System Analysis of Iron Oxide Reduction in Water Gas Atmosphere in the Presence of Carbon

Abstract

Parameters of equilibria realizing in iron oxide reduction in water gas atmosphere (СО–СО2–Н2–Н2О) in the presence of carbon are calculated. For graphical interpretation of results a space diagram is first constructed, which is a combination of three-phase equilibria surfaces and four-phase equilibria lines, whose point of intersection determines the parameters of nonvariant five-phase equilibrium. Water gas compositions in equilibrium with Fe3O4–С, Fe3O4–FeO–С, FeO–С, FeO–Fe–С, Fe–С and Fe3O4–FeO–Fe–С mixtures are defined. A graphical method to find the possible water gas compositions in equilibrium with these mixtures is proposed.