CN106807350A - A kind of catalyst for removing nitrogen oxides - Google Patents
A kind of catalyst for removing nitrogen oxides Download PDFInfo
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- CN106807350A CN106807350A CN201710194574.0A CN201710194574A CN106807350A CN 106807350 A CN106807350 A CN 106807350A CN 201710194574 A CN201710194574 A CN 201710194574A CN 106807350 A CN106807350 A CN 106807350A
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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
- 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
- B01J23/84—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 arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/847—Vanadium, niobium or tantalum or polonium
- B01J23/8472—Vanadium
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- 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
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Environmental & Geological 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)
- Catalysts (AREA)
Abstract
The invention discloses a kind of catalyst for removing nitrogen oxides, it is characterised in that the component including following weight portion：0.5 1.5 parts of the di-iron trioxide of 500 mesh, 37 parts of the titanium dioxide of 1000 mesh, 500 nanometers of 0.2 0.8 parts of vanadic anhydride, 0.5 1.5 parts of the calcium hydroxide of 500 mesh, 0.2 0.8 parts of the magnesia of 1000 mesh, 0.5 1.5 parts of the bauxite of 500 mesh, 0.2 0.8 parts of four iron of the oxidation of 500 purpose three, 500 nanometers of 0.2 0.8 parts of zinc oxide.It is an object of the invention to provide a kind of catalyst for removing nitrogen oxides, the effectively nitrogen oxides in removing waste gas.
Description
Technical field
The present invention relates to technical field of waste gas treatment, more particularly to a kind of catalyst for removing nitrogen oxides.
Background technology
Substantial amounts of nitrogen oxides is typically contained in industrial waste gas, serious pollution is caused to environment, in efficient process waste gas
Nitrogen oxides be solve environmental pollution key.
The content of the invention
It is an object of the invention to provide a kind of catalyst for removing nitrogen oxides, the effectively nitrogen oxidation in removing waste gas
Thing.
In order to solve the above technical problems, the present invention is adopted the following technical scheme that：
A kind of catalyst for removing nitrogen oxides, including following weight portion component：
Di-iron trioxide 0.5-1.5 parts of 500 mesh
Titanium dioxide 3-7 parts of 1000 mesh
Vanadic anhydride 0.002-0.008 parts of 500 nanometers
Calcium hydroxide 0.5-1.5 parts of 500 mesh
Magnesia 0.2-0.8 parts of 1000 mesh
Bauxite 0.5-1.5 parts of 500 mesh
Iron 0.2-0.8 parts of the oxidation of 500 purpose three four
Zinc oxide 0.002-0.008 parts of 500 nanometers.
Further, including following weight portion component：
1 part of the di-iron trioxide of 500 mesh
5 parts of the titanium dioxide of 1000 mesh
0.005 part of 500 nanometers of vanadic anhydride
1 part of the calcium hydroxide of 500 mesh
0.5 part of the magnesia of 1000 mesh
1 part of the bauxite of 500 mesh
500 purpose three aoxidizes 0.5 part of four iron
0.005 part of 500 nanometers of zinc oxide.
A kind of method for removing the catalyst treatment nitrogen oxides of nitrogen oxides, each component is well mixed, by than
Surface area 1:1 is blown into nitrogen oxides blender.
Further, the blender includes outer barrel and inner cylinder, and the inner cylinder is arranged at the outer barrel and gap is matched somebody with somebody
Conjunction forms cavity, and the outer barrel lower end connects inlet cylinder, and the inlet cylinder is connected with the cavity, the sky above the inlet cylinder
A point compression ring plate is provided with chamber, multiple passages is provided with described point of compression ring plate, the cavity above described point of compression ring plate with it is many
Individual gas-distributing pipe connection, multiple described gas-distributing pipe one end are connected with the cavity, and the other end is extended to inside the inner cylinder, each point of gas
Pipe is in the arrangement that is inclined upwardly with the inwall of the inner cylinder, and sealing ring flat-plate is provided between the outer barrel and inner cylinder on the cavity top；
The outer barrel and inner cylinder of the cavity bottom are sealedly and fixedly connected base plate, and the inner cylinder upper end is gas outlet.
Further, 8 passages are circumferentially evenly distributed with described point of compression ring.
Further, the gas-distributing pipe totally 8, circumferentially formula is uniformly distributed.
Further, each gas-distributing pipe is 45 ° with the horizontal sextant angle and vertical angle of the inwall of the inner cylinder.
