método para separar gás de alto forno

摘要

A method for separating a blast furnace gas includes the steps of: producing oxygen-enriched air having an oxygen concentration of at least 25 vol%, blowing the oxygen-enriched air into a blast furnace through a tuyere provided in a lower part of the blast furnace, and generating a reformed blast furnace gas by separating and removing carbon dioxide and nitrogen in a blast furnace gas discharged from a blast furnace top.