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How Steam Reformation Works

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How Electrolysis Works

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For more than 50 years, companies have been safely producing hydrogen. Most hydrogen is used in industrial purposes, such has gasoline refining, food processing and making silicon chips. Today we create most hydrogen by passing steam through natural gas in a process called "steam methane reformation."
Another method is "electrolysis," using electricity (from renewable or traditional sources) to separate water molecules into hydrogen and oxygen. Scientists are also experimenting with capturing the hydrogen from other sources such as plant material (biomass), sewage and even composting garbage.
Other resources:
Air Products and Chemicals, Inc.
National Hydrogen Association |