Green steel: circular reference?
…oxygen furnaces emitting 2.4 tons of CO2 per ton of steel output. Pages 2-4 provide an overview of the industry, its production processes and their CO2 emissions. Green hydrogen is…
Nexwafe: PV silicon breakthrough?
…patent library shows how the resulting wafer can have 98% lower levels of oxygen impurities, and 4-5x narrower distributions of dopant distributions. 1.1% total efficiency gains are also targeted through…
Sulphur recovery units: Claus process economics?
…gas sweetening. Producing sulphur is not energy or CO2 intensive, at 0.1 tons CO2/ton of sulphur. The majority of this is inherited from oxygen enrichment, which improves yields, but in…