CN105370350A - Packaging method for automobile three-way catalyst converter - Google Patents
Packaging method for automobile three-way catalyst converter Download PDFInfo
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- CN105370350A CN105370350A CN201510710060.7A CN201510710060A CN105370350A CN 105370350 A CN105370350 A CN 105370350A CN 201510710060 A CN201510710060 A CN 201510710060A CN 105370350 A CN105370350 A CN 105370350A
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- China
- Prior art keywords
- catalyst converter
- carrier
- automobile
- purifying agent
- layer
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
- F01N3/2842—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration specially adapted for monolithic supports, e.g. of honeycomb type
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2370/00—Selection of materials for exhaust purification
- F01N2370/02—Selection of materials for exhaust purification used in catalytic reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention relates to the field of manufacturing of automobile three-way catalyst converters, in particular to a packaging method for an automobile three-way catalyst converter. The method includes the following steps that a purifying agent layer is formed on a honeycomb-shaped carrier; the carrier with the purifying agent layer is calcinated for 1 hour to 2 hours at the temperature ranging from 400 DEG C to 600 DEG C and then cooled in the environment with the temperature ranging from 0 DEG C to 4 DEG C; the carrier with the purifying agent layer is placed in a half of a catalyst converter shell, two halves of the structure of the catalyst converter shell are combined, a certain distance is reserved between the carrier with the purifying agent layer and the inner wall of the catalyst converter shell, and a locating board is pressed downwards, so that the inner wall and the outer wall of the catalyst converter shell are compressed, and the carrier with the purifying agent layer is attached to the inner wall of the catalyst converter shell. By the adoption of the method, the carrier with the purifying agent layer can be conveniently installed and detached, and the stressed deformation of the carrier with the purifying agent layer is reduced; and a purifying agent of specific components is adopted and smeared layer by layer, so that the catalysis effect is improved.
Description
Technical field
The present invention relates to automobile three-way catalysts preparation field, be specifically related to a kind of packaging method of automobile three-way catalysts.
Background technique
Automobile three-way catalysts is mounted in most important outer purifier in automobile exhaust system, and the harmful gases such as carbon monoxide, nitrogen oxides and the hydrocarbon that vehicle exhaust can be discharged change harmless carbon dioxide, water and nitrogen into by oxidation and reduction.Be converted to innoxious substance because three in waste gas kind can be mainly contained harmful substances by this catalyst converter simultaneously, therefore claim ternary catalyzing unit.
Automobile three-way catalysts is in preparation process, need to be packaged in catalyst converter housing, but first carrier need be coated with different activities composition and realize the shaping of purification oxidant layer, purifying agent carrier also needs carrying out firm packaging in catalyst converter housing, in prior art, often purifying agent carrier carrying out firm packaging is after catalyst converter housing, and dismounting purifying agent carrier comparatively bothers.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of packaging method of automobile three-way catalysts realizing carrying out firm packaging, for convenience detach, excellent catalytic effect.
The present invention is by the following technical solutions: a kind of packaging method of automobile three-way catalysts, is characterized in that, comprises the steps:
(1) on honeycomb support, form purification oxidant layer, namely form the carrier with purification oxidant layer;
(2) by there is the carrier of purification oxidant layer after 400-600 degree Celsius of roasting 1-2 hour, cool in 0-4 degree Celsius of environment;
(3) prepare catalyst converter housing, catalyst converter housing is two halves formula structure, and the half of catalyst converter housing is connected with suction tude, and second half is connected with outlet pipe; The inner and outer wall of catalyst housing is flexible, the outer exterior wall laminating positioning plate of catalyst housing, and inwall and outer wall are fitted; The carrier with purification oxidant layer step (2) obtained puts into the half of catalyst converter housing, and make the two halves formula folding structures of catalyst converter housing, having between the carrier of purification oxidant layer and catalyst converter inner walls and have certain distance, making catalyst converter inner walls and outer wall compressive to make to have carrier and the laminating of catalyst converter inner walls of purification oxidant layer by pressing down positioning plate.
