Direct reduction with hydrogen consumes 15 times more electricity than coking, according to one estimate.

据一项估计，用氢气直接还原比炼焦消耗的电力多 15 倍。

Heating limestone generates about 60% of the sector's carbon emissions and a replacement technology, such as direct reduction in steelmaking, is lacking.

加热石灰石产生了该行业约 60% 的碳排放，并且缺乏替代技术，例如直接还原炼钢。

The gas is then pumped into a reactor, where it powers a process called " direct reduction" : under great heat, it snatches oxygen from iron ore, producing nothing but water and sponge iron.

然后将气体泵入反应堆，在那里它为称为“直接还原”的过程提供动力：在高温下，它从铁矿石中夺取氧气，只生产水和海绵铁。