Assertion: sulfur | /r/CapableOf | poison noble metal catalysts
Facets:
value: in the catalytic reforming units
type: LOCATION
Source sentences:
text: Another important reason for removing sulfur from the naphtha streams within a petroleum refinery is that sulfur, even in extremely low concentrations, poisons the noble metal catalysts (platinum and rhenium) in the catalytic reforming units that are subsequently used to upgrade the octane rating of the naphtha streams.