CN103007753A - Heterogeneous Fenton reagent and preparation method and application thereof - Google Patents

Heterogeneous Fenton reagent and preparation method and application thereof Download PDF

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Publication number
CN103007753A
CN103007753A CN201210587397XA CN201210587397A CN103007753A CN 103007753 A CN103007753 A CN 103007753A CN 201210587397X A CN201210587397X A CN 201210587397XA CN 201210587397 A CN201210587397 A CN 201210587397A CN 103007753 A CN103007753 A CN 103007753A
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fenton reagent
heterogeneous fenton
catalyst
load
flue gas
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潘卫国
丁承刚
郭瑞堂
金强
于月良
郭士义
洪杰南
周曰
甄文龙
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Sec-Ihi Power Generation Environmental Protection Co Ltd
Shanghai University of Electric Power
University of Shanghai for Science and Technology
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Sec-Ihi Power Generation Environmental Protection Co Ltd
Shanghai University of Electric Power
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Abstract

The invention discloses a heterogeneous Fenton reagent and a preparation method of the heterogeneous Fenton reagent and a method for removing NO out of smoke by wet oxidization by using the heterogeneous Fenton reagent. The heterogeneous Fenton reagent is a mixed solution which comprises an H2O2 water solution and an Al2O3 loaded Fe catalyst and has a pH of 5-6, wherein the concentration of the H2O2 waters solution in the mixed solution is 0.5-1.5mol/L, and the concentration of the Al2O3 loaded Fe catalyst is 2g/L. According to the method, NO is removed out of smoke by wet oxidization by using the heterogeneous Fenton reagent; particularly, the heterogeneous Fenton reagent is added in a conventional bubble tower, NO in the smoke is oxidized into HNO3, and thus the purpose of removing NO is reached. The method for removing NO out of the smoke by wet oxidization by using the heterogeneous Fenton reagent is low in denitration cost and does not cause secondary pollution.

