About: http://webisa.webdatacommons.org/403162415

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	Catalytic cracking of petroleum has conventionally been achieved with various types of reactors, including a fluidized-bed unit, a moving-bed unit, and a fixed-bed unit.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk