Unsupported metal substituted heteropolyacid catalysts for dimerization and/or oligomerization of olefins

摘要

The present invention relates to unsupported metal (e.g., cesium) substituted heteropolyacid catalyst compositions useful for the production of butene dimers and/or oligomers from a mixed butenes feed, in which, under mild conditions, all isomers of mixed butenes produce highly branched C8 and C8+ olefins.

主权项

1. A process for dimerizing and oligomerizing a hydrocarbon feed comprising mixed olefins to produce mixed branched higher olefins, said process comprising the steps of:
introducing the hydrocarbon feed into a reactor vessel under oligomerization conditions; contacting the mixed hydrocarbon feed with a catalyst within the reactor vessel to convert the mixed branched olefins into the mixed branched higher olefins, wherein the catalyst consists of an unsupported metal substituted heteropolyacid catalyst represented by Formula (I):
CsxHyPMo12O40  (I)wherein, x and y represent numbers; and
producing a product stream comprising the mixed branched higher olefins from the reactor vessel; wherein the hydrocarbon feed comprises at least two butene isomers and the mixed branched higher olefins comprise olefins having more than 4 carbons.