CN113546690A - Active site in-situ regeneration technology for catalytic oxidation coating of household electric oven - Google Patents
Active site in-situ regeneration technology for catalytic oxidation coating of household electric oven Download PDFInfo
- Publication number
- CN113546690A CN113546690A CN202110854892.1A CN202110854892A CN113546690A CN 113546690 A CN113546690 A CN 113546690A CN 202110854892 A CN202110854892 A CN 202110854892A CN 113546690 A CN113546690 A CN 113546690A
- Authority
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- China
- Prior art keywords
- oven
- coating
- catalytic oxidation
- electric oven
- oxidation coating
- 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.)
- Pending
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 32
- 238000000576 coating method Methods 0.000 title claims abstract description 32
- 230000003197 catalytic effect Effects 0.000 title claims abstract description 24
- 230000008929 regeneration Effects 0.000 title claims abstract description 16
- 238000011069 regeneration method Methods 0.000 title claims abstract description 16
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 13
- 230000003647 oxidation Effects 0.000 title claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 13
- 238000005516 engineering process Methods 0.000 title claims abstract description 11
- 238000007664 blowing Methods 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007599 discharging Methods 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000009736 wetting Methods 0.000 claims abstract description 3
- 239000003921 oil Substances 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 4
- 239000000341 volatile oil Substances 0.000 claims description 3
- 238000011946 reduction process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000004887 air purification Methods 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/02—Heat treatment
-
- 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/88—Handling or mounting catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J38/00—Regeneration or reactivation of catalysts, in general
- B01J38/04—Gas or vapour treating; Treating by using liquids vaporisable upon contacting spent catalyst
- B01J38/12—Treating with free oxygen-containing gas
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention relates to an active site in-situ regeneration technology of a catalytic oxidation coating of a household electric oven, belonging to the field of catalytic materials and indoor air purification application thereof. The in-situ regeneration technology for the catalytic coating active sites of the household electric oven provided by the invention comprises the following steps: (1) starting the electric oven, preheating for 30min at 150 ℃, opening an oven fan for circulation, and discharging water vapor in the oven; (2) the temperature is adjusted to 200-; (3) adjusting the temperature to 300 ℃, preserving the heat for 2-4h, and blowing fresh air into the oven by using an external fan; (4) turning off heating, and blowing fresh air into the oven by using an external fan in the cooling process; (5) and after the oven is completely cooled, turning off an external fan, using clean cloth strips and wetting the cloth strips by absolute ethyl alcohol, lightly wiping the surface of the catalytic oxidation coating to realize the brightness of the coating as new and finish the in-situ regeneration of the active sites of the coating.
Description
Technical Field
The invention belongs to the field of catalytic materials and indoor air purification application thereof, and particularly relates to an active site in-situ regeneration technology and a scheme of a catalytic oxidation coating of a household electric oven.
Background
With the sustainable economic development of our country and the continuous improvement of the living standard of residents, the demand of household kitchen electrical equipment is more and more vigorous. Especially, the popularization and the use of the household electric oven meet the desire of the majority of residents to bake delicious food at home. At present, most of electric ovens used by residents in China are domestic medium and low-grade ovens, a large amount of volatile oil smoke generated in the use process of the ovens is easy to deposit and adhere to the inner wall of the ovens, and further, a lot of troubles are brought to the sanitary cleaning of the daily ovens; meanwhile, the indoor air quality is seriously influenced by the diffusion of the volatile oil smoke in the kitchen, and the personal health and safety of residents are threatened. At present, the electric oven with the automatic cleaning function is brought into the daily life of residents, volatile organic compounds can be effectively removed by utilizing the oxidation-reduction performance of a catalytic oxidation material, and the novel catalytic oxidation coating material can be widely applied to the oil stain purification of the household electric oven. However, although the coating material has a high removal rate of oil stains, a lot of oil stains which cannot be decomposed in time are inevitably deposited on the surface of the coating after long-time use, and a thick organic substance layer is formed to cover the active sites of the catalytic coating, so that the purification efficiency of the coating material is remarkably reduced, and the oven oil stain self-cleaning function is disabled. The invention provides a catalytic coating active site in-situ regeneration technology and a catalytic coating active site in-situ regeneration scheme, which can oxidize and remove organic matters on the surface of a coating through a simple temperature rise program and air purging, thereby realizing the complete recovery of the oil stain purification function of a coating material and delaying the service life of the coating material.
