JPWO2020112592A5 - - Google Patents

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JPWO2020112592A5
JPWO2020112592A5 JP2021527145A JP2021527145A JPWO2020112592A5 JP WO2020112592 A5 JPWO2020112592 A5 JP WO2020112592A5 JP 2021527145 A JP2021527145 A JP 2021527145A JP 2021527145 A JP2021527145 A JP 2021527145A JP WO2020112592 A5 JPWO2020112592 A5 JP WO2020112592A5
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ion exchange
liquid desiccant
exchange membrane
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液体乾燥剤システムであって、
電気透析スタックを備え、前記電気透析スタックが、
中央イオン交換膜によって分離された液体乾燥剤の希釈ストリーム及び濃縮ストリームを有する液体乾燥剤ループと、
前記中央イオン交換膜とは異なるタイプのそれぞれ第１及び第２の外側イオン交換膜によって前記液体乾燥剤ループの前記希釈ストリーム及び前記濃縮ストリームから分離された第１及び第２のレドックスストリームを有するレドックスシャトルループと、
前記電気透析スタックの両端に電圧を印加するように動作可能な第１及び第２の電極と、
を含み、
前記液体乾燥剤システムが更に、
前記液体乾燥剤の前記濃縮ストリームと流体連通した気液界面であって、前記液体乾燥剤の前記濃縮ストリームを前記気液界面を横切って流れる空気に晒す、気液界面を備え、前記濃縮ストリームが、前記空気からの水の吸収を介して希釈されて出力ストリームを形成し、前記出力ストリームが、前記電気透析スタックの液体乾燥剤ループに循環して戻される、
ことを特徴とする液体乾燥剤システム。 A liquid desiccant system comprising:
an electrodialysis stack, the electrodialysis stack comprising:
a liquid desiccant loop having dilute and concentrated streams of liquid desiccant separated by a central ion exchange membrane;
redox having first and second redox streams separated from said dilute and concentrate streams of said liquid desiccant loop by respective first and second outer ion exchange membranes of a type different from said central ion exchange membrane shuttle loop and
first and second electrodes operable to apply a voltage across the electrodialysis stack;
including
The liquid desiccant system further comprises:
a gas-liquid interface in fluid communication with the concentrated stream of the liquid desiccant, the gas-liquid interface exposing the concentrated stream of the liquid desiccant to air flowing across the gas-liquid interface; , being diluted through the absorption of water from the air to form an output stream, the output stream being circulated back to the liquid desiccant loop of the electrodialysis stack;
A liquid desiccant system characterized by: 前記液体乾燥剤を前記電気透析スタック及び前記気液界面を通して循環させる第１のポンプであって、前記気液界面からの前記出力ストリームは、前記電気透析スタックに入ったときに、前記希釈ストリームと前記濃縮ストリームとに分割される、第１のポンプと、
第１及び第２の外側イオン交換膜を横切って第１及び第２のレドックスストリームを循環させる第２のポンプと、
を更に備える、請求項１に記載の液体乾燥剤システム。 a first pump for circulating the liquid desiccant through the electrodialysis stack and the gas-liquid interface, wherein the output stream from the gas-liquid interface is combined with the dilution stream when entering the electrodialysis stack; a first pump divided into the concentrate stream;
a second pump for circulating the first and second redox streams across the first and second outer ion exchange membranes;
The liquid desiccant system of claim 1, further comprising: 前記中央イオン交換膜が陽イオン交換膜を含み、前記第１及び第２の外側イオン交換膜が、陰イオン交換膜を含む、請求項１に記載の液体乾燥剤システム。 2. The liquid desiccant system of claim 1, wherein the central ion exchange membrane comprises a cation exchange membrane and the first and second outer ion exchange membranes comprise anion exchange membranes. 前記中央イオン交換膜が陰イオン交換膜を含み、前記第１及び第２の外側イオン交換膜が陽イオン交換膜を含む、請求項１に記載の液体乾燥剤システム。 2. The liquid desiccant system of claim 1, wherein said central ion exchange membrane comprises an anion exchange membrane and said first and second outer ion exchange membranes comprise cation exchange membranes. 前記気液界面と熱的に連通する熱伝達要素を更に備え、前記熱伝達要素は、空気からの水の吸収から生成された熱をヒートシンクへの前記気液界面での前記出力ストリームに伝達する、請求項１に記載の液体乾燥剤システム。 