CN102407114A - Microwave catalyst for copper molecular sieve and microwave catalytic denitration method - Google Patents
Microwave catalyst for copper molecular sieve and microwave catalytic denitration method Download PDFInfo
- Publication number
- CN102407114A CN102407114A CN2011104511924A CN201110451192A CN102407114A CN 102407114 A CN102407114 A CN 102407114A CN 2011104511924 A CN2011104511924 A CN 2011104511924A CN 201110451192 A CN201110451192 A CN 201110451192A CN 102407114 A CN102407114 A CN 102407114A
- Authority
- CN
- China
- Prior art keywords
- microwave
- molecular sieve
- catalyst
- copper
- reaction
- 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
Links
Abstract
The invention relates to a microwave catalyst for a copper molecular sieve and a microwave catalytic denitration method. A ZSM molecular sieve, a Y molecular sieve and a beta molecular sieve are taken as substrates for preparing the microwave catalyst for the copper molecular sieve, wherein the mass ratios of copper contents are respectively 2%-12%, 2%-15% and 2%-12%. An ion exchange method, a solid-phase dispersion method and a microwave solid-phase reaction method serve as the preparation method of the microwave catalyst. The microwave catalytic denitration method, to which the microwave catalyst for the copper molecular sieve is applied, comprises the following steps: filling the microwave catalyst for the copper molecular sieve in a reaction tube of a microwave catalytic reactor device, thereby forming a microwave catalytic reaction bed; and then generating a gas-solid reaction by use of a processed gas while passing by the microwave catalytic reaction bed, thereby performing the denitration treatment, wherein the reaction temperature is 150-550 DEG C, and the reaction retention time is 1-5 seconds. Copper oxide is mixed with the microwave catalyst for the copper molecular sieve; the mass ratio of the added copper oxide is 15-45%; activated carbon is mixed with the microwave catalyst; and the mass ratio of the added activated carbon is 5-35%. The microwave catalyst has the advantages of high conversion rate, small energy consumption, energy conservation, environmental friendliness, low cost, and the like.
Description
Technical field
The present invention relates to a kind of copper zeolite microwave catalyst and microwave catalysis method of denitration thereof.
Background technology
Along with Chinese economic development, the consumption of energy-output ratio, particularly fossil energy increases considerably.Corresponding therewith, the pollution level of atmosphere is also increasingly sharpened, and is that main energy resource structure is the principal element that influences China's atmosphere quality with the coal.At present, the thermal power plant of China more than 95% is to be main with fire coal, is difficult in a short time change.The sulfur dioxide that discharges in the coal-fired process, carbon dioxide, nitrogen oxide and dust account for 87%, 71%, 67% and 60% of China's discharge capacity respectively.In China, dust has obtained better controlled and improvement; Flue gas desulfurization technique also reaches its maturity, and the flue gas desulfurization project is being carried out in an orderly manner; The pollution that has nitrogen oxide only is not effectively controlled as yet." 12 " are the important period of China's economic development, also are the critical periods of nitrogen oxide control, how to take denitration measure efficiently, and the pollution of eliminating nitrogen oxide has become the important topic in the environmental protection.It is to be that the SCR technology of reducing agent is NH with ammonia that the technology of using is gone up in industry at present
3-SCR method, NH
3-SCR method is one of method the most ripe in the existing nitrogen oxide treatment technology, and this method can make the removal of nitrogen oxide rate reach 80～90% under lower temperature.Its weak point: the reducing agent consumption is big, and catalyst is prone to poison, and the pipeline equipment requirement is high and denitration efficiency is not high.
