CN107469871A - The method of roasting of ternary catalyst for automobile tail gas - Google Patents
The method of roasting of ternary catalyst for automobile tail gas Download PDFInfo
- Publication number
- CN107469871A CN107469871A CN201710689708.6A CN201710689708A CN107469871A CN 107469871 A CN107469871 A CN 107469871A CN 201710689708 A CN201710689708 A CN 201710689708A CN 107469871 A CN107469871 A CN 107469871A
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- Prior art keywords
- carrier
- roasting
- combustion flue
- tail gas
- automobile tail
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- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
-
- 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
- B01D53/864—Removing carbon monoxide or hydrocarbons
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Catalysts (AREA)
Abstract
The present invention relates to the method for roasting in purifying vehicle exhaust field, specifically ternary catalyst for automobile tail gas, including cated carrier will be loaded it is delivered to annular horizontal combustion flue and dried；Then heating roasting is carried out to carrier perisporium in horizontal combustion flue；Carrier is delivered to inclination combustion flue again；Heating roasting is carried out to carrier both ends tilting in combustion flue；Carrier after output roasting.The present invention is calcined in horizontal combustion flue to the perisporium of carrier first, is then calcined carrier both ends, thus can ensure that the roasting of the coating on whole carrier is more uniformly distributed, so as to improve the performance of catalyst.
Description
Technical field
The present invention relates to the method for roasting in purifying vehicle exhaust field, specifically ternary catalyst for automobile tail gas.
Background technology
Existing catalyst is by cellular ceramics or metallic carrier and is attached to supported catalyst coating and forms.Urge
Agent coating is generally by the oxide material with large specific surface area（Such as aluminum oxide）, hydrogen-storing material and be dispersed in oxide or
The noble metal active component on hydrogen-storing material surface（Often it is Pt（Platinum）、Pd（Palladium）、Rh（Rhodium）In one or more）Composition.Its
In hydrogen-storing material be generally the composite oxides containing cerium zirconium, it is by the oxygen in adsorption storage tail gas or discharges oxygen to adjust
The ratio of oxidizing component and reproducibility component in tail gas, while making carbon monoxide and oxidized hydrocarbon oxygen, nitrogen oxygen
Compound is reduced.For current three-way catalyst generally all using double coating structures, coating is due to not enough uniformly, to lead in roasting
Cause the clean-up effect of catalyst unsatisfactory.
The content of the invention
For above-mentioned technical problem, the present invention, which provides one kind, can make coating be calcined more uniform vehicle exhaust three-element catalytic
The method of roasting of agent.
Technical scheme is used by the present invention solves above-mentioned technical problem：The roasting side of ternary catalyst for automobile tail gas
Method, comprise the following steps：
（1）Cated carrier will be loaded it is delivered to annular horizontal combustion flue and is dried；
（2）Then heating roasting is carried out to carrier perisporium in horizontal combustion flue；
（3）Carrier is delivered to inclination combustion flue again；
（4）Heating roasting is carried out to carrier both ends tilting in combustion flue；
（5）Carrier after output roasting.
It is placed on feed track by end to end mode preferably, cated several carriers will be loaded, then passes through
The carrier of feed track one end is pushed, the carrier of the feed track other end is entered the horizontal combustion flue.
Preferably, the horizontal combustion flue perisporium is evenly equipped with heater.
Preferably, horizontal combustion flue includes baking zone and roast area, carrier is first dried in baking zone, is then sent to roasting
Area carries out heating roasting.
Preferably, the inclination combustion flue lower end is provided with calciner.
Preferably, the inclination combustion flue can radial rotary.
As can be known from the above technical solutions, the present invention is calcined in horizontal combustion flue to the perisporium of carrier first, then will
Carrier both ends are calcined, and thus can ensure that the roasting of the coating on whole carrier is more uniformly distributed, so as to improve the performance of catalyst.
Embodiment
The present invention is described in detail below, illustrative examples of the invention and explanation are used for explaining the present invention herein, but
It is not as a limitation of the invention.