Further comprising a heat transfer element in thermal communication with the gas-liquid interface, the heat transfer element transferring heat generated from absorption of water from air to the output stream at the gas-liquid interface to a heat sink. The liquid desiccant system of claim 1. 前記液体乾燥剤の前記希釈ストリーム及び前記濃縮ストリームのうちの少なくとも１つの一部を貯蔵するリザーバを更に備え、前記空気から吸収された水が、前記希釈ストリームに加えられた水の量と等しくない場合、前記貯蔵された部分は前記液体乾燥剤ループに加えられる、請求項１に記載の液体乾燥剤システム。 a reservoir storing a portion of at least one of the diluted stream and the concentrated stream of the liquid desiccant, wherein the water absorbed from the air is unequal to the amount of water added to the diluted stream. 2. The liquid desiccant system of claim 1, wherein when the stored portion is added to the liquid desiccant loop. 前記レドックスシャトルループからの流体の一部を貯蔵するリザーバと流体連通した電気透析電池を更に備え、前記貯蔵された部分は、前記電気透析電池を介して電気を生成するのに使用される。請求項１に記載の液体乾燥剤システム。 An electrodialysis battery in fluid communication with a reservoir storing a portion of fluid from the redox shuttle loop, the stored portion being used to generate electricity via the electrodialysis battery. The liquid desiccant system of claim 1. 前記希釈ストリームを貯蔵することによって水を取り込むリザーバを更に備える、請求項１に記載の液体乾燥剤システム。 2. The liquid desiccant system of claim 1, further comprising a reservoir that captures water by storing the dilution stream. 前記希釈ストリームに結合された水処理システムを更に備え、前記水処理システムが、電気透析スタック以外の水処理プロセスを使用する、請求項１に記載の液体乾燥剤システム。 2. The liquid desiccant system of claim 1, further comprising a water treatment system coupled to said dilution stream, said water treatment system using a water treatment process other than an electrodialysis stack. 前記電圧によって、
前記希釈ストリームから前記第１のレドックスストリーム及び前記濃縮ストリームに移動する乾燥剤濃縮物をもたらす、前記中央イオン交換膜と前記第１の外側イオン交換膜を横切る第１のイオン移動と、
前記第２のレドックスストリームから前記濃縮ストリームへの前記乾燥剤濃縮物の移動を引き起こす前記第２の外側交換膜を横切る第２のイオン移動と、
が引き起こされる、請求項１に記載の液体乾燥剤システム。 By said voltage,
a first ion transfer across the central ion exchange membrane and the first outer ion exchange membrane resulting in a desiccant concentrate traveling from the dilute stream to the first redox stream and the concentrate stream;
a second ion transfer across the second outer exchange membrane causing transfer of the desiccant concentrate from the second redox stream to the concentrate stream;
2. The liquid desiccant system of claim 1, wherein is caused to. 前記乾燥剤濃縮物がＬｉＣｌを含む、請求項１０に記載の液体乾燥剤システム。 11. The liquid desiccant system of claim 10, wherein said desiccant concentrate comprises LiCl. 前記レドックスシャトルループが、フェロシアン化物／フェリシアニド［Ｆｅ（ＣＮ）6］4-/3-又は負に帯電したフェロセン誘導体を含む、請求項１０に記載の液体乾燥剤システム。 11. The liquid desiccant system of claim 10, wherein the redox shuttle loop comprises ferrocyanide/ferricyanide [Fe(CN) 6 ] 4-/3- or a negatively charged ferrocene derivative. 前記レドックスシャトルループが、正に帯電したフェロセン誘導体を含む、請求項１０に記載の液体乾燥剤システム。 11. The liquid desiccant system of claim 10, wherein the redox shuttle loop comprises a positively charged ferrocene derivative. それぞれ第３及び第４の外側イオン交換膜によって液体乾燥剤ループの第２の希薄ストリーム及び第２の濃縮物ストリームから分離された第３及び第４のレドックスストリームを有する第２のレドックスシャトルループと、
第３及び第４の外側イオン交換膜の間の第２の中心イオン交換膜と、
を更に備え、
前記電圧によって、前記第２の中心イオン交換膜と前記第３の外側イオン交換膜を横切る第２のイオン移動を引き起こし、これにより前記第２の希釈ストリームからの前記乾燥剤濃縮物を前記第３のレドックスストリーム及び第２の濃縮ストリームに移動させるようにする、請求項１に記載の液体乾燥剤システム。 a second redox shuttle loop having third and fourth redox streams separated from the second lean and second concentrate streams of the liquid desiccant loop by third and fourth outer ion exchange membranes, respectively; ,
a second central ion exchange membrane between the third and fourth outer ion exchange membranes;
