Dehydration of alcohols on acidic catalysts

US9249066B2 · kind B2 · utility

Assignee

• TOTAL RESEARCH & TECHNOLOGY FELUY · BE

Inventors

• Delphine Minoux · Nivelles, BE
• Cindy Adam · Wierde, BE
• Nikolai Nesterenko · Nivelles, BE
• Sander Van Donk · Sainte-Adresse, FR
• Jean-Pierre Dath · Ath, BE
• Walter Vermeiren · Houthalen-Helchteren, BE

Key dates

• Filing date: Jun 20, 2011
• Grant date: Feb 2, 2016
• Expiry date: Jun 20, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/52
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A dehydration process may include introducing in a reactor an alcohol, and contacting the alcohol with an acidic catalyst to dehydrate the alcohol to make a corresponding olefin. The process may include recovering from the reactor the olefin and water. In the process, an effective amount of a component capable to neutralize a part of the catalyst active site may be introduced. The component may include ammonia, organic ammonium salts, hydrazine, nitriles, amines, amides, imines, di-imines, imides, cyanates, isocyanates, nitrites and nitroso compounds, aldehydes, ketones, carboxylic esters, and their corresponding thio-compounds.