Apparatus and process for decomposing dinitrogen monoxide in an adiabatic fixed bed reactor

US8460627B2 · kind B2 · utility

Assignee

• Linde GmbH · DE

Inventors

• Franz Beran · Munich, DE
• Karl Hofmann · Neckarrems, DE
• Nicole Schodel · Birkenfeld, DE
• Wolfgang Schmehl · Hamburg, DE
• Ulrike Wenning · Pullach, DE
• Hans-Jörg Zander · Birkenfeld, DE

Key dates

• Filing date: Jan 5, 2010
• Grant date: Jun 11, 2013
• Expiry date: Jan 5, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/151
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device and method for the decomposition of laughing gas including a gas inlet for supplying a laughing-gas-bearing gas; a first heat-exchanger for the exchange of heat between an exhaust and the laughing-gas-bearing gas; a heating device for occasional heating of the laughing-gas-bearing gas and a fixed-bed reactor in which a catalyst is included in order to decompose the laughing gas. The device also includes a gas outlet, through which exhaust leaving the fixed-bed reactor can be taken away through the heat exchanger. The device may be used to implement a method where the catalyst for decomposition of laughing gas is maintained at temperatures below 800° C. and in which the fixed-bed reactor is arranged as an adiabatic reactor.