Alkyl fluoride storage stabilization and alkylation with stored alkyl fluoride
AssigneePhillips Petroleum Company
InventorsThomas Hutson, Jr., Wayne P. Kraus
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Abstract
Alkyl fluorides are stored in the presence of a paraffinic hydrocarbon diluent prior to utilization, for example, alkylation, in order to prevent degradation of the fluoride to heavy polymer oil formation.
Claims12
A storage-stable composition comprising an alkyl fluoride diluted with a stabilizing amount of a paraffinic hydrocarbon having from 4 to 8 carbon atoms in an amount sufficient to prevent degradation of said fluoride to polymer formation during storage and handling.
A method for rendering alkyl fluoride storage-stable under conditions conducive to polymer formation which comprises diluting said alkyl fluoride with a paraffinic hydrocarbon having from 4 to 8 carbon atoms in an amount effective to prevent any substantial degradation of alkyl fluoride during storage and handling under conditions conducive to polymer formation.
An improved process for the production of alkylate which comprises
- (a) hydrofluorinating an olefin-containing hydrocarbon stream with HF under hydrofluorination conditions which produce alkyl fluorides,
- (b) diluting the hydrofluorination effluent comprising alkyl fluorides with a paraffinic hydrocarbon having from 4 to 8 carbon atoms in an amount sufficient to prevent any substantial degradation of said fluoride to heavy polymer oil during storage and handling and transferring from storage to a place of utilization subsequent to hydrofluorination,
- (c) storing said paraffin-diluted alkyl fluoride, and
- (d) passing said paraffin-diluted alkyl fluoride obtained in step (b) after storage and handling in step (c) to alkylation and therein contacting same with an isoparaffin and HF under alkylation conditions to produce alkylate.
Dependencies are inferred from the claim text.