EP 4065889 A1 20221005 - COMBUSTION OF THE CO IN SECONDARY METALLURGICAL EXHAUST GAS, WITH CALORIFIC VALUE CONTROL AND VOLUME FLOW CONTROL
Title (en)
COMBUSTION OF THE CO IN SECONDARY METALLURGICAL EXHAUST GAS, WITH CALORIFIC VALUE CONTROL AND VOLUME FLOW CONTROL
Title (de)
HEIZWERT- UND VOLUMENTROMGESTEUERTE VERBRENNUNG DES CO IN SEKUNDÄRMETALLURISCHEM ABGAS
Title (fr)
COMBUSTION DU CO DANS UN GAZ D'ÉCHAPPEMENT MÉTALLURGIQUE SECONDAIRE, AVEC RÉGULATION DE LA VALEUR CALORIFIQUE ET RÉGULATION DU DÉBIT VOLUMIQUE
Publication
Application
Priority
- DE 102019132181 A 20191127
- EP 2020083023 W 20201123
Abstract (en)
[origin: WO2021105045A1] The invention relates to a method for the post-combustion of exhaust gases comprising carbon monoxide from metallurgical processes with discontinuously generated exhaust-gas volumes, the composition and/or flow rate of which varies during a period within which exhaust gas is generated, wherein the method comprises conditioning of the exhaust gas prior to the post-combustion, in such a way that at least one combustion gas and/or one additional gas is metered in feedback-controlled fashion to the exhaust gas upstream of the post-combustion, wherein the feedback control is performed in a manner dependent on the composition of the exhaust gas and in a manner dependent on the exhaust-gas volume flow. The invention furthermore relates to a post-combustion device for the post-combustion of exhaust gas during a vacuum treatment of liquid steel in a secondary metallurgical process, comprising at least one flare stack (2) at an exhaust outlet (4) of an exhaust-gas channel (5) of a vacuum pump of a secondary metallurgical plant, means for supplying combustion gas to the flare stack (2), means for feeding an inert gas into the exhaust-gas channel of the vacuum pump upstream of the flare stack (2), means for ascertaining the exhaust-gas volume flow and/or for measuring the exhaust-gas velocity within the exhaust-gas channel (5), means for analyzing the exhaust-gas composition, means for metering the combustion gas and the inert gas, and means for feedback control of the metering of the combustion gas and/or of the inert gas in a manner dependent on the exhaust-gas composition.
IPC 8 full level
F23G 7/08 (2006.01)
CPC (source: EP US)
F23G 7/08 (2013.01 - EP); F23G 7/085 (2013.01 - US); F23G 2204/103 (2013.01 - EP); F23G 2207/20 (2013.01 - US); F23G 2207/40 (2013.01 - EP); F23G 2209/14 (2013.01 - US); F23G 2209/141 (2013.01 - EP); F23G 2900/55003 (2013.01 - US); F23G 2900/55011 (2013.01 - EP US); F23K 2900/05004 (2013.01 - EP); F23N 2221/10 (2020.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102020214667 A1 20210527; EP 4065889 A1 20221005; EP 4065889 B1 20240228; US 2022412554 A1 20221229; WO 2021105045 A1 20210603
DOCDB simple family (application)
DE 102020214667 A 20201123; EP 2020083023 W 20201123; EP 20812007 A 20201123; US 202017779868 A 20201123