Disclosure of Invention
The invention provides an active site in-situ regeneration technology for a catalytic oxidation coating of a household electric oven, which specifically comprises the following steps:
(1) starting a household electric oven, preheating for 30min at 150 ℃, opening a fan cycle of the oven, discharging water vapor in the oven, and closing the fan cycle of the oven;
(2) the temperature of the electric oven is increased to 200-;
(3) the temperature of the electric oven is increased to 300 ℃ and is kept for 2-4h, and during the period, an external fan is used for blowing a large amount of fresh air into the oven through an oven air outlet;
(4) turning off the electric oven for heating, and blowing a large amount of fresh air into the oven through an oven air outlet by using an external fan in the temperature reduction process of the electric oven;
(5) and after the oven is completely cooled, turning off an external fan, using clean cloth strips and wetting the cloth strips by absolute ethyl alcohol, and lightly wiping the surface of the oil stain catalytic oxidation coating to complete the in-situ regeneration of the active sites of the coating.
The regenerated catalytic coating is used for purifying oil stain molecules of the household electric oven, the oil smoke is still effectively removed in the normal use process of the oven, and the removal efficiency is not obviously different compared with that before regeneration, so that the operability and applicability of the scheme are verified.
The main advantages of the present invention include:
(1) according to the catalytic coating active site regeneration technology provided by the invention, the high-efficiency removal of organic matters on the surface is realized by utilizing the self electric heating function and the ventilation system of the electric oven, the whole process does not need to be disassembled, and the operation steps are simple and feasible.
(2) The regeneration technology of the catalytic coating active site needs the treatment temperature below 300 ℃, is completely within the operable temperature range of the electric oven, can avoid high-temperature accidents, and has good safety for the oven and operators.
(3) The catalytic coating active site regeneration technology provided by the invention enables the catalytic coating to keep high-efficiency removal rate of oil stain molecules for a long time, remarkably prolongs the service life of the coating and reduces the maintenance cost of the electric oven.
Claims (2)
1. An active site in-situ regeneration technology for a catalytic oxidation coating of a household electric oven is characterized by comprising the following steps:
(1) starting a household electric oven, preheating for 30min at 150 ℃, opening a fan cycle of the oven, discharging water vapor in the oven, and closing the fan cycle of the oven;
(2) the temperature of the electric oven is increased to 200-;
(3) the temperature of the electric oven is increased to 300 ℃ and is kept for 2-4h, and during the period, an external fan is used for blowing a large amount of fresh air into the oven through an oven air outlet;
(4) turning off the electric oven for heating, and blowing a large amount of fresh air into the oven through an oven air outlet by using an external fan in the temperature reduction process of the electric oven;
(5) and after the oven is completely cooled, turning off an external fan, using clean cloth strips and wetting the cloth strips by absolute ethyl alcohol, and lightly wiping the surface of the oil stain catalytic oxidation coating to complete the in-situ regeneration of the active sites of the coating.
2. The catalytic oxidation coating of claim 1, wherein the catalytic oxidation coating is regenerated in situ in an electric home oven, wherein the oven has good purification efficiency of volatile oils when the oven is used normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854892.1A CN113546690A (en) | 2021-07-28 | 2021-07-28 | Active site in-situ regeneration technology for catalytic oxidation coating of household electric oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110854892.1A CN113546690A (en) | 2021-07-28 | 2021-07-28 | Active site in-situ regeneration technology for catalytic oxidation coating of household electric oven |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113546690A true CN113546690A (en) | 2021-10-26 |
Family
ID=78104706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110854892.1A Pending CN113546690A (en) | 2021-07-28 | 2021-07-28 | Active site in-situ regeneration technology for catalytic oxidation coating of household electric oven |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113546690A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307989A (en) * | 1969-05-01 | 1973-02-21 | Creda Electric Ltd | Self-cleaning ovens |
