US3784353A - Flameless gas catalytic heater - Google Patents

Flameless gas catalytic heater Download PDF

Info

Publication number
US3784353A
US3784353A US00221682A US3784353DA US3784353A US 3784353 A US3784353 A US 3784353A US 00221682 A US00221682 A US 00221682A US 3784353D A US3784353D A US 3784353DA US 3784353 A US3784353 A US 3784353A
Authority
US
United States
Prior art keywords
layer
combustible gas
gas
shield
catalytically active
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
US00221682A
Inventor
G Chapurin
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3784353A publication Critical patent/US3784353A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the catalytically active layer attributing to oxidation of the flow ofa combustible gas passed therethrough to carbonic-acid gas and water and, therefore, providing for a flameless combustion" and heating of some object serves as the working body.
  • the catalytically active layer is confined within a cylindrical or rectangular body in such a manner that its one surface is essentially open and serves as a working surface radiating heat; in order to decrease sharply the heat losses of the surface through which the hot gas is delivered inside the catalytically active layer, this surface is thermally insulated by means of a layer made from a gas-proof material.
  • a common disadvantage of conventional flameless gas catalytic heaters lies in non-uniform distribution of the temperature field along the surface of the catalytically active layer. As it is known, the central portion of the radiating surfaces is the hottest, and the portions adjoining the side walls of the body are the coldest. This is explained by great heat losses occurring through the side walls of the heater body. This disadvantage results in an incomplete (SO-90 percent) oxidation of the combustible gas and an appearance of carbonic-acid gas in combustion products.
  • the present invention has as its purposethe provision of a sufficiently effective insulation of mainly side walls oi the body.
  • the walls of thebody lodging catalytically active heatinsulating layers are made hollow, and their internal surfaces confining a space inside the walls are made from a material having a high coefficient of reflection of thermal rays.
  • the space in the walls of the body may be filledwith some inert gas.
  • This design of the walls of the body makes it possible to raise the degree of the combustible gas oxidation up to 100 percent.
  • the heater comprises a body 1 which may be of any shape, such as rectangular, cylindrical, etc.
  • the side walls of the body 1 are made hollow. Internal surfaces 2 forming a space 3 inside the side walls are coated with a material having a high coefficient of reflection of thermal rays. Any conventional material of the kind, for instance aluminium, burnished stainless steel, etc., may be used as this material.
  • the space 3 may be filled with some gas, preferably an inert gas, in which case the danger of explosion is eliminated.
  • some gas preferably an inert gas
  • the danger of explosion is eliminated.
  • the greatest effect of decreasing the heat losses is ensured by a providing vacuum in the space 3.
  • a working member which is essentially a layer 4 made from some fibrous material, such as asbestos, silica, basaltic fiber, etc., impregnated with a catalyst of deep oxidation of carbonic-acid gases. Palladium, platinum, oxides of chromium, cobalt, copper, manganese, etc. are used as the catalyst.
  • the body 1 is designed in such a manner that a surface 5 of the layer 4 is open and serves a heatradiating surface.
  • a layer 6 Disposed immediately under the layer 4 is a layer 6 made from a porous heat-insulating material, such as asbestos, silica or basaltic fiber, which is not impregnated with the catalyst.
  • a gas-distributing device Mounted on the body 1 at the side of the disposition of the porous heat-insulating layer is a gas-distributing device, which is fashioned as a pipe battery 7 located in a chamber 8 of the body I. The walls of the pipe battery 7 are punched through.
  • the heat-insulating layer 6 rests on a carrying shield 9 made from steel or aluminium and provided with a plurality of through holes.
  • a metallic large-cell grid 10 used to protect the surface 5 of the layer 4 against mechanical damage.
  • the grid 10 is pressed against the body I with the aid of a cover 11 having a port or opening 12.
