JP7371169B2 - アンモニアガスをその中に溶解した脱イオン水を含む導電性液体を生成するためのシステム及び方法 - Google Patents
アンモニアガスをその中に溶解した脱イオン水を含む導電性液体を生成するためのシステム及び方法 Download PDFInfo
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- JP7371169B2 JP7371169B2 JP2022092242A JP2022092242A JP7371169B2 JP 7371169 B2 JP7371169 B2 JP 7371169B2 JP 2022092242 A JP2022092242 A JP 2022092242A JP 2022092242 A JP2022092242 A JP 2022092242A JP 7371169 B2 JP7371169 B2 JP 7371169B2
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- B08B3/08—Cleaning involving contact with liquid the liquid having chemical or dissolving effect
Description
いくつかの実施形態において、混合ガス出口は脱イオン水供給源と流体連通している。いくつかの実施形態において、接触器の少なくとも1つの入口は、脱イオン水供給源と流体連通している液体入口と、混合ガス出口と流体連通しているガス入口とを含む。いくつかの実施形態において、ガス入口は、実質的に接触器での平均液体レベルに設置されている、接触器内の出口オリフィスを含む。
NH3+H2O<->NH4 ++OH- …数1
この解離は、水温の関数である塩基解離定数Kbに支配されている。Kbの温度依存性は特徴付けられており、制御モジュール125に格納することができる所定の量である。制御モジュール125によって行われる計算のために、NH4 +及びOH-の濃度は同一であると近似することができる。次式は、測定された水温(例えばセンサ120bによって測定された温度)における解離定数Kbに基づくNH3の所望濃度「cNH3」を提供する。
сNH3=(cNH4 +Λ2+Kb(T)*сNH4 +)/Kb(T) …数2
NH3ガスの所望の流量は、濃度cNH3及び、センサ120aによって測定された脱イオン化水の流速から計算することができる。
FNH3=FH2O*cNH3 …数3
NH4 +濃度及びOH-濃度は、温度依存性の比等量導電率(ΛNH4(T)+ΛOH-(T))に基づくκに等しい導電率をもたらす。比等量導電率の温度依存性は特徴付けられており、制御モジュール125に格納されることができる所定の量である。このように、コントローラは、接触器115からの液体出力の測定温度TからΛNH4(T)+ΛOH-(T)を算出することができる。コントローラは、次式:
κ=(ΛNH4(T)+ΛOH-(T))*cNH4 + …数4
で与えられる所定の導電率設定値κからcNH4 +を算出する。
システム200は、移送ガスとNH3ガスとを混合するためのガスボックスすなわちガス混合装置C1を含む。ガス混合装置C1は、NH3ガスを脱イオン化水に溶解するために用いられる接触器B1と流体連通している。ガス混合装置C1は、NH3ガスを受け取るための第1の入口及び、移送ガスを受け取るための第2の入口を含む。
システム400は、移送ガスとNH3ガスとを混合するためのガスボックスすなわちガス混合装置C1を含む。ガス混合装置C1は、NH3ガスを脱イオン化水に溶解するために用いられる接触器B1と流体連通している。ガス混合装置C1は、NH3ガスを受け取るための第1の入口及び、移送ガスを受け取るための第2の入口を含む。
Claims (27)
- アンモニアガスを脱イオン化水に溶解するシステムにおいて、
脱イオン水供給源と、
アンモニアガスを供給するための第1のガス供給源と流体連通している第1の入口と、移送ガスを供給するための第2のガス供給源と流体連通している第2の入口と、前記アンモニアガス及び前記移送ガスを含むガス混合物を出すための混合ガス出口と、を備えるガス混合装置と、
接触器の少なくとも1つの入口を介して前記脱イオン水供給源及び前記混合ガス出口と流体連通している前記接触器であって、アンモニアガスをその中に溶解した脱イオン水を生成する前記接触器と、
前記脱イオン水の流速を測定するための、前記接触器の前記少なくとも1つの入口と流体連通しているセンサと、
前記センサと通信するコントローラであって、前記センサによって測定される前記脱イオン水の前記流速に基づいて、前記第2のガス供給源からの前記移送ガスの出力の圧力を調整するように構成されている前記コントローラと
を備える、システム。 - 前記混合ガス出口が、前記接触器の前記少なくとも1つの入口の上流で前記脱イオン水供給源と流体連通していることを特徴とする、請求項1に記載のシステム。
- 前記接触器の前記少なくとも1つの入口の上流に設置されている静的混合装置であって、前記ガス混合装置からのガス混合物出力と前記脱イオン水供給源からの脱イオン水出力とを混合するための前記静的混合装置をさらに含む、請求項2に記載のシステム。
- 前記接触器が充填カラム型又は充填塔型接触器であることを特徴とする、請求項1に記載のシステム。
- 前記接触器は、更に、
前記接触器からのオフガスを排出するためのガス出口と、
アンモニアガスをその中に溶解した前記脱イオン水を出すための液体出口と、を含む、少なくとも1つの出口を備える、ことを特徴とする、請求項1に記載のシステム。 - 前記接触器の上部及び下部と流体連通している液面レベルセンサをさらに含む、請求項1に記載のシステム。
- 前記接触器と流体連通している圧力センサをさらに含む、請求項1に記載のシステム。
- 前記脱イオン水の温度を測定するための前記接触器の前記少なくとも1つの入口及び、
アンモニアガスをその中に溶解した前記脱イオン水の温度を測定するための前記接触器の少なくとも1つの出口、
