BRPI0705223A2 - mÉtodo para reduzir emissÕes de àxido de nitrogÊnio de uma caldeira de recuperaÇço, e, caldeira de recuperaÇço - Google Patents

mÉtodo para reduzir emissÕes de àxido de nitrogÊnio de uma caldeira de recuperaÇço, e, caldeira de recuperaÇço

Info

Publication number
BRPI0705223A2
BRPI0705223A2 BRPI0705223-5A BRPI0705223A BRPI0705223A2 BR PI0705223 A2 BRPI0705223 A2 BR PI0705223A2 BR PI0705223 A BRPI0705223 A BR PI0705223A BR PI0705223 A2 BRPI0705223 A2 BR PI0705223A2
Authority
BR
Brazil
Prior art keywords
nozzles
liquor
recovery boiler
air
reducing nitrogen
Prior art date
Application number
BRPI0705223-5A
Other languages
English (en)
Inventor
Antti Raukola
Matti Ylitalo
Original Assignee
Metso Power Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Power Oy filed Critical Metso Power Oy
Publication of BRPI0705223A2 publication Critical patent/BRPI0705223A2/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/12—Combustion of pulp liquors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2201/00—Staged combustion
    • F23C2201/10—Furnace staging
    • F23C2201/101—Furnace staging in vertical direction, e.g. alternating lean and rich zones
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/06041—Staged supply of oxidant

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Paper (AREA)
  • Treating Waste Gases (AREA)
  • Air Supply (AREA)

Abstract

MÉTODO PARA REDUZIR EMISSÕES DE àXIDO DE NITROGÊNIO DE UMA CALDEIRA DE RECUPERAÇçO, E, CALDEIRA DE RECUPERAÇçO. Método para reduzir óxidos de nitrogênio de uma caldeira de recuperação, e uma caldeira de recuperação onde a fornalha (2) da caldeira de recuperação é suprida com ar primário a partir de bocais de ar primário (4), licor negro de bocais de licor (6a, 6b), ar secundário a partir de bocais de ar secundário (5) acima dos bocais de ar primário (4) porém ainda abaixo dos bocais de licor (6a, 6b), ar terciário a partir de bocais de ar terciário (7) acima dos bocais de licor (6a, 6b) de ar quaternário a partir de bocais de ar quaternários (8) acima dos bocais de ar terciário (7). Licor negro é suprido para a fornalha (2) a partir dos primeiros bocais de licor (6a) e segundos bocais de licor (6b), cujos bocais de licor (6a, 6b) são arranjados substancialmente no mesmo nível em relação à altura da fornalha (2) e a dimensão de gotículas de licor alimentadas a partir dos segundos bocais de licor (6b) é substancialmente menor do que a dimensão de goticulas de licor alimentadas a partir dos primeiros bocais de licor (6a).
BRPI0705223-5A 2006-06-21 2007-06-21 mÉtodo para reduzir emissÕes de àxido de nitrogÊnio de uma caldeira de recuperaÇço, e, caldeira de recuperaÇço BRPI0705223A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20065429A FI122982B (fi) 2006-06-21 2006-06-21 Menetelmä soodakattilan typpioksidipäästöjen vähentämiseksi ja soodakattila

Publications (1)

Publication Number Publication Date
BRPI0705223A2 true BRPI0705223A2 (pt) 2008-12-16

Family

ID=36651524

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0705223-5A BRPI0705223A2 (pt) 2006-06-21 2007-06-21 mÉtodo para reduzir emissÕes de àxido de nitrogÊnio de uma caldeira de recuperaÇço, e, caldeira de recuperaÇço

Country Status (5)

