3B-O2-1555 PDF
Reaction Rate between H2O–D2 Gas and Molten CaO–FeOx–SiO2 Oxides at 1723–1873K
Utilization of unutilized thermal energy generated from steelmaking process is crucial for development of sustainable steel production. The present study has focused on the conversion of waste thermal and chemical energy contained in a by-product of steel, namely steelmaking slag, to H2 gas which is useful for various purposes, and thus the reaction rate between H2O–H2 gas and molten CaO–FeOx–SiO2 oxide has been measured at temperature range from 1723 K to 1873 K by using the isotope exchange technique with D2 gas. The measurements have revealed the validity of this experimental method to measure the reaction rate at present experimental conditions. Effects of temperature and composition of molten oxide on the reaction rate have been measured.