Description

A kind of heterogeneous Fenton reagent and its preparation method and application
Technical field
The present invention relates to a kind of heterogeneous Fenton reagent and preparation method thereof and utilize heterogeneous Fenton reagent to remove the application of NO in the flue gas at wet oxidation.
Background technology
NOx is the one of the main reasons that causes the environmental problems such as acid rain and photochemical fog.According to statistics, coal fire discharged NO XAccount for NO XTotal release over half caused great harm to human, ecological environment.Along with the day by day raising of environmental requirement, the newly-built coal-burning power plant of China has all installed denitrification apparatus additional, has implemented stricter NOx discharge standard simultaneously during " 12 ", and the NOx day by day serious with control China pollutes.
At present, the NOx control technology mainly contains two classes: a kind of is to remove in the burning, namely adopts low NOx combusting technology, reduces the NOx amount that coal combustion generates in the burner hearth; Another kind is to remove after the burning, i.e. NO_x removal from flue gas, typical selective catalytic reduction method (SCR) and SNCR method (SNCR).The general denitration efficiency of low NOx combusting technology is lower, and may cause the stove internal corrosion, slagging scorification, even reduce efficiency of combustion.And selective catalytic reduction and SNCR method, although the former removal efficiency is higher, its cost of investment is large, ammonia is easily revealed, and the catalyst cost is high, easily poisoning; Although the latter invests relatively low, its denitration efficiency is low.Therefore, inquire into new denitration technology and be still the task of top priority.
Summary of the invention
One of purpose of the present invention is to provide a kind of method of utilizing heterogeneous Fenton reagent to carry out wet denitration for the technical problem that solves above-mentioned each flue-gas denitration process existence.
Two of the object of the invention is the heterogeneous Fenton reagent that provides used in a kind of above-mentioned wet denitration.
The preparation method of a kind of heterogeneous Fenton reagent that three of purpose of the present invention is to provide above-mentioned.
Know-why of the present invention
H 2O 2With Al 2O 3The heterogeneous Fenton reagent that load Fe catalyst forms fully contacts with flue gas, with the NO oxidation absorption of indissoluble in the flue gas.The related chemical reaction of its denitrating technique technology is:
Fe in the carrier 2+Catalyzing and decomposing H 2O 2It is extremely strong to produce oxidisability
Figure 286587DEST_PATH_IMAGE002
:
Figure 201210587397X100002DEST_PATH_IMAGE004
（1）
Figure 201210587397X100002DEST_PATH_IMAGE006
（2）
Figure 201210587397X100002DEST_PATH_IMAGE008
（3）
NOx in the flue gas again by Oxidation absorbs,
Figure 201210587397X100002DEST_PATH_IMAGE010
（4）
Figure 201210587397X100002DEST_PATH_IMAGE012
（5）
Anion in the denitration waste liquid mainly is
Figure 201210587397X100002DEST_PATH_IMAGE014
This method device structure is simple, and course of reaction is easy to control, and efficient is also higher.
Technical scheme of the present invention
A kind of heterogeneous Fenton reagent is namely by H 2O 2The aqueous solution and Al 2O 3The pH that load Fe catalyst forms is 5～6 mixed solution, H in the described mixed solution 2O 2Concentration of aqueous solution is 0.5-1.5mol/L, Al 2O 3Load Fe catalyst concn is 2g/L;
Described Al 2O 3In the load Fe catalyst, calculate in mass ratio, i.e. Al 2O 3: Fe is preferably 4:1.
The preparation method of above-mentioned a kind of heterogeneous Fenton reagent comprises the steps:
(1), Al 2O 3The preparation of load Fe catalyst
At first, the Fe aqueous solution of configuration 0.05mol/L adds in the stirred reactor, passes into N 20.5h to get rid of the oxygen of dissolving, then add 100 purpose activated aluminas, regulating the pH value is 4.0, then sealing is in case block gas enters, and the control temperature is 30 ℃, and rotating speed is 200rpm stirring reaction 24h on magnetic stirring apparatus, with the reacting liquid filtering that obtains, the filter cake of gained is rear in 100 ℃ of lower baking 6h with the deionized water washing, again at 550 ℃ of lower roasting 5h, namely gets Al 2O 3Load Fe catalyst;
(2), with the Al of step (1) gained 2O 3Load Fe catalyst and concentration are the H of 0.5-1.5mol/L 2O 2The mixed solution of gained is the heterogeneous Fenton reagent that pH is 5-6 after the aqueous solution;
Described Al 2O 3Load Fe catalyst and concentration are the H of 0.5-1.5mol/L 2O 2Aqueous solution is preferably pressed Al 2O 3Load Fe catalyst: the H of 0.5-1.5mol/L 2O 2The aqueous solution is that the ratio of 1g:500ml is mixed.
The application of heterogeneous Fenton reagent in wet denitration of above-mentioned gained specifically comprises the steps:
(1), flue gas preliminary treatment
Need the flue gas of denitration to carry out preliminary treatment through electrostatic precipitator, remove wherein and process through heat exchanger behind the most solid particulate matter again, flue-gas temperature is cooled to 80～100 ℃;
(2), the denitration of flue gas
Step (1) is cooled to 80～100 ℃ flue gas and sends into the smoke-box that is formed by absorption tower upper spacer and lower clapboard through the smoke inlet at the tower body on absorption tower middle part, simultaneously, being preheating to temperature is that the absorbent entrance of 40-50 ℃ of heterogeneous Fenton reagent through the absorption tower adds in the absorption tower, flue gas in the smoke-box is uniform to each playpipe by gas distributor, each playpipe again with flue gas with the pressure injection of 6500～7500Pa in heterogeneous Fenton reagent, form bubbling area, NO in the bubbling area flue gas is absorbed by the heterogeneous Fenton reagent oxidation, finishes denitration;
(3), the demist of flue gas
Flue gas after step (2) is processed rises along tedge, when removing the demister of fog-zone, removes the droplet that carries in the flue gas, and afterwards, clean flue gas is drawn from exhanst gas outlet, enters atmosphere through chimney, finishes denitration.
Beneficial effect of the present invention
A kind of method of utilizing heterogeneous Fenton reagent to carry out wet denitration of the present invention, reaction condition is gentle, and process is easy to control, can reach the denitration efficiency of 60-70% simultaneously.