Can direct catalytic decomposition NO from Copper Ion Exchange type ZSM-5 molecular sieve catalyst
xSince, the Cu-ZSM-5 catalyst is considered to the denitrating catalyst of tool prospects for commercial application with good catalytic activity and stability.It has been generally acknowledged that in the direct catalytic decomposition NO reaction that with Cu-ZSM-5 is catalyst, the activation of NO is mainly carried out on the Cu species, the intermediate product that forms after the activation generates products such as nitrogen and oxygen under the acting in conjunction of acidity of catalyst position.According to gas solid catalytic reaction mechanism, the surface bond ability of solid catalyst is an adsorption activation reaction molecular ability, depends on surface and shape characteristic thereof strongly, and the Cu species that are distributed in molecular sieve outer surface maybe be more favourable to the NO activation.Experimental result showed in the past, and the catalyst for preparing with ion-exchange has the Cu species migration of considerable part to get in the molecular sieve pore passage after high-temperature roasting.In order further to investigate of the effect of the Cu species of molecular sieve outer surface to the NO cartalytic decomposition effect; And the structure-activity relationship of catalyst surface microstructure, chemical property and catalytic perfomance; And make the Cu species be dispersed in molecular sieve outer surface more, can adopt microwave solid phase method and solid phase dispersion method to prepare catalyst.The solid phase dispersion method is based on metallic salt or metal oxide spontaneous dispersion principle on the bigger serface carrier and prepares catalyst.Owing to receive the influence of factors such as metal ion transport, after the mechanical mixture, cause the solid ionic exchange reaction through heating, the heating-up temperature that needs usually is high, and the reaction time is long, so metal component is difficult to be effectively controlled in the distribution of molecular sieve surfaces externally and internally.And microwave is as a kind of unionized electromagnetic energy, and heating using microwave has fast and special galvanomagnetic-effect, and heated material do not had characteristics such as destruction.Therefore, can improve firing rate and control the distribution of active component with microwave heating at the molecular sieve surfaces externally and internally.Over nearly 20 years, the various countries scientist has carried out a large amount of research to the Cu-ZSM-5 catalyst.The distribution and exist the form difference that the research of its catalytic decomposition NO activity influence is also had report of falling about Cu species on the Cu-ZSM-5 catalyst.But the conversion ratio with Cu-ZSM-5 catalyst decomposing N O is up to 70%, its weak point: Cu-ZSM-5 catalyst conversion ratio is low, denitration efficiency is low, does not reach emission request.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of efficient copper zeolite microwave catalysts high, energy-conserving and environment-protective and microwave catalysis method of denitration thereof are provided.
The purpose of copper zeolite microwave catalyst of the present invention is achieved through following technical proposals: comprise the ZSM molecular sieve; Said ZSM molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the ZSM molecular sieve is that matrix is prepared cupric ZSM molecular sieve catalyst; The mass ratio of copper content is 2%-12%, preferred 3%-8%.
Said copper ZSM molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
The purpose of copper zeolite microwave catalyst of the present invention can also be achieved through following technical proposals: comprise Y molecular sieve; Said Y molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the Y molecular sieve is that matrix is prepared cupric Y molecular sieve catalyst; The mass ratio of copper content is 2%-15%, preferred 3%-10%.
Said copper Y molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
The purpose of copper zeolite microwave catalyst of the present invention can also be achieved through following technical proposals: comprise beta-molecular sieve; Said beta-molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the beta-molecular sieve is that matrix is prepared cupric beta-molecular sieve catalyst; The mass ratio of copper content is 2%-12%, preferred 3%-8%.
Said copper beta-molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
Copper zeolite microwave catalyst of the present invention is used for the method for microwave catalysis denitration; Said method is included in that catalyst filling forms the microwave catalysis reaction bed in the reaction tube of microwave catalysis reactor assembly, and the gas that is processed gas-solid reaction takes place through the microwave catalysis reaction bed time carries out the denitration processing; Said catalyst is above-mentioned optional described copper zeolite microwave catalyst, and operating temperature is a 150-550 degree Celsius; The reaction time of the said gas that is processed in the microwave catalysis reaction bed is 1-5 second, preferred 1.5-4 second.
Mixed oxidization copper in the said catalyst, the mass ratio of the addition of cupric oxide are 10-70%, preferred 30-45%.
Mixed active charcoal in the said catalyst, the mass ratio of the addition of active carbon are 5-35%, preferred 15-30%.
Compared with prior art, the present invention has the following advantages: conversion ratio is high, little, the energy-conserving and environment-protective of energy consumption, and cost is low.
