CN105498752A - Preparation method for manganese oxide/porous carbon catalyst used for plasma air purification - Google Patents
Preparation method for manganese oxide/porous carbon catalyst used for plasma air purification Download PDFInfo
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- CN105498752A CN105498752A CN201410500459.8A CN201410500459A CN105498752A CN 105498752 A CN105498752 A CN 105498752A CN 201410500459 A CN201410500459 A CN 201410500459A CN 105498752 A CN105498752 A CN 105498752A
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Abstract
The invention relates to a preparation method for a manganese oxide-loaded porous carbon catalyst used for plasma catalytic degradation of harmful substances in the air. The catalyst uses a porous carbon material as a carrier for manganese oxide; a manganese nitrate solution is allowed to infiltrated into the interior of porous carbon under the action of ultrasonic dispersion and capillary action after surface treatment; and then roasting is carried out so as to obtain the MnOx-loaded porous carbon catalyst material. The manganese oxide-loaded porous carbon catalyst prepared in the invention is applied in combination of plasma for catalytic degradation of harmful substances in the air and has he characteristics of a fast degradation speed, high treatment efficiency, a low by-product concentration, etc.
Description
Technical field
The present invention relates to a kind of for field of environment pollution control, the preparation method of the oxide porous Pd/carbon catalyst of Supported Manganese of nuisance in using plasma process air.
Background technology
A large amount of volatile noxious gas emissions is had in air, as benzene homologues such as benzene,toluene,xylenes in finishing and industrial production.Benzene homologues is particularly serious to the extent of injury of human body, and current benzene compounds is defined as strong carcinogen by the World Health Organization.Especially, in industrial production and process, the volatile organic waste gas pollutant of generation has the features such as discharge capacity is large, concentration is low, complicated.
The fundamental way removing organic exhaust gas adopts free of contamination technique, uses less or without harmful material, control toxic emission, recycle or harmless treatment organic exhaust gas.According to the discharging modes of various processes flow process and volatilizable organic exhaust gas, there is different treatment technologies, adopt at present extensively and study and more have absorption method, heat damage method, condensation method, absorption process etc., and develop the control technology made new advances in recent years and have biomembrance process, light decomposition method, plasma decomposition, ozone decomposed method etc.
Low temperature plasma ruling by law reason organic exhaust gas can reach good removal effect, and have the feature that technique is simple, flow process is short, operability is good compared with routine techniques, particularly in energy-conservation, have very large potentiality, range of application is also more extensive.The plasma produced in process gas discharge is made up of a large amount of active species, these active species and the ozone that produced by active specy are by gas phase organic substance decomposing, but there is oxidation incomplete sum ozone and remain the problem causing secondary pollution, too high processing cost is also the key of its application of restriction simultaneously.But in the plasma decomposition process of benzene homologues, because the stability of phenyl ring is higher, the efficiency comparison of degraded is low, and processing cost is higher.
Summary of the invention
The present invention makes in order to the technical task solved in the past, object is to provide a kind of in plasma treatment organic exhaust gas process, can catalytic decomposition pernicious gas composition and the catalyst of cost plasma resolving harmful gas low, easy to use expeditiously.
Technical scheme of the present invention is achieved in the following ways:
Technical scheme of the present invention is: using porous carbon material as the carrier of Mn oxide, manganese nitrate solution is penetrated under ultrasonic disperse and capillarity the porous charcoal after surface treatment inner, then through calcination process, load MnOx/ porous charcoal catalyst material is obtained.
Preparation method of the present invention is: after porous charcoal raw material washed with de-ionized water is clean, carry out acidification with the salpeter solution of 0.5-3mol/L, the processing time is 12-36 hour, then dries; Adopt the manganese nitrate solution of 5%-40% and process the porous charcoal equivalent impregnation 12-36 hour of drying, during dipping, one or many disperses 1-30 minute under the supersonic frequency of 20KHz-40KHz; Take out the porous charcoal of dipping, 80 DEG C of oven dry, then at 300-450 DEG C, calcine 1-3 hour, make the porous charcoal catalyst of Supported Manganese oxide.
Described porous charcoal is granular activated carbon or NACF.