The method of roasting of ternary catalyst for automobile tail gas, comprises the following steps：
First, cated carrier will be loaded it is delivered to annular horizontal combustion flue and is dried；Before this, coating will should be loaded with
Several carriers be placed in by end to end mode on feed track, then by pushing the carrier of feed track one end, make feed track
The carrier of the other end enters the horizontal combustion flue, so as to ensure the security of conveying and convenience, is advantageously implemented automation
Production.The horizontal combustion flue of the present invention includes baking zone and roast area, and carrier is first dried in baking zone, is then sent to roast area and enters
Row heating roasting.Because the temperature difference of baking zone and roast area is larger, on the one hand both, which separate out, is advantageous to improve roasting effect
Rate, on the other hand improve the uniformity of roasting.
Then, heating roasting is carried out to carrier perisporium in horizontal combustion flue；Because horizontal combustion flue uses annular layout, and
Horizontal combustion flue perisporium is evenly equipped with heater, so as to ensure the uniformity of perisporium heating, and then causes the roasting of carrier perisporium more
To be uniform.In implementation process, because adjacent two carrier joins end to end, its end contacted there may be showing for roasting inequality
As.Therefore, carrier is delivered to inclination combustion flue by the present invention again, so as to carry out heating roasting to carrier both ends in inclination combustion flue,
To improve the uniformity of whole carrier calcination.
In implementation process, the inclination combustion flue lower end is provided with calciner, and the carrier through the roasting of horizontal combustion flue is by pushing away
Squeeze and can be glided automatically along combustion flue is tilted, during downslide, tilted under the calciner of combustion flue lower end can stop that carrier continues
It is sliding, and pair carrier end contacted with the calciner carries out heating roasting；And tilt combustion flue can radial rotary, that is, be calcined load
The carrier other end is contacted with calciner by rotation behind body one end, so as to carry out heating roasting to the other end, finally lead to
The carrier crossed after the output roasting of rotation uphill furnace road.
Above-mentioned embodiment is used for illustrative purposes only, and is not limitation of the present invention, relevant technical field
Those of ordinary skill, can be so that various changes can be made and modification without departing from the spirit and scope of the present invention, therefore institute
There is equivalent technical scheme also to belong to scope of the invention.
Claims (6)
1. the method for roasting of ternary catalyst for automobile tail gas, comprises the following steps：
（1）Cated carrier will be loaded it is delivered to annular horizontal combustion flue and is dried；
（2）Then heating roasting is carried out to carrier perisporium in horizontal combustion flue；
（3）Carrier is delivered to inclination combustion flue again；
（4）Heating roasting is carried out to carrier both ends tilting in combustion flue；
（5）Carrier after output roasting.
2. the method for roasting of ternary catalyst for automobile tail gas according to claim 1, it is characterised in that：It will load cated
Several carriers are placed on feed track by end to end mode, then by pushing the carrier of feed track one end, make feed track another
The carrier of one end enters the horizontal combustion flue.
3. the method for roasting of ternary catalyst for automobile tail gas according to claim 1, it is characterised in that：The horizontal combustion flue week
Wall is evenly equipped with heater.
4. the method for roasting of ternary catalyst for automobile tail gas according to claim 1, it is characterised in that：Horizontal combustion flue includes drying
Dry area and roast area, carrier are first dried in baking zone, are then sent to roast area and carry out heating roasting.
5. the method for roasting of ternary catalyst for automobile tail gas according to claim 1, it is characterised in that：Under the inclination combustion flue
End is provided with calciner.