The specific embodiment
Below in conjunction with embodiment the present invention is described further:
Copper zeolite microwave catalyst scheme 1:
Comprise the ZSM molecular sieve, said ZSM molecular sieve is that matrix is prepared cupric ZSM molecular sieve catalyst for absorbing the molecular sieve with loose structure of microwave with the ZSM molecular sieve, and the mass ratio of copper content is 2%-12%, preferred 3%-8%.
Said copper ZSM molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
Copper zeolite microwave catalyst scheme 2:
Comprise Y molecular sieve, said Y molecular sieve is that matrix is prepared cupric Y molecular sieve catalyst for absorbing the molecular sieve with loose structure of microwave with the Y molecular sieve, and the mass ratio of copper content is 2%-15%, preferred 3%-10%.
Said copper Y molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
Copper zeolite microwave catalyst scheme 3:
Comprise beta-molecular sieve, said beta-molecular sieve is that matrix is prepared cupric beta-molecular sieve catalyst for absorbing the molecular sieve with loose structure of microwave with the beta-molecular sieve, and the mass ratio of copper content is 2%-12%, preferred 3%-8%.
Said copper beta-molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
Copper zeolite microwave scheme 1-3 of the present invention is used for the method for microwave catalysis denitration; Said method is included in that catalyst filling forms the microwave catalysis reaction bed in the reaction tube of microwave catalysis reactor assembly, and the gas that is processed gas-solid reaction takes place through the microwave catalysis reaction bed time carries out the denitration processing; Said catalyst is the optional described copper zeolite microwave catalyst of copper zeolite microwave scheme 1-3, and operating temperature is a 150-550 degree Celsius; The reaction time of the said gas that is processed in the microwave catalysis reaction bed is 1-5 second, preferred 1.5-4 second.
Mixed oxidization copper in the said catalyst, the mass ratio of the addition of cupric oxide are 10-70%, preferred 30-45%.
Mixed active charcoal in the said catalyst, the mass ratio of the addition of active carbon are 5-35%, preferred 15-30%.
Following examples derive from the laboratory.
Following examples are example with copper ZSM-5 molecular sieve.
Other embodiment repeat no more.
AC represents active carbon.
Embodiment 1, is matrix with the ZSM-5 molecular sieve, prepares the copper zeolite catalyst with the microwave solid phase method.
Referring to table 1.
Ratio according to table 1 takes by weighing Cu (AC)
2With fully grinding after the HZSM-5 molecular sieve mechanical mixture, put into the Phoenix microwave Muffle furnace that CEM company produces then, first temperature programming is to 473K, and keeping temperature then is 473K calcining 20min down, and the catalyst that makes is represented with Mcu-HZSM-5.
The content of Cu on the Cu-ZSM-5 molecular sieve catalyst of table 1 microwave solid phase method preparation
| Cu(AC) 2With the HZSM-5 mass ratio | Roasting time (min) | Cu content (%) |
| 1∶9 | ?20 | 2.31 |
| 1∶7 | ?20 | 3.66 |
| 1∶5 | ?20 | 5.65 |
| 1∶3 | ?20 | 8.96 |
| 1∶1 | ?20 | 23.11 |
Embodiment 2,
With the ZSM-5 molecular sieve is matrix, prepares the copper zeolite catalyst with ion-exchange.
The catalyst sample that makes is seen table 2.Press the Cu (AC) of table 2 respectively
2Solution concentration is put into the HZSM-5 molecular sieve of 15g 1 liter Cu (AC)
2In the solution, regulating pH value to 7 with ammoniacal liquor, is the stirred in water bath 12h of 323K in temperature, and vacuum filtration is used the deionized water agitator treating then, filters dry 10h under 373K, roasting 6h under 773K at last.Prepare different Cu content copper zeolite catalyst respectively; Also can above-mentioned sample repeatedly be exchanged.The catalyst that makes is represented with L Cu-HZSM-5.
The content of Cu on the Cu-ZSM-5 molecular sieve catalyst of table 2 ion-exchange preparation
* twice usefulness ion-exchange of Cu-ZSM-5 molecular sieve catalyst sample prepares.
Embodiment 3, are matrix with the ZSM-5 molecular sieve, prepare the copper zeolite catalyst with the solid phase dispersion method.
