公开(公告)号：US20240218543A1

公开(公告)日：2024-07-04

申请号：US18543563

申请日：2023-12-18

申请人： AcroLabs Inc.

发明人： Ho Suk KIM ,  Hyung Mok CHO

IPC分类号： C25B15/08 ,  B01D53/04 ,  B01D53/26 ,  C25B1/04 ,  C25B15/021 ,  C25B15/029

CPC分类号： C25B15/085 ,  B01D53/0438 ,  B01D53/0446 ,  B01D53/261 ,  C25B1/04 ,  C25B15/021 ,  C25B15/029 ,  B01D2256/16 ,  B01D2257/80 ,  B01D2259/40086 ,  B01D2259/40098 ,  B01D2259/402

摘要： A method of operating a water electrolysis system including a water electrolysis stack discharging moisture-containing hydrogen gas, a plurality of dehumidification devices including a regenerative adsorbent removing moisture from the moisture-containing hydrogen gas discharged from the water electrolysis stack, temperature and pressure sensors detecting an internal temperature and pressure of each of the plurality of dehumidification devices, and a heating device heating the plurality of dehumidification devices, and in which the plurality of dehumidification devices are connected in parallel to a hydrogen gas supply pipe connecting the water electrolysis stack and the plurality of dehumidification devices and a hydrogen gas discharge pipe discharging moisture-reduced hydrogen gas from the plurality of dehumidification devices and are alternately used to remove moisture from the moisture-containing hydrogen gas, and the hydrogen gas supply pipe and the hydrogen gas discharge pipe are provided with a plurality of inlet valves and outlet valves.

公开(公告)号：US20240035175A1

公开(公告)日：2024-02-01

申请号：US18277326

申请日：2021-06-04

申请人： ACROLABS INC.

发明人： Ho Suk KIM ,  Hye Young SHIN

IPC分类号： C25B9/65 ,  C25B9/77 ,  C25B1/04 ,  C25B15/027 ,  C25B9/67 ,  C25B15/021 ,  C25B15/08 ,  C25B15/029

CPC分类号： C25B9/65 ,  C25B9/77 ,  C25B1/04 ,  C25B15/027 ,  C25B9/67 ,  C25B15/021 ,  C25B15/085 ,  C25B15/029 ,  C25B15/087

摘要： Disclosed is a water electrolysis system that improves durability by preventing performance degradation inside a water electrolysis stack. According to the present invention, in order to reduce electrode degradation in a water electrolysis unit cell, which can frequently occur in the starting and stopping stages of a process for producing hydrogen from the water electrolysis system, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is heated while being circulated in the water electrolysis stack in the starting stage of the water electrolysis system. Also, when performing a stopping process, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is cooled while being circulated in the water electrolysis stack. Accordingly, it is possible to improve durability by preventing performance degradation inside the water electrolysis stack.

公开(公告)号：US20240263321A1

公开(公告)日：2024-08-08

申请号：US18631990

申请日：2024-04-10

申请人： Acrolabs Inc.

发明人： Ho Suk KIM ,  Hye Young Shin

IPC分类号： C25B9/65 ,  C25B1/04 ,  C25B9/67 ,  C25B9/77 ,  C25B15/021 ,  C25B15/027 ,  C25B15/029 ,  C25B15/08

CPC分类号： C25B9/65 ,  C25B1/04 ,  C25B9/67 ,  C25B9/77 ,  C25B15/021 ,  C25B15/027 ,  C25B15/029 ,  C25B15/085 ,  C25B15/087

摘要： Disclosed is a water electrolysis system that improves durability by preventing performance degradation inside a water electrolysis stack. According to the present invention, in order to reduce electrode degradation in a water electrolysis unit cell, which can frequently occur in the starting and stopping stages of a process for producing hydrogen from the water electrolysis system, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is heated while being circulated in the water electrolysis stack in the starting stage of the water electrolysis system. Also, when performing a stopping process, power of a constant current is supplied to the water electrolysis stack and electrolyte circulating water is cooled while being circulated in the water electrolysis stack. Accordingly, it is possible to improve durability by preventing performance degradation inside the water electrolysis stack.