CN106861675A - Cordierite honeycomb ceramic is integrated low temperature denitrating catalyst of matrix and preparation method thereof - Google Patents
Cordierite honeycomb ceramic is integrated low temperature denitrating catalyst of matrix and preparation method thereof Download PDFInfo
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
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- 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
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- 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
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Abstract
Cordierite honeycomb ceramic is integrated low temperature denitrating catalyst of matrix and preparation method thereof, and it belongs to catalyst technical field.The catalyst is by matrix cordierite honeycomb ceramic（CC）, carrier TiO2 and the part of active component three constitute, and active component includes V2O5, Sb2O3, CeO3 and WO3.The preparation method of catalyst is pre-processed including matrix cordierite honeycomb ceramic, the selection of catalyst carrier TiO2 and the preparation of catalyst activity component maceration extract, impregnation sequence and operation, the treatment of material after dipping, prepared by cordierite honeycomb ceramic coating slurry, the step such as coating operation and drying, roasting.The catalyst low-temperature activity is good, can keep good removal of nitrogen oxide rate and water resistant sulfur resistance in 130 250 DEG C of temperature ranges.The catalyst may be mounted at after dust remover for coal boiler, overcome the shortcoming of existing gas denitrifying technology, can also be applied to the denitrating flue gas such as Industrial Stoves.Certainly also possesses the advantage of integral honeycomb ceramic catalyst.
Description
Technical field
It is the integrated low temperature denitrating catalyst and preparation method thereof of matrix the present invention relates to cordierite honeycomb ceramic, its category
In catalyst technical field.This catalyst can at a lower temperature, for fire coal boiler fume and most Industrial Stoves cigarettes
Qi exhaustion denitrification, realizes qualified discharge.
Background technology
Nitrogen oxides（NOx）It is main atmosphere pollution including NO, NO2, N2O etc..Nitrogen oxides in air can be with
Cause the destruction of acid rain, photochemical fog, greenhouse effects and ozone layer.The health of the mankind is also endangered, triggers such as bronchitis, lung
The diseases such as inflammation.63% NOx comes from industrial pollution and traffic pollution in air, is 2 times of naturally-occurring source, wherein electric power work
The discharge of industry and vehicle exhaust respectively accounts for 40%, and other industrial pollution sources account for 20%.
Reducing NOx discharges has 2 kinds of methods, and they are denitrating flue gas after Combustion Process Control and burning.Lead at this stage
To be realized using all kinds of low NOs by controlling the generation of combustion process NOx.As thing is stained to air in country
Emission control is stricter, and gas denitrifying technology also more comes into the picture, and some technologies have been applied.
SCR（SCR, selective catalytic reduction）It is under catalyst action, to lead to
Cross reducing agent（NH3）Nitrogen oxides is reduced into nitrogen, when the mol ratio of NH3/NOx is 1, the removal efficiency of NOx is reachable
90%, so as to reach the purpose of denitrating flue gas.It is that current commercial Application is most wide by the use of ammonia as the SCR technology of reducing agent
Stationary source denitration method for flue gas.
Catalyst is the core of SCR technology.According to the reaction temperature that different catalyst is applicable, SCR techniques are divided into
High temperature, in the gentle class of low temperature three.
The Applicable temperature of middling temperature DeNOx catalyst is 300 DEG C~400 DEG C, is the SCR skills of current commercial Application
Art.The catalyst for being used is that, with TiO2 as carrier, with V2O5 as main active component, WO3 or MoO3 is co-catalysis
The vanadium titanium system of agent, i.e. V2O5-WO3/TiO2 or V2O5-MoO3/TiO2.
It is in stationary source gas denitrifying technology to use integral catalyzer more, it is molded using extrusion more than catalyst.
Limited by temperature in use, Medium temperature SCR denitrating system is usually placed in the economizer and air preheater of boiler
Between.Because exhaust gas dust and heavy metal concentration are higher herein, catalyst is easily worn, is blocked and is poisoned and inactivates, contracting
The short service life of catalyst.