The packaging method of aforesaid a kind of automobile three-way catalysts, in step (1), the step forming purification oxidant layer is specially: alumina powder 1-3 part, Alumina gel 0.5-1 part are heated to melting and coat carrier surface, forms purifying agent first layer after cooling curing; Again by coating on purifying agent first layer after mixture 0.1-0.3 part of cerium dioxide and zirconia, palladium nitrate 1-3 part, rhodium nitrate 0.5-1 part, ammonium persulphate 0.2-0.3 part, sodium bisulfite 0.2-0.3 part, the mixing of deionized water 1-5 part, form the purifying agent second layer.
The packaging method of aforesaid a kind of automobile three-way catalysts, in step (3), the mode of the two halves formula folding structures of catalyst converter housing is: realize two halves formula anatomical connectivity by bolt type structure, is sealed between two halves formula structure by sealing layer simultaneously.
The packaging method of aforesaid a kind of automobile three-way catalysts, in step (3), by outlet pipe surface is fixed in one end of positioning plate, the surface that the other end is fixed on suction tude realizes positioning plate and fixes.
The packaging method of aforesaid a kind of automobile three-way catalysts, in step (3), described certain distance refers to 0.1-0.5cm.
The packaging method of aforesaid a kind of automobile three-way catalysts, in step (2), cools 1-3 hour in 0-4 degree Celsius of environment.
The present invention adopts above-mentioned method, by realizing the two halves formula construction packages of catalyst converter housing, and the elastic structure of catalyst converter shell body wall, facilitate the installation and removal of purifying agent carrier, simultaneously when purifying agent carrier wind-engaging is oppressed, oppressive force is transmitted to elastic shell body wall, can reduce the pressurized deformation of purifying agent carrier; Adopt the purifying agent of specific components and layered coatings, improve catalytic effect.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described in detail.
Embodiment 1
A packaging method for automobile three-way catalysts, comprises the steps:
(1) on honeycomb support, purification oxidant layer is formed; The step forming purification oxidant layer is specially: alumina powder 2 parts, Alumina gel 0.6 part are heated to melting and coat carrier surface, forms purifying agent first layer after cooling curing; Again by coating on purifying agent first layer after 02 part, the mixture of cerium dioxide and zirconia, palladium nitrate 2 parts, rhodium nitrate 1 part, ammonium persulphate 0.2 part, sodium bisulfite 0.2 part, deionized water 3 parts mixing, form the purifying agent second layer.
(2) carrier with purification oxidant layer step (1) obtained, after 400-600 degree Celsius of roasting 1-2 hour, cools 1-3 hour in 0-4 degree Celsius of environment;
(3) prepare catalyst converter housing, catalyst converter housing is two halves formula structure, and the half of catalyst converter housing is connected with suction tude, and second half is connected with outlet pipe; The inner and outer wall of catalyst housing is flexible, the outer exterior wall laminating positioning plate of catalyst housing, and inwall and outer wall are fitted; The carrier with purification oxidant layer step (2) obtained puts into the half of catalyst converter housing, and make the two halves formula folding structures of catalyst converter housing, having between the carrier of purification oxidant layer and catalyst converter inner walls and have certain distance (such as 0.5cm), making catalyst converter inner walls and outer wall compressive to make to have carrier and the laminating of catalyst converter inner walls of purification oxidant layer by pressing down positioning plate.The mode of the two halves formula folding structures of catalyst converter housing is: realize two halves formula anatomical connectivity by bolt type structure, is sealed between two halves formula structure by sealing layer simultaneously.By outlet pipe surface is fixed in one end of positioning plate, the surface that the other end is fixed on suction tude realizes positioning plate and fixes.
