US3922136A - Catalytic gas converter - Google Patents

Catalytic gas converter Download PDF

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Publication number
US3922136A
US3922136A US421684A US42168473A US3922136A US 3922136 A US3922136 A US 3922136A US 421684 A US421684 A US 421684A US 42168473 A US42168473 A US 42168473A US 3922136 A US3922136 A US 3922136A
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US
United States
Prior art keywords
converting
mixing chamber
liquid fuel
gas
mixture
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 - Lifetime
Application number
US421684A
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English (en)
Inventor
Christian Koch
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Siemens AG
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Siemens AG
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Filing date
Publication date
Priority claimed from DE19722260586 external-priority patent/DE2260586C3/de
Application filed by Siemens AG filed Critical Siemens AG
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Publication of US3922136A publication Critical patent/US3922136A/en
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    • 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 
    • F23C99/00—Subject-matter not provided for in other groups of this subclass
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M27/00—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like
    • F02M27/02—Apparatus for treating combustion-air, fuel, or fuel-air mixture, by catalysts, electric means, magnetism, rays, sound waves, or the like by catalysts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/12—Radiant burners
    • F23D14/18—Radiant burners using catalysis for flameless combustion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D91/00—Burners specially adapted for specific applications, not otherwise provided for
    • F23D91/02—Burners specially adapted for specific applications, not otherwise provided for for use in particular heating operations
    • 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 
    • F23C2700/00—Special arrangements for combustion apparatus using fluent fuel
    • F23C2700/04—Combustion apparatus using gaseous fuel
    • F23C2700/043—Combustion apparatus using gaseous fuel for surface combustion
    • 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
    • F23C2900/03002—Combustion apparatus adapted for incorporating a fuel reforming device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2206/00—Burners for specific applications
    • F23D2206/0057—Liquid fuel burners adapted for use in illumination and heating
    • F23D2206/0063—Catalytic burners adapted for use in illumination and heating