| US4089088A (en) * | 1976-07-14 | 1978-05-16 | Michigan Oven Company | Thermal regeneration and decontamination apparatus and industrial oven |
| US5431887A (en) * | 1992-05-19 | 1995-07-11 | Prototech Company | Flame arresting and contaminant-adsorbing filter apparatus and method in the catalytic abatement of broiler emissions |
| US20040079355A1 (en) * | 2002-10-25 | 2004-04-29 | Divett Timothy Andrew | Cooking appliance venting system |
| CN101071042A (en) * | 2007-03-13 | 2007-11-14 | 张能 | Method and device for deaning harmful gas for corridor type roasting oven |
| CN202027434U (en) * | 2011-02-28 | 2011-11-09 | 中山华帝燃具股份有限公司 | Self-cleaning electronic oven |
| JP2013042924A (en) * | 2011-08-24 | 2013-03-04 | Mitsubishi Electric Corp | Air cleaner |
| CN107413175A (en) * | 2017-09-18 | 2017-12-01 | 北京航空航天大学 | The method and apparatus of the low-temperature plasma synergistic catalytic purification indoor volatile organic compounds of secondary pollution is exempted from a kind of high efficiency low energy consumption |
| CN110234932A (en) * | 2016-11-30 | 2019-09-13 | 伊利诺斯工具制品有限公司 | For carrying out the system of cleaning circulation oven air with reduced heat damage |
| CN110373107A (en) * | 2019-07-31 | 2019-10-25 | 广东美的厨房电器制造有限公司 | Self-cleaning coating composition, coating and its coating and kitchen electric equipment |
| CN110560178A (en) * | 2019-09-19 | 2019-12-13 | 广东俐峰环保科技有限公司 | Online activation method of catalyst for catalytic oxidation of VOCs |
| CN210124640U (en) * | 2019-04-25 | 2020-03-06 | 杭州老板电器股份有限公司 | Baking oven |
| CN111110049A (en) * | 2020-03-05 | 2020-05-08 | 青岛麦卡智厨科技有限公司 | Multi-stage temperature control heat exchange device for water dispenser |
| CN111939723A (en) * | 2020-09-15 | 2020-11-17 | 北京市环境保护科学研究院 | Volatile organic compound adsorption purification and catalytic regeneration integrated device |
| CN113559878A (en) * | 2021-07-28 | 2021-10-29 | 几唯(苏州)新材料科技有限公司 | Development and application of household electric oven oil stain catalysis self-cleaning material |
-
2021
- 2021-07-28 CN CN202110854892.1A patent/CN113546690A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307989A (en) * | 1969-05-01 | 1973-02-21 | Creda Electric Ltd | Self-cleaning ovens |
| US4089088A (en) * | 1976-07-14 | 1978-05-16 | Michigan Oven Company | Thermal regeneration and decontamination apparatus and industrial oven |
| US5431887A (en) * | 1992-05-19 | 1995-07-11 | Prototech Company | Flame arresting and contaminant-adsorbing filter apparatus and method in the catalytic abatement of broiler emissions |
| US20040079355A1 (en) * | 2002-10-25 | 2004-04-29 | Divett Timothy Andrew | Cooking appliance venting system |
| CN101071042A (en) * | 2007-03-13 | 2007-11-14 | 张能 | Method and device for deaning harmful gas for corridor type roasting oven |
| CN202027434U (en) * | 2011-02-28 | 2011-11-09 | 中山华帝燃具股份有限公司 | Self-cleaning electronic oven |
| JP2013042924A (en) * | 2011-08-24 | 2013-03-04 | Mitsubishi Electric Corp | Air cleaner |
| CN110234932A (en) * | 2016-11-30 | 2019-09-13 | 伊利诺斯工具制品有限公司 | For carrying out the system of cleaning circulation oven air with reduced heat damage |
| CN107413175A (en) * | 2017-09-18 | 2017-12-01 | 北京航空航天大学 | The method and apparatus of the low-temperature plasma synergistic catalytic purification indoor volatile organic compounds of secondary pollution is exempted from a kind of high efficiency low energy consumption |
| CN210124640U (en) * | 2019-04-25 | 2020-03-06 | 杭州老板电器股份有限公司 | Baking oven |
| CN110373107A (en) * | 2019-07-31 | 2019-10-25 | 广东美的厨房电器制造有限公司 | Self-cleaning coating composition, coating and its coating and kitchen electric equipment |
| CN110560178A (en) * | 2019-09-19 | 2019-12-13 | 广东俐峰环保科技有限公司 | Online activation method of catalyst for catalytic oxidation of VOCs |
| CN111110049A (en) * | 2020-03-05 | 2020-05-08 | 青岛麦卡智厨科技有限公司 | Multi-stage temperature control heat exchange device for water dispenser |
| CN111939723A (en) * | 2020-09-15 | 2020-11-17 | 北京市环境保护科学研究院 | Volatile organic compound adsorption purification and catalytic regeneration integrated device |
| CN113559878A (en) * | 2021-07-28 | 2021-10-29 | 几唯(苏州)新材料科技有限公司 | Development and application of household electric oven oil stain catalysis self-cleaning material |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211026 |
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| WD01 | Invention patent application deemed withdrawn after publication |