Method and device for generating hydrogen

US8486367B2 · kind B2 · utility

Assignee

• Linde GmbH · DE

Inventors

• Karl Hofmann · Neckarrems, DE
• Nicole Schoedel · Munich, DE
• Klaus Klapper · Pullach, DE
• Axel Behrens · Munich, DE
• Roland Dittmeyer · Oberursel, DE

Key dates

• Filing date: Jun 9, 2009
• Grant date: Jul 16, 2013
• Expiry date: Mar 1, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01B2203/1241
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a method and a device for generating hydrogen (5), wherein an input (1) comprising carbon is fed longitudinally through a tube-shaped reaction chamber (Z), together with water steam (2), and is thereby converted by steam reforming, and hydrogen (4) formed during steam reforming is continuously drawn off out of the reaction chamber (Z) through a separating wall (T), said wall being selectively hydrogen-permeable at least in segments, and at a pressure less than the pressure in the reaction chamber (Z) and greater than the ambient pressure, having greater purity than product (5), characterized in that a separating wall (T) is used, the selectively hydrogen-permeability segments thereof being disposed such that a hydrogen partial pressure drop exists over the entire surface of each of such segments between the reaction chamber side and the hydrogen extraction side (W).