Definitions

  • the present invention concerns an arrangement for the complete combustion of a liquid fuel but, particu larly. an arrangement utilizing catalytic gas converters.
  • the gaseous or vaporous fuel is combined with fed-back exhaust gas of the internal combustion engine and/or other gases serving as oxygen carriers.
  • an oxygen carrier such as air
  • the catalyst carrier can advantageously be in the form of highly porous sintered blocks with a large number of passage openings for the gas, which are arranged approximately parallel to each other.
  • the arrangement comprise a catalytic gas converter suitable also for heavy hydrocarbons, a radiation plate system and a mixing arrangement for mixing the fuel gas (reformed gas) generated by the catalytic converter with secondary air.
  • the catalytic gas converter is preferably designed so that the reformed gas generated in it has overpressure.
  • the mixing arrangement in one embodiment comprises mixing nozzles which are arranged between the catalytic converter and the radiation plate system advantageously in the form of a ring.
  • the mixing arrangement comprises a mixing chamber arranged between the catalytic converter and the radiation plate system.
  • the catalytic gas converter is preferably connected with the radiation plate system in such a manner that part of the exhaust gases is fed to it periodically or continuously.
  • FIG. 1 a schematic overall view of one arrangement according to the invention
  • FIG. 2 a plan view of the radiation plate system
  • FIG. 3 a cross section elevation view of another embodiment of the arrangement.
  • FIG. 1 is a schematic representation of an embodiment of this invention.
  • Catalytic gas converting cham ber 10 includes a fuel mixing chamber 12 which is positioned above and axially aligned with blower 13. Fuel is introduced into the fuel mixing chamber 12 via fuel feed line 14. An ignition device 16, is also suitably posi' tioned in the fuel mixing chamber 12.
  • the carburetor 18 includes a multiplicity of parallel openings 19 which tend to insure uniform distribution of the fuel as it proceeds axially along the length of the converting chamber 10.
  • the catalytic gas converter comprising one or several catalytic or non-catalytic perforated sintered blocks 22. These include a plurality of openings 24 which have their axes essentially parallel to each other and to the centerline of the chamber 10.
  • a mixing chamber 26 Positioned at the end 25 of the catalytic gas converting chamber 10, is a mixing chamber 26. This includes a cylindrical shaped portion 28 and a truncated conical section 30 interposed between the cylindrically shaped portion 28 and the gas converting chamber 10. On the side walls 32 of the truncated section 30, there is located a plurality of intake orifices 34. These orifices 34 are connected to an oxygen bearing gas supply which generally would be the air.
  • This ring plate 36 includes a plurality of mixing nozzles 38, the center line of which preferably is coaxially aligned substantially, with the center line of intake orifices 34.
  • the plate 40 Secured in a continuous fashion with the sidewalls of the cylindrical shaped portion 28 is a radiation plate 40.
  • a plan view of radiation plate 40 is shown in FIG. 2.
  • the plate 40 may be constructed from either a low thermal conductivity, highly porous, non-catalytic ma terial or, alternately, it may be constructed from a high thermal conductivity material with a finely-distributed, suitable catalyst disposed in the porous material.
  • the plate 40 includes a plurality of essentially parallel open ings 42 which communicate between the mixing chamber 26 and the exhaust side 43, of plate 40.
  • an exhaust gas feed line 44 which is connected therefrom back to the mixing chamber 12 via blower 13 through a valve arrangement 46.
  • This arrangement permits intermittent or continuous feedback of the exhaust gases to thereby provide an additional burning of the exhaust gases resulting in a 3 still further reduction of pollutants.
  • FIG. I The operation of the configuration of FIG. I would be as follows.
  • a suitable fuel containing liquid hydrocarbons such as gasoline, is supplied to the fuel mixing chamber 12 via fuel feed line 14.
  • Blower l3 forces air into the mixing chamber and the resultant mixture of air and fuel through the fuel distributor l8 and then across the catalytic, perforated sintered blocks 22. Pas sage of the fuel-air mixture as it comes from the fuel distributor I8 over the appropriately selected catalytic sintered blocks 22 produces a gas (so-called reformed gas) which contains essentially carbon monoxide, car bon dioxide, methane and/or hydrogen.
  • the reformed gas exits end 25 and enters the mixing chamber 26 at a velocity which is determined by the blower rate and diameter of openings 19 and 24. Because of the forcing of the fuel-air mixture and then the reformed gas through the gas converting chamber by blower 13, a pressure differential is created between the interior of the mixing chamber 26 and the exterior thereof which results in the oxygen bearing gas being sucked in through intake orifices 34 and mixed with the reformed gas by way of nozzles 38.
  • the design of the system is such that the pressure of the gas-air mixture as it exits from the nozzles 38 is suitable to overcome the subsequent flow resistance of the radiation plate.
  • the combined reformed gas-air mixture is next forced through the radiation plate 40.
  • the radiation plate 40 is constructed from the high thermally conductive, catalytic material
  • the reaction of the reformed gas and air as assisted by the material causes substantially higher temperatures than when the plate is made from the low thermally conductive, noncatalytic material.
  • the exhaust gases which exit from the radiating side of plate 40 although generally low in recognized pollutant content can be fed back to the mixing chamber 12 via the optional exhaust feedback line 44.
  • exhaust gases can be drawn back through the line 44 and sucked into the mixing chamber in much the same fashion as the air was drawn into the mixing chamber as described above.
  • Valve 46 can be adapted such that it continuously feeds back the exhaust gases or only periodically.
  • FIG. 3 describes an alternate embodiment within the scope of the present invention.
  • the catalytic gas converting chamber 10 contains essentially the same elements as its corresponding number in FIG. I, such member being identified with like numerals. I-Iere, however, instead of the air to be mixed with the reformed gas being introduced through orifices such as 34 in FIG. 1, the air is provided directly by blower 13.
