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EP0119086A2 - Système catalytique pour envoyer de la matière catalytique à une partie sélectionnée d'une chambre de combustion - Google Patents

Système catalytique pour envoyer de la matière catalytique à une partie sélectionnée d'une chambre de combustion Download PDF

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Publication number
EP0119086A2
EP0119086A2 EP84301632A EP84301632A EP0119086A2 EP 0119086 A2 EP0119086 A2 EP 0119086A2 EP 84301632 A EP84301632 A EP 84301632A EP 84301632 A EP84301632 A EP 84301632A EP 0119086 A2 EP0119086 A2 EP 0119086A2
Authority
EP
European Patent Office
Prior art keywords
catalytic material
air
fuel
zone
flame zone
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.)
Ceased
Application number
EP84301632A
Other languages
German (de)
English (en)
Other versions
EP0119086A3 (fr
Inventor
Ian T. Osgerby
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.)
Fuel Tech Inc
Original Assignee
Fuel Tech Inc
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 Fuel Tech Inc filed Critical Fuel Tech Inc
Publication of EP0119086A2 publication Critical patent/EP0119086A2/fr
Publication of EP0119086A3 publication Critical patent/EP0119086A3/fr
Ceased legal-status Critical Current

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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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J7/00—Arrangement of devices for supplying chemicals to fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/16—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour in which an emulsion of water and fuel is sprayed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam

