Assertion: boiling hydrocarbon | /r/CapableOf | comprise subjecting higher boiling petroleum oil
Facets:
value: to distillation tem ratures
type: TRANSITIVE-OBJECT
value: in the presence of a catalyst
type: OTHER
Source sentences:
text: The process of treating hydrocarbon oils to sheet conversion of higher boiling hydrocarbons into lower boiling hydrocarbons which comprises subjecting a higher boiling petroleum oil to distillation tem ratures in the presence of a catalyst consist1n solely of anhydrous aluminum chloride, intimately commingling hydrogen chloride with the hot mixture of oil and aluminum chloride to produce an even evolution of vapors of low boilin hydrocarbons and to prevent the oil and a uminum chloride from coking, subjecting the evolved vapors to dephlegmation to produce a vapor fraction of the desired quality and wit drawing the unvaporized residue, which is not returned to the still,