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  2. Hydrogen infrastructure - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_infrastructure

    Hydrogen pipeline transport is a transportation of hydrogen through a pipe as part of the hydrogen infrastructure. Hydrogen pipeline transport is used to connect the point of hydrogen production or delivery of hydrogen with the point of demand, pipeline transport costs are similar to CNG, [9] the technology is proven, [10] however most hydrogen is produced on the place of demand with every 50 ...

  3. High-pressure electrolysis - Wikipedia

    en.wikipedia.org/wiki/High-pressure_electrolysis

    Ultrahigh-pressure electrolysis is high-pressure electrolysis operating at 340–690 bars (5,000–10,000 psi). [8] At ultra-high pressures the water solubility and cross-permeation across the membrane of H 2 and O 2 is affecting hydrogen purity, modified PEMs are used to reduce cross-permeation in combination with catalytic H 2 /O 2 recombiners to maintain H 2 levels in O 2 and O 2 levels in ...

  4. High Temperature Proton Exchange Membrane fuel cell

    en.wikipedia.org/wiki/High_Temperature_Proton...

    Hydrogen with low purity can be used as fuel. Hydrogen with low purity is cheaper than high purity hydrogen which has to be usually used for LT-PEM fuel cell. The use of fuels like methanol makes cheaper fuel costs per kWh possible compared with hydrogen (e.g. LT-PEM fuel cells) or diesel (e.g. gensets) as fuel.

  5. Cascade filling system - Wikipedia

    en.wikipedia.org/wiki/Cascade_filling_system

    Hydrogen storage cylinders in a cascade filling system A cascade filling system is a high-pressure gas cylinder storage system that is used for the refilling of smaller compressed gas cylinders. [ 1 ] [ 2 ] In some applications, each of the large cylinders is filled by a compressor , otherwise they may be filled remotely and replaced when the ...

  6. Proton-exchange membrane - Wikipedia

    en.wikipedia.org/wiki/Proton-exchange_membrane

    The hydrogen ions permeate across the electrolyte to the cathode, while the electrons flow through an external circuit and produce electric power. Oxygen, usually in the form of air, is supplied to the cathode and combines with the electrons and the hydrogen ions to produce water. The reactions at the electrodes are as follows: Anode reaction:

  7. Hydrogen production - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_production

    Hydrogen gas is produced by several industrial methods. [1] Nearly all of the world's current supply of hydrogen is created from fossil fuels. [2] [3]: 1 Most hydrogen is gray hydrogen made through steam methane reforming. In this process, hydrogen is produced from a chemical reaction between steam and methane, the main component of natural gas.

  8. Best CD rates today: Protect your money from holiday spending ...

    www.aol.com/finance/best-cd-rates-today-protect...

    CD rates strongly track with the key interest rate set by the Federal Reserve, the U.S.'s central bank. This Fed rate is the benchmark that affects rates on deposit accounts, loans, mortgages ...

  9. Hydrogen economy - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_economy

    Hydrogen gas is produced by several industrial methods. [37] Nearly all of the world's current supply of hydrogen is created from fossil fuels. [38] [39]: 1 Most hydrogen is gray hydrogen made through steam methane reforming. In this process, hydrogen is produced from a chemical reaction between steam and methane, the main component of natural gas.