Direct Reduction of Siderite Ore Combined with Catalytic CO/CO<sub>2</sub> Hydrogenation to Methane and Methanol: A Technology Concept
Sascha Kleiber, Astrid Loder, Matthäus Siebenhofer, Andreas Böhm, Susanne Lux
Abstract
Abstract Industrial CO 2 emission mitigation necessitates holistic technology concepts; especially in high‐emission industrial sectors like the iron and steel industry. A novel direct reduction technology with hydrogen reduces CO 2 emissions in iron production from siderite ore by more than 60 %. Subsequent valorization of the process gas, consisting of unconverted hydrogen, carbon monoxide, and CO 2 , by catalytic hydrogenation to methane and methanol completes the technology concept. This route gives access to CO 2 emission‐lean iron production from siderite ore, fossil‐free methane and methanol synthesis, and thus, improved energy density of the energy carrier hydrogen.