Patent ID: 6063974
Filing Date: 2000-05-16
Classification: B01J,C10G

Abstract:
A method of converting non-aromatic hydrocarbons to olefins and aromatic hydrocarbons comprising:contacting a feed comprising at least one non-aromatic hydrocarbon containing 2-16 carbon atoms per molecule with a catalyst prepared by a process consisting essentially of:combining zinc nitrate and gamma alumina to form a mixture, drying said mixture to form a dried mixture, and heating said dried mixture at a temperature within the range of 300-700.degree. C. for 0.1-10 hours; thereafter treating with water vapor at a temperature within the range of 500-800.degree. C. for a time within the range of 0.5-15 hours; thereafter combining with a zeolite having a SiO.sub.2 :Al.sub.2 O.sub.3 molar ratio within the range of 40-70 to form a water vapor treated mixture; drying said water vapor treated mixture to form a dried water vapor treated mixture and calcining said dried water vapor treated mixture; thereafter contacting with a hydrocarbon solution of a silylating agent selected from poly(phenylmethyl)siloxane and tetraethyl orthosilicate to form a silylated mixture; and drying said silylated mixture to form a dried silylated mixture and calcining said dried silylated mixture; andrecovering a reaction product comprising olefins containing 2-5 carbon atoms per molecule and aromatic hydrocarbons.