Cu (AC) with 10g
2With fully grind after the HZSM-5 molecular sieve mechanical mixture of 15g, then in Muffle furnace under 473K roasting 6h, the catalyst that makes is represented with SCu-HZSM-5.
Among three kinds of preparation methods that above embodiment 1-3 adopts respectively, embodiment 1 microwave solid reaction process can prepare copper content high catalyst, and embodiment 3 solid phase dispersion method copper disperse inhomogeneous.
Embodiment 4:
In the laboratory, said waste gas be Dalian Da Te gas Co., Ltd provide for N
2With the gaseous mixture that NO forms, wherein NO concentration is 1000ppm.
Gas analyzer is Americanized 42C NO-NO
2-NO
xAnalyzer.
The power 0-1000w of microwave field is adjustable continuously, and frequency is 2400-2500MHz.Quartz tube reactor is WG1/2.45-Φ 5.4 * 54.The quartzy pipe range 535mm that this experiment is used, internal diameter 10mm.
Adopt the catalyst of embodiment 2.
Catalyst is filled in forms the microwave catalyst bed in the quartz tube reactor, the waste gas of test usefulness carries out the direct decomposing N O reaction of microwave catalysis through the microwave catalyst bed.
The amount of fill of catalyst is 4g, and the mass fraction of Cu is 5%.Air inlet NO concentration is 1000ppm, and flow-control is at 160ml/min, and oxygen content is 5.88%, to the control of microwave power automatic catch, makes reaction bed temperature maintain 120 ℃, 150 ℃, 180 ℃ respectively, and reaction pressure is a normal pressure.Carry out the experiment that microwave catalysis removes NO, change the reaction result such as the table 3 of different temperatures:
The reaction result of table 3. different catalysts bed temperature
When reaction bed temperature was 180 ℃, the conversion ratio of NO had reached 82.4%, and under the situation of visible low temperature, microwave catalysis Cu-ZSM-5 molecular sieve catalyst decomposing N O has good effect.
Embodiment 5:
Basic identical with embodiment 4, different is that the catalyst of loading is the CuO-Cu-ZSM-5 of 5g, and the mass fraction of Cu is 5% among the Cu-ZSM-5, and the mass fraction of CuO is 40% among the CuO-Cu-ZSM-5.To the control of microwave power automatic catch, make reaction bed temperature respectively at 180 ℃, 300 ℃, 380 ℃, reaction pressure is a normal pressure.Carry out the experiment that microwave catalysis removes NO, change the reaction result such as the table 4 of different temperatures:
The reaction result of table 4. different catalysts bed temperature
When 380 ℃ of reaction bed temperatures, CuO-Cu/ZSM-5 has the effect of magical decomposing N O in the microwave catalysis reactor, and the NO conversion ratio reaches 98.93%.
Embodiment 6:
Basic identical with embodiment 4, different is that the catalyst of loading is the CuO-Cu-ZSM-11 of 5g, and the mass fraction of Cu is 5% among the Cu-ZSM-11, and the mass fraction of CuO is 40% among the CuO-Cu/ZSM-11.To the control of microwave power automatic catch, make reaction bed temperature maintain 180 ℃, 300 ℃, 380 ℃ respectively, reaction pressure is a normal pressure.Carry out the experiment that microwave catalysis removes NO, change the reaction result such as the table 5 of different temperatures:
The reaction result of table 5. different catalysts bed temperature
When 380 ℃ of reaction bed temperatures, CuO-Cu/ZSM-11 has the effect of magical decomposing N O in the microwave catalysis reactor, and the NO conversion ratio reaches 99.13%.
Embodiment 7:
Basic identical with embodiment 4, different is that the catalyst of loading is the CuO-Cu-Y of 5g, and the mass fraction of Cu is 5% among the Cu-Y, and the mass fraction of CuO is 40% among the CuO-Cu-Y.To the control of microwave power automatic catch, make reaction bed temperature maintain 180 ℃, 300 ℃, 380 ℃ respectively, reaction pressure is a normal pressure.Carry out the experiment that microwave catalysis removes NO, change the reaction result such as the table 6 of different temperatures:
The reaction result of table 6. different catalysts bed temperature
When 380 ℃ of reaction bed temperatures, CuO-Cu-Y has the effect of magical decomposing N O in the microwave catalysis reactor, and the NO conversion ratio reaches 98.76%.
