浦项制铁氢基炼铁工艺 HyREX® 的最新进展.pdf

1、Dr.Myoung-Gyun ShinPOSCODecember 3,2025Update on the development of POSCOs hydrogen-basedIronmaking process,HyREXPOSCOs Integrated Hydrogen Steelmaking1/22Direct Use of Sinter FeedHot metal and Slag similar to BF Use of existing steelmaking facilitiesSinter Feed70%176541,650 Mt(2020)Sinter Feed(Fe 5

2、862%)DR Pellet(Fe67%):for Shaft FurnaceSeaborne Iron Ore(Source:Fastmarkets,2020)H2-FBRESFElectricityConventional SteelmakingHydrogenBOFContinuousCastingSecondary RefiningKRHigh Fe yield(99%)Extensive experience in large-scale facility operationsNo restriction on highgrade steel manufacturingSunk co

3、sts savings in existing ISPsHyREXProcess using 100%Hydrogen2/22Multi-stage Fluidized Bed ReactorImpurityRemovalHydrogenHydrogen HeatingSinter feedHot Metal to MeltshopSlag to GraluatorFe2O3+3H22Fe+3H2OHot DRIH2RecyclingElectricalSmelting Furnace(ESF)FINEX fluidized bed core technology secured(scale-

4、up from 30,000 to 2,500,000 tons/year)Worlds largest ESF operation&management know-how(135MVA 40 x14m to 1.2Mt/y Melting Capacity of DRI)3/22FINEXFluidized Bed TechnologyFine ore is reduced passing through the multi-stage turbulent fluidized beds in seriesOxygen InjectionHeat compensationRiserEasy d

5、ischarge rate controlTapered shape reactorHomogeneous mixingOverflow standpipe Aerated solid gravitational flowPneumatic ConveyingEasy handling&maintenanceDistributorNo Solid stagnant near the wallScaling-UpDevelopment of HyREXProcess FBR Redesign4/22HeatR4R3R2R1FineOreDRIHot Gas(H2)Countermeasures

6、for high reduction degree Raw material control Anti-sticking&plating measureRe-design of multi-staged fluidized beds Target reduction degree Specific gas consumption Temperature profile Residence timeModifying reactor design criteria Adjustment on fluidizing conditionProcess and plant engineering He