Producing steel, comprises reducing iron ore with hydrogen, processing the obtained intermediate product from reduced iron ore and optionally metallurgically further processing the impurities

摘要

Producing steel, comprises reducing iron ore with hydrogen, processing the obtained intermediate product from reduced iron ore and optionally metallurgically further processing the impurities. The hydrogen is generated by electrolysis of water. The electrical energy required for the electrolysis is renewable energy, which is obtained from hydropower, wind power and/or photovoltaic or other renewable energy forms. The hydrogen and/or the intermediate product are generated for the instantaneous requirement, when sufficient renewably generated electrical energy is present. Producing steel, comprises reducing iron ore with hydrogen, processing the obtained intermediate product from reduced iron ore and optionally metallurgically further processing the impurities. The hydrogen is generated by electrolysis of water. The electrical energy required for the electrolysis is renewable energy, which is obtained from hydropower, wind power and/or photovoltaic or other renewable energy forms. The hydrogen and/or the intermediate product are generated for the instantaneous requirement, when sufficient renewably generated electrical energy is present. The inactive intermediate product is stored until its requirement or use for storing the regenerative energy. An independent claim is also included for storing discontinuously generated energy, where (a) the discontinuously generated energy is supplied to the process, and the storable intermediate product is produced from a starting material, and (b) the storable intermediate product is stored until it is required for the production of a final product and retrieved.