CN115532271A - Preparation method of integral type catalyst for catalytic combustion of VOCs - Google Patents
Preparation method of integral type catalyst for catalytic combustion of VOCs Download PDFInfo
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- CN115532271A CN115532271A CN202211002127.8A CN202211002127A CN115532271A CN 115532271 A CN115532271 A CN 115532271A CN 202211002127 A CN202211002127 A CN 202211002127A CN 115532271 A CN115532271 A CN 115532271A
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- catalyst
- vocs
- catalyst carrier
- salt solution
- catalytic combustion
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- 239000003054 catalyst Substances 0.000 title claims abstract description 66
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 23
- 238000007084 catalytic combustion reaction Methods 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000012266 salt solution Substances 0.000 claims abstract description 20
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 18
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 17
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 17
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 12
- 229910001868 water Inorganic materials 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 230000032683 aging Effects 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000011148 porous material Substances 0.000 claims abstract description 8
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims abstract description 7
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000008367 deionised water Substances 0.000 claims abstract description 6
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 6
- 238000002791 soaking Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims abstract description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 16
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims 7
- 238000010304 firing Methods 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract description 5
- 238000003860 storage Methods 0.000 abstract description 5
- 229910000510 noble metal Inorganic materials 0.000 description 5
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 description 3
- SXTLQDJHRPXDSB-UHFFFAOYSA-N copper;dinitrate;trihydrate Chemical compound O.O.O.[Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O SXTLQDJHRPXDSB-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/83—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 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
- 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
-
- B01J35/56—
-
- 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
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
-
- 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
- B01J37/088—Decomposition of a metal salt
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
Abstract
The embodiment of the invention provides a preparation method of an integral type catalyst for catalytic combustion of VOCs, belonging to the technical field of catalysts, and the preparation method comprises the following steps: fully and uniformly mixing kaolin, aluminum oxide, cerium oxide and zirconium oxide according to a certain proportion to obtain a mixture, adding water, and uniformly stirring to obtain pug; the pug is subjected to mulling and ageing, then a honeycomb blank is obtained through extrusion molding by using a customized die, and the honeycomb blank is dried and then roasted to obtain a catalyst carrier; dissolving copper nitrate and cobalt nitrate in deionized water according to a certain proportion to prepare a stable salt solution, and soaking the catalyst carrier in the salt solution for a certain time under a stirring state; and taking out the soaked catalyst carrier, blowing off residual liquid in the pore channel, drying and roasting to obtain the integral catalyst for catalytic combustion of VOCs. The invention can effectively improve the oxygen storage and anti-sintering capability of the catalyst, thereby improving the catalytic efficiency.
Description
Technical Field
The invention relates to the technical field of catalyst preparation, in particular to a preparation method of an integral type catalyst for catalytic combustion of VOCs.
Background
The catalyst is used as the core of catalytic reaction and plays a vital role in the technology of catalytic combustion decomposition of VOCs. Currently, VOCs catalysts are divided into precious metal catalysts and non-precious metal catalysts. Noble metal catalysts tend to be expensive to produce and use; the non-noble metal catalyst mostly adopts transition metal oxides as active components, and has the advantages of low cost, long service life and the like. However, the non-noble metal catalyst prepared at present has the defects of poor oxygen storage and anti-sintering capacity, small specific surface area, low catalytic efficiency and the like.
Disclosure of Invention
The embodiment of the invention aims to provide a preparation method of an integral type catalyst for catalytic combustion of VOCs, which aims to greatly reduce the production cost and the use cost and effectively improve the oxygen storage and sintering resistance of the catalyst so as to improve the catalytic efficiency.
