Patent ID: 8674157
Filing Date: 2014-03-18
Classification: B01J,C07C,Y02P

Abstract:
1. A process for converting a hydrocarbon feedstock to provide an effluent containing light olefins, the process comprising passing a multicomponent feedstock comprising a mixture of a first portion, containing at least one olefin of C 4 or greater, and a second portion containing at least one C 1 to C 6 aliphatic hetero compound selected from the group consisting of an alcohol, an ether and a carbonyl compound and mixtures thereof, through a reactor containing a crystalline silicate catalyst selected from the group consisting of an MFI crystalline silicate having a silicon/aluminium atomic ratio of at least 180 and an MEL crystalline silicate having a silicon/aluminium atomic ratio of from 150 to 800 which has been subjected to a steaming step, to produce an effluent comprising a molar excess of propylene, wherein the reactor is operated adiabatically, wherein at least a portion of the olefin of C