Process for reacting paraffinic hydrocarbons utilizing hydrogen, metal pentafluoride and hydrogen halide
AssigneeExxon Research & Engineering Co.
InventorsMichael Siskin, Joseph J. Porcelli
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Abstract
High octane alkylates are prepared by selectively alkylating paraffinic hydrocarbons with other paraffinic hydrocarbons at alkylation conditions in the presence of hydrogen and of a catalyst comprising a metal pentafluoride selected from the group consisting of tantalum pentafluoride, niobium pentafluoride and mixtures thereof and a hydrogen halide. The product obtained is a mixture containing primarily C.sub.4 -C.sub.6 isomerized paraffins.
Claims17
A process wherein a paraffinic feedstock comprising C.sub.3 -C.sub.6 paraffinic hydrocarbons is reacted with larger paraffinic hydrocarbons having more than 6 carbon atoms under substantially anhydrous reaction conditions in the presence of hydrogen and a catalyst comprising a metal pentafluoride selected from the group consisting of tantalum pentafluoride, niobium pentafluoride and mixtures thereof and a hydrogen halide, to form a product containing primarily C.sub.4 -C.sub.6 paraffins and having an octane number greater than that of the said feedstock.
A process which comprises reacting a paraffinic feedstock comprising C.sub.3 -C.sub.6 hydrocarbons with paraffinic hydrocarbons having more than 6 carbon atoms under substantially anhydrous conditions in the presence of hydrogen and with a catalyst comprising a metal pentafluoride selected from the group consisting of tantalum pentafluoride, niobium pentafluoride and mixtures thereof, and hydrogen fluoride, wherein the ratio of said hydrogen fluoride to metal pentafluoride is at least equimolar, the reaction taking place substantially in the liquid phase, at a temperature ranging between about -100.degree. and +100.degree. C. and a hydrogen partial pressure of at least 0.1 atmosphere to form a product containing primarily C.sub.4 -C.sub.6 paraffins and having an octane number greater than that of said feedstock.
Dependencies are inferred from the claim text.