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  2. Hydrogen production - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_production

    Other methods of hydrogen production include biomass gasification, methane pyrolysis, and extraction of underground hydrogen. [ 10 ] [ 11 ] As of 2023, less than 1% of dedicated hydrogen production is low-carbon, i.e. blue hydrogen, green hydrogen, and hydrogen produced from biomass.

  3. Hydrogen technologies - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_technologies

    Hydrogen is a chemical widely used in various applications including ammonia production, oil refining and energy. [1] The most common methods for producing hydrogen on an industrial scale are: Steam reforming, oil reforming, coal gasification, water electrolysis. [2] Hydrogen is not a primary energy source, because it is not naturally occurring ...

  4. Biohydrogen - Wikipedia

    en.wikipedia.org/wiki/Biohydrogen

    The biological hydrogen production with algae is a method of photobiological water splitting which is done in a closed photobioreactor based on the production of hydrogen as a solar fuel by algae. [ 13 ] [ 14 ] Algae produce hydrogen under certain conditions.

  5. Hydrogen production - en.wikipedia.org

    en.wikipedia.org/.../mobile-html/Hydrogen_production

    Hydrogen gas is produced by several industrial methods. Nearly all of the world's current supply of hydrogen is created from fossil fuels. [1] [2]: 1 Most hydrogen is gray hydrogen made through steam methane reforming. In this process, hydrogen is produced from a chemical reaction between steam and

  6. Hydrogen economy - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_economy

    Estimates of hydrogen's cost are therefore complex and need to make assumptions about the cost of energy inputs (typically gas and electricity), production plant and method (e.g. green or blue hydrogen), technologies used (e.g. alkaline or proton exchange membrane electrolysers), storage and distribution methods, and how different cost elements ...

  7. Steam reforming - Wikipedia

    en.wikipedia.org/wiki/Steam_reforming

    Steam reforming or steam methane reforming (SMR) is a method for producing syngas (hydrogen and carbon monoxide) by reaction of hydrocarbons with water. Commonly natural gas is the feedstock. The main purpose of this technology is hydrogen production. The reaction is represented by this equilibrium: [1]

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