Catalytic conversion
AssigneeMobil Oil Corporation
InventorsClarence D. Chang, David S. Shihabi, Paul B. Weisz
Life of this patent
Estimating the term…
Abstract
A process is provided for converting feedstock comprising C.sub.2.sup.+ olefins, C.sub.2 -C.sub.7 paraffins or mixtures thereof to product comprising C.sub.5.sup.+ hydrocarbons over a catalyst comprising a siliceous zeolite prepared by the method comprising providing zeolite Beta containing boron and aluminum, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
Claims16
A process for converting a feedstock comprising C.sub.2 + olefins, C.sub.2 -C.sub.7 paraffins or mixtures thereof to conversion product comprising C.sub.5 + hydrocarbon compounds, which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition comprising a siliceous zeolite prepared by the method comprising providing a boron-containing zeolite Beta with initial boron and aluminum contents each greater than the numeral 0, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
A process for converting a feedstock comprising C.sub.2 -C.sub.7 olefins to conversion product comprising C.sub.5 + hydrocarbon compounds, which comprises contacting said feedstock at conversion conditions sufficient to convert said feedstock to said product with a catalyst composition comprising a siliceous zeolite prepared by the method comprising providing a boron-containing zeolite Beta with initial boron and aluminum contents each greater than the numeral 0, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
A process for converting a feedstock comprising C.sub.3 -C.sub.18 olefins to conversion product comprising a lubricating oil fraction which comprises contacting said feed-stock at conversion conditions sufficient to convert said feed-stock to said product with a catalyst composition comprising a siliceous zeolite prepared by the method comprising providing a boron-containing zeolite Beta with initial boron and aluminum contents each greater than the numeral 0, treating the zeolite with silicon tetrachloride at a temperature and for a time sufficient to replace boron with silicon, and recovering the siliceous zeolite having reduced boron content but substantially preserved initial aluminum content.
Dependencies are inferred from the claim text.