  • the cover 11 is secured to the body I with bolts 13.
  • the heater is provided with a thermal electric element 14 used for preheating the layer 4.
  • the free end portions of the thermal electric element 14 are led through the bottom at the body 1 into a special explosion-proot box 15, with the elimination of the explosion possibility being ensured by a hermetic sealing of the box 15.
  • Electric current is supplied to the thermal electric element via a cable (not shown in the drawing) which is introduced into the box 15 through a rubber sealing (not shown in the drawing).
  • the above-described flameless gas catalytic heater operates as follows.
  • gas is delivered along a gas-supply line into a pipe branch 16.
  • a natural gas such as propane, butane, refinery gas, city gas and coke gas, may be used as such gas.
  • propane, butane, refinery gas, city gas and coke gas may be used as such gas.
  • the combustible gas While flowing out of the holes of the pipe battery 7 of the gas-distributing device, the combustible gas is uniformly distributed in the chamber 8, and, having passed through the pores of the heat-insulating layer 6, is delivered uniformly into the catalytically active layer 4.
  • the combustible gas starts reacting with the oxygen of the air in the pores of the catalytically active layer 4 which is preheated by the thermal electric element to a temperature of the beginning of the oxidation reaction.
  • combustion products i.e., carbonic-acid gas and water
  • the combustion products formed as a result ofthe reaction of the catalytic oxidation of the combustible gas, as well as free nitrogen of the air, are discharged into the atmosphere under the action of the thrust of the combustible gas delivered into the heater.
  • a uniform temperature falling within the range of 200+400C and depending on the amount of the combustible gas supplied to be combusted is provided uniformly along the whole radiating surface 5.
  • the heat load of the heater is set by varying the amount of the combustible gas supplied to be combusted.
  • the maximum amount of the radiant energy is radiated by the radiating surface of the layer 4 within the wave length range of 3.5-5.6 microns. Within the working range of the heat loads in the combustion products there takes place practically no chemical incomplete combustion of the combustible gas.
  • a flameless gas catalytic heater comprising a body defined by wall means including side walls having a sealed internal space; a material having a high coefficient of reflection of thermal rays provided on the inside of the side walls forming the internal space; a catalytically active porous layer through which combustible gases are passed and which ensures catalytic oxidation of the combustible gas; said layer being positioned within the body with at least its perimeter in contact with said side walls means; said layer having an open surface along which the products of oxidation of said combustible gas which has passed through this layer are delivered into the ambient atmosphere from the body; said catalytically active layer having a second surface along which said combustible gas is supplied inside said layer; and a heat-insulating porous layer adjoining the second surface of said catalytically active layer; said combustible gas also being passed through said heat insulating layer.
  • a flameless gas catalytic heater comprising a body having a sealed hollow side wall, a bottom shield having a plurality of holes therein, and a cover having an opening therein, the inside of the hollow side wall being provided with a material having a high coefficient of reflection of thermal rays, a catalytically active porous layer within the body through which combustible gases are passed and which ensures catalytic oxidation of the combustible gas, said layer having an open surface facing the opening in the cover along which the products of oxidation of the combustible gas which is passed through the layer are delivered into the ambient atmosphere through the opening in the cup, said catalytically active layer having a second surface along which the combustible gas is supplied inside the layer, a heat insulating porous layer between said second surface and said shield through which the combustible gas passes, a chamber adjacent the shield in communication with the heat insulating porous layer via the holes in the shield, an apertured pipe battery located within the chamber in communication with a source of