The preparation method of the integral type catalyst for catalytic combustion of VOCs provided by the embodiment of the invention comprises the following steps:
s10: fully and uniformly mixing kaolin, aluminum oxide, cerium oxide and zirconium oxide according to a certain proportion to obtain a mixture, adding water, and uniformly stirring to obtain pug;
s20: the pug is subjected to mulling and ageing, then a honeycomb blank is obtained through extrusion molding by using a customized die, and the honeycomb blank is dried and then roasted to obtain a catalyst carrier;
s30: dissolving copper nitrate and cobalt nitrate in deionized water according to a certain proportion to prepare a stable salt solution, and soaking the catalyst carrier in the salt solution for a certain time under a stirring state;
s40: and taking out the soaked catalyst carrier, blowing off residual liquid in the pore channel, drying and roasting to obtain the integral catalyst for catalytic combustion of VOCs.
Further, the kaolin, the alumina, the cerium oxide and the zirconium oxide have the mesh number of more than 1000 meshes.
Furthermore, the purities of the cerium oxide and the zirconium oxide are both more than 99%.
Further, the kaolin, the alumina, the cerium oxide, the zirconium oxide and the water are in a mass ratio of: 25% of kaolin, 15% of alumina, 12% of cerium oxide, 8% of zirconia and 40% of water.
Further, in the step S20, the baking temperature of the honeycomb green body is 1000 ℃, and the baking time is 6 hours.
Further, the molar ratio of the copper nitrate to the cobalt nitrate is 3:7, the mass concentration of the salt solution is 40%.
Further, the time for soaking the catalyst carrier into the salt solution is 24 hours.
Further, in the step S40, the calcination temperature of the catalyst carrier is 500 ℃, and the calcination time is 4 hours.
The invention has the beneficial effects that:
the preparation method of the integral type catalyst for catalytic combustion of VOCs provided by the embodiment of the invention comprises the steps of firstly, uniformly mixing kaolin, aluminum oxide, cerium oxide and zirconium oxide, then adding water and stirring to obtain mud, then, carrying out mulling, ageing and extrusion molding on the mud to obtain a honeycomb blank, and then, drying and roasting the honeycomb blank to obtain the catalyst carrier. Secondly, preparing a salt solution from copper nitrate and cobalt nitrate, soaking the catalyst carrier in the salt solution for a certain time, taking out the catalyst carrier, blowing off residual liquid in a pore channel, drying and roasting to obtain the integral type catalyst for catalyzing and burning VOCs.
Because the cerium oxide and the zirconium oxide are introduced into the catalyst carrier, on one hand, the oxygen storage and sintering resistance of the catalyst are improved, and simultaneously, the specific surface area of the catalyst carrier is also improved, so that the catalytic efficiency is improved. In addition, non-noble metals such as cobalt and copper are used as active components, so that the production and use costs are greatly reduced.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.
Example 1
The embodiment of the invention provides a preparation method of an integral type catalyst for catalytic combustion of VOCs, which comprises the following steps:
step S10: after 25 parts of kaolin, 15 parts of alumina, 12 parts of cerium oxide and 8 parts of zirconium oxide are fully and uniformly mixed to obtain a mixture, 40 parts of water is added and uniformly stirred to obtain pug.
Preferably, the kaolin, the alumina, the ceria and the zirconia have mesh numbers greater than 1000 mesh. The purities of the cerium oxide and the zirconium oxide are both more than 99 percent.
Step S20: and (3) mixing and ageing the obtained pug, extruding and molding by using a customized die to obtain a honeycomb blank, drying the honeycomb blank, and roasting at 1000 ℃ for 6 hours to obtain the catalyst carrier.
Step S30: dissolving 7.2 parts of copper nitrate trihydrate and 16.8 parts of cobalt nitrate hexahydrate in deionized water to prepare a stable salt solution with the solid content of 40%; the catalyst support was soaked in a salt solution for 24h with stirring.
Step S40: and taking out the impregnated catalyst carrier, blowing off residual liquid in the pore channel, drying, and roasting at 500 ℃ for 4 hours to obtain the integral catalyst for catalytic combustion of VOCs.
Example 2
The embodiment of the invention provides a preparation method of an integral type catalyst for catalytic combustion of VOCs, which comprises the following steps:
step S10: after 25 parts of kaolin, 15 parts of alumina, 12 parts of cerium oxide and 8 parts of zirconium oxide are fully and uniformly mixed to obtain a mixture, 40 parts of water is added and uniformly stirred to obtain pug.