  • the chamber 10 is surrounded by an outer shell 50.
  • the shell includes a portion 52 which is contoured to the shape of chamber 10 and a truncated cone section 54.
  • a passageway 55 is formed between the chamber and the outer shell. This connects the blower l3 directly to a mixing chamber 56 formed by the truncated cone section 54.
  • a mixing vane plate 57 Integral with the sidewalls of the truncated cone section 54 is a mixing vane plate 57 which forms an opening coaxial with the center line of chamber 10 through which the gas exiting from the gas converting chamber 10 must pass.
  • a radiation plate system 59 Positioned at the truncated end 58 of the shell 50 is a radiation plate system 59 which communicates therewith. It generally has an inverted truncated cone shape as depicted. Positioned axially away from end 58 is the radiation plate 60. Like its counterpart in FIG. 1 this 4 radiation plate is constructed of either a low thermal conductivity, highly porous material without catalyst or a high thermally conductive material including a finely distributed catalyst disposed therein. It further includes a plurality of openings 62 necessary to maintain the proper gas flow through the device.
  • the sidewall to which the radiation plate is affixed may be extended a distance beyond the exhaust side 63 of the radiation plate.
  • Exhaust gas feed line 64 may be positioned therethrough.
  • the control valve 66 Upon actuation of the control valve 66 the exhaust gases emanating from the radiation plate may be fed back through the valve into the mixing chamber I2, preferably via blower 13.
  • the operation of this device is as follows.
  • the oxygen bearing gas or air drawn in from outside the device by the blower I3 is divided into two gas streams. One of the gas streams is led to the fuel distributor 18, the other one which is provided for mixture with the reformed gas passes through the pas sageway S5.
  • the mixing vanes direct this second gas stream into the exhaust area from the gas converter 10, in which the vaporized fuel and the first gas stream are reacted to form the reformed gas.
  • the restricting orifice formed by the vanes forces the mixture of the air with this reformed gas,
  • the air-gas mixture is thrust into the radiation plate system 59 at a pressure suitable to overcome the subsequent flow resistance of the radiation plate. It thereafter dissiminates through the porous material of the plate 60 causing a high speed reaction at high temperatures which results in intensive radiation heat and the conversion of the gas-air mixture to a low pollutant form.
  • Additional refinement of the exhaust gas can be provided through the feedback of the exhaust gas, either on an intermittent or continuous basis through exhaust feed lines 64 and control valve 66.
  • the conversion of the liquid fuels into gases and the thorough mixing of these gases with air prior to the combustion by the arrangement according to the invention thus make possible complete combustion with negligible emission of harmful substances.
  • the heat transfer conditions and the efficiency are improved by the high combustion temperatures. By using a flameless burner, the heat transfer conditions are improved still further over the flame because of the higher radiation coefficient of the radiation plates.
  • An apparatus for the complete combustion of a liq uid fuel which comprises:
  • a means for converting said liquid fuel to a reformed gas containing carbon monoxide, carbon dioxide, and at least one of the group consisting of methane and hydrogen;
  • a radiation plate having a plurality of essentially parallel openings therethrough, one side of said openings being coupled to said means for producing a mixture so as to conduct said mixture from said means for producing through said parallel openings to the other side of said radiation plate said radiation plate adapted to react with said mixture as it passes through openings to produce substantially complete combustion of said liquid fuel.
  • An apparatus for the complete combustion of a liquid fuel which comprises:
  • a ring plate having a plurality of mixing nozzles positioned thereon said nozzles bearing a predetermined relationship to said orifices and the exhaust orifice of said converting means to thereby mix said oxygen bearing gas with said reformed gas in a prescribed mixture of both;
  • a radiation plate containing a plurality of essentially parallel openings having inputs coupled to the output of said first mixing chamber and adapted to react with said mixture to produce substantially completed combustion of said liquid fuel as said mixture passes through said openings.
  • the apparatus of claim 4 further including means for feeding back the exhaust gases produced by said ra- 5 diation plate means to a second mixing chamber located between said blower means and said converting means to be mixed therein with fuel and oxygen bearing gas.
  • An apparatus for the complete combustion of a liquid fuel which comprises:
  • a. means for converting the liquid fuel to a reformed b. a first mixing chamber coupled to the outlet of said means for converting;
  • passageway means communicating between said blower means and said first mixing chamber, said blower means forcing an oxygen bearing gas into said passageway;
  • mixing vane means secured to the walls of said first mixing chamber and adapted to direct the oxygen bearing gas exiting from said passageway into the path of said exiting reformed gas;
  • a radiation plate containing a plurality of essentially parallel openings having inputs coupled to the output of said first mixing chamber and adapted to react with said mixture to produce substantially complete combustion of said liquid fuel as said mixture passes through said openings.
  • the apparatus of claim 6 further including means for feeding back the exhaust gases produced by said radiation plate means to a second mixing chamber located between said blower means and said converting means to be mixed therein with fuel and oxygen bearing gas.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Spray-Type Burners (AREA)
  • Combustion Of Fluid Fuel (AREA)
US421684A 1972-12-11 1973-12-04 Catalytic gas converter Expired - Lifetime US3922136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722260586 DE2260586C3 (de) 1972-12-11 Strahlungsbrenner zur vollständigen Verbrennung eines flüssigen Brennstoffes

