ES443965A1 - Method and furnace for combusting carbonaceous fuel - Google Patents

Method and furnace for combusting carbonaceous fuel

Info

Publication number
ES443965A1
ES443965A1 ES443965A ES443965A ES443965A1 ES 443965 A1 ES443965 A1 ES 443965A1 ES 443965 A ES443965 A ES 443965A ES 443965 A ES443965 A ES 443965A ES 443965 A1 ES443965 A1 ES 443965A1
Authority
ES
Spain
Prior art keywords
temperature
nitrogen oxides
combustion
mixture
air
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES443965A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Engelhard Minerals and Chemicals Corp
Original Assignee
Engelhard Minerals and Chemicals Corp
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
Priority claimed from US05/538,211 external-priority patent/US3982879A/en
Application filed by Engelhard Minerals and Chemicals Corp filed Critical Engelhard Minerals and Chemicals Corp
Publication of ES443965A1 publication Critical patent/ES443965A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/04—Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion Of Fluid Fuel (AREA)

Abstract

During the combustion of carbonaceous fuels at temperatures above 1800 DEG C in the presence of an at least stoichiometric quantity of air, major quantities of nitrogen oxides are formed. In order largely to avoid the formation of nitrogen oxides, the combustion is carried out in two stages, as follows: in the first stage (612), thermal combustion of a carbonaceous fuel (620) is carried out with a less than stoichiometric quantity of air (652). The exit gas from the first phase (612) is mixed with additional air (662) to form a mixture whose adiabatic flame temperature is above the auto-ignition temperature of the mixture. This mixture is burned in the presence of a catalyst (634) at a temperature above the auto-ignition temperature but below a temperature which would lead to a noticeable formation of nitrogen oxides.
ES443965A 1975-01-02 1975-12-30 Method and furnace for combusting carbonaceous fuel Expired ES443965A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/538,211 US3982879A (en) 1971-05-13 1975-01-02 Furnace apparatus and method

Publications (1)

Publication Number Publication Date
ES443965A1 true ES443965A1 (en) 1977-08-16

Family

ID=24145965

Family Applications (1)

Application Number Title Priority Date Filing Date
ES443965A Expired ES443965A1 (en) 1975-01-02 1975-12-30 Method and furnace for combusting carbonaceous fuel

Country Status (13)

Country Link
JP (1) JPS5193436A (en)
AU (1) AU503980B2 (en)
BE (1) BE837261A (en)
BR (1) BR7508735A (en)
CA (1) CA1036010A (en)
CH (1) CH611000A5 (en)
DE (1) DE2559070A1 (en)
ES (1) ES443965A1 (en)
FR (1) FR2296812A1 (en)
GB (1) GB1535330A (en)
IT (1) IT1052647B (en)
MX (1) MX143430A (en)
SE (1) SE424361B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54108024A (en) * 1978-02-14 1979-08-24 Babcock Hitachi Kk Double layered combustion process of low-pollution
EP0009523B1 (en) * 1978-10-02 1983-05-18 Exxon Research And Engineering Company A method of at least partially burning a hydrocarbon and/or carbonaceous fuel
US4930454A (en) * 1981-08-14 1990-06-05 Dresser Industries, Inc. Steam generating system
FR2532033B1 (en) * 1982-08-17 1986-03-14 Gemignani Andre PILOTED SAFETY VALVE
DE3823575A1 (en) * 1988-07-12 1990-01-18 Rothemuehle Brandt Kritzler METHOD FOR REDUCING NITROGEN OXIDES (NO (DOWN ARROW) X (DOWN ARROW)) FROM FIRE EXHAUST GASES
DE3905775A1 (en) * 1989-02-24 1990-08-30 Kat Tec Ges Fuer Katalysatorte METHOD AND DEVICE FOR REDUCING POLLUTANTS IN A COMBUSTION PROCESS WITH OXIDATION HONEYCOMB CATALYSTS AND CATALYSTS WITH DESULFURATION PROPERTIES AND EXHAUST GAS RECIRCULATION
US5044287A (en) * 1989-06-16 1991-09-03 Ebara Corporation Method of controlling combustion in a fluidized bed furnace
GB2269764A (en) * 1992-08-18 1994-02-23 Rolls Royce Plc A catalytic combustion chamber
NO312260B1 (en) * 2000-03-24 2002-04-15 Organic Power As Method and device for the conversion of energy by the combustion of solid fuel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3848412A (en) * 1970-03-06 1974-11-19 Philips Corp Method of supplying thermal energy to the heater of a hot-gas engine, as well as a hot-gas engine comprising a device for carrying out the method
US3816595A (en) * 1971-11-15 1974-06-11 Aqua Chem Inc Method and apparatus for removing nitrogen oxides from a gas stream
CA1003718A (en) * 1972-05-12 1977-01-18 William C. Pfefferle Method and furnace system for burning carbonaceous fuels
HU173841B (en) * 1974-12-11 1979-09-28 Energiagazdalkodasi Intezet Stoking process for the burning of combustible gases without intoxication and corrosion and equipment for the enhancement of the specific heating capacity

Also Published As

Publication number Publication date
FR2296812A1 (en) 1976-07-30
CH611000A5 (en) 1979-05-15
SE424361B (en) 1982-07-12
BE837261A (en) 1976-06-30
AU8797275A (en) 1977-07-07
IT1052647B (en) 1981-07-20
AU503980B2 (en) 1979-09-27
BR7508735A (en) 1976-08-24
SE7514721L (en) 1976-07-05
CA1036010A (en) 1978-08-08
JPS5193436A (en) 1976-08-16
MX143430A (en) 1981-05-12
GB1535330A (en) 1978-12-13
DE2559070A1 (en) 1976-07-08
FR2296812B1 (en) 1982-08-27

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