GAZOLINE UPGRADING PROCESS.

摘要

The present invention relates to a process allowing the tuning of the gasoline/diesel balance by converting an initial feedstock containing olefins from 4 to 20 carbon atoms using a crystalline catalyst with reduced diffusional limitations. The process comprises: -processing a feedstock stream containing olefins from 4 to 20 carbon atoms with or without the presence of an aromatic containing stream, -contacting said stream(s) with a catalyst at conditions effective to oligomerize a least a portion of the olefins and eventually alkylate at least a portion of the aromatics, wherein the catalyst is a crystalline compound with micro/mesoporous structure chosen among crystalline aluminosilicates, crystalline aluminophosphates, crystalline silico-aluminophosphates, crystalline zeolites, or the catalyst is a composite material comprising at least 20%wt of at least one of the above mentioned crystalline compounds, and wherein the mesoporous volume of the crystalline compound is at least 0.22ml/g.