Definitions

  • the present invention provides a system whereby the introduction of a c ⁇ talytic material into a high temperature zone of the combustion chamber during combustion can be continuously metered.
  • Catalytic material which materials may include one or more platinum group metals, can be introduced directly into the high temperature zone of the chamber.
  • the catalytic material is selected so that upon its entry into the high temperature zone of the chamber elemental platinum group metal or other catalyst is made available in a short period of time to the combustion process by decomposition or disassociation of material or otherwise.
  • the catalytic material may be conveyed to the high temperature zone by various vehicles such as air, fuel, steam or an emulsion.
  • rectilinear combustion unit 8 includes rectangular chamber opening 11 into which fuel injector gun unit 12 is projected.
  • Injector gun unit 12 includes fuel line 13 and diffuser head 14.
  • combustion chamber 10 is shown surrounded by air manifold housing 16.
  • the area between the chamber 10 and housing 16 serves as an air manifold 17.
  • Combustion air is forced by fan 18 along normal air intake duct 19 into manifold 17 and from manifold 17 air enters the combustion chamber 10 through opening 11.
  • Catalytic materials used include dihydrogen platinum hexachloride and other platinum compounds which decompose at temperatures lower than the temperatures found in the high temperature flame zone 20 of chamber 10 (see dotted line Fig. 2). Normally, 2600°F. to 3500°F. is the range of temperature found in the combustion chamber of a medium sized commercial steam generating boiler. Temperatures vary depending on the load placed on the chamber (See Figs. 7(a)-(d ⁇ .
  • catalytic material may be conveyed directly, without mixture blending or union with any other material, through catalyst material line 21 to head 14 from which discharge point the material is carried into flame zone 20 by fuel, steam or other fluids flowing into the zone 20.
  • liquid catalytic material may be introduced into auxiliary air line 22 using catalytic material feed line 23 and nozzle 24.
  • Catalytic air fed through line 22 may be directed and used to atomize the fuel just prior to its entry into the flame zone.
  • catalytic material can be introduced into steam line 26 through catalytic supply line 27.
  • the catalytic material can be introduced into the fuel by mixing the material with the fuel by introducing it through catalytic intake line 28 into feed fuel line 29.
  • the catalytic material may be mixed with fuel in mixer 31, to form an emulsion of catalytic material and fuel may be heated by heater 32 and introduced through fuel line 13 into zone 20.
  • catalytic material can be introduced into air duct 19 via nozzle 31 fed by catalytic material conduit 32.
  • steam flowing in steam line 26 divides to thereafter flow in steam ports 33.
  • Fuel from line 13 flows through fuel feed slots 34.
  • the fuel and steam mix, forming an emulsion.
  • the fuel/steam mixture is atomized into small droplets upon exiting the nozzle. Because part of the steam forms an emulsion with the oil, atomized oil droplets contain small droplets of water. Exposure to the flame causes boiling of the water droplets which explode (microexplosions), shattering the oil droplets into many smaller droplets and vapors.
  • Inclusion of catalyst with the steam thus affords a near optimal distribution of air/fuel/catalyst throughout the burning zone and, in particular, in the high temperature zone 20, causing rapid dissociation and, hence, activation of the precious metal atoms throughout the flame.
  • An emulsion of fuel and steam may be formed at a remote location and, with added or included catalyst, the emulsion can then be transported to the site of the combuston unit 8 for introduction into the chamber.
  • Air may be substituted for steam to atomize the oil in the fuel nozzle identical or similar to that of Fig. 14.
  • the benefits of catalyst injection are identical except that of the emulsion are, of course, excluded, i.e., with air atomization, no emulsion occurs, whereas emulsion does occur with steam atomization.
  • the application of the present invention to oil, gas and coal fired boilers requires selecting and controlling the point of introducion, direction of flow of the catalyst-carrying fluid introduced to meet the requirement that substantially all the catalyst admixed with the carrier fluid be introduced into the flame zone.
  • boiler 40 which includes chamber 41, burner diffuser head 42, air intake manifold 43 and flame zone 44 shown in dashed lines.
  • Tube section 46 is heated by the flow of gases from, around and through the flame zone 44 to exhaust stack 47.
  • the boiler of F ig. 5 is being fired at high load with low excess air creating a flame zone 44 which has a size and shape to substantially fill chamber 41 so that the normal intake of air entering the chamber 41 (see arrows 45) is introduced into the flame zone 44.
  • catalyst material being supplied via normal intake air will be introduced into the flame zone 44.
  • a platinum catalyst was introduced into a commercial boiler combustion chamber fed by a steam-fuel diffuser by installing an auxiliary air lance which lance delivered catalyst containing air to the diffuser head. Substantially all of the catalyst was introduced into the high temperature flame zone. Alternatively, catalyst was introduced via the steam to the diffuser. The boiler was also run for periods of time without use of a catalyst.
  • catalytic material used are illustrated by the following use of platinum-containing catalytic material:
  • Catalysts useful in the practice of the present invention include chloro platinic acid; (H 2 PtCl 6 .6H 2 O); platinum tetrachloride (PtCl4); ruthenium chloride (RuCl 3 :H 2 0); ruthenium oxide (RuO 2 .H 2 O) ; palladium nitrate (PD( N0 3 )2) ; palladium sulfate (PdSO 4 .2H 2 O) and rhodium nitrate (RH(NO 3 ) 3 .2H 2 O).
  • M gO manganese oxide
  • MnO manganese oxide
  • the catalyst introduction method selected for any particular combustion chamber including external and internal combustion systems depends on the combustion chamber design and the size and shape of the flame zone therein to be catalyzed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Air Supply (AREA)
  • Incineration Of Waste (AREA)
  • Catalysts (AREA)
  • Gas Burners (AREA)
EP84301632A 1983-03-10 1984-03-09 Système catalytique pour envoyer de la matière catalytique à une partie sélectionnée d'une chambre de combustion Ceased EP0119086A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US47395183A 1983-03-10 1983-03-10
US473951 1983-03-10

Publications (2)

Publication Number Publication Date
EP0119086A2 true EP0119086A2 (fr) 1984-09-19
EP0119086A3 EP0119086A3 (fr) 1985-06-19

Family

ID=23881655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84301632A Ceased EP0119086A3 (fr) 1983-03-10 1984-03-09 Système catalytique pour envoyer de la matière catalytique à une partie sélectionnée d'une chambre de combustion

Country Status (14)

Country Link
EP (1) EP0119086A3 (fr)
JP (1) JPS59197727A (fr)
KR (1) KR840008052A (fr)
AU (1) AU2540684A (fr)
BR (1) BR8401073A (fr)
DK (1) DK154384A (fr)
ES (1) ES530445A0 (fr)
FI (1) FI840972L (fr)
GR (1) GR81865B (fr)
IL (1) IL71167A0 (fr)
NO (1) NO840894L (fr)
PT (1) PT78218B (fr)
YU (1) YU41984A (fr)
ZA (1) ZA841679B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014043A1 (fr) * 1991-02-04 1992-08-20 International Marketing Affiliates Systeme ameliorant la combustion
WO2001051800A1 (fr) * 2000-01-14 2001-07-19 Bio-Friendly Corporation Procede d'apport de catalyseur liquide dans le cadre de processus de combustion
FR2837214A1 (fr) * 2002-03-12 2003-09-19 Marcel Bonnaud Procede pour combattre la formation des oxydes de soufre et d'azote resultant de la combustion des hydrocarbures liquides ou gazeux et du charbon et du bois
FR2875585A1 (fr) * 2004-09-23 2006-03-24 Snecma Moteurs Sa Systeme aerodynamique a effervescence d'injection air/carburant dans une chambre de combustion de turbomachine
WO2006037952A1 (fr) * 2004-10-01 2006-04-13 Lgr Llc Systeme de liberation de catalyseur