If after SCR denitration system is arranged in into deduster and devulcanizer, it is possible to overcome above disadvantage.But now cigarette
Temperature degree has fallen to less than 200 DEG C, Medium temperature SCR denitrating catalyst（V2O5-WO3/TiO2 or V2O5-MoO3/TiO2）
Do not applied to, as used this catalyst if need to increase substantially flue-gas temperature, consume big energy.
Therefore, researching and developing adaptable integrated low temperature SCR denitration has exigence.In addition, some
The Industrial Stoves such as cement kiln also largely discharge nitrogen oxides, but flue-gas temperature is relatively low, Medium temperature SCR denitrating catalyst
Do not apply to yet.A kind of low temperature SCR denitration catalyst has been recorded in patent 2012101982982, but it is at 150 DEG C, and it takes off
The efficiency of nitre is below 50%；Catalytic efficiency of its effect well below high temperature catalyst.
In sum, integrated low temperature SCR denitrating catalysts are developed significant.
The content of the invention
The present invention develops a kind of novel integral low temperature NH3-SCR catalyst for denitrating flue gas, and provides and prepare the catalysis
The complete method of agent.
Using catalyst of the invention can under relatively low cryogenic conditions,（150-250℃）Remove the cigarette of coal-burning boiler
Nitrogen oxides in gas, it can also be used to the denitrating flue gas of some Industrial Stoves.
The preparation method of this novel integral low-temperature SCR denitrating catalyst（In content as described below, each active component
All it is by weight）, it is characterised in that herein below and step：
（1）The pretreatment of catalyst matrix cordierite honeycomb ceramic：Honeycomb-like cordierite surface smoother,
Specific surface area very little（The m of ＜ 12/ g）, catalyst activity component be difficult to securely, be evenly dispersed in its surface,
Need the carrier as active component in the larger coating of honeycomb-like cordierite surface coating specific surface area.To increase coat
Firmness and coated weight, with hydrochloric acid that mass fraction is 8% as pretreating agent, in 80-90 DEG C, process time 2-3h, increase
The specific surface area and surface roughness of honeycomb-like cordierite, while also keep the mechanical strength of cellular shape cordierite.At acid
Neutrality is washed to after reason, weighing is dried standby.
（2）Carrier TiO2 is selected：For carrier TiO2, it is desirable to select a kind of use Production By Sulfuric Acid Process, the two of Detitanium-ore-type
Preparation of Nanocrystal TiO as catalyst carrier.A certain amount of carrier TiO2 is weighed after dried process,
（3）The preparation of maceration extract：According to TiO2The ratio of weight and active component weight：TiO2 70-85 parts, WO3 1-15
Part, V2O5 1-10 parts, Sb2O31-5 parts, CeO20-10 parts, calculate various active components predecessor-ammonium metavanadate,
The consumption and TiO of ammonium metatungstate, six water cerous nitrates and trichloride antimony2Consumption；By ammonium metavanadate, ammonium metatungstate, six water nitric acid
Cerium is soluble in water, and trichloride antimony is dissolved in absolute ethyl alcohol, and maceration extract is made after the two mixing, and the weight of maceration extract is TiO2 weight
1.5-2 times；
（4）Dip operation:Will be in step（3）The carrier TiO2 powder for claiming is put into step（3）Obtain containing ammonium metavanadate, inclined tungsten
In the solution of sour ammonium, trichloride antimony and cerous nitrate, the lower dipping of stirring 30 minutes is heated to 80 DEG C or so, and evaporation removes big portion's water
Point.110 DEG C dry 5-10 hours, and 500 DEG C are calcined 3-5 hours.200 mesh are ground to after material cooling.
（5）Cordierite honeycomb ceramic coats the preparation of slurries：By step（4）The obtained TiO2 for having supported active component
Be added in distilled water and be configured to slurries with the thin aluminium stone of water is intended, slurries pH is adjusted with nitric acid, after stirring, by slurries plus
Enter in ball mill the h of ball milling 2, obtain required coating slurries, solid content 20-25% or so.
