CN105642365A - Denitration catalyst - Google Patents
Denitration catalyst Download PDFInfo
- Publication number
- CN105642365A CN105642365A CN201510991981.5A CN201510991981A CN105642365A CN 105642365 A CN105642365 A CN 105642365A CN 201510991981 A CN201510991981 A CN 201510991981A CN 105642365 A CN105642365 A CN 105642365A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- catalyst
- denitrating catalyst
- pearlstone
- particle diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000003054 catalyst Substances 0.000 title claims abstract description 24
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 11
- 229920005610 lignin Polymers 0.000 claims abstract description 9
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000000454 talc Substances 0.000 claims abstract description 7
- 229910052623 talc Inorganic materials 0.000 claims abstract description 7
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 10
- 235000012222 talc Nutrition 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 abstract description 6
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 239000010451 perlite Substances 0.000 abstract 1
- 235000019362 perlite Nutrition 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 238000006253 efflorescence Methods 0.000 description 4
- 206010037844 rash Diseases 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000003916 acid precipitation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 238000001354 calcination Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/19—Catalysts containing parts with different compositions
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
- B01J21/063—Titanium; Oxides or hydroxides thereof
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- 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
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/30—Tungsten
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a denitration catalyst, which comprises the following raw materials by weight: 60%-70% of titanium dioxide, 9%-10% of tungsten trioxide, 2%-3% of vanadic anhydride, 2%-6% of lignin, 4%-8% of lignin fiber, 2%-3% of talc and 10%-18% of expanded perlite. Compared with similar products of the prior art, the catalyst has the characteristics of high compression strength, no pulverization, long service life, easy molding and demoulding in the production process, ideal porosity, high catalytic efficiency, lower catalyst amount and low cost.
Description
Technical field:
The invention belongs to catalyst technical field, particularly relate to a kind of denitrating catalyst.
Background technology:
Reporting according to the study, HUMAN HEALTH and animals and plants existence, except injuring except HUMAN HEALTH as primary pollutant, all can be caused certain injury, as formed acid rain, photo-chemical smog etc., also can produce multiple secondary pollution by oxynitride (NOX). Oxynitride is one of important as precursors thing generating ozone, is also the major reason of forming region fine particles pollution and gray haze, thus the developed area atmospheric visibilities such as China's Delta of the Pearl River are declined increasingly, and gray haze number of days constantly increases. Result of study also shows, the increase of nitrogen oxide emission makes China's acid rain pollution by sulfuric acid type to the compound transformation of sulfuric acid and nitric acid, the ratio of nitrate ion shared by acid rain progressively rises to 1/3 in recent years from the 1/10 of the eighties in last century, in today that environmental consciousness and requirement are more and more stronger, how to remove the discharge of oxynitride, become more and more urgent problem.
At present, the oxynitride of China mainly produces from coal combustion and industrial fume discharge, although prior art can remove oxynitride to a certain extent for removing the denitrating catalyst of oxynitride, but it is low still to there is catalyst strength, easy efflorescence, work-ing life are short, making processes is not easy shaping and demoulding, and porosity is undesirable, and catalytic efficiency is low, catalyst levels is big, the high deficiency of cost.
Summary of the invention:
It is an object of the invention to as solving above technical problem, it is provided that a kind of compressive strength height, not easily efflorescence, long service life, the easy shaping and demoulding of making processes and ideal porosity, catalytic efficiency height, catalyst levels is few and cost is lower denitrating catalyst
For realizing the object of the invention, technical scheme used is: provide a kind of denitrating catalyst, and it comprises the raw material composition of following weight percent:
Titanium dioxide 60%��70%; Tungstic oxide 9%��10%; Vanadium Pentoxide in FLAKES 2%��3%: xylogen 2%��6%; Lignin fibre 4%��8%; Talcum 2%��3%; Pearlstone 10%��18%.
Described titanium dioxide is rutile titanium dioxide, and particle diameter is 60��80nm.
The particle diameter of described pearlstone is 80��100 orders.
Compared with prior art, the present invention have following significantly a little or useful effect:
1, the present invention is because adding xylogen and lignin fibre, improve the intensity (compressive strength reaches about 6t) of catalyzer, its physicals is also enhanced, and due to xylogen possess excellent cohesiveness, dispersion property and sequestering, make catalyzer not easily efflorescence, catalytic effect improves further, thus extends the work-ing life of catalyzer;
2, the present invention's adding because of lignin fibre and pearlstone, add porosity (porosity can reach 0.45) and the specific surface area of catalyzer, thus significantly improve the catalytic efficiency of catalyzer, and significantly reduce consumption and the use cost of catalyzer;
3, the present invention's adding because of talcum, under the prerequisite ensureing catalyzer plastic type performance and demoulding success ratio, the volatilization that can reduce again organism in calcination process is on the impact of product performance.