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5907816B2 (ja) * 2012-06-18 2016-04-26 関西電力株式会社 高温燃焼腐食試験装置
CN103322581B (zh) * 2013-07-09 2015-07-15 魏伯卿 富氧催化助燃装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE751648A (fr) * 1970-06-08 1970-11-16 Maingeot Raymond Procede pour ameliorer la combustion d'un combustible et pour diminuer,dans ses residus, la proportion d'elements nocifs et de pollution.
FR2329940A1 (fr) * 1975-10-30 1977-05-27 Fignier Julien Procede pour ameliorer les combustions
CA1050412A (fr) * 1977-11-01 1979-03-13 William A. Digdon Dispositif pour pulveriser un catalyseur dans un bruleur
US4295816A (en) * 1977-12-20 1981-10-20 Robinson B Joel Catalyst delivery system
SE8007314L (sv) * 1980-10-17 1982-04-18 Nilsson Carl Einar Forfarande och medel for att forbettra forbrenningen av brenslen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992014043A1 (fr) * 1991-02-04 1992-08-20 International Marketing Affiliates Systeme ameliorant la combustion
US5247909A (en) * 1991-02-04 1993-09-28 Advanced Combustion Technologies, Inc. Combustion enhancement system
WO2001051800A1 (fr) * 2000-01-14 2001-07-19 Bio-Friendly Corporation Procede d'apport de catalyseur liquide dans le cadre de processus de combustion
FR2837214A1 (fr) * 2002-03-12 2003-09-19 Marcel Bonnaud Procede pour combattre la formation des oxydes de soufre et d'azote resultant de la combustion des hydrocarbures liquides ou gazeux et du charbon et du bois
FR2875585A1 (fr) * 2004-09-23 2006-03-24 Snecma Moteurs Sa Systeme aerodynamique a effervescence d'injection air/carburant dans une chambre de combustion de turbomachine
EP1640661A3 (fr) * 2004-09-23 2006-04-19 Snecma Système aérodynamique à effervescence d'injection air/carburant dans une chambre de combustion de turbomachine
US7506496B2 (en) 2004-09-23 2009-03-24 Snecma Effervescent aerodynamic system for injecting an air/fuel mixture into a turbomachine combustion chamber
WO2006037952A1 (fr) * 2004-10-01 2006-04-13 Lgr Llc Systeme de liberation de catalyseur
RU2386078C2 (ru) * 2004-10-01 2010-04-10 ЭлДжиЭр ЭлЭлСи Система доставки каталитического аэрозоля и способ катализирования горения топлива
AU2005291124B2 (en) * 2004-10-01 2010-08-05 Lgr Llc Catalyst delivery system

Also Published As

Publication number Publication date
GR81865B (fr) 1984-12-12
JPS59197727A (ja) 1984-11-09
AU2540684A (en) 1984-09-13
PT78218A (fr) 1984-04-01
ZA841679B (en) 1984-10-31
DK154384D0 (da) 1984-03-09
FI840972A7 (fi) 1984-09-11
BR8401073A (pt) 1984-10-16
DK154384A (da) 1984-09-11
EP0119086A3 (fr) 1985-06-19
ES8506884A1 (es) 1985-07-16
YU41984A (en) 1987-06-30
NO840894L (no) 1984-09-11
KR840008052A (ko) 1984-12-12
FI840972A0 (fi) 1984-03-09
PT78218B (fr) 1986-04-23
IL71167A0 (en) 1984-06-29
FI840972L (fi) 1984-09-11
ES530445A0 (es) 1985-07-16

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Inventor name: OSGERBY, IAN T.