further comprising
The voltage causes a second ion transfer across the second central ion exchange membrane and the third outer ion exchange membrane, thereby transferring the desiccant concentrate from the second dilution stream to the third ion exchange membrane. 2. The liquid desiccant system of claim 1, wherein the redox stream and the second concentrate stream. 前記液体乾燥剤ループの希釈ストリームが、前記レドックスシャトルループとの膜接触から出るときに、前記第２の希釈ストリーム及び前記第２の濃縮ストリームに分割され、
第２の希釈ストリームが前記第２の中央イオン交換膜と前記第３の外側イオン交換膜との間を流れ、前記第４の外側イオン交換膜との間を流れるようになる、請求項１４に記載の液体乾燥剤システム。 the dilute stream of the liquid desiccant loop is split into the second dilute stream and the second concentrate stream as it exits membrane contact with the redox shuttle loop;
15. The method of claim 14, wherein a second dilution stream flows between said second central ion exchange membrane and said third outer ion exchange membrane and flows between said fourth outer ion exchange membrane. A liquid desiccant system as described. 前記第２の濃縮ストリームは、前記出力ストリームとほぼ同等の乾燥剤濃縮物レベルを有し、前記出力ストリームと再混合される、請求項１５に記載の液体乾燥剤システム。 16. The liquid desiccant system of claim 15, wherein said second concentrate stream has approximately the same desiccant concentrate level as said output stream and is remixed with said output stream. 前記液体乾燥剤の濃縮ストリームが前記電気透析スタックから出た後に前記液体乾燥剤の濃縮ストリームの少なくとも一部を受け取る入口、及び前記貯蔵された液体乾燥剤の濃縮ストリームを前記気液界面に供給する出口を有する第１の保持リザーバと、
前記出力ストリームが前記気液界面から出た後に前記出力ストリームの少なくとも一部を受け取る入口、及び前記貯蔵された出力ストリームを前記電気透析スタックに供給する出口を有する第２の保持リザーバと、
前記電気透析スタックを通して前記第２の保持リザーバ内の流体を循環させる第１のポンプであって、前記流体が前記希釈ストリームと前記濃縮ストリームとに分割される、第１のポンプと、
前記気液界面を通して前記第１の保持リザーバ内の流体を循環させる第２のポンプであって、前記第１のポンプ及び前記第２のポンプが互いに独立して動作するように構成された、第２のポンプと、
を更に備える、請求項１に記載の液体乾燥剤システム。 an inlet for receiving at least a portion of the concentrated stream of liquid desiccant after the concentrated stream of liquid desiccant exits the electrodialysis stack; and providing the stored concentrated stream of liquid desiccant to the gas-liquid interface. a first holding reservoir having an outlet;
a second holding reservoir having an inlet that receives at least a portion of the output stream after it exits the gas-liquid interface and an outlet that supplies the stored output stream to the electrodialysis stack;
a first pump for circulating fluid in said second holding reservoir through said electrodialysis stack, said fluid being split into said dilute stream and said concentrate stream;
a second pump for circulating fluid in the first holding reservoir through the gas-liquid interface, wherein the first pump and the second pump are configured to operate independently of each other; 2 pumps;
The liquid desiccant system of claim 1, further comprising: 前記第２の保持リザーバからの流体の少なくとも一部が前記電気透析スタックによって濃縮され、後で使用できるように前記第１の保持リザーバ内に貯蔵される、請求項１７に記載の液体乾燥剤システム。 18. The liquid desiccant system of claim 17, wherein at least a portion of fluid from said second holding reservoir is concentrated by said electrodialysis stack and stored within said first holding reservoir for later use. . 前記第１の保持リザーバからの流体の少なくとも一部が前記気液界面によって希釈され、後で使用できるように前記第２の保持リザーバ内に貯蔵される、請求項１８に記載の液体乾燥剤システム。 19. The liquid desiccant system of claim 18, wherein at least a portion of fluid from said first retention reservoir is diluted by said gas-liquid interface and stored within said second retention reservoir for later use. . 気液界面を介して液体乾燥剤を循環させるステップと、
前記気液界面を横切って空気を流し、液体乾燥剤が前記空気から水を吸収し、前記液体乾燥剤が前記水の吸収によって希釈されて出力ストリームを形成するステップと、