Compared with prior art, Advantageous Effects of the invention：By the collocation of reasonable component, efficient removal industry
Nitrogen oxides in waste gas, reduces environmental pollution；And coordinate special blender to use, improve treatment effeciency.
Brief description of the drawings
The invention will be further described for explanation below in conjunction with the accompanying drawings.
Fig. 1 is the main structure diagram of mixing system of the present invention；
Fig. 2 is the overlooking the structure diagram of mixing system of the present invention.
Description of reference numerals：1- outer barrels；2- inner cylinders；3- points of compression ring plate；301- passages；4- inlet cylinders；5- gas-distributing pipes；6-
Base plate；7- seals ring flat-plate；8- gas outlets；9- cavitys.
Specific embodiment
A kind of catalyst for removing nitrogen oxides, including following weight portion component：
1 part of the di-iron trioxide of 500 mesh
5 parts of the titanium dioxide of 1000 mesh
0.005 part of 500 nanometers of vanadic anhydride
1 part of the calcium hydroxide of 500 mesh
0.5 part of the magnesia of 1000 mesh
1 part of the bauxite of 500 mesh
500 purpose three aoxidizes 0.5 part of four iron
0.005 part of 500 nanometers of zinc oxide.
A kind of method for removing the catalyst treatment nitrogen oxides of nitrogen oxides,
Each component is well mixed, by specific surface area 1:1 is blown into nitrogen oxides blender as illustrated in fig. 1 and 2.
As illustrated in fig. 1 and 2, the blender includes outer barrel 1 and inner cylinder 2, and the inner cylinder 2 is arranged at the outer barrel 1
Internal and gap cooperatively forms cavity 9, and the lower end of the outer barrel 1 connection inlet cylinder 4, the inlet cylinder 4 is connected with the cavity 9,
A point compression ring plate 3 is provided with the cavity 9 of the top of the inlet cylinder 4, point compression ring plate 3 distinguishes sealing welding with outer barrel 1 and inner cylinder 2,
Circumferentially formula is evenly arranged with 8 passages 301 on described point of compression ring plate 3, the cavity 9 of described point of top of compression ring plate 3 and 8 points
Tracheae 5 is connected, and 8 one end of the gas-distributing pipe 5 are connected with the cavity 9, and the other end is extended to inside the inner cylinder 2, each point of gas
Pipe 5 is in the arrangement that is inclined upwardly with the inwall of the inner cylinder, and horizontal sextant angle and vertical angle with the inwall of the inner cylinder 2 are
45 °, sealing ring flat-plate 7 is provided between the outer barrel 1 and inner cylinder 2 on the top of the cavity 9；The outer barrel 1 and inner cylinder of the bottom of the cavity 9
2 are sealedly and fixedly connected base plate 7, and the upper end of the inner cylinder 2 is gas outlet 8.
Make simultaneously, by well mixed catalyst, cavity 9 to be entered through passage 301 by inlet cylinder 4 by booster fan,
And complete to be sufficiently mixed with pending waste gas in the eddy flow shape penetrating inner cylinder 2 for rising is interior through gas-distributing pipe 5 by cavity 9, catalyst meeting
Fully reacted with the nitrogen oxides in the waste gas in inner cylinder 2, so that nitrogen oxides therein is removed, through removing the useless of nitrogen oxides
Gas is discharged through gas outlet 8.
Embodiment described above is only that preferred embodiment of the invention is described, and not the scope of the present invention is carried out
Limit, on the premise of design spirit of the present invention is not departed from, those of ordinary skill in the art make to technical scheme
Various modifications and improvement, all should fall into claims of the present invention determination protection domain in.
Claims (7)
1. a kind of catalyst for removing nitrogen oxides, it is characterised in that the component including following weight portion：
Di-iron trioxide 0.5-1.5 parts of 500 mesh
Titanium dioxide 3-7 parts of 1000 mesh
Vanadic anhydride 0.002-0.008 parts of 500 nanometers
Calcium hydroxide 0.5-1.5 parts of 500 mesh
Magnesia 0.2-0.8 parts of 1000 mesh
Bauxite 0.5-1.5 parts of 500 mesh
Iron 0.2-0.8 parts of the oxidation of 500 purpose three four
Zinc oxide 0.002-0.008 parts of 500 nanometers.