Preferably, the kaolin, the alumina, the ceria and the zirconia have a mesh number greater than 1000 mesh. The purities of the cerium oxide and the zirconium oxide are both more than 99 percent.
Step S20: and (3) mixing and ageing the obtained pug, extruding and molding by using a customized die to obtain a honeycomb blank, drying the honeycomb blank, and roasting at 1000 ℃ for 6 hours to obtain the catalyst carrier.
Step S30: dissolving 6 parts of copper nitrate trihydrate and 14 parts of cobalt nitrate hexahydrate in deionized water to prepare a stable salt solution with the solid content of 40%; the catalyst support was soaked in a salt solution for 24h with stirring.
Step S40: and taking out the impregnated catalyst carrier, blowing off residual liquid in the pore channel, drying, and roasting at 500 ℃ for 4 hours to obtain the integral catalyst for catalytic combustion of VOCs.
Example 3
The embodiment of the invention provides a preparation method of an integral type catalyst for catalytic combustion of VOCs, which comprises the following steps:
step S10: after 25 parts of kaolin, 15 parts of alumina, 12 parts of cerium oxide and 8 parts of zirconium oxide are fully and uniformly mixed to obtain a mixture, 40 parts of water is added and uniformly stirred to obtain pug.
Preferably, the kaolin, the alumina, the ceria and the zirconia have a mesh number greater than 1000 mesh. The purities of the cerium oxide and the zirconium oxide are both more than 99%.
Step S20: and (3) mixing and ageing the obtained pug, extruding and molding by using a customized die to obtain a honeycomb blank, drying the honeycomb blank, and roasting at 1000 ℃ for 6 hours to obtain the catalyst carrier.
Step S30: dissolving 9 parts of copper nitrate trihydrate and 12 parts of cobalt nitrate hexahydrate in deionized water to prepare a stable salt solution with the solid content of 40%; the catalyst support was soaked in a salt solution for 24h with stirring.
Step S40: and taking out the impregnated catalyst carrier, blowing off residual liquid in the pore channel, drying, and roasting at 500 ℃ for 4 hours to obtain the integral catalyst for catalytic combustion of VOCs.
In summary, according to the preparation method of the monolithic catalyst for catalytic combustion of VOCs provided by the embodiment of the present invention, firstly, kaolin, aluminum oxide, cerium oxide and zirconium oxide are uniformly mixed, then water is added to the mixture and stirred to obtain a mud material, the mud material is subjected to mulling, aging and extrusion molding to obtain a honeycomb blank, and then the honeycomb blank is dried and calcined to obtain the catalyst carrier. Secondly, preparing a salt solution from copper nitrate and cobalt nitrate, soaking the catalyst carrier in the salt solution for a certain time, taking out the catalyst carrier, blowing off residual liquid in a pore channel, drying and roasting to obtain the integral type catalyst for catalyzing and burning VOCs.
Because the cerium oxide and the zirconium oxide are introduced into the catalyst carrier, on one hand, the oxygen storage and sintering resistance of the catalyst are improved, and simultaneously, the specific surface area of the catalyst carrier is also improved, so that the catalytic efficiency is improved. In addition, non-noble metals such as cobalt and copper are used as active components, so that the production and use costs are greatly reduced.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A preparation method of an integral type catalyst for catalytic combustion of VOCs is characterized by comprising the following steps:
s10: fully and uniformly mixing kaolin, aluminum oxide, cerium oxide and zirconium oxide according to a certain proportion to obtain a mixture, adding water, and uniformly stirring to obtain pug;
s20: the pug is subjected to mulling and ageing, then a honeycomb blank is obtained through extrusion molding by using a customized die, and the honeycomb blank is dried and then roasted to obtain a catalyst carrier;
s30: dissolving copper nitrate and cobalt nitrate in deionized water according to a certain proportion to prepare a stable salt solution, and soaking the catalyst carrier in the salt solution for a certain time under a stirring state;
s40: and taking out the soaked catalyst carrier, blowing off residual liquid in the pore channel, drying and roasting to obtain the integral catalyst for catalytic combustion of VOCs.
