Residence time providing module/apparatus

US6436720B1 · kind B1 · utility

Assignee

• Cellular Process Chemistry, Inc. · US

Inventors

• Sebastian Oberbeck · Greifenstein, DE
• Andreas Oberbeck · Wiesbaden, DE
• Klaus Golbig · Maintal, DE
• Michael Hohmann · Leipzig, DE

Key dates

• Filing date: Sep 15, 2000
• Grant date: Aug 20, 2002
• Expiry date: Sep 15, 2020

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/2575
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A variable residence time chamber module that provides an additional residence time for a reaction of mixed reactants to reach completion. The module includes a thermally insulated housing in which are disposed a plurality of residence time chambers. A rotary inlet valve and rotary outlet valve select among the plurality of chambers, coupling them respectively to an inlet port through which the mixed but incompletely reacted reactants are supplied and an outlet port through which a desired product of the reaction is withdrawn. A heat transfer media is preferably used to control the temperature of the residence time chambers, so that an optimal reaction temperature is provided. The mixed reactants pass through the inlet valve into a selected one of the plurality of residence time chambers. Once the selected residence time chamber is full, the inlet valve is actuated to supply the mixed reactants to a successive residence time chamber. After the reactants in a filled residence time chamber have completely reacted to form the desired product, the outlet valve is actuated to withdraw the desired product. Because a plurality of different residence time chambers are provided, it is possi…