SE8602249L - STEEL BOAT WITH CATALYTIC Flue gas Treatment AND PROCEDURE FOR OPERATING THE BOILER - Google Patents

STEEL BOAT WITH CATALYTIC Flue gas Treatment AND PROCEDURE FOR OPERATING THE BOILER

Info

Publication number
SE8602249L
SE8602249L SE8602249A SE8602249A SE8602249L SE 8602249 L SE8602249 L SE 8602249L SE 8602249 A SE8602249 A SE 8602249A SE 8602249 A SE8602249 A SE 8602249A SE 8602249 L SE8602249 L SE 8602249L
Authority
SE
Sweden
Prior art keywords
economiser
line
valve
gas treatment
pump
Prior art date
Application number
SE8602249A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE461421B (en
SE8602249D0 (en
Inventor
B Stensboel
Original Assignee
Burmeister & Wains As
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 Burmeister & Wains As filed Critical Burmeister & Wains As
Publication of SE8602249D0 publication Critical patent/SE8602249D0/en
Publication of SE8602249L publication Critical patent/SE8602249L/en
Publication of SE461421B publication Critical patent/SE461421B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/008—Adaptations for flue gas purification in steam generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • F22D1/12—Control devices, e.g. for regulating steam temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Biomedical Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

Two bypass lines (12, 14) are provided between the feed-water inlet line (5) into the economiser (6) of the steam generator and the outlet line (8) from the economiser. The line (12) more remote from the economiser contains a valve (13), preferably a modulating valve, while the bypass line (14) connected closer to the economiser contains a circulation pump (15). If the steam generator is operated in an upper load range from full load down to, for example, 70%, the valve (13) remains closed and the pump (15) is stationary. At lower loads, the pump (15) is allowed to deliver heated feed water from the outlet line (8) to the inlet line (15) and the valve (13) is kept more or less open. In this way, the load-dependent variation of the flue-gas temperature after the economiser is reduced and the operating conditions for a unit, fitted at this location, for catalytic flue-gas treatment are improved. <IMAGE>
SE8602249A 1985-05-21 1986-05-16 OPERATOR WITH CATALYTIC SMOKE GAS TREATMENT AND PROCEDURE FOR OPERATING THE BOILER SE461421B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK225185A DK154731C (en) 1985-05-21 1985-05-21 Steam boiler with catalytic flue gas treatment as well as boiler operation

Publications (3)

Publication Number Publication Date
SE8602249D0 SE8602249D0 (en) 1986-05-16
SE8602249L true SE8602249L (en) 1986-11-22
SE461421B SE461421B (en) 1990-02-12

Family

ID=8111089

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8602249A SE461421B (en) 1985-05-21 1986-05-16 OPERATOR WITH CATALYTIC SMOKE GAS TREATMENT AND PROCEDURE FOR OPERATING THE BOILER

Country Status (3)

Country Link
DE (1) DE3616095C2 (en)
DK (1) DK154731C (en)
SE (1) SE461421B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59206233D1 (en) * 1991-12-23 1996-06-13 Abb Management Ag Method for operating a forced-flow steam generator and a forced-flow steam generator therefor
DE4218016A1 (en) * 1992-06-01 1993-12-02 Siemens Ag Method and device for controlling the flue gas temperature at the outlet of a steam generator
EP0582898A1 (en) * 1992-08-10 1994-02-16 Siemens Aktiengesellschaft Method of operating a steam and gas turbine system and system for carrying out the method
EP0595009B1 (en) * 1992-09-30 1996-01-10 Siemens Aktiengesellschaft Method of operating a power plant and power plant working according to this method
US5361827A (en) * 1992-12-29 1994-11-08 Combustion Engineering, Inc. Economizer system for vapor generation apparatus
DE4310009C2 (en) * 1993-03-27 1996-04-04 Muellkraftwerk Schwandorf Betr Method and device for generating steam in a thermal power station
DE19929088C1 (en) 1999-06-24 2000-08-24 Siemens Ag Fossil fuel heated steam generator e.g. for power station equipment
DE102013001440A1 (en) * 2013-01-29 2014-07-31 Rwe Power Aktiengesellschaft Method for controlling flue gas temperature at brown coal boiler with downstream wet flue gas desulphurization, involves directly introducing cooling fluid into flue gas flow when actual temperature of flue gas exceeds reference value

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818872A (en) * 1973-06-29 1974-06-25 Combustion Eng Economizer bypass for increased furnace wall protection
DE3344712C1 (en) * 1983-12-10 1985-04-18 Balcke-Dürr AG, 4030 Ratingen Steam generator

Also Published As

Publication number Publication date
DK225185A (en) 1986-11-22
DK154731C (en) 1989-05-08
DK154731B (en) 1988-12-12
DE3616095C2 (en) 1993-11-25
DK225185D0 (en) 1985-05-21
SE461421B (en) 1990-02-12
DE3616095A1 (en) 1986-11-27
SE8602249D0 (en) 1986-05-16

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