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Hydrogen gas: Difference between revisions
→Color terminology
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Hydrogen is a colorless gas, but people sometimes ''name'' it with colors to indicate ''how it was produced'': | Hydrogen is a colorless gas, but people sometimes ''name'' it with colors to indicate ''how it was produced'': | ||
* [[Grey hydrogen]] is made from natural gas steam reforming - high [[greenhouse gas]] emissions. Currently the vast majority of hydrogen is produced this way. | * [[Grey hydrogen]] is made from natural gas (steam reforming) - high [[greenhouse gas]] emissions. Currently the vast majority of hydrogen is produced this way. | ||
* [[Blue hydrogen]] is made from natural gas the same way, but with [[carbon capture]]. This is ''supposed'' to reduce emissions, but ''in practice'' it doesn't help much.<!-- TODO: cite that article I found awhile ago --> | * [[Blue hydrogen]] is made from natural gas the same way, but with [[carbon capture]]. This is ''supposed'' to reduce emissions, but ''in practice'' it doesn't help much.<!-- TODO: cite that article I found awhile ago --> | ||
* [[Pink hydrogen]] is made from electrolysis using [[nuclear]] energy. | * [[Pink hydrogen]] is made from electrolysis using [[nuclear]] energy. | ||
* [[Green hydrogen]] is made from electrolysis using renewable energy. | * [[Green hydrogen]] is made from electrolysis using renewable energy. | ||