Country Link
US (1) US20070295249A1 (pt)
EP (1) EP1873450A3 (pt)
BR (1) BRPI0705223A2 (pt)
CA (1) CA2592178A1 (pt)
FI (1) FI122982B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123853B (fi) * 2009-03-06 2013-11-15 Metso Power Oy Menetelmä typenoksidipäästöjen vähentämiseksi happipoltossa
CN104748147B (zh) * 2015-02-28 2017-03-01 烟台龙源电力技术股份有限公司 墙式对冲燃烧锅炉的燃烧方法
CN115727317B (zh) * 2022-11-22 2025-07-25 中国大唐集团科学技术研究院有限公司中南电力试验研究院 一种电站锅炉燃烧器三次风优化布置的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI43945B (pt) * 1968-03-01 1971-03-31 Tampella Oy Ab
US5305698A (en) * 1989-04-04 1994-04-26 Blackwell Brian R Method and apparatus for improving fluid flow and gas mixing in boilers
FI925305A0 (fi) * 1992-11-23 1992-11-23 Polyrec Ab Oy Foerfarande och anordning foer inmatning av foerbraenningsluft i en eldstad
SE503453C2 (sv) * 1994-06-20 1996-06-17 Kvaerner Pulping Tech Sodapanna med ett sekundärlufttillflöde som åstadkommer en rotation av förbränningsgaserna och en förträngning av pannan ovanför lutinsprutningen samt ett förfarande vid en sådan panna
US5715763A (en) * 1995-09-11 1998-02-10 The Mead Corporation Combustion system for a black liquor recovery boiler
FI102410B (fi) * 1997-02-07 1998-11-30 Kvaerner Power Oy Menetelmä ja sovitelma ilman syöttämiseksi soodakattilaan
US6237513B1 (en) * 1998-12-21 2001-05-29 ABB ALSTROM POWER Inc. Fuel and air compartment arrangement NOx tangential firing system
US7185594B2 (en) * 2003-07-03 2007-03-06 Clyde Bergemann, Inc. Method and apparatus for improving combustion in recovery boilers
FI120186B (fi) * 2004-06-03 2009-07-31 Andritz Oy Menetelmä typpioksidipäästöjen vähentämiseksi
US8607718B2 (en) * 2007-03-28 2013-12-17 Babcock & Wilcox Power Generation Group, Inc. Recovery boiler combustion air system with intermediate air ports vertically aligned with multiple levels of tertiary air ports

Also Published As

Publication number Publication date
FI20065429L (fi) 2007-12-22
FI20065429A0 (fi) 2006-06-21
EP1873450A3 (en) 2013-07-31
CA2592178A1 (en) 2007-12-21
EP1873450A2 (en) 2008-01-02
FI122982B (fi) 2012-09-28
US20070295249A1 (en) 2007-12-27

Similar Documents

Publication Publication Date Title
SG139666A1 (en) Method and apparatus to facilitate reducing nox emissions in turbine engines
WO2010008725A3 (en) Circulating fluidized bed boiler and method of operation
MY164718A (en) Apparatus and method of controlling the thermal performance of an oxygen-fired boiler
AU2003261754B2 (en) Combustion apparatus and window box
BRPI1009998A2 (pt) método para reduzir emissões de óxido de nitrogênio em combustão de oxicombustível
JP2007275715A (ja) 湿式排煙脱硫装置
BRPI0705223A2 (pt) mÉtodo para reduzir emissÕes de àxido de nitrogÊnio de uma caldeira de recuperaÇço, e, caldeira de recuperaÇço
CN103706241B (zh) 用于循环流化床锅炉全负荷工况的sncr烟气脱硝方法
JP5022248B2 (ja) ボイラ構造
US20130068175A1 (en) Boiler and a superheater, as well as a method
EP3279563B1 (en) Combustion burner and boiler provided therewith
CA2429838A1 (en) Method and apparatus for a simplified primary air system for improving fluid flow and gas mixing in recovery boilers
KR101546219B1 (ko) 재가열 버너 및 재가열 버너 내에서 연료/이송 공기 흐름을 혼합하는 방법
CN102588955B (zh) 减少氮氧化物排放的燃烧系统
JP6109718B2 (ja) ボイラ
KR20130047091A (ko) 순환유동층 보일러의 에어 노즐
BR0201616A (pt) Método em uma caldeira de recuperação de soda, e, caldeira de recuperação de soda
BRPI0517687A (pt) processo e torre de pulverização para estabelecer contato com gases e gotas de lìquido para a troca de matéria e/ou calor
JP6116545B2 (ja) 焼却炉における燃焼運転方法
JP2010139182A (ja) 旋回燃焼ボイラ
JP4141350B2 (ja) 燃焼装置
JP5800423B2 (ja) バーナおよびこれを備えたボイラ
JP2016118330A (ja) 燃焼バーナ及びボイラ
BR9812938A (pt) Processo para a gaseificação de licor negro em caldeiras de recuperação
JP6087796B2 (ja) ボイラ

Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 7A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2260 DE 29/04/2014.