On September 12, Longji Hydrogen Energy Technology Co., Ltd. (Hereinafter referred to as Longji Hydrogen Energy) released a new generation of alkaline electrolytic water hydrogen production equipment ALK G series products (hereinafter referred to as G series products). From the new high energy efficiency to the new high unit yield, Longji Hydrogen Energy has overcome the technical challenges of large-scale electrolyzers, continuously explored the unit cost of hydrogen production (LCOH), found the breakdown point of initial investment cost (CAPEX), and taken a solid step in the industrialization process of hydrogen energy equipment in China.
G series products are positioned as large-scale commercial green hydrogen equipment, with hydrogen production capacity of 1200Nm ³/H, 1500Nm ³/H, 2000Nm ³/H and 3000Nm ³/H respectively, firmly occupying the commanding heights of domestic large-scale electrolytic cell technology. While reducing the cost of equipment, it maintains stable product performance and low power consumption, and is suitable for chemical, metallurgical, refining and other industrial fields with large demand for hydrogen. Li Zhenguo, president
of Longji Green Energy, said that under the background of carbon neutrality, the situation of energy development will shift from carbon-based energy to silicon-based energy, and then to hydrogen-based energy. He believes that deep decarbonization in the world is inseparable from the participation of green hydrogen, especially in the fields of energy and chemical industry, iron and steel metallurgy, long-distance transportation and so on. Green hydrogen will be widely used, and technological innovation, market innovation and business model innovation will further promote the development of green hydrogen industry.
The star green hydrogen, gathers greatly but becomes!
G series product is a green hydrogen equipment suitable for large-scale commercialization based on improving the gas production of single tank, and is also the benchmark product of the best LCOH and the lowest CAPEX launched by Longji Hydrogen Energy for the industrial field. In the key project of "Hydrogen Energy Technology" of
the "14th Five-Year Plan" national key research and development plan, it is clearly mentioned that the key technology development and equipment development of high-efficiency and high-power alkaline water electrolyzer with "rated hydrogen production ≥ 3000 Nm ³/H" should be carried out.
"With the great development of energy, large-scale equipment is an inevitable trend." Zhang Cunman, deputy director of the New Energy Vehicle Engineering Center of Tongji University, said that large-scale can drive large-scale cost reduction and achieve larger-scale gas production. He said, "Where does the source and strength come from?"? It is undoubtedly a technological innovation.
Longji Hydrogen Energy has not only conquered the technology research and development of large-scale electrolyzers, but also applied it to hydrogen-rich smelting. This technological change of "replacing carbon with hydrogen" will reduce coke ratio by at least 10% , reduce carbon dioxide emissions by 10% , and increase iron production by 13% . The effect of energy saving and carbon reduction is remarkable. At the event site, Longji Hydrogen Energy and Xingguo Foundry signed the strategic cooperation of hydrogen metallurgy green hydrogen equipment and the purchase and sale agreement of 3000Nm ³/H electrolyzer. The two sides will work together to tackle key problems and promote the development and application of relevant complete sets of technologies and equipment.
Breakdown CAPEX, continuous exploration LCOHLCOH
is composed of CAPEX and OPEX, low power consumption products to solve the problem of OPEX, and single tank large-scale, can effectively reduce CAPEX. According to the research and development test
of Longji Hydrogen Energy, compared with two 1000Nm ³/H electrolyzers, one 2000Nm ³/H electrolyzer can save 30% of the floor area and 20% of the weight, and the raw material steel for manufacturing electrolyzers can be reduced by 9.4 tons, which is equivalent to reducing 14 tons of carbon emissions. Converted to the cost per unit, CAPEX can be reduced by about 20%.
Taking the photovoltaic power generation hydrogen production project in western China with an annual output of 20,000 tons of green hydrogen as an example, about 52 electrolytic cells of 1,000 Nm ³/H are needed, the power consumption is 4.3 kWh/Nm ³, and the equipment utilization rate is 4,300 hours/year. Assuming that the electricity price is 0.2 yuan/kWh, the LCOH can be reduced by 4.68% by replacing the 52 1000Nm ³/H electrolyzers with 26 2000Nm ³/H electrolyzers.
At present, the green hydrogen market presses the development acceleration key, which plays an important role in promoting the rapid development of domestic hydrogen energy equipment. Wang Xianmin, Director of Hydrogen Energy Business and Director of Hydrogen Energy Industry Center of Jilin Electric Power Co., Ltd., said that the development trend of hydrogen production equipment by electrolysis of water is large-scale installation, large-scale single tank and intelligent system. It is believed that Longji Hydrogen Energy will promote cost reduction and efficiency enhancement through technological innovation and promote the rapid and high-quality development of the global hydrogen energy industry.
According to Faraday's law, the amount of hydrogen produced by electrolyzers is proportional to the current density, electrolysis area and the number of cells. Ma Jun, president of Longji Hydrogen Energy, said that G series products maintain product performance and low power consumption by using innovative materials, while optimizing the structural design.
Recognizing the core direction, Longji Hydrogen Energy Research and Development Team has concentrated on overcoming a series of technical problems.
The first problem is how to find a material solution that takes into account current density, cost and energy efficiency? Longji hydrogen energy innovative material technology can maintain low system power consumption when the current density is increased by 20%, thus ensuring the high energy efficiency of large electrolyzers.
The second problem is how to deal with the structural changes brought about by the increase of the volume and weight of the electrolyzer? Longji Hydrogen Energy optimizes the lye flow channel by means of electrolyzer flow field simulation to ensure uniform flow field and stable electrolyzer performance. At the same time, the core components and structures are designed to adapt to the large electrolytic cell to ensure safety and reliability.
In response, Ma Lincong, director of the National Committee for Standardization of Hydrogen Energy Technology, said that hydrogen energy ushered in an upsurge of development, and new achievements emerged in technological breakthroughs in the whole hydrogen energy industry chain. He said, "There is a development process for the standardized development plan of hydrogen energy industry.". After the serialization, scale, large-scale and industrialization of Longji hydrogen energy electrolyzer, it can in turn promote the establishment of technical standards.
With the continuous prosperity of the green hydrogen industry and the successful demonstration operation of large-scale green hydrogen projects, large-scale alkaline electrolytic water hydrogen production technology has started the commercialization process, and the green hydrogen industry chain has become increasingly mature.
At present, the large-scale alkaline water electrolyzer produced by Longji Hydrogen Energy has entered the leading position in the industry in technology, and the concept of safety and reliability is rooted in the gene of product design. To this end, Longji Hydrogen Energy has launched three major escort magic weapons.
Safe and reliable: comply with industry standards and carry out intrinsic safety design; safety interlocking system can monitor temperature and pressure in real time and trigger automatic alarm; safety instrumented system can carry out risk analysis and hidden danger identification of potential process, fully meeting the system safety requirements of all regions in the world.
Intelligent manufacturing: the world's leading automated production line, key core components are self-designed, self-produced, 100% independent intellectual property rights, customized production of electrolytic cell products according to customer needs.
Intelligent operation and maintenance: independently develop and design the intelligent operation and maintenance platform, automatically monitor the operation status of the electrolytic cell, timely feedback of key parameters and timely error reporting; self-adapt to the fluctuation of new energy, realize self-start and stop, self-charge nitrogen, convenient and easy operation and maintenance.
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