About: http://webisa.webdatacommons.org/328049078

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A gas stream comprising nitrogen and oxygen, such as air, at a temperature between 0??? and 50??? C. and a pressure between 1 atmosphere and 5 atmospheres, is passed over the adsorbent bed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com