Dekarbonizace při výrobě surového železa

Abstract

For more than 50 years, the steel industry has been under pressure from environmental concerns. The set target of 80% reduction in CO2 emissions can only be achieved with the full participation of the global industrial community. Therefore, decarbonisation presents a number of challenges for steel companies. The main idea to reduce emissions is to replace natural gas with biogas or hydrogen. The possibility of using hydrogen to reduce iron does not raise questions - in a conventional DRI process, which is based on natural gas, hydrogen reduces up to 50% of iron. Direct reduction of iron followed by steel smelting in electric arc furnaces emits 50% less CO2. Since achieving carbon neutrality is only possible through a fundamental change in production technologies and supply chains, this will require significant investments from the industry, comparable to the construction of new facilities.