電気透析スタックへの入力において、前記出力ストリームを希釈ストリームと濃縮ストリームとに分割し、前記電気透析スタックが、中央イオン交換膜と、前記中央イオン交換膜とは異なるタイプの第１及び第２の外側イオン交換膜を有する、ステップと、
前記中央イオン交換膜と前記第１の外側イオン交換膜との間で希釈ストリームを流すステップと、
前記中央イオン交換膜と前記第２の外側イオン交換膜との間で前記濃縮ストリームを流すステップと、
前記第１及び第２の外側イオン交換膜の周りにレドックスシャトルループを循環させるステップと、
前記電気透析スタックに電圧を印加するステップと、
を含む、方法。 circulating a liquid desiccant through an air-liquid interface;
flowing air across said gas-liquid interface, liquid desiccant absorbing water from said air, said liquid desiccant being diluted by said water absorption to form an output stream;
At the input to an electrodialysis stack, the output stream is split into a dilute stream and a concentrate stream, the electrodialysis stack having a central ion exchange membrane and first and second ion exchange membranes of different types than the central ion exchange membrane. having an outer ion exchange membrane;
flowing a dilute stream between the central ion exchange membrane and the first outer ion exchange membrane;
flowing the concentrated stream between the central ion exchange membrane and the second outer ion exchange membrane;
circulating a redox shuttle loop around the first and second outer ion exchange membranes;
applying a voltage to the electrodialysis stack;
A method, including 前記電圧を印加することによって、
前記希釈ストリームから前記レドックスシャトルループ及び前記濃縮ストリームに移動する乾燥剤濃縮物をもたらす、前記中央イオン交換膜と前記第１の外側イオン交換膜を横切る第１のイオン移動と、
前記レドックスシャトルループから前記濃縮ストリームへの前記乾燥剤濃縮物の移動を引き起こす前記第２の外側交換膜を横切る第２のイオン移動と、
が引き起こされる、請求項２０に記載の方法。 By applying said voltage,
a first ion transfer across said central ion exchange membrane and said first outer ion exchange membrane resulting in a desiccant concentrate traveling from said dilute stream to said redox shuttle loop and said concentrate stream;
a second ion transfer across the second outer exchange membrane causing transfer of the desiccant concentrate from the redox shuttle loop to the concentrate stream;
21. The method of claim 20, wherein is caused. 前記中央イオン交換膜が陽イオン交換膜を含み、前記第１及び第２の外側イオン交換膜が陰イオン交換膜を含む、請求項２０に記載の方法。 21. The method of claim 20, wherein the central ion exchange membrane comprises a cation exchange membrane and the first and second outer ion exchange membranes comprise anion exchange membranes. 前記電気透析スタックから前記希釈ストリームを排出するステップを更に含む、請求項２０に記載の方法。 21. The method of claim 20, further comprising exhausting the diluted stream from the electrodialysis stack. 前記液体乾燥剤の前記希釈ストリーム及び前記濃縮ストリームのうちの少なくとも１つの一部を貯蔵するステップと、
前記空気から吸収された前記水が、前記希釈ストリーム中の水と等しくないと判断し、これに応じて、前記貯蔵された部分を前記濃縮ストリームと前記出力ストリームのうちの少なくとも一方に加えるステップと、
を更に含む、請求項２０に記載の方法。 storing a portion of at least one of the diluted stream and the concentrated stream of the liquid desiccant;
determining that the water absorbed from the air is not equal to the water in the dilute stream, and accordingly adding the stored portion to at least one of the concentrate stream and the output stream; ,
21. The method of claim 20, further comprising: 前記レドックスシャトルループからの流体の一部を貯蔵するステップと、
前記流体の一部を使用して、電気透析バッテリーを介して電気を生成するステップと、
を更に含む、請求項２０に記載の方法。 storing a portion of the fluid from the redox shuttle loop;
using a portion of said fluid to generate electricity via an electrodialysis battery;
21. The method of claim 20, further comprising:
JP2021527145A 2018-11-26 2019-11-25 Electrodialysis liquid desiccant dehumidification system Pending JP2022507711A (en)

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US16/200,376 US11117090B2 (en) 2018-11-26 2018-11-26 Electrodialytic liquid desiccant dehumidifying system
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