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Abstract

Flameless gas catalytic heaters for local heating in explosive environments and installations whose operating principle is predicated on the catalytic oxidation of combustible gases as they pass through a porous catalytically active bed positioned in a heater housing whose side walls are hollow along the perimeter of the active bed and covered inside with a material having a high heat reflection coefficient.

Description

United States Patent [191 Chapurin Jan. 8, 1974 FLAMELESS GAS CATALYTIC HEATER [76] Inventor: Gennady Alexandrovich Chapurin,
ulitsa Kadischeva 3, kv. 49, Saratov, U.S.S.R.
22] Filed: Jan. 28, 1972 211 App]. No.: 221,682
[52] US. Cl. 431/329 [51] Int. Cl. F23d 13/14 [58] Field of Search 431/328, 329
[56] References Cited UNITED STATES PATENTS 1.259.029 3/1918 Lucke 43l/329 3.024.836 3/1962 Bello 431/329 3.073.379
1/1963 -Martin 431/329 FOREIGN PATENTS OR APPLICATICNS l,458,l67 l0/l966 France 431/328 Primary Examiner-Carroll B. Dority, Jr. Att0rney-Holman & Stern [57] ABSTRACT Flameless gas catalytic heaters for local heating in explosive environments and installations whose operating principle is predicated on the catalytic oxidation of combustible gases as they pass through a porous catalytically active bed positioned in a heater housing whose side walls are hollow along the perimeter of the active bed and covered inside with a material having a high heat reflection coefficient.
4 Claims, 1 Drawing Figure 1 FLAMELESS GAS CATALYTIC HEATER BACKGROUND OF THE INVENTION PRIOR ART Such heaters are well-known.
In such heaters, the catalytically active layer attributing to oxidation of the flow ofa combustible gas passed therethrough to carbonic-acid gas and water and, therefore, providing for a flameless combustion" and heating of some object serves as the working body.
The catalytically active layer is confined within a cylindrical or rectangular body in such a manner that its one surface is essentially open and serves as a working surface radiating heat; in order to decrease sharply the heat losses of the surface through which the hot gas is delivered inside the catalytically active layer, this surface is thermally insulated by means of a layer made from a gas-proof material.
It is possible to cite as examples of such heaters the flameless gas catalytic heaters manufactured by the firms: Goigas, Sogena and Cis-Can Chemical industrial Sales," Ltd.; as well as those according to Austrian Pat. No. 234,954; Class 3612 2, and US. Pat. No. 3,073,379; Class 158-1 16.
A common disadvantage of conventional flameless gas catalytic heaters lies in non-uniform distribution of the temperature field along the surface of the catalytically active layer. As it is known, the central portion of the radiating surfaces is the hottest, and the portions adjoining the side walls of the body are the coldest. This is explained by great heat losses occurring through the side walls of the heater body. This disadvantage results in an incomplete (SO-90 percent) oxidation of the combustible gas and an appearance of carbonic-acid gas in combustion products.
OBJECTS AND SUMMARY OF THE INVENTION It is an object of the present invention to eliminate the aforementioned disadvantages of conventional heaters.
The present invention has as its purposethe provision of a sufficiently effective insulation of mainly side walls oi the body.
This purpose is accomplished in that in aflameles's gas catalytic heater, according to the present invention, the walls of thebody lodging catalytically active heatinsulating layers are made hollow, and their internal surfaces confining a space inside the walls are made from a material having a high coefficient of reflection of thermal rays.
In order to decrease still greater the heat losses, it is expedient to provide vacuum a in the space of the walls of the body.
For the same purpose of decreasing the heat losses, the space in the walls of the body may be filledwith some inert gas.
This design of the walls of the body makes it possible to raise the degree of the combustible gas oxidation up to 100 percent.
The following detailed description of an exemplary embodiment of the present invention is given with reference to the accompanying drawing.
BRIEF DESCRIPTION OF THE DRAWINGS The following detailed description of an exemplary embodiment of the present invention is given with reference to the accompanying drawing in which the sole FIGURE is a cross-sectional view of the flameless gas catalytic heater, built in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION The heater comprises a body 1 which may be of any shape, such as rectangular, cylindrical, etc. The side walls of the body 1 are made hollow. Internal surfaces 2 forming a space 3 inside the side walls are coated with a material having a high coefficient of reflection of thermal rays. Any conventional material of the kind, for instance aluminium, burnished stainless steel, etc., may be used as this material.
In order to decrease the heat losses, the space 3 may be filled with some gas, preferably an inert gas, in which case the danger of explosion is eliminated. The greatest effect of decreasing the heat losses is ensured by a providing vacuum in the space 3. Disposed inside the body 1 is a working member which is essentially a layer 4 made from some fibrous material, such as asbestos, silica, basaltic fiber, etc., impregnated with a catalyst of deep oxidation of carbonic-acid gases. Palladium, platinum, oxides of chromium, cobalt, copper, manganese, etc. are used as the catalyst.
The body 1 is designed in such a manner that a surface 5 of the layer 4 is open and serves a heatradiating surface.
Disposed immediately under the layer 4 is a layer 6 made from a porous heat-insulating material, such as asbestos, silica or basaltic fiber, which is not impregnated with the catalyst. Mounted on the body 1 at the side of the disposition of the porous heat-insulating layer is a gas-distributing device, which is fashioned as a pipe battery 7 located in a chamber 8 of the body I. The walls of the pipe battery 7 are punched through.