Embodiment 8:
Basic identical with embodiment 4, different is that the catalyst of loading is the CuO-Cu-beta catalyst of 5g, the Cu-beta catalyst.The mass fraction of middle Cu is 5%, the CuO-Cu-beta catalyst.The mass fraction of middle CuO is 40%.To the control of microwave power automatic catch, make reaction bed temperature respectively at 180 ℃, 300 ℃, 380 ℃, reaction pressure is a normal pressure.Carry out microwave catalysis and remove NO experiment, the reaction result such as the table 7 of different temperatures.
The reaction result of table 7. different catalysts bed temperature
When 380 ℃ of reaction bed temperatures, CuO-Cu/ beta catalyst efficient decomposing N O in the microwave catalysis reactor, the NO conversion ratio reaches 98.96%.
Embodiment 9,
Basic identical with embodiment 4, different is the Cu-ZSM-5 catalyst of loading 30%AC+ copper content 5%,
The Cu-ZSM-5 catalyst filling amount 10ml of 30%AC+ copper content 5%, gas flow 160ml/min.Import NO content 1000ppm. oxygen flow 12ml/min, oxygen content 5.88%.
Table 8. microwave power removes the active influence of NO to 30%C+5%Cu-ZSM-5
| Sequence number | Microwave power | The beds equilibrium temperature | Outlet NO content | Conversion ratio |
| 1 | 300W | 220℃ | 99.1ppm | 90.09％ |
| 2 | 500W | 300℃ | 22.3ppm | 97.77％ |
| 3 | 800W | 580℃ | 3.59ppm | 99.64％ |
Conclusion: the increase NO conversion ratio with microwave power rises.
Claims (9)
1. copper zeolite microwave catalyst; Comprise the ZSM molecular sieve, it is characterized in that said ZSM molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the ZSM molecular sieve is that matrix is prepared cupric ZSM molecular sieve catalyst, and the mass ratio of copper content is 2%-12%.
2. copper zeolite microwave catalyst according to claim 1 is characterized in that, said copper ZSM molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
3. copper zeolite microwave catalyst; Comprise Y molecular sieve, it is characterized in that said Y molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the Y molecular sieve is that matrix is prepared cupric Y molecular sieve catalyst, and the mass ratio of copper content is 2%-15%.
4. copper zeolite microwave catalyst according to claim 3 is characterized in that, said copper Y molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
5. copper zeolite microwave catalyst; Comprise beta-molecular sieve, it is characterized in that said beta-molecular sieve is for absorbing the molecular sieve with loose structure of microwave; With the beta-molecular sieve is that matrix is prepared cupric beta-molecular sieve catalyst, and the mass ratio of copper content is 2%-12%.
6. copper zeolite microwave catalyst according to claim 5 is characterized in that, said copper beta-molecular sieve catalyst adopts ion-exchange, solid phase dispersion method and the preparation of microwave solid reaction process.
7. method that the optional described copper zeolite microwave catalyst of claim 1-6 is used for the microwave catalysis denitration; Said method is included in that catalyst filling forms the microwave catalysis reaction bed in the reaction tube of microwave catalysis reactor assembly, and the gas that is processed gas-solid reaction takes place through the microwave catalysis reaction bed time carries out the denitration processing; It is characterized in that said catalyst is the optional described copper zeolite microwave catalyst of claim 1-6, operating temperature is a 150-550 degree Celsius; The reaction time of the said gas that is processed in the microwave catalysis reaction bed is 1-5 second.
8. one kind with the described method of claim 7, it is characterized in that mixed oxidization copper in the said catalyst, the mass ratio of the addition of cupric oxide are 10-70%.