6. the method for roasting of ternary catalyst for automobile tail gas according to claim 5, it is characterised in that：The inclination combustion flue can
Radial rotary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710689708.6A CN107469871B (en) | 2017-08-16 | 2017-08-16 | Roasting method of automobile exhaust three-way catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710689708.6A CN107469871B (en) | 2017-08-16 | 2017-08-16 | Roasting method of automobile exhaust three-way catalyst |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107469871A true CN107469871A (en) | 2017-12-15 |
| CN107469871B CN107469871B (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710689708.6A Active CN107469871B (en) | 2017-08-16 | 2017-08-16 | Roasting method of automobile exhaust three-way catalyst |
Country Status (1)
| Country | Link |
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| CN (1) | CN107469871B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417157A (en) * | 2001-11-09 | 2003-05-14 | 株式会社电装 | Making process and drier for honeycomb ceramic body |
| CN201697447U (en) * | 2010-05-04 | 2011-01-05 | 重庆普源化工工业有限公司 | Calcining device of nano-grade WO3/TiO2 functional materials |
| CN202734497U (en) * | 2012-07-16 | 2013-02-13 | 株式会社村田制作所 | Rotary heat treatment furnace |
| CN203550522U (en) * | 2013-10-28 | 2014-04-16 | 中国石油化工股份有限公司 | Rotary roaster for preparing load type catalyst carrier |
| CN103754889A (en) * | 2014-02-25 | 2014-04-30 | 连云港市东海县宏伟石英制品有限公司 | High-purity quartz sand purification method and special rotating device |
| CN204177232U (en) * | 2014-09-04 | 2015-02-25 | 南京钛白化工有限责任公司 | A kind of temperature measuring equipment for titanium dioxide calcining kiln |
| CN204630357U (en) * | 2015-03-18 | 2015-09-09 | 江苏贝丽得新材料有限公司 | A kind of pearlescent pigment calcining revolving burner |
| CN105688905A (en) * | 2016-04-27 | 2016-06-22 | 柳州申通汽车科技有限公司 | Preparation technology of automobile exhaust catalyst |
| CN105797744A (en) * | 2016-04-27 | 2016-07-27 | 柳州申通汽车科技有限公司 | Preparation process of automobile tail gas ternary catalyst |
| CN105890347A (en) * | 2016-04-29 | 2016-08-24 | 青岛智邦炉窑设计研究有限公司 | Rotary kiln type reduction roasting device and process |
-
2017
- 2017-08-16 CN CN201710689708.6A patent/CN107469871B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1417157A (en) * | 2001-11-09 | 2003-05-14 | 株式会社电装 | Making process and drier for honeycomb ceramic body |
| CN201697447U (en) * | 2010-05-04 | 2011-01-05 | 重庆普源化工工业有限公司 | Calcining device of nano-grade WO3/TiO2 functional materials |
| CN202734497U (en) * | 2012-07-16 | 2013-02-13 | 株式会社村田制作所 | Rotary heat treatment furnace |
| CN203550522U (en) * | 2013-10-28 | 2014-04-16 | 中国石油化工股份有限公司 | Rotary roaster for preparing load type catalyst carrier |
| CN103754889A (en) * | 2014-02-25 | 2014-04-30 | 连云港市东海县宏伟石英制品有限公司 | High-purity quartz sand purification method and special rotating device |
| CN204177232U (en) * | 2014-09-04 | 2015-02-25 | 南京钛白化工有限责任公司 | A kind of temperature measuring equipment for titanium dioxide calcining kiln |
| CN204630357U (en) * | 2015-03-18 | 2015-09-09 | 江苏贝丽得新材料有限公司 | A kind of pearlescent pigment calcining revolving burner |
| CN105688905A (en) * | 2016-04-27 | 2016-06-22 | 柳州申通汽车科技有限公司 | Preparation technology of automobile exhaust catalyst |
| CN105797744A (en) * | 2016-04-27 | 2016-07-27 | 柳州申通汽车科技有限公司 | Preparation process of automobile tail gas ternary catalyst |
| CN105890347A (en) * | 2016-04-29 | 2016-08-24 | 青岛智邦炉窑设计研究有限公司 | Rotary kiln type reduction roasting device and process |
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| Publication number | Publication date |
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| CN107469871B (en) | 2020-07-14 |
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Effective date of registration: 20221229 Address after: 545616 room 2-2, 2nd floor, No.60 zhengtongdao, Luorong Town, Liuzhou City, Guangxi Zhuang Autonomous Region Patentee after: Liuzhou Xinkai Chaohua Technology Co.,Ltd. Address before: 545000 Liudong New District, Liuzhou City, Guangxi Zhuang Autonomous Region, No. 2 Shuiwan Road, No. 2 Liudong Standard Factory Building, Second Floor 212 Patentee before: LIUZHOU SHENTONG AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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