The heat-insulating layer 6 rests on a carrying shield 9 made from steel or aluminium and provided with a plurality of through holes. Mounted in the upper part of the body 1 is a metallic large-cell grid 10 used to protect the surface 5 of the layer 4 against mechanical damage. The grid 10 is pressed against the body I with the aid of a cover 11 having a port or opening 12. The cover 11 is secured to the body I with bolts 13.
The heater is provided with a thermal electric element 14 used for preheating the layer 4. The free end portions of the thermal electric element 14 are led through the bottom at the body 1 into a special explosion-proot box 15, with the elimination of the explosion possibility being ensured by a hermetic sealing of the box 15. Electric current is supplied to the thermal electric element via a cable (not shown in the drawing) which is introduced into the box 15 through a rubber sealing (not shown in the drawing).
The above-described flameless gas catalytic heater operates as follows.
In order to start the heater, electric current ofa voltage of 12 V is supplied via the cable to the thermal electric element 14. With the electric current passing along the spiral of the thermal electric element, the latter is heated and, due to the direct contact with the layer 4, heats the layer 4 to a temperature of about 400C at which the reaction of oxidation of the combustible gas starts.
Then, gas is delivered along a gas-supply line into a pipe branch 16. A natural gas, such as propane, butane, refinery gas, city gas and coke gas, may be used as such gas. While flowing out of the holes of the pipe battery 7 of the gas-distributing device, the combustible gas is uniformly distributed in the chamber 8, and, having passed through the pores of the heat-insulating layer 6, is delivered uniformly into the catalytically active layer 4. The combustible gas starts reacting with the oxygen of the air in the pores of the catalytically active layer 4 which is preheated by the thermal electric element to a temperature of the beginning of the oxidation reaction.
As a result of the catalytic reaction of the complete oxidation of the combustible gas by the oxygen of the air, there is liberated a great amount of heat, the layers 4 and 6 are heated, and the reaction continues in spite of the fact that the thermal electric element is switched-off. The ambient air is delivered into the catalytically active layer 4 by way of diffusion.
The combustion products, i.e., carbonic-acid gas and water, formed as a result ofthe reaction of the catalytic oxidation of the combustible gas, as well as free nitrogen of the air, are discharged into the atmosphere under the action of the thrust of the combustible gas delivered into the heater.
The catalytically active layer 4 and, more particularly, its surface 5, heated by the heat liberated during the reaction, becomes a source of infrared radiation. A uniform temperature falling within the range of 200+400C and depending on the amount of the combustible gas supplied to be combusted is provided uniformly along the whole radiating surface 5.
Thus, the heat load of the heater is set by varying the amount of the combustible gas supplied to be combusted. The maximum amount of the radiant energy is radiated by the radiating surface of the layer 4 within the wave length range of 3.5-5.6 microns. Within the working range of the heat loads in the combustion products there takes place practically no chemical incomplete combustion of the combustible gas.
What we claim is:
l. A flameless gas catalytic heater comprising a body defined by wall means including side walls having a sealed internal space; a material having a high coefficient of reflection of thermal rays provided on the inside of the side walls forming the internal space; a catalytically active porous layer through which combustible gases are passed and which ensures catalytic oxidation of the combustible gas; said layer being positioned within the body with at least its perimeter in contact with said side walls means; said layer having an open surface along which the products of oxidation of said combustible gas which has passed through this layer are delivered into the ambient atmosphere from the body; said catalytically active layer having a second surface along which said combustible gas is supplied inside said layer; and a heat-insulating porous layer adjoining the second surface of said catalytically active layer; said combustible gas also being passed through said heat insulating layer.
2. The heater according to claim 1, in which a vacuum is provided in said internal space disposed in said wall means of said body.
3. The heater according to claim 1, in which said internal space provided in said wall means of said body is filled with an inert gas.
4. A flameless gas catalytic heater comprising a body having a sealed hollow side wall, a bottom shield having a plurality of holes therein, and a cover having an opening therein, the inside of the hollow side wall being provided with a material having a high coefficient of reflection of thermal rays, a catalytically active porous layer within the body through which combustible gases are passed and which ensures catalytic oxidation of the combustible gas, said layer having an open surface facing the opening in the cover along which the products of oxidation of the combustible gas which is passed through the layer are delivered into the ambient atmosphere through the opening in the cup, said catalytically active layer having a second surface along which the combustible gas is supplied inside the layer, a heat insulating porous layer between said second surface and said shield through which the combustible gas passes, a chamber adjacent the shield in communication with the heat insulating porous layer via the holes in the shield, an apertured pipe battery located within the chamber in communication with a source of combustible gas for introducing the combustible gas into ing the catalytically active porous layer.

