneration system is composed of a bipolar membrane electrodialysis apparatus and a carbon dioxide removal apparatus, wherein the bipolar membrane electrodialysis apparatus is composed of a bipolar membrane electrodialysis membrane stack fixed between an anode plate and a cathode plate, the carbon dioxide removal apparatus is composed of one or more hollow fiber membrane contactors, the inlet of the carbon dioxide removal apparatus is fluidly connected with the outlet of the acid chamber of the bipolar membrane electrodialysis apparatus, the outlet of the carbon dioxide removal apparatus is fluidly connected with the acid solution storage tank, and carbon dioxide gas removed by the carbon dioxide removal apparatus is collected in a carbon dioxide storage tank. In the invention, by treating a carbon-rich amine solution having heat stable salts with a combined apparatus of bipolar membrane electrodialysis and carbon dioxide removal, individual operation for conventional heat stripping and organic amine regeneration is avoided, the energy consumption of carbon capture is reduced, the process flow is simplified, and the overall net capture efficiency of carbon dioxide is improved.

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Номер записи: 7
31-01-2017 дата публикации

Electrodesalination system and method

Номер: US0009556044B2
Автор: Rongqiang Fu, Kee Hoe Ng, Joseph D. Gifford, George Y. Gu, Li-Shiang Liang, Michael J. Shaw, FU RONGQIANG, NG KEE HOE, GIFFORD JOSEPH D, GU GEORGE Y, LIANG LI-SHIANG, SHAW MICHAEL J, Fu Rongqiang, Ng Kee Hoe, Gifford Joseph D., Gu George Y., Liang Li-Shiang, Shaw Michael J.
Принадлежит: EVOQUA WATER TECH PTE LTD, EVOQUA WATER TECHNOLOGIES PTE. LTD.

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation.

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Номер записи: 8
14-03-2013 дата публикации

METHOD AND SYSTEM FOR DISPOSAL OF BRINE SOLUTION

Номер: US20130062207A1
Автор: Rongqiang Fu
Принадлежит: SIEMENS AG

A reverse electrodialyzer has a plurality of concentrated compartments and diluted compartments arranged alternatively. The concentrated compartments and the diluted compartments are formed by successive alternatively arranged oppositely charged ion exchange membranes between two electrodes. A brine solution is fed into the concentrated compartments, and a diluted solution is into the diluted compartments, the salinity of the diluted solution being lower than the salinity of the brine solution. Ions from the brine solution in the concentrated compartments pass through the membranes to the diluted solution in the diluted compartments forming a diluted brine solution in the concentrated compartments. The brine solution is extracted from the concentrated compartments for disposal. An electrical energy is produced due to the concentration difference of the brine solution and the diluted solution.

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Номер записи: 9
06-02-2020 дата публикации

REGENERATION SYSTEM FOR CARBON-RICH AMINE SOLUTIONS AND METHOD FOR USING THE SAME

Номер: US20200038803A1
Автор: Chen Xia, Fu Rongqiang, JIANG Chenxiao, LIU Zhaoming, XU Tongwen
Принадлежит: UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA

The invention relates to a regeneration system for a carbon-rich amine solution produced in carbon dioxide capture from a mixed gas and a method for using the same. This regeneration system is composed of a bipolar membrane electrodialysis apparatus and a carbon dioxide removal apparatus, wherein the bipolar membrane electrodialysis apparatus is composed of a bipolar membrane electrodialysis membrane stack fixed between an anode plate and a cathode plate, the carbon dioxide removal apparatus is composed of one or more hollow fiber membrane contactors, the inlet of the carbon dioxide removal apparatus is fluidly connected with the outlet of the acid chamber of the bipolar membrane electrodialysis apparatus, the outlet of the carbon dioxide removal apparatus is fluidly connected with the acid solution storage tank, and carbon dioxide gas removed by the carbon dioxide removal apparatus is collected in a carbon dioxide storage tank. In the invention, by treating a carbon-rich amine solution having heat stable salts with a combined apparatus of bipolar membrane electrodialysis and carbon dioxide removal, individual operation for conventional heat stripping and organic amine regeneration is avoided, the energy consumption of carbon capture is reduced, the process flow is simplified, and the overall net capture efficiency of carbon dioxide is improved. 1. A regeneration system for a carbon-rich amine solution produced in carbon dioxide capture from a mixed gas , which is composed of a bipolar membrane electrodialysis apparatus and a carbon dioxide removal apparatus , whereinthe bipolar membrane electrodialysis apparatus is composed of a bipolar membrane electrodialysis membrane stack fixed between an anode plate and a cathode plate, and the anode plate and the cathode plate are respectively connected to a positive electrode and a negative electrode of a stabilized voltage or current power supply;the bipolar membrane electrodialysis membrane stack is formed by alternately ...

