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New User'Blue' hydrogen may be worse than gas, coal: Research study
16 Aug 2021
"Blue" hydrogen -- an energy source that involves a process for making hydrogen by using methane in natural gas -- is being lauded as a clean, green energy to help reduce global warming. But researchers believe it may harm the climate more than burning fossil fuels.
The carbon footprint to create blue hydrogen is more than 20 per cent greater than using either natural gas or coal directly for heat, or about 60 per cent greater than using diesel oil for heat, according to new research published in the journal Energy Science and Engineering.
Blue hydrogen starts with converting methane to hydrogen and carbon dioxide (CO2) by using heat, steam and pressure, or gray hydrogen, but goes further to capture some of the CO2. Once the byproduct CO2 and the other impurities are sequestered, it becomes blue hydrogen, according to the US Department of Energy.
Source : https://energy.economictimes.indiatimes.com/news