brown hydrogen

American  

[broun hahy-druh-juhn] / ˈbraʊn ˈhaɪ drə dʒən /

noun

1. hydrogen that is produced by breaking down coal, especially lignite, with steam and oxygen, releasing high amounts of carbon into the atmosphere.

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Etymology

Origin of brown hydrogen

First recorded in 2005–10

Example Sentences

Hydrogen made using coal power is often called “black” or “brown” hydrogen.

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