Further, the method for utilizing heterogeneous Fenton reagent to carry out wet denitration of the present invention is because in the denitration reaction process, the actual material that plays oxidation is hydroxyl radical free radical
Figure 858831DEST_PATH_IMAGE002
, its catabolite is H 2O and O 2, therefore, the method for utilizing heterogeneous Fenton reagent to carry out wet denitration of the present invention, denitrification process does not produce secondary pollution.
Further, the method of utilizing heterogeneous Fenton reagent to carry out wet denitration of the present invention, because bubble tower is adopted on the absorption tower, can guarantee that heterogeneous Fenton reagent fully contacts with flue gas, thereby reach higher denitration efficiency, in addition, the gas distributor that installs additional in the smoke-box, flue gas is evenly distributed at the tower body cross section, thus guarantee each playpipe can be equably with smoke gas jet in heterogeneous Fenton reagent.
Further, the method for utilizing heterogeneous Fenton reagent to carry out wet denitration of the present invention is because the solid in the denitration waste liquid mainly is Al 2O 3Therefore load Fe catalyst can be recycled after precipitate and separate, has therefore reduced the cost of wet denitration, and the remaining acid solution that is mainly, and can be used as the raw material of industry and recycles.
Description of drawings
Fig. 1 utilizes a kind of heterogeneous Fenton reagent of the present invention to carry out the bubble tower structural representation of denitrating flue gas, and 1 is that tower body, 2 is that upper spacer, 3 is that gas distributor, 4 is that smoke inlet, 5 is that lower clapboard, 6 is that playpipe, 7 is that exhanst gas outlet, 8 is that tedge, 9 is that absorbent entrance, 10 is that agitator, 11 is that overfall, 12 is to remove the fog-zone among the figure.
The specific embodiment
Also by reference to the accompanying drawings the present invention is further set forth below by embodiment, but do not limit the present invention.
Embodiment 1
A kind of heterogeneous Fenton reagent is namely by H 2O 2The aqueous solution and Al 2O 3The pH that load Fe catalyst forms is 5 mixed solution, H in the described mixed solution 2O 2Concentration of aqueous solution is 1.0mol/L, Al 2O 3Load Fe catalyst concn is 2g/L;
Described Al 2O 3In the load Fe catalyst, calculate in mass ratio, i.e. Al 2O 3: Fe is 4:1.
The preparation method of above-mentioned a kind of heterogeneous Fenton reagent comprises the steps:
(1), Al 2O 3The preparation of load Fe catalyst
At first, the FeSO of configuration 0.05mol/L 4Aqueous solution 1000ml adds in the stirred reactor, passes into N 20.5h to get rid of the oxygen of dissolving, then add 10g100 purpose activated alumina, be that the NaOH solution of 1mol/L is adjusted to 4.0 with the pH value with concentration, then sealing under 30 ℃, is stirred 24h with the rotating speed of 200rpm at magnetic stirring apparatus in case block gas enters, then filter, the filter cake of gained is rear in 100 ℃ of lower baking 6h with the deionized water washing, again at 550 ℃ of lower roasting 5h, namely gets Al 2O 3Load Fe catalyst;
(2), with the Al of the 1g of step (1) gained 2O 3Load Fe catalyst and 500ml concentration are the H of 0.5-1.5mol/L 2O 2To be pH be 5 heterogeneous Fenton reagent to the mixed solution of gained after the aqueous solution.
Application Example 1
Utilize the heterogeneous Fenton reagent of embodiment 1 gained to carry out wet flue gas denitration, the equipment that adopts is that the absorption tower is bubble tower, its structural representation mainly comprises tower body 1, upper spacer 2, gas distributor 3, smoke inlet 4, lower clapboard 5, playpipe 6, exhanst gas outlet 7, tedge 8, absorbent entrance 9, agitator 10, overfall 11, removes fog-zone 12 as shown in Figure 1;
Described overfall 11 is a U-shaped pipeline, is distributed in tower body 1 bottom side;
Usually, playpipe 6 submergences are 150-200mm, and the spray column liquid level is 10-12m, and are different according to circumstances, appropriately adjust.
From the flue gas that boiler is discharged, be 6785m through flue gas flow after the electrostatic precipitator 3/ h, wherein NO concentration is 1339ppm.
Flue gas enters in the tower through the smoke inlet 4 on the tower body 1 on absorption tower, through gas distributor 3, in the mode of jet flue gas is injected the absorption tower from playpipe 6, the flue gas that enters in the absorption tower reacts with form and the described heterogeneous Fenton reagent of bubbling, removes NO;
Described this heterogeneous Fenton reagent is with 67.85m 3The flow of/h constantly is transported to the absorption tower by absorbent entrance 9, and the flue gas that removes behind the NO rises along tedge 8, through remove drop wherein except the demister in the fog-zone 12 after, enter chimney, the denitration waste liquid then flows out through overfall 11 and enters wastewater treatment equipment, thereby finishes denitrification process;
Utilize moral Figure 35 0XL flue gas analyzer to measure outlet NO concentration at exhanst gas outlet 7 places, can be calculated denitration efficiency is 63.36%.
Embodiment 2
A kind of heterogeneous Fenton reagent is namely by H 2O 2The aqueous solution and Al 2O 3The pH that load Fe catalyst forms is 5 mixed solution, H in the described mixed solution 2O 2Concentration of aqueous solution is 0.5mol/L, Al 2O 3Load Fe catalyst concn is 2g/L;
Described Al 2O 3In the load Fe catalyst, calculate in mass ratio, i.e. Al 2O 3: Fe is 4:1.
The preparation method of above-mentioned a kind of heterogeneous Fenton reagent is with embodiment 1.
Utilize the heterogeneous Fenton reagent of embodiment 2 gained to carry out wet flue gas denitration, specifically with Application Example 1, its denitration efficiency is 60.95%.
Embodiment 3
A kind of heterogeneous Fenton reagent is namely by H 2O 2The aqueous solution and Al 2O 3The pH that load Fe catalyst forms is 5 mixed solution, H in the described mixed solution 2O 2Concentration of aqueous solution is 1.5mol/L, Al 2O 3Load Fe catalyst concn is 2g/L;
Described Al 2O 3In the load Fe catalyst, calculate in mass ratio, i.e. Al 2O 3: Fe is 4:1.
The preparation method of above-mentioned a kind of heterogeneous Fenton reagent is with embodiment 1.
Utilize the heterogeneous Fenton reagent of embodiment 3 gained to carry out wet flue gas denitration, specifically with Application Example 1, its denitration efficiency is 67.59%.
Foregoing only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.

