About: http://webisa.webdatacommons.org/358844642

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	During the cracking process, carbonaceous deposits or coke and other contaminants such as metals are deposited on the catalyst resulting in at least a partial deactivation of the catalyst.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com