Method for producing 1,2-propandiol by hydrogenation in at least three successive reactors

US8293951B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Jochem Henkelmann · Mannheim, DE
• Roman Prochazka · Mannheim, DE
• Oliver Bey · Niederkirchen, DE
• Stephan Maurer · Neustadt, DE
• Jochen Steiner · Bensheim, DE
• Heiko Urtel · Bischofswerda, DE
• Gerhard Theis · Frankenthal (Pfalz), DE
• Peter Wahl · Ladenburg, DE

Key dates

• Filing date: Aug 29, 2008
• Grant date: Oct 23, 2012
• Expiry date: Jun 29, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E50/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing 1,2-propanediol, in which a glycerol-containing stream, especially a stream obtained on the industrial scale in the production of biodiesel, is subjected to a hydrogenation in an at least three-stage reactor cascade.