The abstract of the reference given says "With nuclear heat, the fossil fuel--re-formed to a suitable reductant--is confined to the chemical role and not used as a source of heat."
So, still using coal.
In contrast to more modern methods that avoid coal altogether, by using hydrogen as the reducer, or by direct electrolysis of molten ore.
Also, this is misleading:-
> Did you know you can use the heat produced in Nuclear power reactors directly for things like turning Iron Ore to steel. No natural gas or conversion to Electricity required: https://royalsocietypublishing.org/doi/abs/10.1098/rspa.1974... .
The abstract of the reference given says "With nuclear heat, the fossil fuel--re-formed to a suitable reductant--is confined to the chemical role and not used as a source of heat."
So, still using coal.
In contrast to more modern methods that avoid coal altogether, by using hydrogen as the reducer, or by direct electrolysis of molten ore.