R.I. 09/24. TECHNICAL-SCIENTIFIC REPORT OF THE IMPLEMENTING ENTITY. PRIN2022PNRR "real-green-steels"_Q1

As concern the operational unit 1 (CNR), the activity carried out during the BMs 1-2 regarded: 1. Analysis of the more recent scientific Literature has been carried out. About 200 studies at least have been recognized in the field of the direct reduction of iron ore with hydrogen (M1, T.1.1). 2. A general overview of the current state of art of Hydrogen technologies applied to steel-making through Iron ores reduction has been performed. In particular, specific technologies for hydrogen generation through electrolysis and the current state of their use in real pilots was investigated (M3, T.3.1) 3. Four laboratory samples of minerals have been synthesized, necessary for the realization of both kinetic and modelling studies with “model compounds”, preparatory activities at the planned studies of process and engineering that will be carried out in the project (M5, T5.1). 4. The chemical composition of the four synthetic mineral were ascertained by spectroscopic study carried out with X-ray radiations (M5, T5.1). 5. The texture of the synthetic mineral has been investigated via adsorption isotherm studies with nitrogen gas (M5, T5.1). 6. Characterization studies carried out with the “model compounds by the means of the crystal-chemical structure. The calculation of the average diameter of iron crystallites on the synthetic minerals via Sherrer’s equation, according to reflection peak-width enlargement. (M5, T5.1). 7. The realization of a TPR study with the sample of synthetic mineral with approximately 99% wt. of iron oxide (M5, T5.1). As concern the operational unit 2 (Università del SALENTO), the activity carried out during the BM 1 regarded the analysis of the more recent Scientific Literature on the topic (M1, T.1.1).