The ternary catalyzing unit utilizing embodiment 1 to prepare, detecting it to the absorptivity of CO in tail gas is 92.2%, is 93.0% to the absorptivity of oxynitrides in tail gas, is 92.6% to the absorptivity of tail hydrocarbon in gas.
Embodiment 2
A packaging method for automobile three-way catalysts, comprises the steps:
(2) on honeycomb support, purification oxidant layer is formed; The step forming purification oxidant layer is specially: alumina powder 1.5 parts, Alumina gel 0.8 part are heated to melting and coat carrier surface, forms purifying agent first layer after cooling curing; Again by coating on purifying agent first layer after 0.3 part, the mixture of cerium dioxide and zirconia, palladium nitrate 3 parts, rhodium nitrate 0.5 part, ammonium persulphate 0.3 part, sodium bisulfite 0.2 part, deionized water 4 parts mixing, form the purifying agent second layer.
(2) carrier with purification oxidant layer step (1) obtained, after 400-600 degree Celsius of roasting 1-2 hour, cools 1-3 hour in 0-4 degree Celsius of environment;
(3) prepare catalyst converter housing, catalyst converter housing is two halves formula structure, and the half of catalyst converter housing is connected with suction tude, and second half is connected with outlet pipe; The inner and outer wall of catalyst housing is flexible, the outer exterior wall laminating positioning plate of catalyst housing, and inwall and outer wall are fitted; The carrier with purification oxidant layer step (2) obtained puts into the half of catalyst converter housing, and make the two halves formula folding structures of catalyst converter housing, having between the carrier of purification oxidant layer and catalyst converter inner walls and have certain distance (such as 0.4cm), making catalyst converter inner walls and outer wall compressive to make to have carrier and the laminating of catalyst converter inner walls of purification oxidant layer by pressing down positioning plate.The mode of the two halves formula folding structures of catalyst converter housing is: realize two halves formula anatomical connectivity by bolt type structure, is sealed between two halves formula structure by sealing layer simultaneously.By outlet pipe surface is fixed in one end of positioning plate, the surface that the other end is fixed on suction tude realizes positioning plate and fixes.
The ternary catalyzing unit utilizing embodiment 1 to prepare, detecting it to the absorptivity of CO in tail gas is 91.9%, is 92.5% to the absorptivity of oxynitrides in tail gas, is 93.2% to the absorptivity of tail hydrocarbon in gas.
It should be noted that; the foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other correlative technology fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a packaging method for automobile three-way catalysts, is characterized in that, comprises the steps:
(1) on honeycomb support, form purification oxidant layer, namely form the carrier with purification oxidant layer;
(2) by there is the carrier of purification oxidant layer after 400-600 degree Celsius of roasting 1-2 hour, cool in 0-4 degree Celsius of environment;
(3) prepare catalyst converter housing, catalyst converter housing is two halves formula structure, and the half of catalyst converter housing is connected with suction tude, and second half is connected with outlet pipe; The inner and outer wall of catalyst housing is flexible, the outer exterior wall laminating positioning plate of catalyst housing, and inwall and outer wall are fitted; The carrier with purification oxidant layer step (2) obtained puts into the half of catalyst converter housing, and make the two halves formula folding structures of catalyst converter housing, having between the carrier of purification oxidant layer and catalyst converter inner walls and have certain distance, making catalyst converter inner walls and outer wall compressive to make to have carrier and the laminating of catalyst converter inner walls of purification oxidant layer by pressing down positioning plate.
2. the packaging method of a kind of automobile three-way catalysts according to claim 1, it is characterized in that, in step (1), the step forming purification oxidant layer is specially: alumina powder 1-3 part, Alumina gel 0.5-1 part are heated to melting and coat carrier surface, forms purifying agent first layer after cooling curing; Again by coating on purifying agent first layer after mixture 0.1-0.3 part of cerium dioxide and zirconia, palladium nitrate 1-3 part, rhodium nitrate 0.5-1 part, ammonium persulphate 0.2-0.3 part, sodium bisulfite 0.2-0.3 part, the mixing of deionized water 1-5 part, form the purifying agent second layer.
