Assertion: naphtha | /r/HasSubevent | sulphide formation
Facets:
Source sentences:
text: (b) light cracked naphtha is treated in the presence of thioesterification catalyst, mercaptanes reacting with part of dienes present in naphtha, which results in sulphide formation; and (c) middle cracked naphtha is treated, part of dienes present in naphtha being hydrogenated.