（5）Coating operation：By step（1）Pretreated cordierite honeycomb ceramic impregnated in step（5）The coating of preparation
About 30 minutes in slurries, unnecessary slurries are blown away after taking-up, 50 DEG C of dryings 5 hours, 100 DEG C of dryings 4 hours, then through 550 DEG C of roastings 5
Hour；Dipping-drying-baking operation, is obtained integrated low temperature denitrating catalyst, V2O5-Sb2O3-CeO3-WO3/ in triplicate
TiO2/CC。
Beneficial effects of the present invention are by matrix cordierite honeycomb ceramic for the catalyst（CC）, carrier TiO2 and activearm
Three parts are divided to constitute, active component includes V2O5, Sb2O3, CeO3 and WO3.In order to increase the firmness of coat, the present invention is adopted
Acid treatment cordierite honeycomb ceramic is used, increases its surface area and surface roughness；The dual measure of adhesive is done with the thin aluminium stone of water is intended
Reach such purpose.The preparation method of catalyst is pre-processed including matrix cordierite honeycomb ceramic, catalyst carrier TiO2's
Selection and the preparation of catalyst activity component maceration extract, impregnation sequence and operation, the treatment of material after dipping, cordierite honeycomb pottery
Prepared by porcelain coating slurry, the step such as coating operation and drying, roasting.Obtained catalyst is V2O5-Sb2O3-CeO3-WO3/
TiO2/CC。
In 130 degree of low temperature, denitration efficiency reaches more than 87.5% to such catalyst, has much been higher by and has taken off in the prior art
Present situation of the nitre efficiency less than 50%.Catalyst low-temperature activity is good, can keep good nitrogen oxygen in 130-250 DEG C of temperature range
Compound removal efficiency and water resistant sulfur resistance.Due to high activity and mithridatism of the catalyst between 130-250 DEG C, this kind is urged
Agent may be mounted at after dust remover for coal boiler, overcome the shortcoming of existing gas denitrifying technology, can also be applied to industry kiln
The denitrating flue gas such as stove.
Specific embodiment
The present invention is carried out with embodiment below complete, clearly illustrated.Certainly, portion of the invention can only be listed here
Divide embodiment, and it is not all.Based on the embodiment in the present invention, other adjustment and change that those skilled in the art is done,
The scope of the present invention should all be belonged to.
Reagent in embodiment, carrier nano TiO 2 powder is purchased from Haitai Nano Material Co., Ltd., Nanjing, and remaining is purchased
From Chemical Reagent Co., Ltd., Sinopharm Group.
Embodiment 1
（1）Cordierite honeycomb ceramic is pre-processed：
It is 30 × 30 × 100 to take volume（Millimeter）Cordierite honeycomb ceramic material, be put into the hydrochloric acid solution that mass fraction is 8%
In, at a temperature of 80 DEG C, process 2 hours.Neutrality is washed to after pickling, is weighed after drying standby.
（2）Activity component impregnation liquid is prepared：
6.43 grams of ammonium metavanadate is weighed, is put into 200 milliliters of beakers, add 120 ml deionized waters, be heated to 80 DEG C, added
2.34 grams of ethylenediamines, stirring is completely dissolved it；Add ammonium metatungstate（WO3 contents：91%）11 grams and six water cerous nitrates 25.22
Gram, stir；3.13 grams of trichloride antimony is weighed, is dissolved in 10 milliliters of absolute ethyl alcohol, be subsequently poured into prepared above mixing
Close in solution, be made activity component impregnation liquid.
（3）Dipping, dry, roasting：
Weigh 73 grams of carrier nano TiO 2 powder and be put into step（2）In obtained maceration extract, impregnate 30 minutes, move to 80 DEG C of water-baths
On, stirring evaporates excessive moisture.110 DEG C of dryings 8 hours, 500 DEG C are calcined 4 hours, and 200 mesh are ground to after cooling.
（4）It is prepared by coating slurries：
By step（3）The carrier TiO2 impregnated of active component for obtaining adds 4 grams of boehmite powder plus 500 milliliters of water, plus
Nitric acid adjusts pH=4, and stirring pulping is put into ball mill, ball milling 2 hours, and coating slurry is obtained.
