Process for dehydration of dilute ethanol into ethylene with low energy consumption without recycling of water

US9079812B2 · kind B2 · utility

Assignees

• TOTAL RESEARCH & TECHNOLOGY FELUY · BE
• IFP ENERGIES NOUVELLES · FR

Inventors

• Vincent Coupard · Villeurbanne, FR
• Natacha Touchais · Vienne, FR
• Stephanie Fleurier · Val-de-Reuil, FR
• Helena Gonzalez Penas · Rueil-Malmaison, FR
• Philip De Smedt · Sint-Niklaas, BE
• Walter Vermeiren · Houthalen-Helchteren, BE
• Cindy Adam · Wierde, BE
• Delphine Minoux · Nivelles, BE

Key dates

• Filing date: Oct 5, 2012
• Grant date: Jul 14, 2015
• Expiry date: Jun 14, 2033

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P30/40
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for dehydration of an ethanol feedstock into ethylene, comprising the vaporization of said dilute hydrated ethanol feedstock in an exchanger, with heat exchange with the effluent that is obtained from a last reactor, with said mixture being introduced into said vaporization stage at a pressure that is lower than the pressure of the effluent that is obtained from the last reactor, the compression of the mixture that is vaporized in a compressor, the introduction of the vaporized and compressed mixture, into at least one adiabatic reactor that contains at least one dehydration catalyst.