Patent ID: 9522853
Filing Date: 2016-12-20
CPC Classification: B01J,C07C,C08F,C10G,C12P,Y02E,Y02P

Claim Text:
1. A process comprising: a) introducing in a reactor a stream comprising an alcohol mixture, optionally water, optionally an inert component, wherein the alcohol mixture comprises from 40 to 100 weight percent isobutanol based on a total weight of the alcohol mixture, b) contacting said stream with a single catalyst at a temperature above 450° C. in said reactor at conditions effective to dehydrate at least a part of the isobutanol and other alcohols, if any, forming C c) recovering from said reactor an effluent comprising: ethylene, propylene, water, optionally unconverted alcohols of the alcohol mixture, various hydrocarbons, and the optional inert component of step a), d) fractionating said effluent of step c) to produce at least an ethylene stream, a propylene stream, a fraction comprising hydrocarbons having 4 carbon atoms or more, water and the optional inert component of step a), optionally recycling ethylene in whole or in part at an inlet of the reactor, optionally recycling the fraction comprising hydrocarbons having 4 carbon atoms or more at the inlet of the reactor; wherein the single catalyst comprises a dealuminated crystalline silicate containing at least one 10 member ring in the structure thereof.