WATER REMOVING DEVICE, WATER REMOVING COMPRESSION SYSTEM, CO2 RECOVERY SYSTEM, AND METHOD FOR CONTROLLING WATER REMOVING DEVICE

A dehydration device (60) removes moisture from a process gas compressed by a compressor, and includes a contactor (62) that causes a dehydration solvent to absorb the moisture, a still column (72) that separates the moisture from the dehydration solvent, a carrying line that carries the dehydration...

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Bibliographische Detailangaben
Hauptverfasser:	INUI, Masayuki, MIYAMOTO, Osamu, YONEKAWA, Takahito
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION TRANSPORTING
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Beschreibung
Zusammenfassung:	A dehydration device (60) removes moisture from a process gas compressed by a compressor, and includes a contactor (62) that causes a dehydration solvent to absorb the moisture, a still column (72) that separates the moisture from the dehydration solvent, a carrying line that carries the dehydration solvent from the contactor (62) to the still column (72), a dehydration solvent conveying pump (73), a bypass line that couples the carrying line upstream and downstream of the dehydration solvent conveying pump (73), a first on-off valve (75) disposed in the bypass line, and a control device (90). In a case where the pressure detected by a pressure sensor (69) is lower than a first predetermined pressure, the control device (90) closes the first on-off valve (75) and causes the conveying pump (73) to operate, whereas in a case where the pressure detected by the pressure sensor (69) is equal to or higher than the first predetermined pressure, the control device (90) opens the first on-off valve (75) and causes the conveying pump (73) to stop.