The present invention compared with prior art tool has the following advantages:
1, Mn oxide/porous charcoal catalyst is effectively combined with the catalytic performance of Mn oxide the absorption property of active carbon and bigger serface, and catalytic activity is high, effectively can reduce the concentration of organic exhaust gas, finally realizes the degraded to pernicious gas.
The preparation process of 2, Mn oxide/porous charcoal catalyst is simple, and under weak ultrasonication, manganese nitrate solution is more even in the distribution of porous charcoal inside, and the catalyst cupport rate of carrier surface is higher.
3, after in Mn oxide/porous charcoal catalyst plasma degraded air, nuisance carries out catalytic reaction, the by-product concentration in tail gas is low.
Detailed description of the invention
For disclosing technical scheme of the present invention further, elaborated by specific embodiment:
Technical scheme of the present invention is: using porous carbon material as the carrier of Mn oxide, manganese nitrate solution is penetrated under ultrasonic disperse and capillarity the porous charcoal after surface treatment inner, then through calcination process, load MnOx/ porous charcoal catalyst material is obtained.
Preparation method of the present invention is: after porous charcoal raw material washed with de-ionized water is clean, carry out acidification with the salpeter solution of 0.5-3mol/L, the processing time is 12-36 hour, then dries; Adopt the manganese nitrate solution of 5%-40% and process the porous charcoal equivalent impregnation 12-36 hour of drying, during dipping, one or many disperses 1-30 minute under the supersonic frequency of 20KHz-40KHz; Take out the porous charcoal of dipping, 80 DEG C of oven dry, then at 300-450 DEG C, calcine 1-3 hour, make the porous charcoal catalyst of Supported Manganese oxide.
Example 1:
After porous charcoal raw material is clean by washed with de-ionized water, carry out acidification with the salpeter solution of 1mol/L, the processing time is 24 hours, then dries; The porous charcoal equivalent impregnation adopting the manganese nitrate solution of 10% and process to dry 24 hours, once disperses 2 minutes during dipping under the supersonic frequency of 20KHz-40KHz; Take out the porous charcoal of dipping, 80 DEG C of oven dry, then calcine 2 hours at 350 DEG C, make the porous charcoal catalyst 1# of Supported Manganese oxide.
Example 2:
After porous charcoal raw material is clean by washed with de-ionized water, carry out acidification with the salpeter solution of 1mol/L, the processing time is 24 hours, then dries; The porous charcoal equivalent impregnation adopting the manganese nitrate solution of 20% and process to dry 24 hours, once disperses 2 minutes during dipping under the supersonic frequency of 20KHz-40KHz; Take out the porous charcoal of dipping, 80 DEG C of oven dry, then calcine 2 hours at 350 DEG C, make the porous charcoal catalyst 2# of Supported Manganese oxide.
By plasma in conjunction with Mn oxide/porous charcoal catalyst to the degradation treatment of the toluene in air, obvious effect can be seen: get the exit that catalyst prepared by 5g is placed in plasma reactor, at plasma generation voltage 18kV, throughput is 500ml/min, toluene concentration is under the condition of 300mg/m3, tests.Experimental result is as shown in the table, and the porous charcoal catalyst of Supported Manganese oxide is used for the toluene in plasma-catalytic degraded air, has the features such as degradation speed is fast, treatment effeciency is high, by-product concentration is low.
Concrete effect data can from lower surface plasma in conjunction with Mn oxide/porous charcoal catalyst to imbody in the degradation experiment form of the toluene in air:
Plasma in conjunction with Mn oxide/porous charcoal catalyst to the experimental result of the degraded of the toluene in air
Claims (1)
1. the preparation method for the oxide porous Pd/carbon catalyst of Supported Manganese of nuisance in plasma catalytic degraded air, it is characterized in that comprising following content: after porous charcoal raw material washed with de-ionized water is clean, acidification is carried out with the salpeter solution of 0.5-3mol/L, processing time is 12-36 hour, then dries; Adopt the manganese nitrate solution of 5%-40% and process the porous charcoal equivalent impregnation 12-36 hour of drying, during dipping, one or many disperses 1-30 minute under the supersonic frequency of 20KHz-40KHz; Take out the porous charcoal of dipping, 80 DEG C of oven dry, and then calcine 1-3 hour at 300-450 DEG C, make the porous charcoal catalyst of Supported Manganese oxide; Described porous charcoal is granular activated carbon or NACF.
