Global Patent Index - EP 0851173 B1

EP 0851173 B1 20021120 - A method of controlling nitrous oxide in circulating fluidized bed steam generators

Title (en)

A method of controlling nitrous oxide in circulating fluidized bed steam generators

Title (de)

Verfahren zur Kontrolle von Stickoxiden bei einem Dampferzeuger mit zirkulierender Wirbelschicht

Title (fr)

Procédé de contrôle d'oxyde nitrique dans un générateur de vapeur à lit fluidisé circulant

Publication

EP 0851173 B1 20021120 (EN)

Application

EP 97122925 A 19971229

Priority

US 77476396 A 19961230

Abstract (en)

[origin: EP0851173A2] A method of controlling N2O emissions from a circulating fluidized bed steam generator (CFB) (2) while concomitantly therewith maintaining acceptable levels of NOx emissions and SOx emissions from the circulating fluidized bed steam generator (CFB) (2), by increasing the temperature of the combustion gases (32) prior to their discharge from cyclone exit (8a) and at the same time lowering their temperature at the furnace exit (4c).

IPC 1-7

F23C 10/10; F23C 6/04

IPC 8 full level

F23C 6/04 (2006.01); F23C 10/10 (2006.01)

CPC (source: EP)

F23C 6/04 (2013.01); F23C 10/10 (2013.01); F23J 2215/101 (2013.01)

Designated contracting state (EPC)

AT BE DE DK ES FI FR GB IE IT NL PT SE

DOCDB simple family (publication)

EP 0851173 A2 19980701; EP 0851173 A3 19990728; EP 0851173 B1 20021120; AT E228225 T1 20021215; DE 69717240 D1 20030102

DOCDB simple family (application)

EP 97122925 A 19971229; AT 97122925 T 19971229; DE 69717240 T 19971229