2. the catalyst for removing nitrogen oxides according to claim 2, it is characterised in that including following weight portion
Component：
1 part of the di-iron trioxide of 500 mesh
5 parts of the titanium dioxide of 1000 mesh
0.005 part of 500 nanometers of vanadic anhydride
1 part of the calcium hydroxide of 500 mesh
0.5 part of the magnesia of 1000 mesh
1 part of the bauxite of 500 mesh
500 purpose three aoxidizes 0.5 part of four iron
0.005 part of 500 nanometers of zinc oxide.
3. the catalyst for removing nitrogen oxides according to claim 1, it is characterised in that：Each component is mixed when using
Close uniform, by specific surface area 1:1 is blown into nitrogen oxides blender.
4. the catalyst for removing nitrogen oxides according to claim 3, it is characterised in that：The blender includes outer
Cylinder and inner cylinder, the inner cylinder is arranged at the outer barrel and gap cooperatively forms cavity, and the outer barrel lower end connects inlet cylinder,
The inlet cylinder is connected with the cavity, a point compression ring plate is provided with the cavity above the inlet cylinder, on described point of compression ring plate
Be provided with multiple passages, the cavity above described point of compression ring plate connect with multiple gas-distributing pipes, multiple described gas-distributing pipe one end and
The cavity connection, the other end is extended to inside the inner cylinder, and each gas-distributing pipe is in the arrangement that is inclined upwardly with the inwall of the inner cylinder,
Sealing ring flat-plate is provided between the outer barrel and inner cylinder on the cavity top；Outer barrel and the inner cylinder sealing of the cavity bottom are fixed to be connected
Base plate is connect, the inner cylinder upper end is gas outlet.
5. mixing system according to claim 4, it is characterised in that：8 are circumferentially evenly distributed with described point of compression ring
Passage.
6. mixing system according to claim 4, it is characterised in that：The gas-distributing pipe totally 8, circumferentially formula is uniformly divided
Cloth.
7. the mixing system according to claim 4 or 6, it is characterised in that：The inwall of each gas-distributing pipe and the inner cylinder
Horizontal sextant angle and vertical angle be 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194574.0A CN106807350A (en) | 2017-03-29 | 2017-03-29 | A kind of catalyst for removing nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710194574.0A CN106807350A (en) | 2017-03-29 | 2017-03-29 | A kind of catalyst for removing nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106807350A true CN106807350A (en) | 2017-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710194574.0A Pending CN106807350A (en) | 2017-03-29 | 2017-03-29 | A kind of catalyst for removing nitrogen oxides |
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| Country | Link |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202315841U (en) * | 2011-09-28 | 2012-07-11 | 浙江省天正设计工程有限公司 | Annular blade type multi-cavity gas inlet distribution device |
| CN104275150A (en) * | 2014-10-16 | 2015-01-14 | 广州博能能源科技有限公司 | Deep smoke purifying material, and preparation method and use method thereof |
| CN104364356A (en) * | 2012-01-26 | 2015-02-18 | 谐和能源有限责任公司 | Mitigation of harmful combustion emissions using sorbent containing engineered fuel feedstocks |
| CN105032391A (en) * | 2015-06-24 | 2015-11-11 | 方耀 | Catalyst promoter for ammonia gas reduction denitration of coal-fired flue gas |
| CN105498749A (en) * | 2015-11-30 | 2016-04-20 | 安徽省元琛环保科技有限公司 | High-strength honeycomb-type thin-wall denitration catalyst and preparation method thereof |
-
2017
- 2017-03-29 CN CN201710194574.0A patent/CN106807350A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202315841U (en) * | 2011-09-28 | 2012-07-11 | 浙江省天正设计工程有限公司 | Annular blade type multi-cavity gas inlet distribution device |
| CN104364356A (en) * | 2012-01-26 | 2015-02-18 | 谐和能源有限责任公司 | Mitigation of harmful combustion emissions using sorbent containing engineered fuel feedstocks |
| CN104275150A (en) * | 2014-10-16 | 2015-01-14 | 广州博能能源科技有限公司 | Deep smoke purifying material, and preparation method and use method thereof |
| CN105032391A (en) * | 2015-06-24 | 2015-11-11 | 方耀 | Catalyst promoter for ammonia gas reduction denitration of coal-fired flue gas |
| CN105498749A (en) * | 2015-11-30 | 2016-04-20 | 安徽省元琛环保科技有限公司 | High-strength honeycomb-type thin-wall denitration catalyst and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 钱伯章: "《世界石油石化发展现状与趋势-资源、技术、战略》", 31 March 2007, 石油工业出版社 * |
| 魏振枢，等: "《环境保护概论》", 31 July 2003, 化学工业出版社 * |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170609 |