Claims (6)

1. a heterogeneous Fenton reagent is characterized in that described heterogeneous Fenton reagent is by H 2O 2The aqueous solution and Al 2O 3The mixed solution that load Fe catalyst forms;
Described Al 2O 3Load Fe catalyst prepares by the following method:
At first, the FeSO of configuration 0.05mol/L 4The aqueous solution adds in the stirred reactor, passes into N 20.5h to get rid of the oxygen of dissolving, then add 100 purpose activated aluminas, regulating the pH value is 4.0, then sealing is in case block gas enters, and the control temperature is 30 ℃, and rotating speed is 200rpm stirring reaction 24h on magnetic stirring apparatus, with the reacting liquid filtering that obtains, the filter cake of gained is rear in 100 ℃ of lower baking 6h with the deionized water washing, again at 550 ℃ of lower roasting 5h, namely gets Al 2O 3Load Fe catalyst.
2. a kind of heterogeneous Fenton reagent as claimed in claim 1 is characterized in that described by H 2O 2The aqueous solution and Al 2O 3H in the mixed solution that load Fe catalyst forms 2O 2Concentration of aqueous solution is 0.5-1.5mol/L, Al 2O 3Load Fe catalyst concn is 2g/L;
Described Al 2O 3In the load Fe catalyst, calculate in mass ratio, i.e. Al 2O 3: Fe is 4:1.
3. a kind of heterogeneous Fenton reagent as claimed in claim 2 is characterized in that described by H 2O 2The aqueous solution and Al 2O 3The pH of the mixed solution that load Fe catalyst forms is 5-6.
4. such as the preparation method of claim 1,2 or 3 described a kind of heterogeneous Fenton reagent, it is characterized in that specifically comprising the steps:
(1), Al 2O 3The preparation of load Fe catalyst
At first, the FeSO of configuration 0.05mol/L 4The aqueous solution adds in the stirred reactor, passes into N 20.5h to get rid of the oxygen of dissolving, then add 100 purpose activated aluminas, regulating the pH value is 4.0, then sealing is in case block gas enters, and the control temperature is 30 ℃, and rotating speed is 200rpm stirring reaction 24h on magnetic stirring apparatus, with the reacting liquid filtering that obtains, the filter cake of gained is rear in 100 ℃ of lower baking 6h with the deionized water washing, again at 550 ℃ of lower roasting 5h, namely gets Al 2O 3Load Fe catalyst;
(2), with the Al of step (1) gained 2O 3Load Fe catalyst and concentration are the H of 0.5-1.5mol/L 2O 2The mixed solution of gained is heterogeneous Fenton reagent after the aqueous solution.
5. the preparation method of a kind of heterogeneous Fenton reagent as claimed in claim 4 is characterized in that the Al described in the step (2) 2O 3Load Fe catalyst and concentration are the H of 0.5-1.5mol/L 2O 2Aqueous solution is namely pressed Al 2O 3Load Fe catalyst: the H of 0.5-1.5mol/L 2O 2The aqueous solution is that the ratio of 1g:500ml is mixed.
6. utilize such as claim 1,2 or 3 application of described heterogeneous Fenton reagent in wet denitration, it is characterized in that specifically comprising the steps:
(1), flue gas preliminary treatment
Need the flue gas of denitration to carry out preliminary treatment through electrostatic precipitator, remove wherein and process through heat exchanger behind the most solid particulate matter again, flue-gas temperature is cooled to 80～100 ℃;
(2), the denitration of flue gas
Step (1) is cooled to 80～100 ℃ flue gas and sends into the smoke-box that is formed by absorption tower upper spacer and lower clapboard through the smoke inlet at the tower body on absorption tower middle part, simultaneously, being preheating to temperature is that the absorbent entrance of 40-50 ℃ of heterogeneous Fenton reagent through the absorption tower adds in the absorption tower, flue gas in the smoke-box is uniform to each playpipe by gas distributor, each playpipe again with flue gas with the pressure injection of 6500～7500Pa in heterogeneous Fenton reagent, form bubbling area, NO in the bubbling area flue gas is absorbed by the heterogeneous Fenton reagent oxidation, finishes denitration;
(3), the demist of flue gas
Flue gas after step (2) is processed rises along tedge, when removing the demister of fog-zone, removes the droplet that carries in the flue gas, and afterwards, clean flue gas is drawn from exhanst gas outlet, enters atmosphere through chimney, finishes denitration.
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Cited By (15)

