GB2035826A - Catalytic cell for the treatment of cooking fumes - Google Patents
Catalytic cell for the treatment of cooking fumes Download PDFInfo
- Publication number
- GB2035826A GB2035826A GB7939683A GB7939683A GB2035826A GB 2035826 A GB2035826 A GB 2035826A GB 7939683 A GB7939683 A GB 7939683A GB 7939683 A GB7939683 A GB 7939683A GB 2035826 A GB2035826 A GB 2035826A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oven
- fumes
- cell according
- opening
- outlet passage
- 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.)
- Granted
Links
- 239000003517 fume Substances 0.000 title claims abstract description 22
- 238000010411 cooking Methods 0.000 title claims abstract description 10
- 230000003197 catalytic effect Effects 0.000 title claims description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical class [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 6
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 239000003054 catalyst Substances 0.000 claims abstract description 4
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 3
- 239000010970 precious metal Substances 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical class [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000004484 Briquette Substances 0.000 claims description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 229910052762 osmium Inorganic materials 0.000 claims description 2
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 239000010948 rhodium Substances 0.000 claims description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2007—Removing cooking fumes from oven cavities
- F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
- Incineration Of Waste (AREA)
- Baking, Grill, Roasting (AREA)
Abstract
A casing to be secured to a cooking oven comprises an upper plate 6 and a lower plate 7 and has an inlet opening 8 for fumes and air to pass through a passage 3 and escape through an outlet opening 9. The fumes and air pass through passages 4 in a ceramic block 1 held by supports 5. The passages 4 have linings of catalysts such as salts of platinum or other precious metals, and an electrical heating resistance 2 raises the temperature of the fumes and air and the block 1. <IMAGE>
Description
SPECIFICATION
Catalytic cell for the treatment of cooking fumes
The present invention relates to the field of construction of domestic cooking ovens, and has for its object a catalytic cell for the treatment of the fumes of such ovens.
The catalytic cells, intended to absorb the fumes and the odours escaping from domestic cooking ovens, from Dutch ovens, or from autonomous cooking ovens, actually existing are generally constituted by a cylindrical block of ceramic material provided with piercings coated with various oxides, and by a heating resistance incorporated in the block. Thus, under the effect of the heat released by the resistance, there is produced a catalytic oxidation destroying the fumes and the odours.
However, these existing cells involve substantial encumbrance and difficulty of dismantling.
The present invention has as one aim to mitigate these disadvantages.
It has, in effect, for its object a catalytic cell for the treatment of the fumes of domestic cooking ovens, constituted essentially by a small block of ceramic material coated with various oxides in several rows of parallel passages, by a heating resistance surrounding the small block, and by an outlet passage in which is placed the assembly of small blockresistance.
Conforming to a characteristic of the invention, the outlet passage is constituted by two plates of enamel sheet iron, welded together, of which the lower plate is provided with an opening for the communication with the interior of the oven through the intermediary of an opening provided in the upper wall of the casing of the said oven.
The invention will be better understood due to the following description, which refers to a preferred manner of construction, given by way of non-limitative example, and explained with reference to the annexed schematic drawing, of which the single Figure is a view in perspective of a cell in conformity with the invention, the upper plate of the outlet passage being partially broken away.
The catalytic cell for treatment of the fumes of domestic cooking ovens is constituted, in the showing in the annexed drawing, by a small block 1 secured between the limbs of a heating resistance 2 in the form of a U, and by an outlet passage 3 in which is inserted the assembly of the block 1-resistance 2.
The block 1 is advantageously constituted of ceramic material, and is provided with several, for preference three, rows of passages 4 parallel to each other and to the limbs of the resistance 2. This block is maintained near to the curved part of the resistance 2 by means of two supports 5 welded on the resistance 2.
The passages 4 of the block 2 are coated with catalysts, such as salts of precious metals, there being known salts of palladium, of platinum, of rhodium, of ruthenium, or of osmium.