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| CN201410500459.8A CN105498752A (en) | 2014-09-23 | 2014-09-23 | Preparation method for manganese oxide/porous carbon catalyst used for plasma air purification |
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| CN201410500459.8A CN105498752A (en) | 2014-09-23 | 2014-09-23 | Preparation method for manganese oxide/porous carbon catalyst used for plasma air purification |
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| CN105498752A true CN105498752A (en) | 2016-04-20 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334549A (en) * | 2016-09-27 | 2017-01-18 | 盘锦盛世康环保科技有限公司 | Porous composite material for purifying formaldehyde and TVOCs and preparation method of porous composite material |
| CN106582260A (en) * | 2016-11-02 | 2017-04-26 | 广西大学 | Apparatus for purifying hydrophobic organic waste gas and purifying method therefor |
| CN106732542A (en) * | 2016-12-09 | 2017-05-31 | 福州大学 | One-step method prepares sheet manganese dioxide/carbon fibers at low temperature denitrating catalyst |
| CN107213884A (en) * | 2017-05-31 | 2017-09-29 | 华中科技大学 | A kind of method that utilization plasma technique strengthens metal oxide |
| CN112316679A (en) * | 2020-10-20 | 2021-02-05 | 中国科学院地球环境研究所 | Low-temperature plasma VOCs purification device and method |
| CN115254096A (en) * | 2022-08-19 | 2022-11-01 | 南华大学 | Catalyst with toluene adsorption and decomposition function and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323795A (en) * | 2008-07-15 | 2008-12-17 | 西南石油大学 | Preparation of gasoline desulphurization sorbent |
| US20100123368A1 (en) * | 2008-11-17 | 2010-05-20 | Takamichi Fujii | Film formation method, film formation device, piezoelectric film, piezoelectric device, liquid discharge device and piezoelectric ultrasonic transducer |
-
2014
- 2014-09-23 CN CN201410500459.8A patent/CN105498752A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323795A (en) * | 2008-07-15 | 2008-12-17 | 西南石油大学 | Preparation of gasoline desulphurization sorbent |
| US20100123368A1 (en) * | 2008-11-17 | 2010-05-20 | Takamichi Fujii | Film formation method, film formation device, piezoelectric film, piezoelectric device, liquid discharge device and piezoelectric ultrasonic transducer |
Non-Patent Citations (3)
| Title |
|---|
| QU YI-FAN等: "The influence of Mn species on the SO2 removal of Mn-based activated carbon catalysts", 《APPLIED SURFACE SCIENCE》 * |
| SOPHIE DELAGRANGE等: "Combination of a non-thermal plasma and a catalyst for toluene removal from air: Manganese based oxide catalysts", 《APPLIED CATALYSIS B: ENVIRONMENTAL》 * |
| 罗瑶等: "新型MnOx/CNTs催化剂低温选择性催化还原NO", 《环境工程报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334549A (en) * | 2016-09-27 | 2017-01-18 | 盘锦盛世康环保科技有限公司 | Porous composite material for purifying formaldehyde and TVOCs and preparation method of porous composite material |
| CN106334549B (en) * | 2016-09-27 | 2018-10-19 | 盘锦盛世康环保科技有限公司 | It is a kind of for the composite porous and preparation method thereof of purifying formaldehyde and TVOCs |
| CN106582260A (en) * | 2016-11-02 | 2017-04-26 | 广西大学 | Apparatus for purifying hydrophobic organic waste gas and purifying method therefor |
| CN106732542A (en) * | 2016-12-09 | 2017-05-31 | 福州大学 | One-step method prepares sheet manganese dioxide/carbon fibers at low temperature denitrating catalyst |
| CN107213884A (en) * | 2017-05-31 | 2017-09-29 | 华中科技大学 | A kind of method that utilization plasma technique strengthens metal oxide |
| CN112316679A (en) * | 2020-10-20 | 2021-02-05 | 中国科学院地球环境研究所 | Low-temperature plasma VOCs purification device and method |
| CN115254096A (en) * | 2022-08-19 | 2022-11-01 | 南华大学 | Catalyst with toluene adsorption and decomposition function and preparation method thereof |
| CN115254096B (en) * | 2022-08-19 | 2023-05-23 | 南华大学 | Catalyst with toluene adsorption and decomposition function and preparation method thereof |
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Application publication date: 20160420 |