2. The method of claim 1, wherein the kaolin, alumina, ceria, and zirconia have a mesh size greater than 1000 mesh.
3. The method of claim 1, wherein the ceria and zirconia are both greater than 99% pure.
4. The method for preparing an integral catalytic combustion VOCs catalyst of claim 1, wherein the kaolin, alumina, ceria, zirconia and water are mixed by mass as follows: 25% of kaolin, 15% of alumina, 12% of cerium oxide, 8% of zirconia and 40% of water.
5. The method of claim 1, wherein in step S20, the firing temperature of the honeycomb green body is 1000 ℃ and the firing time is 6 hours.
6. The method of claim 1, wherein the molar ratio of copper nitrate to cobalt nitrate is 3: and 7, wherein the mass concentration of the salt solution is 40%.
7. The method of claim 1, wherein the catalyst support is immersed in the salt solution for a period of 24 hours.
8. The method of claim 1, wherein in step S40, the calcination temperature of the catalyst carrier is 500 ℃ and the calcination time is 4 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211002127.8A CN115532271A (en) | 2022-08-20 | 2022-08-20 | Preparation method of integral type catalyst for catalytic combustion of VOCs |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211002127.8A CN115532271A (en) | 2022-08-20 | 2022-08-20 | Preparation method of integral type catalyst for catalytic combustion of VOCs |
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| CN202211002127.8A Pending CN115532271A (en) | 2022-08-20 | 2022-08-20 | Preparation method of integral type catalyst for catalytic combustion of VOCs |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008230937A (en) * | 2007-03-23 | 2008-10-02 | Ube Ind Ltd | Compound oxide and compound oxide carrier, and method for producing catalyst for exhaust gas clarification using them |
| CN109939689A (en) * | 2019-04-22 | 2019-06-28 | 内蒙古科技大学 | A kind of Rare Earth Mine monolithic catalyst, preparation method and applications |
| CN110876944A (en) * | 2019-12-09 | 2020-03-13 | 大连瑞克科技有限公司 | Catalyst for catalytic combustion and preparation method thereof |
| CN111908937A (en) * | 2020-07-08 | 2020-11-10 | 凯龙蓝烽新材料科技有限公司 | Honeycomb ceramic carrier for VOCs purification catalyst and preparation method thereof |
| CN112547084A (en) * | 2019-09-26 | 2021-03-26 | 中国石油化工股份有限公司 | Supported catalyst and preparation method and application thereof |
| CN114713233A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Non-noble metal coating-carrier catalyst, preparation method and application thereof |
-
2022
- 2022-08-20 CN CN202211002127.8A patent/CN115532271A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008230937A (en) * | 2007-03-23 | 2008-10-02 | Ube Ind Ltd | Compound oxide and compound oxide carrier, and method for producing catalyst for exhaust gas clarification using them |
| CN109939689A (en) * | 2019-04-22 | 2019-06-28 | 内蒙古科技大学 | A kind of Rare Earth Mine monolithic catalyst, preparation method and applications |
| CN112547084A (en) * | 2019-09-26 | 2021-03-26 | 中国石油化工股份有限公司 | Supported catalyst and preparation method and application thereof |
| CN110876944A (en) * | 2019-12-09 | 2020-03-13 | 大连瑞克科技有限公司 | Catalyst for catalytic combustion and preparation method thereof |
| CN111908937A (en) * | 2020-07-08 | 2020-11-10 | 凯龙蓝烽新材料科技有限公司 | Honeycomb ceramic carrier for VOCs purification catalyst and preparation method thereof |
| CN114713233A (en) * | 2020-12-22 | 2022-07-08 | 中国石油化工股份有限公司 | Non-noble metal coating-carrier catalyst, preparation method and application thereof |
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