Embodiment:
Illustrate below in conjunction with concrete embodiment, but the invention is not restricted to following concrete embodiment:
Embodiment one:
A kind of denitrating catalyst, it comprises the raw material composition of following weight percent:
Titanium dioxide 70%; Tungstic oxide 9%; Vanadium Pentoxide in FLAKES 2%: xylogen 3%; Lignin fibre 4%; Talcum 2%; Pearlstone 10%.
Described titanium dioxide is rutile titanium dioxide, and particle diameter is 60��70nm.
The particle diameter of described pearlstone is 80��100 orders.
According to following making step being prepared by above-mentioned raw materials finished product, adopts routine techniques preparation in industry, flow process is as follows: raw material weigh after mixing pre-extruded old extrude primary drying redrying calcining module assembled.
Embodiment two:
A kind of denitrating catalyst, it comprises the raw material composition of following weight percent:
Titanium dioxide 60%; Tungstic oxide 10%; Vanadium Pentoxide in FLAKES 3%: xylogen 6%; Lignin fibre 5%; Talcum 3%; Pearlstone 13%.
Described titanium dioxide is rutile titanium dioxide, and particle diameter is 70��80nm.
The particle diameter of described pearlstone is 80��100 orders.
Embodiment three:
A kind of denitrating catalyst, it comprises the raw material composition of following weight percent:
Titanium dioxide 65%; Tungstic oxide 9.5%; Vanadium Pentoxide in FLAKES 2.5%: xylogen 4%; Lignin fibre 6%; Talcum 3%; Pearlstone 10%.
Described titanium dioxide is rutile titanium dioxide, and particle diameter is 60��80nm.
The particle diameter of described pearlstone is 80��100 orders.
The preparation method of embodiment two and three is with embodiment one.
Denitrating catalyst sample for prepared by embodiment three: use universal test machine testing, test products: size 120 �� 120 �� 120mm316 hole, hole �� 16, test structure is 5.9t.
Use specific surface area and porosity analyser detect aperture porosity: 0.45 can be reached.
By the catalyst sample of above-mentioned preparation, carry out Performance Detection to show: the denitrating catalyst compressive strength height of the present invention, catalyzer not easily efflorescence thus extend work-ing life of catalyzer, the porosity of denitrating catalyst increases, thus improve catalytic efficiency, decrease catalyst levels, reduce use cost.
Claims (3)
1. a denitrating catalyst, it is characterised in that: it comprises the raw material composition of following weight percent:
Titanium dioxide 60%��70%; Tungstic oxide 9%��10%; Vanadium Pentoxide in FLAKES 2%��3%: xylogen 2%��6%; Lignin fibre 4%��8%; Talcum 2%��3%; Pearlstone 10%��18%.
2. denitrating catalyst according to claim 1, it is characterised in that: described titanium dioxide is rutile titanium dioxide, and particle diameter is 60��80nm.
3. denitrating catalyst according to claim 1, it is characterised in that: the particle diameter of described pearlstone is 80��100 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510991981.5A CN105642365A (en) | 2015-12-25 | 2015-12-25 | Denitration catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510991981.5A CN105642365A (en) | 2015-12-25 | 2015-12-25 | Denitration catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105642365A true CN105642365A (en) | 2016-06-08 |
Family
ID=56477576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510991981.5A Pending CN105642365A (en) | 2015-12-25 | 2015-12-25 | Denitration catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105642365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262155A (en) * | 2017-07-14 | 2017-10-20 | 太仓市老船长船舶服务有限公司 | A kind of denitrating catalyst |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040180783A1 (en) * | 2003-03-14 | 2004-09-16 | Shigeru Nojima | Flue gas denitration catalyst and preparation process |
| CN101829560A (en) * | 2010-04-19 | 2010-09-15 | 瑞基科技发展有限公司 | Denitration catalyst |
| CN104437530A (en) * | 2014-12-24 | 2015-03-25 | 西安元创化工科技股份有限公司 | Preparation method of denitration catalyst |
-
2015
- 2015-12-25 CN CN201510991981.5A patent/CN105642365A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040180783A1 (en) * | 2003-03-14 | 2004-09-16 | Shigeru Nojima | Flue gas denitration catalyst and preparation process |
| CN101829560A (en) * | 2010-04-19 | 2010-09-15 | 瑞基科技发展有限公司 | Denitration catalyst |
| CN104437530A (en) * | 2014-12-24 | 2015-03-25 | 西安元创化工科技股份有限公司 | Preparation method of denitration catalyst |
Non-Patent Citations (2)
| Title |
|---|
| 朱洪法: "《催化剂载体制备及应用技术》", 31 October 2014, 石油工业出版社 * |
| 费学宁，等: "《非均相光催化剂——有机合成、降解、设备及应用》", 31 December 2011, 科学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262155A (en) * | 2017-07-14 | 2017-10-20 | 太仓市老船长船舶服务有限公司 | A kind of denitrating catalyst |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160608 |