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Publication number Priority date Publication date Assignee Title
CN103706238A (en) * 2013-12-20 2014-04-09 华中科技大学 System and method for removing SO2, NO and Hg in smoke on the basis of heterogeneous Fenton
CN105536529A (en) * 2015-12-21 2016-05-04 河南弘康环保科技有限公司 Application of Fenton catalyst in flue gas desulfurization and denitrification
CN105561769A (en) * 2014-10-17 2016-05-11 华东理工大学 Denitration device achieving denitration by using salt reinforcing hydrogen peroxide solution to oxidize NO and denitration method
CN105944655A (en) * 2016-06-14 2016-09-21 湖南农业大学 Iron and aluminum composite capable of adsorbing trivalent arsenic and application of iron and aluminum composite
CN106237789A (en) * 2015-08-31 2016-12-21 中国石油天然气股份有限公司 A kind of sulfonated tail gas sulfur trioxide absorption device and absorption process
CN106310880A (en) * 2016-10-25 2017-01-11 华东理工大学 Device and method for removing NO
CN106377987A (en) * 2016-08-31 2017-02-08 上海甘澍环境科技有限公司 Flue gas wet-process denitration device and flue gas wet-process denitration method
CN107175118A (en) * 2017-05-09 2017-09-19 华北电力大学 The preparation method of iron-based heteropoly compound and the application that NO is removed in heterogeneous Fenton-like system
CN109126431A (en) * 2018-08-03 2019-01-04 杭州电子科技大学 The device and method of liquid phase adsorption formula oxidation-reduction method denitrating flue gas
CN110124455A (en) * 2018-02-08 2019-08-16 中石化广州工程有限公司 Into formula water washing tank under a kind of methanol gas
CN110124456A (en) * 2018-02-08 2019-08-16 中石化广州工程有限公司 Into formula methanol air water cleaning of evaporator under one kind
CN111905547A (en) * 2019-05-07 2020-11-10 山东师范大学 Method for oxidizing low-concentration NO in gas by using hydrogen peroxide
CN112705027A (en) * 2020-12-10 2021-04-27 杭州电子科技大学 Heterogeneous Fenton reaction denitration device and method based on atomization and cooling
CN112957892A (en) * 2021-02-05 2021-06-15 中国华能集团清洁能源技术研究院有限公司 System and method for absorbing carbon dioxide in boiler flue gas
CN113385229A (en) * 2021-05-12 2021-09-14 上海师范大学 Gas-solid phase photo-Fenton catalyst and preparation method and application thereof