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Номер записи: 10
07-08-2014 дата публикации

ELECTROCHEMICAL DESALINATION FOR OIL RECOVERY

Номер: US20140216934A1
Автор: Fu Rongqiang, Liang Li-Shiang, Ng Kee Hoe
Принадлежит: Evoqua Water Technologies LLC

Electrically-driven separation systems and methods for use in oil recovery. 1. A method for improved oil recovery , comprising:introducing seawater to an electrically-driven separation system;treating the seawater with the electrically-driven separation system to produce treated water including less than about 200 mg/l of sulfate; andflooding at least a portion of an oil reservoir with the treated water.2. The method of claim 1 , wherein the treated water includes less than about 100 mg/l of sulfate.3. The method of claim 2 , wherein the treated seawater includes less than about 40 mg/l sulfate.4. The method of claim 1 , further comprising heating the seawater introduced to the electrically-driven separation system.5. The method of claim 4 , wherein heating the seawater comprises cooling a generator with the seawater.6. The method of claim 4 , wherein the seawater is heated to a temperature above about 45° C.7. The method of claim 1 , wherein the treated water has a hardness of about 400 ppm.8. The method of claim 1 , wherein the treated water has a total dissolved solids (TDS) content in the range of about 1000 mg/l to about 5000 mg/l.9. The method of claim 1 , wherein treating the seawater comprises introducing the seawater to at least one electrodialysis apparatus in the electrically-driven separation system.10. The method of claim 9 , wherein treating the seawater comprises passing a first portion of the seawater through a first electrodialysis apparatus to produce a first water product and passing a second portion of the seawater through a second electrodialysis apparatus to produce a second water product.11. The method of claim 10 , further comprising blending the first and second water products to produce the treated water.12. The method of claim 10 , wherein passing the first portion of the seawater through the first electrodialysis apparatus comprises removing a first fraction of hardness ions and wherein passing the second portion of the seawater through ...

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Номер записи: 11
02-08-2018 дата публикации

Methods and systems for polarization control

Номер: AU2014302497B2
Автор: Kee Hoe Ng, Li-Shiang Liang, Rongqiang Fu
Принадлежит: Evoqua Water Technologies LLC, Evoqua Water Technologies Pte Ltd

Disclosed are methods to predict the occurrence of polarization and the design and operation of electrochemical systems to maintain a current density below the limiting current density and avoid instability.

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Номер записи: 12
10-01-2013 дата публикации

Electrodesalination system and method

Номер: CA2840739A1
Автор: George Y. Gu, Joseph D. Gifford, Kee Hoe Ng, Li-Shiang Liang, Michael J. Shaw, Rongqiang Fu
Принадлежит: Siemens Water Technologies Pte Ltd

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation.

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Номер записи: 13
08-06-2021 дата публикации

Electrochemical desalination for oil recovery

Номер: CA2850352C
Автор: Kee Hoe Ng, Li-Shiang Liang, Rongqiang Fu
Принадлежит: Evoqua Water Technologies Pte Ltd

ABSTRACT The invention provides a method and system related to secondary oil recovery. The method is for introducing treated seawater to an oil reservoir. Seawater is introduced to an electrically-driven separation system. A first portion of the seawater is passed through a first electrodialysis apparatus of the system, which includes monovalent selective membranes, and a second portion of the seawater is passed through a second electrodialysis apparatus of the system, which includes divalent selective membranes, for treatment based on a measured parameter to produce first and second product streams, which are blended to produce treated water having <200 mg/1 of sulfate, a total dissolved solids content of 1000 to 5000 mg/1, and a hardness of 100 to 1000 ppm without blending or remineralizing the treated water with a source of hardness. At least a portion of an oil reservoir is then flooded with the treated water. CA 2850352 2019-02-28

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Номер записи: 14
18-04-2013 дата публикации

Electrodesalination system and method

Номер: AU2012279277A1
Автор: George Y. Gu, Joseph D. Gifford, Kee Hoe Ng, Li-Shiang Liang, Michael J. Shaw, Rongqiang Fu
Принадлежит: Evoqua Water Technologies Pte Ltd

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation.

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Номер записи: 15
22-06-2017 дата публикации

Electrodesalination system and method

Номер: AU2015242989B2
Автор: George Y. Gu, Joseph D. Gifford, Kee Hoe Ng, Li-Shiang Liang, Michael J. Shaw, Rongqiang Fu
Принадлежит: Evoqua Water Technologies Pte Ltd

Systems and methods for the desalination of seawater or brackish water for the purpose of obtaining potable water. Systems may include a combination of electrodialysis and electrodeionization modules. The system configuration and process controls may achieve low energy consumption and stable operation.

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Номер записи: 16