Claims (3)

  1. 2. The heater according to claim 1, in which a vacuum is provided in said internal space disposed in said wall means of said body.
  2. 3. The heater according to claim 1, in which said internal space provided in said wall means of said body is filled with an inert gas.
  3. 4. A flameless gas catalytic heater comprising a body having a sealed hollow side wall, a bottom shield having a plurality of holes therein, and a cover having an opening therein, the inside of the hollow side wall being provided with a material having a high coefficient of reflection of thermal rays, a catalytically active porous layer within the body through which combustible gases are passed and which ensures catalytic oxidation of the combustible gas, said layer having an open surface facing the opening in the cover along which the products of oxidation of the combustible gas which is passed through the layer are delivered into the ambient atmosphere through the opening in the cup, said catalytically active layer having a second surface along which the combustible gas is supplied inside the layer, a heat insulating porous layer between said second surface and said shield through which the combustible gas passes, a chamber adjacent the shield in communication with the heat insulating porous layer via the holes in the shield, an apertured pipe battery located within the chamber in communication with a source of combustible gas for introducing the combustible gas into the heat insulAting layer via the holes in the shield and a thermal electric element within the body for preheating the catalytically active porous layer.
US00221682A 1972-01-28 1972-01-28 Flameless gas catalytic heater Expired - Lifetime US3784353A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22168272A 1972-01-28 1972-01-28

Publications (1)

Publication Number Publication Date
US3784353A true US3784353A (en) 1974-01-08

Family

ID=22828873

Family Applications (1)

Application Number Title Priority Date Filing Date
US00221682A Expired - Lifetime US3784353A (en) 1972-01-28 1972-01-28 Flameless gas catalytic heater

Country Status (1)

Country Link
US (1) US3784353A (en)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912443A (en) * 1972-09-25 1975-10-14 Foseco Int Radiant gas burners
FR2314439A1 (en) * 1975-06-12 1977-01-07 Ferodo Sa Catalytic gas burner panel - has impervious layer to disperse gas evenly over surface
EP0389652A1 (en) * 1989-03-28 1990-10-03 Siemens Aktiengesellschaft Catalytic heating panel
US5235667A (en) * 1991-05-24 1993-08-10 Casso-Solar Corp. Heating method and assembly utilizing electric heating elements in conjunction with combustion
US5423669A (en) * 1993-08-19 1995-06-13 Chapman; Michael Apparatus for thermoforming shaped articles
WO1998056657A1 (en) * 1997-06-09 1998-12-17 White Richard P Infrared deicing system for aircraft
US5993192A (en) * 1997-09-16 1999-11-30 Regents Of The University Of Minnesota High heat flux catalytic radiant burner
US6045355A (en) * 1997-04-14 2000-04-04 New England Catalytic Technologies, Inc. Gas catalytic heaters with improved temperature distribution
WO2003048640A1 (en) * 2001-12-03 2003-06-12 New England Catalytic Technologies, Inc. Method of preheating catalytic heaters
US20030223920A1 (en) * 2002-06-04 2003-12-04 Critchley John N. Method for repairing catalytic heaters
US6712601B2 (en) * 2001-10-31 2004-03-30 Pgi International, Ltd. Low power starter for catalytic heaters
US20050008551A1 (en) * 2003-07-08 2005-01-13 Mckay Randy Heat exchanger device
CN102944013A (en) * 2012-11-27 2013-02-27 江苏中靖新能源科技有限公司 Non-ignition catalyst heating system using hydrogen energy
DE102015110828A1 (en) * 2015-07-06 2017-01-12 Webasto SE Porous fuel processing element
CN107300169A (en) * 2016-04-14 2017-10-27 中国科学院大连化学物理研究所 The catalytic flameless burner and combustion method of a kind of extremely low pollutant emission
IT202100010343A1 (en) * 2021-04-23 2022-10-23 Hb Srl HEATING DEVICE BY CATALYTIC COMBUSTION BY EMISSION OF INFRARED RAYS.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1259029A (en) * 1917-07-28 1918-03-12 Gas And Oil Comb Company Apparatus for burning explosive gaseous mixtures.
US3024836A (en) * 1954-10-19 1962-03-13 American Infra Red Radiant Co Radiating thermic element with catalytic gas oxidation
US3073379A (en) * 1959-05-11 1963-01-15 Maywick Appliances Ltd Gas operated heaters
FR1458167A (en) * 1965-05-07 1966-03-04 Burner or gas generator for infrared rays

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1259029A (en) * 1917-07-28 1918-03-12 Gas And Oil Comb Company Apparatus for burning explosive gaseous mixtures.
US3024836A (en) * 1954-10-19 1962-03-13 American Infra Red Radiant Co Radiating thermic element with catalytic gas oxidation
US3073379A (en) * 1959-05-11 1963-01-15 Maywick Appliances Ltd Gas operated heaters
FR1458167A (en) * 1965-05-07 1966-03-04 Burner or gas generator for infrared rays

