【Major Equipment in the Chemical Equipment Industry】China Huaneng’s first 1200 Nm3/h alkaline electrolyzer was officially delivered in 2022

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On July 12, 2022, the launching ceremony for China Huaneng’s 1200 Nm3/h alkaline electrolyzer products, along with a presentation and promotion event for the achievements related to the gas diffusion layer (GDL), was held at the Huaneng (Tianjin) High-End Intelligent Manufacturing and Innovation Base in Beichen District, Tianjin. This marks a crucial step forward for China Huaneng on the path to developing equipment for water electrolysis to produce hydrogen, as well as key technologies for hydrogen fuel cells. It provides a solid foundation for large-scale production of green hydrogen and for the use of fuel cells in distributed power generation, and it represents a milestone in the development of the hydrogen energy industry. 　　The 1200 Nm3/h electrolyzers and gas diffusion layer products launched this time were independently designed and manufactured by China Huadian, achieving leadership at the international and domestic levels as well as in the industry in terms of various key parameters: major technical indicators such as hydrogen production per unit, electrolysis efficiency, and current density are at the international advanced level. Compared to traditional electrolyzers, the electrolyzers released this time have a current density that is about 30% higher during operation, an overall weight that is nearly 10% lower, and a direct current energy consumption of less than 4.6 kWh per cubic meter of hydrogen produced. At an operating pressure of 1.6 MPa, the rated hydrogen production capacity of the electrolyzer reaches 1200 Nm3/h. The independently developed single-sided welding and double-sided weld formation process represents a first in China. 　　The product performance is at the international advanced level – utilizing an automated roll-to-roll continuous production process, the gas diffusion layer production line developed can produce sheets with a maximum width of 1.2 meters. Its resistance, gas flux, tensile strength and other properties meet or exceed those of similar products both domestically and internationally, enabling it to satisfy the requirements of fuel cells, water electrolysis systems, and flow battery applications for gas diffusion layers. 　　“High power, high efficiency, intelligence, long lifespan, and strong environmental adaptability” — The hydrogen fuel cell distributed power supply systems developed feature a hydrogen-electric efficiency of over 52% and a cogeneration efficiency of over 85%. The entire system features a skid-mounted design, with high degree of system integration and modular structural design. It provides power and combined heat and power services for green buildings, new types of infrastructure, industrial parks, isolated sites, etc., meeting the needs of various application scenarios.