Process and reactor for the epoxidation of propene

US10214504B2 · kind B2 · utility

Assignees

• EVONIK DEGUSSA GMBH · DE
• THYSSENKRUPP INDUSTRIAL SOLUTIONS AG · DE

Inventors

• Marc Brendel · Bruchköbel, DE
• Manfred Bärz · Alzenau, DE
• Johannes Kowoll · Bochum, DE
• David BOLZ · Frankfurt, DE
• Willi Hofen · Rodenbach, DE
• Jürgen Schemel · Bad Soden, DE
• Bernd Jaeger · Emmelshausen, DE
• Niels Bredemeyer · Waltrop, DE
• Bärbel Kolbe · Witten, DE
• Norbert Ullrich · Essen, DE
• Michael Dopfer · Pocking, DE
• Wolfgang Wöll · Maintal, DE
• Peter Porscha · Kelkheim, DE
• Dana Pfenning · Mannheim, DE
• Maik Bernhard · Bärnsdorf, DE

Key dates

• Filing date: Nov 1, 2016
• Grant date: Feb 26, 2019
• Expiry date: Nov 1, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Propene is continuously reacted with hydrogen peroxide in a tube bundle reactor comprising a multitude of parallel reaction tubes in the presence of a titanium silicalite catalyst arranged as a fixed bed in the reaction tubes. A cooling jacket encloses the reaction tubes, which has a feed point for cooling medium near the entry of the reaction tubes, a withdrawal point for cooling medium near the end of the reaction tubes and at least one additional withdrawal point upstream of the withdrawal point near the end of the reaction tubes. Cooling medium is fed to the feed point for cooling medium, a part of the cooling medium is withdrawn at the at least one additional withdrawal point and the remainder exits at the withdrawal point near the end of the reaction tubes.