（5）Coating operation：
By step（1）Pretreated cordierite honeycomb ceramic impregnated in step（4）About 30 minutes in the coating slurries of preparation, take
Blow away unnecessary slurries after going out, 50 DEG C of dryings 5 hours, 100 DEG C of dryings 4 hours, then be calcined 5 hours through 550 DEG C；Soak in triplicate
Stain-drying-baking operation, is obtained integrated low temperature denitrating catalyst.Coating layer weight is cordierite honeycomb ceramic weight
18%.Based on raw materials used, the ratio of each component in coat（Weight）, V2O5:Sb2O3:CeO2:TiO2 = 5:2:10:10:
73。
Embodiment 2
（1）Cordierite honeycomb ceramic is pre-processed：
It is 30 × 30 × 100 to take volume（Millimeter）Cordierite honeycomb ceramic material, be put into the hydrochloric acid solution that mass fraction is 8%
In, at a temperature of 80 DEG C, process 2 hours.Neutrality is washed to after pickling, is weighed after drying standby.
（2）Activity component impregnation liquid is prepared：
6.43 grams of ammonium metavanadate is weighed, is put into 200 milliliters of beakers, add 120 ml deionized waters, be heated to 80 DEG C, added
2.34 grams of ethylenediamines, stirring is completely dissolved it；Add ammonium metatungstate（WO3 contents：91%）11 grams and six water cerous nitrates 25.22
Gram, stir；3.13 grams of trichloride antimony is weighed, is dissolved in 10 milliliters of absolute ethyl alcohol, be subsequently poured into prepared above mixing
Close in solution, be made activity component impregnation liquid.
（3）Dipping：
Weigh 73 grams of carrier nano TiO 2 powder and be put into step（2）In obtained maceration extract, impregnate 30 minutes, move to 80 DEG C of water-baths
On, stirring evaporates excessive moisture.
（4）It is prepared by coating slurries：
By step（3）The carrier TiO2 impregnated of active component predecessor for obtaining adds 4 grams of boehmite powder plus 400 milliliters
Water, pH=4 are adjusted with nitric acid, and stirring pulping is put into ball mill, ball milling 2 hours, and coating slurry is obtained.
（5）Coating operation：
By step（1）Pretreated cordierite honeycomb ceramic impregnated in step（4）About 30 minutes in the coating slurries of preparation, take
Blow away unnecessary slurries after going out, 50 DEG C of dryings 5 hours, 100 DEG C of dryings 4 hours, then be calcined 5 hours through 550 DEG C；Repeated impregnations-dry
Dry-baking operation three times, is obtained integrated low temperature denitrating catalyst.Coating layer weight is the 17 of cordierite honeycomb ceramic weight
%.Based on raw materials used, the ratio of each component in coat（Weight）, V2O5:Sb2O3:CeO2:TiO2 = 5:2:10:10:
73。
Embodiment 3
（1）Cordierite honeycomb ceramic is pre-processed：
It is 30 × 30 × 100 to take volume（Millimeter）Cordierite honeycomb ceramic material, be put into the hydrochloric acid solution that mass fraction is 8%
In, at a temperature of 80 DEG C, process 2 hours.Neutrality is washed to after pickling, is weighed after drying standby.
（2）Activity component impregnation liquid is prepared：
6.43 grams of ammonium metavanadate is weighed, is put into 200 milliliters of beakers, add 120 ml deionized waters, be heated to 80 DEG C, added
2.34 grams of ethylenediamines, stirring is completely dissolved it；Add ammonium metatungstate（WO3 contents：91%）11 grams, stir；Weigh trichlorine
Change 3.13 grams of antimony, be dissolved in 10 milliliters of absolute ethyl alcohol, be subsequently poured into mixed solution prepared above, be made active component
Maceration extract.
（3）Dipping, dry, roasting：
Weigh 83 grams of carrier nano TiO 2 powder and be put into step（2）In obtained maceration extract, impregnate 30 minutes, move to 80 DEG C of water-baths
On, stirring evaporates excessive moisture.110 DEG C of dryings 8 hours, 500 DEG C are calcined 4 hours.