The outlet passage 3 is constituted by an upper plate 6, and by a lower plate 7, of enamelled sheet iron, welded together. One of the two plates may equally well be constituted by the vault of the casing of the oven, the other plate then being fixed upon it. The lower plate 7 is provided with an opening 8 which opens, in the position of employment of the cell, between the curved part of the resistance 2 and the block 1, and communicates with the interior of the oven through the intermediary of an analogous opening provided in the upper wall of the casing of the said oven.
This outlet passage 3 extends above the oven as far as the opening at the rear face of the oven from the opening of the upper wall of the casing, and at its rear part presents an opening 9 for insertion of the resistance 2 with the block 1, and for release of the treated fumes.
The block 1, which has the form of a briquette, can equally well be constituted of silica, of calcium carbonate, or of any other inert support for the catalysts which are employed.
The cell in conformity with the invention functions in the following manner:
The fumes to be treated enter the passage 3 through the opening 8, and are heated by the resistance 2. They then travel in the passages 4 in the block 1, where the exides coating the said passages 4 exercise their catalytic action in destroying the fumes and the odours. The treated fumes are then evacuated through the opening 9 at the rear of the oven.
Due to the constitution of the passage 3, it is possible to withdraw the assembly of block 1-resistance 2 with a view to changing them without dismantling the surrounding of the oven.
Moreover, the small thickness of the passage 3 permits the same to be lodged between the casing and its surrounding, and permits a reduction in the height of the encased oven while also improving the efficiency of the installation. This procures a gain of space, for example, for equipping a Dutch oven with a gas cooking hob.
In conformity with a modification of embodiment of the invention, not represented in the annexed drawing, the outlet passage for the fumes may be constituted in the form of a box, containing the catalytic block and its resistance, fixed in the interior of the oven and provided with an opening through which enter the fumes to be treated, these fumes being evacuated by another opening provided in the upper wall of the casing of the oven and communicating by means of an outlet conduit with the exterior of the oven, this conduit being likewise placed under the surrounding of the oven.
Moreover, the outlet passage can equally extend transversely to the oven in order to open at one side of the same, or again in the direction of the depth in order to open at its front face.
It will be well understood that the invention is not limited to the manner of construction described and represented in the annexed drawing. Modifications remain possible, notably from the point of view of the constitution of the various elements, without departing in any way from the scope of protection of the invention.
Claims (9)
1. Catalytic cell for the treatment of the fumes of domestic cooking ovens, characterised in that it is constituted essentially by a small block in the form of a briquette, provided with several rows of parallel passages, by a heating resistance surrounding the small block, and by an-outlet passage in which is placed the assembly of small block-resistance.
2. Cell according to Claim 1, characterised in that the small block is preferably provided with three rows of parallel passages and is constituted of ceramic material, of silica, of calcium carbonate, or of any other inert support.
3. Cell according to either of Claims 1 and 2, characterised in that the passages are coated with catalysts, such as salts of precious metals, there being known salts of palladium, of platinum, of rhodium, of ruthenium, or of osmium.
4. Cell according to Claim 1, characterised in that the heating resistance presents the shape of a U, and is provided, near to its curved part, on each limb, with a support for the small block.
5. Cell according to Claim 1, characterised in that the outlet passage is constituted by two enamelled plates of sheet iron welded together, of which the lower plate is provided with an opening for communication with the interior of the oven, through the intermediary of an analogous opening provided in the upper wall of the casing of the said oven.
6. Cell according to either of Claims 1 and 5, characterised in that the outlet passage extends above the oven, from the opening in the vault of the casing as far as the rear face of the same, and at its rear part presents an opening for the insertion and withdrawal of the resistance with the small block, as well as for release of the treated fumes towards the rear of the oven.
7. Cell according to Claim 5, characterised in that the lower plate of the outlet passage is constituted by the vault of the casing of the oven.
8. Cell according to Claim 5, characterised in that the outlet passage for the fumes is constituted in the form of a box containing the catalytic block and its resistance, fixed in the interior of the oven and provided with an opening by which the fumes to be treated enter, these fumes being evacuated through another opening provided in the upper wall of the casing communicating by means of an outlet conduit with the exterior, this conduit likewise being placed under the surrounding of the oven.
