PROCESS FOR THE REDUCTION OF THE NO CONTENT IN FLUE GAS, IN THE HEATING OF RICH GAS OR VERBUND COKE OVENS AND GROUP OF COKE OVENS TO CARRY OUT THE PROCESS

The invention relates to a process for reducing the NOx content in flue gas in the heating of rich gas or verbund coke ovens with heating walls made up of twin flues, with single or multiple stage combustion in the twin flues and with regenerators for the recovery of flue gas heat and for preheating...

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Bibliographic Details
Main Authors DURSELEN, HEINZ, SCHUFFLER, ARNULF, MEYER, GUNTER
Format Patent
LanguageEnglish
German
Published 24.04.1991
Edition5
Subjects
AIR
BLASTING
CHEMISTRY
COMBUSTION APPARATUS
COMBUSTION PROCESSES
DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
FLUES
FUELS
HEATING
LIGHTING
LUBRICANTS
MECHANICAL ENGINEERING
METALLURGY
METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN
PEAT
PERFORMING OPERATIONS
PETROLEUM, GAS OR COKE INDUSTRIES
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES
SEPARATION
TECHNICAL GASES CONTAINING CARBON MONOXIDE
TRANSPORTING
WEAPONS
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Summary:The invention relates to a process for reducing the NOx content in flue gas in the heating of rich gas or verbund coke ovens with heating walls made up of twin flues, with single or multiple stage combustion in the twin flues and with regenerators for the recovery of flue gas heat and for preheating the undergrate firing media. It is envisaged that flue gas drawn off from the flue gas duct is mixed in with the undergrate firing media, gas and/or air, before or during entry into the oven and, in addition, that a flue gas recirculation takes place within the twin flues.
Bibliography:Application Number: EP19890120641