OEO Ontology

Overview / Open Energy Ontology / Class - hydrogen
Label: hydrogen
Definition:
Hydrogen is a portion of matter with the chemical formula H2. It has a gaseous normal state of matter. As it can be oxidised it can be used as a fuel.

Sub classes:
abated steam reforming hydrogen
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Definition:
Abated steam reforming hydrogen is hydrogen that is output of a steam reforming process which is followed by a carbon capture and storage process.

electrolytic hydrogen
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Definition:
Electrolytic hydrogen is hydrogen that is a physical output of a water electrolysis process.

fossil hydrogen
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Definition:
Fossil hydrogen is hydrogen with fossil origin.

fossil steam reforming hydrogen
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Definition:
Fossil steam reforming hydrogen is hydrogen that is produced from a fossil combustion fuel in a steam reforming process which is not followed by a carbon capture and storage process.

steam reforming hydrogen
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Definition:
Steam reforming hydrogen is hydrogen that is a physical output of a steam reforming process.

synthetic hydrogen
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Definition:
Synthetic hydrogen is hydrogen with synthetic origin.

Back to the super classes:
portion of matter
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Definition:
A portion of matter is an aggregate of material entities that have a state of matter.

Editor note:
Portions of matter describe mass nouns like e.g. water, air and fuel. Mass nouns are uncountable, but portions of these can be quantified, like 1 glass of water, 1 m³ of air or 1 barrel of fuel. For further explanation please refer to: https://github.com/OpenEnergyPlatform/ontology/wiki/Explanation-on-mass-nouns