Method and apparatus for producing biogas

US8889404B2 · kind B2 · utility

Assignee

• KSB Aktiengesellschaft · DE

Inventors

• Kai Rostalski · Merseburg, DE
• Peer Springer · Schifferstadt, DE

Key dates

• Filing date: Oct 1, 2012
• Grant date: Nov 18, 2014
• Expiry date: Oct 1, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E50/30
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

A method and apparatus for producing biogas from organic matter including a container (1) which is charged with fermentation substrate by a delivery system (13), and at least two stirring mechanisms (2) arranged in the container, the stirring mechanisms having propellers (3) which are rotated and generate mostly horizontal currents of the fermentation substrate in the container. The propeller diameters, the propeller geometries, and the positions of the propellers in the container are selected such that a shared mixing zone of the medium is generated in the container. Data for determining the mean speed and/or the viscosity of the medium in the mixing zone are detected and transmitted to a control unit (4) which varies actuating variables which modify the power input of the stirring mechanism into the mixing zone and/or the composition and/or the flow behavior of the container contents.