How a direct reduction plant works - explained in 5 minutes

In this video, we explain how our 100% hydrogen-capable direct reduction plant (DR plant) with two melters works and how it will revolutionize the steel industry. With a production capacity of 2.5 million tons of direct reduced iron (DRI) per year, this technological concept is the first plant combination of its kind in the world. With this new technology, we will produce pig iron using hydrogen instead of carbon in the blast furnace as before. This will enable us to save up to 3.5 million tons of CO2 per year in steel production in the first step. This corresponds to around 2% of emissions in North Rhine-Westphalia.
Our goal is to produce climate-neutral steel by 2045 at the latest. With the new plant, we are replacing a blast furnace and taking a decisive step towards a greener future.
#directreductionplant #steelproduction
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[@polaroid2]

the best i could come across

[@PopMilan84]

I have one question, after OBF and then casting slag and iron into the dedicated iron and slag runners systems, is there a possibility of some % of slag or iron "carry on" into these runners? I mean, is there a possibility that liquids are not separated and some iron can go into the slag runner (or opposite) and in how much would that be in approx. %, in the case of OBF Casthouse? Much appreciated if you find the time to answer me this.

[@andrewma-ib4kz]

In an OBF, there is a possibility of slag carryover into the iron runner or iron carryover into the slag runner, typically ranging from 0.5-2% depending on operational conditions. This can occur due to incomplete separation, flow dynamics, or equipment design. Factors like tapping practices, slag viscosity, furnace conditions, and runner design influence the extent of carryover. To minimise this: optimising tapping processes, monitoring slag chemistry, and using separation devices like skimmers are essential. While some carryover is inevitable, it is usually minimal under well-controlled operations.

[@rahul9904]

Same plant at JSW torangalu

[@ApplyWithCaution]

... from where is the hydrogen obtained? ...

[@ilyesehoualef4137]

If it's a green hydrogen than from water and if it's Gray hydrogen from natural gas

[@ApplyWithCaution]

@ilyesehoualef4137 ... no shit, Sherlock
... but what process produces sufficient hydrogen ... and how much energy does it take?

[@ilyesehoualef4137]

@@ApplyWithCaution for green hydrogen we use the technical separation of electrolyzer and to use this technique we should provide sufficient electricity from renewable energy ( if the electricity is resourced from fossil energy than it's no longer green hydrogen)
And for natural gaz we use reformer (high temperature) to have carbonic monoxide and hydrogen from CH4