Most hydrogen today is produced from fossil fuels – steam methane reforming of natural gas, partial oxidation of coal or oil residues – and entails large CO2 emissions, from 8.5 tons of CO2 per ton of H2 from natural gas in modern facilities up to 20 tCO2/tH2 from coal. This fossil hydrogen can be called “grey hydrogen”.
Continue reading “What is turquoise, or green-blue Hydrogen?”
20 September 2022, 2nd edition, Brightlands Chemelot Campus, Geleen, The Netherlands
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