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  2. Oxygen concentrator - Wikipedia

    en.wikipedia.org/wiki/Oxygen_concentrator

    An oxygen concentrator takes in air and removes nitrogen from it, leaving an oxygen-enriched gas for use by people requiring medical oxygen due to low oxygen levels in their blood. [4] Oxygen concentrators provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants.

  3. Oxygenated treatment - Wikipedia

    en.wikipedia.org/wiki/Oxygenated_treatment

    With oxygenated treatment, oxygen is injected into the feedwater to keep the oxygen level between 30 and 50 ppb. OT programs are most commonly used in supercritical (i.e. >3250psi) power boilers. OT programs are most commonly used in supercritical (i.e. >3250psi) power boilers.

  4. Cold trap - Wikipedia

    en.wikipedia.org/wiki/Cold_trap

    In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases (hydrogen, oxygen, and nitrogen) into a liquid or solid. [ 2 ] [ needs update ] The most common objective is to prevent vapors being evacuated from an experiment from entering a vacuum pump where they would condense and contaminate it.

  5. Pressure swing adsorption - Wikipedia

    en.wikipedia.org/wiki/Pressure_swing_adsorption

    Aside from its use to supply medical oxygen, or as a substitute for bulk cryogenic or compressed-cylinder storage, which is the primary oxygen source for any hospital, PSA has numerous other uses. One of the primary applications of PSA is in the removal of carbon dioxide (CO 2 ) as the final step in the large-scale commercial synthesis of ...

  6. Rebreather - Wikipedia

    en.wikipedia.org/wiki/Rebreather

    A water trap may be provided to collect condensed water from the absorbent reaction and from metabolic product. [24] Monitoring functions may include: [24] Cylinder pressure (analog and digital) Estimated remaining duration of use until residual low pressure warning is activated; Temperature indication; Automatic recording of warning signals

  7. Oxygen-15 labelled water - Wikipedia

    en.wikipedia.org/wiki/Oxygen-15_labelled_water

    The conversion of the oxygen gas [15 O]O 2 to 15 O-water can happen in two ways: the in-target production and the out-of-target external conversion.The in-target production method uses a small amount of hydrogen (about 5%) that is added to the gas, whereby 15 O-water is formed and trapped in a cooled stainless steel loop.

  8. Play Just Words Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/just-words

    If you love Scrabble, you'll love the wonderful word game fun of Just Words. Play Just Words free online!

  9. Schlenk line - Wikipedia

    en.wikipedia.org/wiki/Schlenk_line

    When the reagents are highly susceptible to oxidation, traces of oxygen may pose a problem. Then, for the removal of oxygen below the ppm level, the inert gas needs to be purified by passing it through a deoxygenation catalyst. [4] This is usually a column of copper(I) or manganese(II) oxide, which reacts with oxygen traces present in the inert ...