Method and an apparatus for performing an energy efficient desulphurization and decarbonisation of a flue gas

US8932529B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Elena Arvanitis · Somerville, US
• Manfred Baldauf · Erlangen, DE
• Günter Schmid · Hemhofen, DE
• Dan Taroata · Erlangen, DE
• Frank Walachowicz · Berlin, DE

Key dates

• Filing date: Feb 10, 2014
• Grant date: Jan 13, 2015
• Expiry date: Feb 10, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E20/32
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A desulphurization and decarbonisation apparatus includes (a) a starter for starting a reaction between an electropositive metal and sulphur oxides and carbon dioxide of a flue gas; (b) a first reaction chamber with a cooling unit for reducing the sulphur oxides and the carbon dioxide of the flue gas in an exothermic reaction with the electropositive metal; (c) a second reaction chamber for generating a first suspension including suspended carbon containing reaction products and sulphur containing reaction products by extracting solid reaction products of the first reaction chamber in a solvent; (d) a third reaction chamber for oxidizing the first suspension to generate a second suspension including suspended carbon containing reaction products and oxidized sulphur containing reaction products; and (e) a separator for separating the oxidized sulphur containing reaction products from the suspended carbon containing reaction products.