CN104258842A - Formula of ternary catalyst of automobile - Google Patents
Formula of ternary catalyst of automobile Download PDFInfo
- Publication number
- CN104258842A CN104258842A CN201410513865.8A CN201410513865A CN104258842A CN 104258842 A CN104258842 A CN 104258842A CN 201410513865 A CN201410513865 A CN 201410513865A CN 104258842 A CN104258842 A CN 104258842A
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- automobile
- zro
- honeycomb
- carrier
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Abstract
The invention discloses a formula of a ternary catalyst of an automobile. The formula of the ternary catalyst of the automobile comprises a honeycomb-like carrier, wherein the surface of the honeycomb-like carrier is subjected to oxidization treatment; the oxidized honeycomb-like carrier is attached with a ZrO2 coating; the honeycomb-like carrier which is attached with the ZrO2 coating is attached with La2O3, ZrO2, CeO2, and La2O3; the La2O3, ZrO2, CeO2, and La2O3 are adhered to one another through an adhesive. Compared with the prior art, tail gas of the automobile can be effectively treated to reach a standard by adhering a small quantity of elements on the honeycomb-like carrier after being oxidized; moreover, the ternary catalyst is not easy to age, the environment is effectively protected, and the air pollution is reduced, so that the ternary catalyst has popularization and use values.
Description
Technical field
The present invention relates to a kind of automobile exhaust gas purifying installation catalyst, particularly relate to a kind of automobile three-way catalyst formula.
Background technology
Ternary catalyzing unit, is mounted in most important outer purifier in automobile exhaust system, and the pernicious gases such as CO, HC and NOx that vehicle exhaust can be discharged by it change harmless carbon dioxide, water and nitrogen into by oxidation and reduction.When the vehicle exhaust of high temperature is by purifier, cleanser in ternary catalyzing unit will strengthen the activity of CO, HC and NOx tri-kinds of gases, impel it to carry out certain oxidationreduction chemical reaction, wherein CO is at high temperature oxidized into colourless, nontoxic carbon dioxide; HC compound is at high temperature oxidized to water (H20) and carbon dioxide; NOx is reduced into nitrogen and oxygen.Three kinds of pernicious gases become innocuous gas, and vehicle exhaust is purified.And in prior art, the formula of the three-way catalyst of vehicle exhaust is not enough to vent gas treatment up to standard, and consumption is comparatively large, therefore, needs a kind of birth of new three-way catalyst.
Summary of the invention
Object of the present invention is just to provide a kind of automobile three-way catalyst formula to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes honeycomb support, oxidation processes is carried out on the surface of described honeycomb support, and the described honeycomb support after oxidation adheres to ZrO
2coating, attachment ZrO
2described honeycomb support after coating adheres to La2O
3, ZrO
2, CeO
2and La
2o
3, described La
2o
3, described ZrO
2, described CeO
2with described La
2o
3between adhered to by bonding agent.
Further, described La2O
3concentration be 5wt% ~ 30wt%, described ZrO
2concentration be 15wt% ~ 75wt%, described CeO
2concentration be 20wt% ~ 90wt%, described La
2o
3concentration be 45wt% ~ 90wt%.
Particularly, described bonding agent is aluminium oxide, described La2O
3concentration be 30wt%, described ZrO
2concentration be 75wt%, described CeO
2concentration be 90wt%, described La
2o
3concentration be 90wt%.
Beneficial effect of the present invention is:
The present invention is a kind of automobile three-way catalyst formula; compared with prior art; the present invention adopts several elements a small amount of for attachment after honeycomb support oxidation; can be effective by up to standard for the vent gas treatment of automobile; and be not easy aging; effective protection of the environment, reduces air pollution, has the value promoted the use of.
Detailed description of the invention
The invention will be further described below:
The present invention includes honeycomb support, oxidation processes is carried out on the surface of described honeycomb support, and the described honeycomb support after oxidation adheres to ZrO
2coating, attachment ZrO
2described honeycomb support after coating adheres to the La2O that concentration is 30wt%
3, concentration is the ZrO of 75wt%
2, concentration is the CeO of 90wt%
2be the La of 90wt% with concentration
2o
3, described La
2o
3, described ZrO
2, described CeO
2with described La
2o
3between adhered to by bonding agent.
Further, described La2O
3concentration be 5wt% ~ 30wt%, described ZrO
2concentration be 15wt% ~ 75wt%, described CeO
2concentration be 20wt% ~ 90wt%, described La
2o
3concentration be 45wt% ~ 90wt%.
Embodiment: adopt specification to be Ф 118.4mm × 152.4mm, hole density is 600cpsi, duct wall thickness is 4.3mil, volume be 1.678L honeycomb support on adhere to mentioned component after try out, the tail gas of discharging is detected, result shows: the material such as carbon monoxide (CO), hydrocarbon (HC), nitrogen oxide (NOX), plumbous (Pb) is all up to standard and lower than standard, have good effect.
More than show and describe general principle of the present utility model and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. an automobile three-way catalyst formula, comprises honeycomb support, it is characterized in that: oxidation processes is carried out on the surface of described honeycomb support, and the described honeycomb support after oxidation adheres to ZrO
2coating, attachment ZrO
2described honeycomb support after coating adheres to La2O
3, ZrO
2, CeO
2and La
2o
3, described La
2o
3, described ZrO
2, described CeO
2with described La
2o
3between adhered to by bonding agent.
2. automobile three-way catalyst formula according to claim 1, is characterized in that: described La2O
3concentration be 5wt% ~ 30wt%, described ZrO
2concentration be 15wt% ~ 75wt%, described CeO
2concentration be 20wt% ~ 90wt%, described La
2o
3concentration be 45wt% ~ 90wt%.
3. automobile three-way catalyst formula according to claim 1, is characterized in that: described bonding agent is aluminium oxide.
4. automobile three-way catalyst formula according to claim 2, is characterized in that: described La2O
3concentration be 30wt%, described ZrO
2concentration be 75wt%, described CeO
2concentration be 90wt%, described La
2o
3concentration be 90wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513865.8A CN104258842A (en) | 2014-09-29 | 2014-09-29 | Formula of ternary catalyst of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410513865.8A CN104258842A (en) | 2014-09-29 | 2014-09-29 | Formula of ternary catalyst of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104258842A true CN104258842A (en) | 2015-01-07 |
Family
ID=52150490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410513865.8A Pending CN104258842A (en) | 2014-09-29 | 2014-09-29 | Formula of ternary catalyst of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104258842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597112A (en) * | 2017-08-16 | 2018-01-19 | 柳州申通汽车科技有限公司 | A kind of automobile using three-way catalyst |
-
2014
- 2014-09-29 CN CN201410513865.8A patent/CN104258842A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597112A (en) * | 2017-08-16 | 2018-01-19 | 柳州申通汽车科技有限公司 | A kind of automobile using three-way catalyst |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
|
| WD01 | Invention patent application deemed withdrawn after publication |