9. Cell according to any one of Claims 5 to 8, characterised in that the outlet passage extends transversely to the oven in order to vent at one side of the same, or in the direction of the depth in order to vent at its front face.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7834156A FR2442655B1 (en) | 1978-11-29 | 1978-11-29 | CATALYTIC SMOKE PROCESSING CELL FOR DOMESTIC COOKING OVENS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2035826A true GB2035826A (en) | 1980-06-25 |
| GB2035826B GB2035826B (en) | 1983-08-17 |
Family
ID=9215673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7939683A Expired GB2035826B (en) | 1978-11-29 | 1979-11-16 | Catalytic cell for the treatment of cooking fumes |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE879988A (en) |
| DE (1) | DE2946745C2 (en) |
| FR (1) | FR2442655B1 (en) |
| GB (1) | GB2035826B (en) |
| IT (1) | IT1124355B (en) |
| NL (1) | NL7908337A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580535A (en) * | 1994-07-07 | 1996-12-03 | Engelhard Corporation | System and method for abatement of food cooking fumes |
| EP1400758A1 (en) * | 2002-09-23 | 2004-03-24 | CANDY S.p.A. | Heating unit for a cooking oven |
| EP1887285A3 (en) * | 2002-06-19 | 2016-11-02 | Ceramaspeed Acquisition Company Limited | Oven with electric heater |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2689618B1 (en) * | 1992-04-03 | 1999-05-21 | Europ Equip Menager | COOKING ENCLOSURE WITH PYROLYSIS CLEANING. |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3367316A (en) * | 1966-04-18 | 1968-02-06 | Gen Electric | Oven for closed door broiling |
| DE1801668A1 (en) * | 1967-10-13 | 1969-08-07 | United Carr Inc | Catalytic burner and method for forming a catalytic unit |
| DE1954744A1 (en) * | 1969-10-30 | 1971-05-06 | Taste Master Inc | Furnace with a housing and an outlet passage leading to the outside |
| FR2312734A1 (en) * | 1975-05-30 | 1976-12-24 | Cepem | FUME CATALYSIS DEVICE IN A PYROLYSIS CLEANING OVEN |
| DE2807690A1 (en) * | 1978-02-23 | 1979-08-30 | Licentia Gmbh | Domestic oven vapour eliminator - is in form of after burner with spiral heating coil under fine mesh grid inside cup shaped housing |
-
1978
- 1978-11-29 FR FR7834156A patent/FR2442655B1/en not_active Expired
-
1979
- 1979-11-13 BE BE0/198081A patent/BE879988A/en not_active IP Right Cessation
- 1979-11-14 NL NL7908337A patent/NL7908337A/en not_active Application Discontinuation
- 1979-11-16 GB GB7939683A patent/GB2035826B/en not_active Expired
- 1979-11-20 DE DE2946745A patent/DE2946745C2/en not_active Expired - Lifetime
- 1979-11-23 IT IT12839/79A patent/IT1124355B/en active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580535A (en) * | 1994-07-07 | 1996-12-03 | Engelhard Corporation | System and method for abatement of food cooking fumes |
| US5756053A (en) * | 1994-07-07 | 1998-05-26 | Engelhard Corporation | System and method for abatement of food cooking fumes |
| EP1887285A3 (en) * | 2002-06-19 | 2016-11-02 | Ceramaspeed Acquisition Company Limited | Oven with electric heater |
| EP1400758A1 (en) * | 2002-09-23 | 2004-03-24 | CANDY S.p.A. | Heating unit for a cooking oven |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2442655B1 (en) | 1985-05-31 |
| IT1124355B (en) | 1986-05-07 |
| DE2946745A1 (en) | 1980-06-12 |
| DE2946745C2 (en) | 1990-01-25 |
| FR2442655A1 (en) | 1980-06-27 |
| NL7908337A (en) | 1980-06-02 |
| IT7912839A0 (en) | 1979-11-23 |
| BE879988A (en) | 1980-03-03 |
| GB2035826B (en) | 1983-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |