US 9 272 240 B2

Method and device for purifying exhaust gases

(22) 16.11.2010

(45) 01.03.2016

(57) The invention relates to a regenerative thermal postcombustion plant (24) used for purifying exhaust gas comprising hydrocarbons and nitrogen oxides, particularly for exhaust gas occurring during cement clinker production, by means of which the carbon compound is oxidized and the nitrogen oxides are thermally reduced while feeding in a nitrogen-hydrogen compound at a temperature of greater than 800 °C. in the multistage combustion chamber (35).

(73) Chemisch Thermische Prozesstechnik GmbH, Graz (AT)

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