Safe H‑DRI

PRO­JECT TIME­LINE:

1 Octo­ber 2024 – 31 March 2028

Con­sor­ti­um: 20 part­ners from 7 count­ries

Grand agree­ment ID: 101150482

Find more: https://www.k1-met.com/en/non_comet/safe_h_dri

Safe H‑DRI

Recy­cling scrap alo­ne can­not meet the gro­wing steel demand, espe­ci­al­ly for high-tech gra­des with strict qua­li­ty requi­re­ments. Pri­ma­ry steel pro­duc­tion will the­r­e­fo­re remain essen­ti­al — but it must decar­bo­ni­se. One pro­mi­sing pathway is the increased use of Direct Redu­ced Iron (DRI) as feedstock for Elec­tric Arc Fur­naces (EAF). By com­bi­ning DRI with scrap, impu­ri­ties can be diluted and steel qua­li­ty main­tai­ned.

The future of decar­bo­nis­ed steel­ma­king lies in pro­du­cing hydro­gen-based DRI (H‑DRI), which replaces natu­ral gas with hydro­gen (and poten­ti­al­ly ammo­nia as a hydro­gen car­ri­er) in the direct reduc­tion pro­cess. While this enables a signi­fi­cant reduc­tion in CO₂ emis­si­ons, it also intro­du­ces new chal­lenges. Most available iron ores are of insuf­fi­ci­ent qua­li­ty for DRI pro­duc­tion, and the use of low-gra­de ores or recy­cled fines can affect pro­duct pro­per­ties, metal­li­sa­ti­on, and down­stream pro­cess per­for­mance.

Bey­ond pro­duc­tion, safe­ty and logi­stics are cri­ti­cal issues. H‑DRI is high­ly reac­ti­ve: it can reoxi­dise, self-heat, and react with humi­di­ty or sea­wa­ter, releasing hydro­gen and crea­ting explo­si­on risks. Inci­dents in the past have shown the seve­ri­ty of such hazards, inclu­ding the loss of enti­re freight ships. With inter­na­tio­nal trade of H‑DRI expec­ted to grow, ensu­ring safe sto­rage, trans­port, and hand­ling is vital.

Objec­ti­ves of Safe H‑DRI

The pro­ject inves­ti­ga­tes both tech­ni­cal fea­si­bi­li­ty and safe­ty aspects of H‑DRI, focu­sing on:

  • Deve­lo­ping safe logi­stic con­cepts for loa­ding, trans­port, unloa­ding, and sto­rage.
  • Expan­ding raw mate­ri­al use by inte­gra­ting low-gra­de ores and recy­cled mate­ri­als.
  • Stu­dy­ing reoxi­da­ti­on beha­viour under rea­li­stic sto­rage and trans­port con­di­ti­ons (humi­di­ty, sea­wa­ter, ele­va­ted tem­pe­ra­tu­re).
  • Ana­ly­sing crack and fines for­ma­ti­on during hand­ling and explo­ring reu­se opti­ons.
  • Cor­re­la­ting H‑DRI qua­li­ty para­me­ters (metal­li­sa­ti­on, gang­ue con­tent, par­tic­le size) with risks and hazards.
  • Rese­ar­ching pas­si­v­a­ti­on methods to pre­vent reoxi­da­ti­on, self-hea­ting, and explo­si­on risks, while asses­sing their impact on pro­duct qua­li­ty.

By addres­sing the­se issues, Safe H‑DRI sup­ports the EU’s Green Deal and RFCS objec­ti­ves. The pro­ject con­tri­bu­tes to the deve­lo­p­ment of clean steel breakth­rough tech­no­lo­gies, updated safe­ty gui­de­lines, and sus­tainable logi­stics for the lar­ge-sca­le intro­duc­tion of H‑DRI into a com­pe­ti­ti­ve and resour­ce-effi­ci­ent Euro­pean eco­no­my.

The pro­ject has recei­ved fun­ding from the Euro­pean Union’s RFCS Call for pro­po­sal 2023, under Grant Agree­ment 101150482