Publications (1)

Publication Number Publication Date
US3922136A true US3922136A (en) 1975-11-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US421684A Expired - Lifetime US3922136A (en) 1972-12-11 1973-12-04 Catalytic gas converter

Country Status (9)

Country Link
US (1) US3922136A (de)
JP (1) JPS4987919A (de)
BE (1) BE808294A (de)
CA (1) CA1003743A (de)
FR (1) FR2209895B1 (de)
GB (1) GB1433010A (de)
IT (1) IT1002208B (de)
NL (1) NL7314826A (de)
SE (1) SE401252B (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122826A (en) * 1975-12-25 1978-10-31 Katumi Suzuki Submersible body warmer apparatus
US4230443A (en) * 1978-03-15 1980-10-28 Siemens Aktiengesellschaft Vaporizing burner
US4439136A (en) * 1980-05-13 1984-03-27 The United States Of America As Represented By Administrator Of Environmental Protection Agency Thermal shock resistant spherical plate structures
US4531908A (en) * 1980-04-11 1985-07-30 Kernforschungsanlage Julich Gmbh Ceramic burner head
US4551089A (en) * 1984-07-30 1985-11-05 Dowa Company, Ltd. Evaporation burner
US4766878A (en) * 1986-02-10 1988-08-30 Nippon Chemical Plant Consultant Co., Ltd. Far-infrared radiating system
US5586877A (en) * 1995-07-20 1996-12-24 A.J.C. Infrared ray emitters with catalytic burner
US6000930A (en) * 1997-05-12 1999-12-14 Altex Technologies Corporation Combustion process and burner apparatus for controlling NOx emissions
US6129545A (en) * 1996-11-26 2000-10-10 Schott Glaswerke Gas burner with pollution-reducing features
US6302683B1 (en) * 1996-07-08 2001-10-16 Ab Volvo Catalytic combustion chamber and method for igniting and controlling the catalytic combustion chamber
US6599119B1 (en) * 2001-02-13 2003-07-29 Entropy Technology And Environmental Consultants, Lp Apparatus and method to control emissions of nitrogen oxide
WO2003101890A1 (en) * 2002-06-03 2003-12-11 Nissan Motor Co.,Ltd. Combustor, fuel reforming device, fuel cell system and method for starting up the fuel reforming system
US20060242903A1 (en) * 2002-06-24 2006-11-02 Maxim Lyubovsky Apparatus for use for methane oxidation
US20080141584A1 (en) * 2006-12-14 2008-06-19 Texaco Inc. Methods for Using a Catalyst Preburner in Fuel Processing Applications
US20090101018A1 (en) * 2007-10-23 2009-04-23 Wen-Hwa Wang Turbulence device used for air filtration system
US20100088921A1 (en) * 2008-10-15 2010-04-15 Bergaglio Osvaldo Apparatus for drying a painting product and operating method thereof
US9062880B2 (en) 2010-04-14 2015-06-23 Selas Heat Technology Company Llc Method and apparatus for extraction and recovery of water-soluble volatile gas, water vapor and waste heat from stack gas
CN116060574A (zh) * 2023-04-07 2023-05-05 山西金瑞高压环件有限公司 室式天然气节能减排锻造加热炉

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127923A (en) * 1975-04-30 1976-11-08 Nissan Motor Co Ltd Thermal engine

Citations (11)

* Cited by examiner, † Cited by third party
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US1732412A (en) * 1925-06-25 1929-10-22 Charles D Montague Combustion method and furnace combustion chamber
US3068812A (en) * 1959-05-07 1962-12-18 Wesley C L Hemeon Method and apparatus for incinerating combustible wastes
US3173470A (en) * 1961-11-17 1965-03-16 Gen Precision Inc Gas-fueled radiant heater
US3199568A (en) * 1961-07-05 1965-08-10 Herbert Baumanns Oil heating appliance
US3199505A (en) * 1962-05-09 1965-08-10 Lockheed Aircraft Corp Catalytic combustor type heating devices
US3228451A (en) * 1957-06-25 1966-01-11 Urquhart S 1926 Ltd Method of burning fuels
US3418979A (en) * 1966-09-06 1968-12-31 Vaillant Joh Kg Instantaneous water heater heated by a vaporised oil burner
US3421859A (en) * 1964-12-30 1969-01-14 Whirlpool Co Inert atmosphere generator
US3734677A (en) * 1970-08-12 1973-05-22 Matsushita Electric Ind Co Ltd Liquid fuel burner
US3787168A (en) * 1972-08-23 1974-01-22 Trw Inc Burner assembly for providing reduced emission of air pollutant
US3832122A (en) * 1971-11-15 1974-08-27 Aqua Chem Inc Reduction of nitrogen oxides from products of hydrocarbon combustion with air

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4311430Y1 (de) * 1967-05-29 1968-05-17

