Chinalco cracks world-class problems in aluminum reduction cells

Yesterday, China Aluminum Corporation announced that after many years of joint research, the "new structural aluminum electrolyzer technology" that is still unbreakable by many multinational aluminum companies and professional scientific research institutions in the world has been successfully solved by China Aluminum Corporation.

It is reported that the new structural electrolytic cell developed by China Aluminum has a novel and advanced design. It is the world's first 160kA-class new structural electrolytic cell that can successfully realize the flow and collection of molten aluminum. The cathode surface of the novel structure has realized zero-aluminum level and high-efficiency operation, greatly reduced the pole pitch and slot voltage, and its electrolysis process was less affected by the magnetic field, reducing the design difficulty of the magnetic field of the electrolytic cell.

China National Aluminum Deputy General Manager Yu Hong said that the technology has broken through the design and operation mode of the traditional large-scale aluminum electrolytic cell, and improved the utilization of energy by transforming the aluminum electrolytic cell from a heat-dissipating type to a heat-preserving and energy-saving type, achieving a significant degree of aluminum electrolysis. Energy-saving, stable and efficient. The new structural electrolyzer technology can increase the power utilization rate of the aluminum electrolysis process by 5% to 7%, the direct current power consumption of less than 12,000 kilowatt-hours, and the aluminum energy saving of 1300 kilowatt-hours or more. If applied in an all-round way, China Aluminum Corporation can achieve annual electricity savings of 5.2 billion kilowatt-hours. The national aluminum electrolysis industry can save 17.5 billion kilowatt-hours of electricity annually, and the energy conservation benefit is very significant.

At the same time, the new structure of the electrolyzer can achieve a true zero-anode effect, basically do not emit strong greenhouse gases (polyfluorocarbons). Through comprehensive application, Aluminum Corporation of China can achieve annual emission reductions of 4 million tons of equivalent greenhouse gases, and the annual emission reduction of the national aluminum electrolysis industry can reach 13 million tons or more, resulting in huge environmental benefits.

Chinalco will develop and vigorously promote the application of new structural electrolytic cell technology to achieve significant energy saving and emission reduction of aluminum electrolytic production of the company, reduce costs, and increase the market competitiveness of electrolytic aluminum.

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