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Pressure swing adsorption: Quiz


Question 1: PSA is an economic choice for small-scale production of reasonable purity oxygen or nitrogen from ________.
NatureEarthAtmosphere of EarthHistory of the Earth

Question 2: Special adsorptive materials (e.g., ________) are used as a molecular sieve, preferentially adsorbing the target gas species at high pressure.

Question 3: This is exactly the process used in portable oxygen concentrators used by ________ patients and others who require oxygen enriched air to breathe.
Acute respiratory distress syndromeAsthmaEmphysemaPneumonia

Question 4: Refineries often use PSA technology in the removal of hydrogen sulfide (H2S) from hydrogen feed and recycle streams of hydrotreating and ________ units.
Cracking (chemistry)PetroleumAlkaneGasoline

Question 5: Pressure Swing Adsorption (PSA) is a technology used to separate some gas species from a mixture of gases under pressure according to the species' molecular characteristics and affinity for an ________ material.
Surface scienceChemisorptionAdsorptionBET theory

Question 6: Another application of PSA is the separation of carbon dioxide from ________ to increase the methane (CH4) content.
BiofuelEthanol fuelBiogasBioenergy

Question 7: Through PSA the biogas can be upgraded to a quality similar to ________.
Energy developmentNatural gasPetroleumCoal

Question 8: Typical adsorbents are ________, silica gel, alumina and zeolite.
PoisonChelation therapyWhole bowel irrigationActivated carbon


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