のうちの1つと流体連通している温度センサをさらに含む、請求項1に記載のシステム。 - 前記センサ及び前記温度センサと通信するコントローラであって、前記温度センサによって測定される温度、前記センサによって測定される前記脱イオン水の前記流速又は所定の導電率設定値の少なくとも1つに基づいて、前記第1のガス供給源から供給される前記アンモニアガスの流速を設定するように構成されている前記コントローラをさらに含む、請求項8に記載のシステム。
- 前記ガス混合装置が、さらに、前記ガス混合装置の第1の入口と流体連通している少なくとも1つの流量制御装置を含むことを特徴とする、請求項1に記載のシステム。
- 前記ガス混合装置が、さらに、前記第2の入口と連通するガス注入器であって、前記ガス混合装置の前記少なくとも1つの流量制御装置の出口の開口部への前記移送ガスの流量を管理するために前記ガス混合装置内に設置されている前記ガス注入器を含むことを特徴とする、請求項10に記載のシステム。
- 前記接触器の少なくとも1つの液体出口と流体連通しているポンプをさらに含む、請求項1に記載のシステム。
- 前記混合ガス出口が、前記脱イオン水供給源と流体連通していることを特徴とする、請求項1に記載のシステム。
- 前記接触器の前記少なくとも1つの入口が、
前記脱イオン水供給源と流体連通している液体入口と、
前記混合ガス出口と流体連通しているガス入口と、を含むことを特徴とする請求項1に記載のシステム。 - 前記ガス入口が、実質的に前記接触器での平均液体レベルに設置されている、前記接触器内の出口オリフィスを含むことを特徴とする請求項14に記載のシステム。
- 脱イオン水にアンモニアガスを溶解する方法において、
ガス混合装置の第1の入口にアンモニアガスを供給する工程と、
前記ガス混合装置の第2の入口に移送ガスを供給する工程と、
前記ガス混合装置からの前記アンモニアガス及び前記移送ガスを含むガス混合物ならびに脱イオン水を接触器に供給する工程と、
前記脱イオン水の流速を測定する工程と、
前記接触器から、アンモニアガスをその中に溶解した前記脱イオン水を流出させる工程と、
前記脱イオン水の前記流速に基づいて前記移送ガスの圧力を調整する工程と
を備える、方法。 - 前記接触器の上流で、前記ガス混合装置からの前記ガス混合物の出力と前記脱イオン水とを混合する工程をさらに備える、請求項16に記載の方法。
- 前記接触器が、充填カラム型又は充填塔型接触器であることを特徴とする、請求項16に記載の方法。
- 前記接触器のガス出口からオフガスを排出する工程と、
前記接触器の液体出口から、アンモニアガスをその中に溶解した前記脱イオン水を流出させる工程とをさらに備える、請求項16に記載の方法。 - 前記接触器での流体の液面レベルを検知する工程をさらに備える、請求項16に記載の方法。
- 前記接触器での流体の液圧を検知する工程をさらに備える、請求項16に記載の方法。
- (i)前記脱イオン水及び、(ii)アンモニアガスをその中に溶解した前記脱イオン水、のうちの少なくとも1つの温度を検知する工程をさらに備える、請求項16に記載の方法。
- 前記温度、前記脱イオン水の前記流速又は所定の導電率設定値の少なくとも1つに基づいて供給するために、前記アンモニアガスの流速を設定する工程をさらに備える、請求項22に記載の方法。
- 前記ガス混合装置に供給される前記アンモニアガスの流速を少なくとも1つの流量制御装置で制御する工程をさらに備える、請求項16に記載の方法。
- 前記移送ガスを供給することが、前記ガス混合装置の前記少なくとも1つの流量制御装置の出口の開口部への、前記ガス混合装置内の前記移送ガスの流量を管理する工程をさらに備える、請求項24に記載の方法。
- 流出させることが、前記接触器の液体出口を介して、アンモニアガスをその中に溶解した前記脱イオン水を前記接触器からポンプでくみ出す工程をさらに備えることを特徴とする、請求項16に記載の方法。
- 前記接触器に前記ガス混合物を供給する工程が、前記接触器のガス入口に前記ガス混合物を供給する工程をさらに含み、前記ガス入口が、実質的に前記接触器での平均液体レベルに設置されている前記接触器内の出口オリフィスを含んでなることを特徴とする、請求項16に記載の方法。
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TW201821153A (zh) | 2018-06-16 |
TWI764955B (zh) | 2022-05-21 |
CN110168713B (zh) | 2023-08-08 |
KR20190070362A (ko) | 2019-06-20 |
US20180133665A1 (en) | 2018-05-17 |
IL266468B1 (en) | 2023-05-01 |
JP2022122987A (ja) | 2022-08-23 |
KR102447374B1 (ko) | 2022-09-23 |
EP3539149A4 (en) | 2020-04-08 |
US11826713B2 (en) | 2023-11-28 |
EP3539149A1 (en) | 2019-09-18 |
TW202233300A (zh) | 2022-09-01 |
JP7086068B2 (ja) | 2022-06-17 |
US10773221B2 (en) | 2020-09-15 |
KR20220137129A (ko) | 2022-10-11 |
WO2018089658A1 (en) | 2018-05-17 |
IL266468B2 (en) | 2023-09-01 |
US20200391163A1 (en) | 2020-12-17 |
KR102558885B1 (ko) | 2023-07-24 |
CN110168713A (zh) | 2019-08-23 |
EP3539149B1 (en) | 2022-01-05 |
JP2020514012A (ja) | 2020-05-21 |
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