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  2. Industrial gas - Wikipedia

    en.wikipedia.org/wiki/Industrial_gas

    Syngas is often considered to be a petrochemical; although its production is a core industrial gases technology. Similarly, projects harnessing Landfill gas or biogas, Waste-to-energy schemes, as well as Hydrogen Production all exhibit overlapping technologies. Helium is an industrial gas, even though its source is from natural gas processing.

  3. Helium - Wikipedia

    en.wikipedia.org/wiki/Helium

    Helium is a commonly used carrier gas for gas chromatography. The age of rocks and minerals that contain uranium and thorium can be estimated by measuring the level of helium with a process known as helium dating. [28] [30] Helium at low temperatures is used in cryogenics and in certain cryogenic applications.

  4. Helium storage and conservation - Wikipedia

    en.wikipedia.org/wiki/Helium_storage_and...

    In reaction to depleting helium sources, the Helium Act of March 3, 1927 was established to prohibit the sale of helium to foreign countries and for non-governmental domestic use. [ 8 ] By 1937, a number of factors collided to move the United States government to revise its helium policy and create the Helium Act of September 1, 1937.

  5. Closed-cycle gas turbine - Wikipedia

    en.wikipedia.org/wiki/Closed-cycle_gas_turbine

    They have also been proposed as a technology for use in long-term space exploration. [ 12 ] Supercritical carbon dioxide closed-cycle gas turbines are under development; "The main advantage of the supercritical CO 2 cycle is comparable efficiency with the helium Brayton cycle at significantly lower temperature" (550 °C vs. 850 °C), but with ...

  6. The world is running out of helium. Here's why doctors are ...

    www.aol.com/news/world-running-helium-heres-why...

    Mahesh estimates that an MRI machine uses 10,000 liters of liquid helium over its life span. (According to GE Healthcare, a manufacturer of the machines, that life span is 12.8 years.) In 2015 ...

  7. Helium production in the United States - Wikipedia

    en.wikipedia.org/wiki/Helium_production_in_the...

    Helium production and storage in the United States, 1940-2014 (data from USGS) In 1903, an oil exploration well at Dexter, Kansas, produced a gas that would not burn.. Kansas state geologist Erasmus Haworth took samples of the gas back to the University of Kansas at Lawrence where chemists Hamilton Cady and David McFarland discovered that gas contained 1.84 percent

  8. Cold spraying - Wikipedia

    en.wikipedia.org/wiki/Cold_spraying

    Cold spraying is now used to repair machine parts in a matter of minutes. Metal (nickel alloys) particles travel in a blend of nitrogen and helium gas and gradually stack up on the damaged part to recreate the desired surface. A robot controls the movement of the sprayer. The U.S. Army uses the technology to repair a component in Blackhawk ...

  9. Explainer-What is helium and why is it used in rockets? - AOL

    www.aol.com/news/explainer-helium-why-used...

    Helium is used to pressurize fuel tanks, ensuring fuel flows to the rocket's engines without interruption; and for cooling systems. As fuel and oxidiser are burned in the rocket's engines, helium ...