（4）It is prepared by coating slurries：
By step（3）The carrier TiO2 for having supported active component for obtaining adds 4 grams of boehmite powder plus 500 milliliters of water, plus
Nitric acid adjusts pH=4, and stirring pulping is put into ball mill, ball milling 2 hours, and coating slurry is obtained.
（5）Coating operation：
By step（1）Pretreated cordierite honeycomb ceramic impregnated in step（4）About 30 minutes in the coating slurries of preparation, take
Blow away unnecessary slurries after going out, 50 DEG C of dryings 5 hours, 100 DEG C of dryings 4 hours, then be calcined 5 hours through 550 DEG C；Soak in triplicate
Stain-drying-baking operation, is obtained integrated low temperature denitrating catalyst.Coating layer weight is the 17 of cordierite honeycomb ceramic weight
%.Based on raw materials used, the ratio of each component in coat（Weight）, V2O5:Sb2O3:CeO2:TiO2 = 5:2:10:83.
The out of stock Activity determination of catalyst
The Activity determination result of the new type low temperature catalyst for denitrating flue gas prepared by above example is as shown in table 1.
Catalyst activity test experience condition：Simulated flue gas: 500 ppm NO,500 ppm NH3,10 vol% H2O,3
Vol% O2,200ppm SO2, N2 are Balance Air；40000/h of air speed.
Claims (3)
1. cordierite honeycomb ceramic for matrix integrated low temperature denitrating catalyst preparation method, it is characterised in that including with
Lower step：
The catalyst is by matrix cordierite honeycomb ceramic, carrier TiO2With active component composition, active component include V2O5,
Sb2O3, CeO3 and WO3；
（1）The pretreatment of catalyst matrix cordierite honeycomb ceramic：Cordierite with hydrochloric acid that mass fraction is 8% be pretreatment
Agent, in 80-90 DEG C, process time 2-3h, is washed to neutrality, drying for standby after acid treatment；
（2）Carrier TiO2 is selected：Titanic oxide nanos of the carrier TiO2 from the Detitanium-ore-type of Production By Sulfuric Acid Process；
（3）The preparation of maceration extract：According to TiO2The ratio of weight and active component weight：TiO2 70-85 parts, WO3 1-15
Part, V2O5 1-10 parts, Sb2O31-5 parts, CeO20-10 parts, calculate various active components predecessor-ammonium metavanadate,
The consumption and TiO of ammonium metatungstate, six water cerous nitrates and trichloride antimony2Consumption；By ammonium metavanadate, ammonium metatungstate, six water nitric acid
Cerium is soluble in water, and trichloride antimony is dissolved in absolute ethyl alcohol, and maceration extract is made after the two mixing, and the weight of maceration extract is TiO2 weight
1.5-2 times；
（4）Dipping, dry, roasting:Will be in step（3）The middle carrier TiO for claiming2Powder is put into step（3）What is obtained contains inclined vanadium
In the maceration extract of sour ammonium, ammonium metatungstate, trichloride antimony and cerous nitrate, the lower dipping of stirring 30 minutes is heated to 80-100 DEG C, evaporation
Remove excessive moisture；110 DEG C are dried 5-10 hours, and 500 DEG C are calcined 3-5 hours, and material is ground into 200 mesh or so after cooling；
（5）Cordierite honeycomb ceramic coats the preparation of slurries：By step（4）What is obtained has supported the TiO of active component2With plan water
Thin aluminium stone is configured to slurries in being added to distilled water, and slurries pH is adjusted with nitric acid, after stirring, slurries is added into ball milling
The h of ball milling 2 in machine, obtains required coating slurries, the solid content 20%-25% of the coating slurries；
（6）Coating operation：By step（1）Pretreated cordierite honeycomb ceramic impregnated in step（5）The coating slurries of preparation
In 30 minutes, blow away unnecessary slurries after taking-up, 50 DEG C of dryings 5 hours, 100 DEG C of dryings 4 hours, then be calcined 5 hours through 550 DEG C；
Dipping-drying-baking operation, is obtained integrated low temperature denitrating catalyst, V2O5-Sb2O3-CeO3-WO3/TiO2/ in triplicate
CC。
2. the cordierite honeycomb ceramic according to claim 1 is the preparation side of the integrated low temperature denitrating catalyst of matrix
Method, it is characterised in that：The water used in catalyst preparation process is deionized water.
