Hydrogen Energy

Alkaline Water Electrolysis Hydrogen Production System

The system adopts a modular design, with core components including the electrolyzer, gas–liquid processing system (integrated framework), water–alkali circulation unit (water pump/alkali tank), electrical control system (control cabinet/rectifier system), and safety components (such as flame arrestors). Its compact structure ensures easy installation and maintenance.


The working principle is based on immersed electrolysis technology: in the electrolyte, electrode pairs separated by an ion-exchange membrane decompose water molecules under direct current. The cathode generates high-purity hydrogen, while the anode produces oxygen. The electrochemical reactions are as follows:

  • Cathode: 2H₂O + 2e⁻→H₂↑+ 2OH⁻
  • Anode: 2OH⁻–2e⁻→H₂O +½O₂↑
  • Overall reaction: 2H₂O→2H₂↑+ O₂↑

The system adopts a modular design, with core components including the electrolyzer, gas–liquid processing system (integrated framework), water–alkali circulation unit (water pump/alkali tank), electrical control system (control cabinet/rectifier system), and safety components (such as flame arrestors). Its compact structure ensures easy installation and maintenance.


The working principle is based on immersed electrolysis technology: in the electrolyte, electrode pairs separated by an ion-exchange membrane decompose water molecules under direct current. The cathode generates high-purity hydrogen, while the anode produces oxygen. The electrochemical reactions are as follows:

  • Cathode: 2H₂O + 2e⁻→H₂↑+ 2OH⁻
  • Anode: 2OH⁻–2e⁻→H₂O +½O₂↑
  • Overall reaction: 2H₂O→2H₂↑+ O₂↑

Application Scope

Lirun Technology's alkaline water electrolysis hydrogen production system adopts new-type electrodes and composite diaphragm materials, with a modular integrated design, delivering system compactness. This product line features a design hydrogen purity of up to 99.99%, a design single-cell capacity of up to 1000 Nm³/h, and a design service life of up to 15 years. It is suitable for large-scale centralized hydrogen production applications, including integrated hydrogen production and refueling stations, as well as renewable energy storage and peak-shaving scenarios (wind and solar power), providing a solution for the development of hydrogen energy.

LRH-A Series Alkaline Water Electrolysis Systems

LRH-A300 Standard Model

Hydrogen capacity: 300 Nm³/h

Rated power: 1.5 MW

Operating pressure: 1.6 MPa

LRH-A500 Enhanced Model

Hydrogen capacity: 500 Nm³/h

Rated power: 2.5 MW

Operating pressure: 1.6 MPa

LRH-A1000 Industrial Model

Hydrogen capacity: 1000 Nm³/h

Rated power: 5 MW

Operating pressure: 1.6 MPa

Customized Solutions

Tailored to specific customer requirements

Flexible adaptation to special application scenarios