3. the packaging method of a kind of automobile three-way catalysts according to claim 1, it is characterized in that, in step (3), the mode of the two halves formula folding structures of catalyst converter housing is: realize two halves formula anatomical connectivity by bolt type structure, is sealed between two halves formula structure by sealing layer simultaneously.
4. the packaging method of a kind of automobile three-way catalysts according to claim 1, is characterized in that, in step (3), by outlet pipe surface is fixed in one end of positioning plate, the surface that the other end is fixed on suction tude realizes positioning plate and fixes.
5. the packaging method of a kind of automobile three-way catalysts according to claim 1, is characterized in that, in step (3), described certain distance refers to 0.1-0.5cm.
6. the packaging method of a kind of automobile three-way catalysts according to claim 1, is characterized in that, in step (2), in 0-4 degree Celsius of environment, cools 1-3 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510710060.7A CN105370350A (en) | 2015-10-28 | 2015-10-28 | Packaging method for automobile three-way catalyst converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510710060.7A CN105370350A (en) | 2015-10-28 | 2015-10-28 | Packaging method for automobile three-way catalyst converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105370350A true CN105370350A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510710060.7A Pending CN105370350A (en) | 2015-10-28 | 2015-10-28 | Packaging method for automobile three-way catalyst converter |
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| Country | Link |
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| CN (1) | CN105370350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621135A (en) * | 2020-12-23 | 2021-04-09 | 河北亿利康纳利亚环保科技有限公司 | Post-treatment non-guide die carrier packaging process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207661A (en) * | 1976-04-23 | 1980-06-17 | Honda Giken Kogyo Kabushiki Kaisha | Method of fabricating a catalyst converter for cleaning exhausts of cars |
| CN1995713A (en) * | 2006-12-13 | 2007-07-11 | 北京英泰世纪环境科技有限公司 | Metal carrier triple-effect catalytic unit and method for making same |
| CN202300593U (en) * | 2011-11-08 | 2012-07-04 | 克康(上海)排气控制***有限公司 | Packaging structure with two carriers for three-way catalyst |
| CN202866944U (en) * | 2012-07-30 | 2013-04-10 | 刘光文 | Non-welding waste gas purification and catalysis machine of engine |
| CN103228880A (en) * | 2010-11-30 | 2013-07-31 | 田纳科汽车营运公司 | Exhaust treatment device insulation system |
| CN103442805A (en) * | 2011-03-31 | 2013-12-11 | 恩亿凯嘉股份有限公司 | Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method |
-
2015
- 2015-10-28 CN CN201510710060.7A patent/CN105370350A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207661A (en) * | 1976-04-23 | 1980-06-17 | Honda Giken Kogyo Kabushiki Kaisha | Method of fabricating a catalyst converter for cleaning exhausts of cars |
| CN1995713A (en) * | 2006-12-13 | 2007-07-11 | 北京英泰世纪环境科技有限公司 | Metal carrier triple-effect catalytic unit and method for making same |
| CN103228880A (en) * | 2010-11-30 | 2013-07-31 | 田纳科汽车营运公司 | Exhaust treatment device insulation system |
| CN103442805A (en) * | 2011-03-31 | 2013-12-11 | 恩亿凯嘉股份有限公司 | Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method |
| CN202300593U (en) * | 2011-11-08 | 2012-07-04 | 克康(上海)排气控制***有限公司 | Packaging structure with two carriers for three-way catalyst |
| CN202866944U (en) * | 2012-07-30 | 2013-04-10 | 刘光文 | Non-welding waste gas purification and catalysis machine of engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112621135A (en) * | 2020-12-23 | 2021-04-09 | 河北亿利康纳利亚环保科技有限公司 | Post-treatment non-guide die carrier packaging process |
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Application publication date: 20160302 |
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