9. one kind with claim 7 or 8 described methods, it is characterized in that mixed active charcoal in the said catalyst, the mass ratio of the addition of active carbon are 5-35%.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104511924A CN102407114A (en) | 2011-12-30 | 2011-12-30 | Microwave catalyst for copper molecular sieve and microwave catalytic denitration method |
| PCT/CN2012/087347 WO2013097677A1 (en) | 2011-12-30 | 2012-12-24 | Microwave catalyst and preparation process and use thereof |
| US14/369,242 US9168514B2 (en) | 2011-12-30 | 2012-12-24 | Microwave catalyst and preparation process and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104511924A CN102407114A (en) | 2011-12-30 | 2011-12-30 | Microwave catalyst for copper molecular sieve and microwave catalytic denitration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102407114A true CN102407114A (en) | 2012-04-11 |
Family
ID=45909638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104511924A Pending CN102407114A (en) | 2011-12-30 | 2011-12-30 | Microwave catalyst for copper molecular sieve and microwave catalytic denitration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102407114A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103127950A (en) * | 2013-02-22 | 2013-06-05 | 岳阳怡天化工有限公司 | Cu-ZSM catalyst, and preparation method and application thereof |
| WO2013097677A1 (en) * | 2011-12-30 | 2013-07-04 | 湘潭大学 | Microwave catalyst and preparation process and use thereof |
| CN104028299A (en) * | 2014-06-19 | 2014-09-10 | 中国石油大学(北京) | Copper-based microporous composite molecular sieve-based catalyst for FCC (fluid catalytic cracking) regenerated flue gas denitration, and preparation method and application thereof |
| CN104437080A (en) * | 2014-12-29 | 2015-03-25 | 湘潭大学 | Denitration method for microwave catalytic decomposition of NO and method of preparing Cu-ZSM-11 |
| CN106582642A (en) * | 2016-12-14 | 2017-04-26 | 湘潭大学 | Novel combined catalyst and method for selective catalytic reduction of NO by using same |
| CN107233914A (en) * | 2017-05-27 | 2017-10-10 | 清华大学 | A kind of preparation method of molecular sieve denitrating catalysts of Cu SAPO 47 and its denitration application |
| CN115445375A (en) * | 2022-09-21 | 2022-12-09 | 湘潭大学 | Denitration method for directly decomposing NO by adsorption-microwave catalysis |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658950A (en) * | 2002-06-07 | 2005-08-24 | 日本派欧尼股份株式会社 | Method for clarifying exhaust gas |
| CN1824372A (en) * | 2006-01-23 | 2006-08-30 | 华东理工大学 | Method of desulfurizing and denitrate simultaneously of exhaust gas by micro wave catalysis |
| CN101972630A (en) * | 2010-11-12 | 2011-02-16 | 丽水市禾子净化设备有限公司 | Manufacturing method of honeycomb type purification activated carbon |
-
2011
- 2011-12-30 CN CN2011104511924A patent/CN102407114A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1658950A (en) * | 2002-06-07 | 2005-08-24 | 日本派欧尼股份株式会社 | Method for clarifying exhaust gas |
| CN1824372A (en) * | 2006-01-23 | 2006-08-30 | 华东理工大学 | Method of desulfurizing and denitrate simultaneously of exhaust gas by micro wave catalysis |
| CN101972630A (en) * | 2010-11-12 | 2011-02-16 | 丽水市禾子净化设备有限公司 | Manufacturing method of honeycomb type purification activated carbon |
Non-Patent Citations (1)
| Title |
|---|
| 阳鹏飞等: "《不同方法制备的Cu /H ZSM -5催化剂上NO的催化分解反应》", 《燃料化学学报》, vol. 39, no. 2, 28 February 2011 (2011-02-28) * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097677A1 (en) * | 2011-12-30 | 2013-07-04 | 湘潭大学 | Microwave catalyst and preparation process and use thereof |
| US9168514B2 (en) | 2011-12-30 | 2015-10-27 | Xiangtan University | Microwave catalyst and preparation process and use thereof |
| CN103127950A (en) * | 2013-02-22 | 2013-06-05 | 岳阳怡天化工有限公司 | Cu-ZSM catalyst, and preparation method and application thereof |
| CN104028299A (en) * | 2014-06-19 | 2014-09-10 | 中国石油大学(北京) | Copper-based microporous composite molecular sieve-based catalyst for FCC (fluid catalytic cracking) regenerated flue gas denitration, and preparation method and application thereof |
