Process for carrying out multi-phase reactions according to the counter current principle of a liquid and gaseous phase and apparatus for carrying out the process

US6512131B1 · kind B1 · utility

Assignee

• Dr. Frische GmbH · DE

Inventors

• Bernd Best · Mörfelden, DE
• Karlheinz Brunner · Großkrotzenburg, DE
• Rainer Frische · Frankfurt, DE
• Dirk Kilian · Maintal, DE
• Joachim Seemann · Reinheim, DE

Key dates

• Filing date: Oct 22, 2000
• Grant date: Jan 28, 2003
• Expiry date: May 12, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2219/00182
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A process for carrying out a multi-phase reaction in a continuously operated tube reactor operated according to the counter current principle in which reactor components of a liquid phase flowing downwards as a thin film in said tube reactor and components of a continuous gas flowing upward in said tube reactor are brought to material transfer, or reaction respectively. The gas phase is pulsed, by repeated temporary pressure lowering at the gas entry into said tube reactor and/or repeated temporary pressure increase at the gas exit from said tube reactor, to counteract film thickness growth and liquid phase stagnation.