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732412A (en) * 1925-06-25 1929-10-22 Charles D Montague Combustion method and furnace combustion chamber
US3228451A (en) * 1957-06-25 1966-01-11 Urquhart S 1926 Ltd Method of burning fuels
US3068812A (en) * 1959-05-07 1962-12-18 Wesley C L Hemeon Method and apparatus for incinerating combustible wastes
US3199568A (en) * 1961-07-05 1965-08-10 Herbert Baumanns Oil heating appliance
US3173470A (en) * 1961-11-17 1965-03-16 Gen Precision Inc Gas-fueled radiant heater
US3199505A (en) * 1962-05-09 1965-08-10 Lockheed Aircraft Corp Catalytic combustor type heating devices
US3421859A (en) * 1964-12-30 1969-01-14 Whirlpool Co Inert atmosphere generator
US3418979A (en) * 1966-09-06 1968-12-31 Vaillant Joh Kg Instantaneous water heater heated by a vaporised oil burner
US3734677A (en) * 1970-08-12 1973-05-22 Matsushita Electric Ind Co Ltd Liquid fuel burner
US3832122A (en) * 1971-11-15 1974-08-27 Aqua Chem Inc Reduction of nitrogen oxides from products of hydrocarbon combustion with air
US3787168A (en) * 1972-08-23 1974-01-22 Trw Inc Burner assembly for providing reduced emission of air pollutant

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122826A (en) * 1975-12-25 1978-10-31 Katumi Suzuki Submersible body warmer apparatus
US4230443A (en) * 1978-03-15 1980-10-28 Siemens Aktiengesellschaft Vaporizing burner
US4531908A (en) * 1980-04-11 1985-07-30 Kernforschungsanlage Julich Gmbh Ceramic burner head
US4439136A (en) * 1980-05-13 1984-03-27 The United States Of America As Represented By Administrator Of Environmental Protection Agency Thermal shock resistant spherical plate structures
US4551089A (en) * 1984-07-30 1985-11-05 Dowa Company, Ltd. Evaporation burner
US4766878A (en) * 1986-02-10 1988-08-30 Nippon Chemical Plant Consultant Co., Ltd. Far-infrared radiating system
US5586877A (en) * 1995-07-20 1996-12-24 A.J.C. Infrared ray emitters with catalytic burner
US6302683B1 (en) * 1996-07-08 2001-10-16 Ab Volvo Catalytic combustion chamber and method for igniting and controlling the catalytic combustion chamber
US6129545A (en) * 1996-11-26 2000-10-10 Schott Glaswerke Gas burner with pollution-reducing features
US6000930A (en) * 1997-05-12 1999-12-14 Altex Technologies Corporation Combustion process and burner apparatus for controlling NOx emissions
US6599119B1 (en) * 2001-02-13 2003-07-29 Entropy Technology And Environmental Consultants, Lp Apparatus and method to control emissions of nitrogen oxide
WO2003101890A1 (en) * 2002-06-03 2003-12-11 Nissan Motor Co.,Ltd. Combustor, fuel reforming device, fuel cell system and method for starting up the fuel reforming system
US20050019623A1 (en) * 2002-06-03 2005-01-27 Tadashi Shoji Combustor, fuel reforming device, fuel cell system and method for starting up the fuel reforming system
US20060242903A1 (en) * 2002-06-24 2006-11-02 Maxim Lyubovsky Apparatus for use for methane oxidation
US20080141584A1 (en) * 2006-12-14 2008-06-19 Texaco Inc. Methods for Using a Catalyst Preburner in Fuel Processing Applications
US20090101018A1 (en) * 2007-10-23 2009-04-23 Wen-Hwa Wang Turbulence device used for air filtration system
US7704293B2 (en) * 2007-10-23 2010-04-27 Institute Of Nuclear Energy Research Turbulence device used for air filtration system
US20100088921A1 (en) * 2008-10-15 2010-04-15 Bergaglio Osvaldo Apparatus for drying a painting product and operating method thereof
US8291610B2 (en) * 2008-10-15 2012-10-23 Symach S.R.L. Apparatus for drying a painting product and operating method thereof
US9062880B2 (en) 2010-04-14 2015-06-23 Selas Heat Technology Company Llc Method and apparatus for extraction and recovery of water-soluble volatile gas, water vapor and waste heat from stack gas
CN116060574A (zh) * 2023-04-07 2023-05-05 山西金瑞高压环件有限公司 室式天然气节能减排锻造加热炉

Also Published As

Publication number Publication date
NL7314826A (de) 1974-06-13
JPS4987919A (de) 1974-08-22
BE808294A (fr) 1974-03-29
FR2209895A1 (de) 1974-07-05
DE2260586A1 (de) 1974-06-12
SE401252B (sv) 1978-04-24
IT1002208B (it) 1976-05-20
CA1003743A (en) 1977-01-18
FR2209895B1 (de) 1977-06-10
DE2260586B2 (de) 1977-05-18
GB1433010A (en) 1976-04-22

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