| CN104028299B (en) * | 2014-06-19 | 2016-05-18 | 中国石油大学(北京) | The denitration of a kind of FCC regenerated flue gas is catalyst based with copper based mesoporous-microporous composite molecular sieve, preparation method and its usage |
| CN104437080A (en) * | 2014-12-29 | 2015-03-25 | 湘潭大学 | Denitration method for microwave catalytic decomposition of NO and method of preparing Cu-ZSM-11 |
| CN106582642A (en) * | 2016-12-14 | 2017-04-26 | 湘潭大学 | Novel combined catalyst and method for selective catalytic reduction of NO by using same |
| CN106582642B (en) * | 2016-12-14 | 2019-09-27 | 湘潭大学 | A kind of method of novel compositions catalyst and its Selective Catalytic Reduction of NO |
| CN107233914A (en) * | 2017-05-27 | 2017-10-10 | 清华大学 | A kind of preparation method of molecular sieve denitrating catalysts of Cu SAPO 47 and its denitration application |
| CN115445375A (en) * | 2022-09-21 | 2022-12-09 | 湘潭大学 | Denitration method for directly decomposing NO by adsorption-microwave catalysis |
| CN115445375B (en) * | 2022-09-21 | 2024-04-12 | 湘潭大学 | Method for directly decomposing NO and denitrating by adsorption-microwave catalysis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102407114A (en) | Microwave catalyst for copper molecular sieve and microwave catalytic denitration method | |
| CN102407113A (en) | Microwave catalyst and application method thereof | |
| CN104941630B (en) | Low-temperature high-activity flue gas denitration catalyst and preparation thereof | |
| CN101693162B (en) | Method for desulfurizing and denitrating boiler gas simultaneously by using active carbon under microwave radiation | |
| CN102151585B (en) | Melamine-supported denitration catalyst and preparation method thereof | |
| CN101337151A (en) | Purification method for removing nitrogen oxides in stationary source tail-gas using low-temperature plasma | |
| CN110721735B (en) | Electrostatic precipitator combined desulfurization and denitrification catalyst and manufacturing process thereof | |
| CN112657541B (en) | Preparation method of molecular sieve based low-temperature environment-friendly SCR denitration catalyst | |
| CN112619609B (en) | Adsorbent for synergistically removing sulfur and mercury and preparation method and application thereof | |
| CN104190358B (en) | NOx adsorber | |
| CN102407073B (en) | Denitration method for two-section microwave catalytic reaction bed | |
| CN106179218A (en) | A kind of sintering flue gas desulfurization agent with active carbocoal as carrier and preparation, renovation process and application | |
| CN104741143A (en) | Preparation method and application of Cu-ZSM-5 doped Zr and Sr composite catalyst | |
| CN102407071B (en) | Denitration method utilizing microwave catalytic selective reduction reaction | |
| CN104741142A (en) | Preparation method and application of Fe-ZSM-5 Zr and Sr doped compound catalyst | |
| CN202590630U (en) | Coal-fired boiler low-temperature selective catalytic reduction (SCR) fixed bed smoke denitration device | |
| CN104368331A (en) | Honeycomb type SCR denitrification catalyst end portion hardening liquid and hardening treatment method | |
| CN106362727B (en) | A kind of method and application improving ceria-based denitration catalyst catalytic performance | |
| WO2020133574A1 (en) | Method for removing, recycling, and reusing nitrogen oxide in combustion exhaust | |
| CN108404922B (en) | NO used at low temperaturexCatalyst for rapid alternate adsorption-regeneration and preparation method thereof | |
| CN113663720B (en) | Preparation method and application of nickel modified molecular sieve catalyst for regenerating rich amine | |
| KR20080011864A (en) | Catalyst composition for removing nox, manufacturing method thereof and removing process of nox using it | |
| CN103706371B (en) | A kind of containing ultralow V demercuration catalyst of Ce and preparation method thereof | |
| WO2013097677A1 (en) | Microwave catalyst and preparation process and use thereof | |
| CN106582642B (en) | A kind of method of novel compositions catalyst and its Selective Catalytic Reduction of NO |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120411 |
|
| RJ01 | Rejection of invention patent application after publication |