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CN101259412A (en) * 2006-11-24 2008-09-10 哈尔滨工业大学 Process for preparing Fe/inorganic carrier catalyst
CN101306322A (en) * 2008-02-22 2008-11-19 北京博奇电力科技有限公司 Integrative coordinated desulfurization, denitration, demercuration device and technique using spray bubbling method
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Cited By (19)

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CN103706238B (en) * 2013-12-20 2017-05-10 华中科技大学 System and method for removing SO2, NO and Hg in smoke on the basis of heterogeneous Fenton
CN103706238A (en) * 2013-12-20 2014-04-09 华中科技大学 System and method for removing SO2, NO and Hg in smoke on the basis of heterogeneous Fenton
CN105561769A (en) * 2014-10-17 2016-05-11 华东理工大学 Denitration device achieving denitration by using salt reinforcing hydrogen peroxide solution to oxidize NO and denitration method
CN106237789B (en) * 2015-08-31 2019-04-09 中国石油天然气股份有限公司 A kind of sulfonated tail gas sulfur trioxide absorption device and absorption process
CN106237789A (en) * 2015-08-31 2016-12-21 中国石油天然气股份有限公司 A kind of sulfonated tail gas sulfur trioxide absorption device and absorption process
CN105536529A (en) * 2015-12-21 2016-05-04 河南弘康环保科技有限公司 Application of Fenton catalyst in flue gas desulfurization and denitrification
CN105944655A (en) * 2016-06-14 2016-09-21 湖南农业大学 Iron and aluminum composite capable of adsorbing trivalent arsenic and application of iron and aluminum composite
CN106377987A (en) * 2016-08-31 2017-02-08 上海甘澍环境科技有限公司 Flue gas wet-process denitration device and flue gas wet-process denitration method
CN106310880A (en) * 2016-10-25 2017-01-11 华东理工大学 Device and method for removing NO
CN106310880B (en) * 2016-10-25 2018-12-21 华东理工大学 Remove NO device and its removal methods
CN107175118A (en) * 2017-05-09 2017-09-19 华北电力大学 The preparation method of iron-based heteropoly compound and the application that NO is removed in heterogeneous Fenton-like system
CN110124455A (en) * 2018-02-08 2019-08-16 中石化广州工程有限公司 Into formula water washing tank under a kind of methanol gas
CN110124456A (en) * 2018-02-08 2019-08-16 中石化广州工程有限公司 Into formula methanol air water cleaning of evaporator under one kind
CN109126431A (en) * 2018-08-03 2019-01-04 杭州电子科技大学 The device and method of liquid phase adsorption formula oxidation-reduction method denitrating flue gas
CN111905547A (en) * 2019-05-07 2020-11-10 山东师范大学 Method for oxidizing low-concentration NO in gas by using hydrogen peroxide
CN112705027A (en) * 2020-12-10 2021-04-27 杭州电子科技大学 Heterogeneous Fenton reaction denitration device and method based on atomization and cooling
CN112957892A (en) * 2021-02-05 2021-06-15 中国华能集团清洁能源技术研究院有限公司 System and method for absorbing carbon dioxide in boiler flue gas
CN113385229A (en) * 2021-05-12 2021-09-14 上海师范大学 Gas-solid phase photo-Fenton catalyst and preparation method and application thereof
CN113385229B (en) * 2021-05-12 2023-01-24 上海师范大学 Gas-solid phase photo-Fenton catalyst and preparation method and application thereof

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Application publication date: 20130403