Process of direct reduction of iron ores by means of synthesis gas produced with catalytic partial oxidation

Abstract

A catalytic partial oxidation technology (CPO) is advantageously utilized in the direct reduction (DR) of iron ores for improving its energy efficiency and particularly for reducing the greenhouse gas (GHG) emissions. This CPO technology can utilize several gaseous hydrocarbon sources and allows the recycling of all the Direct Reduction Gas (DRG). The process also allows avoiding fire pre-heaters and heaters and allows the confinement of the CO2 molecules inside the process stream from which they can be advantageously captured. The process also includes the use of O2, H2 and CO streams produced with electrolytic means for increasing the electrification of the DR process and for allowing further improvements of its sustainability. The CPO technology for producing syngas can also use the Blast Furnace Gases (BFG) and the Coke Oven Gases (COG) produced in the Iron Ores cycles utilizing the Blast Furnaces (BF), and this sustains the possibility of system integration between DR and BF processes.

Dependencies are inferred from the claim text.