3. the cordierite honeycomb ceramic according to claim 1 is the preparation side of the integrated low temperature denitrating catalyst of matrix
Catalyst prepared by method, it is characterised in that：The coating of carrier TiO2 and active component in the integrated low temperature denitrating catalyst
It is the 15-20% of cordierite honeycomb ceramic weight to measure；The carrier TiO2The ratio of weight and active component weight：TiO2 is accounted for
70-85 parts, WO3 accounts for 1-15 parts, and V2O5 accounts for 1-10 parts, Sb2O3Account for 1-5 parts, CeO2Account for 0-10 parts.
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| CN115364868A (en) * | 2022-08-30 | 2022-11-22 | 北京华电光大环境股份有限公司 | Catalyst for catalytic decomposition of ozone and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171062A (en) * | 1994-10-13 | 1998-01-21 | 罗纳·布朗克化学公司 | Nitrogen oxide reducing catalyst compositions based on tantalum, vanadium, iobium, copper or antimony |
| CN101396655A (en) * | 2008-10-23 | 2009-04-01 | 清华大学 | Titanium-base multi-component catalyst for power plant flue-gas SCR denitration and preparation method thereof |
| CN101961656A (en) * | 2010-09-30 | 2011-02-02 | 浙江工业大学 | High-temperature smoke selective catalytic reduction (SCR) denitration catalyst, preparation method and application thereof |
| CN102716752A (en) * | 2012-06-16 | 2012-10-10 | 江苏龙源催化剂有限公司 | Method for preparing low-temperature SCR (selective catalytic reduction) denitration catalyst |
| CN103933971A (en) * | 2014-04-23 | 2014-07-23 | 中国科学院山西煤炭化学研究所 | Low-temperature denitration catalyst as well as preparation method and application thereof |
| CN105126827A (en) * | 2015-09-10 | 2015-12-09 | 西南化工研究设计院有限公司 | Coated low-temperature flue gas denitration catalyst, and preparation method and application thereof |
-
2016
- 2016-12-30 CN CN201611252347.0A patent/CN106861675A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1171062A (en) * | 1994-10-13 | 1998-01-21 | 罗纳·布朗克化学公司 | Nitrogen oxide reducing catalyst compositions based on tantalum, vanadium, iobium, copper or antimony |
| CN101396655A (en) * | 2008-10-23 | 2009-04-01 | 清华大学 | Titanium-base multi-component catalyst for power plant flue-gas SCR denitration and preparation method thereof |
| CN101961656A (en) * | 2010-09-30 | 2011-02-02 | 浙江工业大学 | High-temperature smoke selective catalytic reduction (SCR) denitration catalyst, preparation method and application thereof |
| CN102716752A (en) * | 2012-06-16 | 2012-10-10 | 江苏龙源催化剂有限公司 | Method for preparing low-temperature SCR (selective catalytic reduction) denitration catalyst |
| CN103933971A (en) * | 2014-04-23 | 2014-07-23 | 中国科学院山西煤炭化学研究所 | Low-temperature denitration catalyst as well as preparation method and application thereof |
| CN105126827A (en) * | 2015-09-10 | 2015-12-09 | 西南化工研究设计院有限公司 | Coated low-temperature flue gas denitration catalyst, and preparation method and application thereof |
Non-Patent Citations (3)
| Title |
|---|
| 孔令彬 主编: "《宁夏环境保护文集》", 31 January 2015, 宁夏人民出版社 * |
| 张铁军 等: "锑掺杂对钒钛系催化剂低温脱硝活性的影响", 《燃料化学学报》 * |
| 曹政 等: "V2O5-Sb2O3-TiO2催化剂低温NH3还原NO及其抗H2O和SO2毒化性能", 《燃料化学学报》 * |
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