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912443A (en) * 1972-09-25 1975-10-14 Foseco Int Radiant gas burners
FR2314439A1 (en) * 1975-06-12 1977-01-07 Ferodo Sa Catalytic gas burner panel - has impervious layer to disperse gas evenly over surface
EP0389652A1 (en) * 1989-03-28 1990-10-03 Siemens Aktiengesellschaft Catalytic heating panel
US5235667A (en) * 1991-05-24 1993-08-10 Casso-Solar Corp. Heating method and assembly utilizing electric heating elements in conjunction with combustion
US5423669A (en) * 1993-08-19 1995-06-13 Chapman; Michael Apparatus for thermoforming shaped articles
US6045355A (en) * 1997-04-14 2000-04-04 New England Catalytic Technologies, Inc. Gas catalytic heaters with improved temperature distribution
WO1998056657A1 (en) * 1997-06-09 1998-12-17 White Richard P Infrared deicing system for aircraft
US6092765A (en) * 1997-06-09 2000-07-25 White; Richard P. Infrared deicing system for aircraft
US5993192A (en) * 1997-09-16 1999-11-30 Regents Of The University Of Minnesota High heat flux catalytic radiant burner
US6712601B2 (en) * 2001-10-31 2004-03-30 Pgi International, Ltd. Low power starter for catalytic heaters
WO2003048640A1 (en) * 2001-12-03 2003-06-12 New England Catalytic Technologies, Inc. Method of preheating catalytic heaters
US20030223920A1 (en) * 2002-06-04 2003-12-04 Critchley John N. Method for repairing catalytic heaters
US20050008551A1 (en) * 2003-07-08 2005-01-13 Mckay Randy Heat exchanger device
US7138093B2 (en) * 2003-07-08 2006-11-21 Mckay Randy Heat exchanger device
CN102944013A (en) * 2012-11-27 2013-02-27 江苏中靖新能源科技有限公司 Non-ignition catalyst heating system using hydrogen energy
DE102015110828A1 (en) * 2015-07-06 2017-01-12 Webasto SE Porous fuel processing element
DE102015110828B4 (en) * 2015-07-06 2019-11-28 Webasto SE Porous fuel processing element
CN107300169A (en) * 2016-04-14 2017-10-27 中国科学院大连化学物理研究所 The catalytic flameless burner and combustion method of a kind of extremely low pollutant emission
CN107300169B (en) * 2016-04-14 2019-12-27 中国科学院大连化学物理研究所 Catalytic flameless combustion device and combustion method with extremely low pollutant emission
US10859261B2 (en) 2016-04-14 2020-12-08 Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences Catalytic flameless combustion apparatus with extremely low pollutant emission and combustion method
IT202100010343A1 (en) * 2021-04-23 2022-10-23 Hb Srl HEATING DEVICE BY CATALYTIC COMBUSTION BY EMISSION OF INFRARED RAYS.
WO2022224282A1 (en) * 2021-04-23 2022-10-27 Hb Srl Heating device by catalytic combustion emitting infrared rays

Similar Documents

Publication Publication Date Title
US3784353A (en) Flameless gas catalytic heater
US3425675A (en) Burner tube assembly for heat treating furnace
US4416618A (en) Gas-fired infra-red generators and use thereof
US3975140A (en) Space heater
ATE282355T1 (en) PORTABLE GAS GRILL
US4326843A (en) Gas-fired infra-red generators and use thereof
US3082276A (en) Thermoelectric appliance
MXPA00002835A (en) Infra-red catalytic combustion device.
US3024836A (en) Radiating thermic element with catalytic gas oxidation
ES2001233A6 (en) Radiant electric heaters incorporating microporous thermal insulating.
NZ333641A (en) Electric room heater, oil-filled radiator within grilled casing, radiator has expansion chamber
US3485230A (en) Apparatus for catalytic combustion
US2231236A (en) Heating means
FR2356897A1 (en) SOUND INSULATION DEVICE FOR A RADIATION HEATING TUBE FOR AN INDUSTRIAL OVEN
US3182982A (en) Infra-red wire annealing apparatus
GB2160967A (en) Gas-fired space heating unit
US3718323A (en) Radiant lining
US3790333A (en) Infra-red burner
JPH02176311A (en) Catalyst heating device
SU428015A1 (en) HEATING OVEN
SU742672A1 (en) Catalytic heater
ATE8704T1 (en) BOILER FOR LOW TEMPERATURE HEATING.
DE59610724D1 (en) Gas heated radiant heater
JPS6130006B2 (en)
JPS5784935A (en) Gas catalyst type cooking range