CN103551164B - Nitrogenous sulphur oxygen helerocyclics is had to eelctro-catalyst and the preparation method of efficient catalytic degradation function - Google Patents
Nitrogenous sulphur oxygen helerocyclics is had to eelctro-catalyst and the preparation method of efficient catalytic degradation function Download PDFInfo
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Abstract
The invention discloses eelctro-catalyst and the preparation method nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.By AgNO
3be added in isopropyl alcohol and obtain solution A, by the Al after process
2o
3be added in solution A, filter and obtain particle B and microemulsion X, obtain particle D with after ethanol washing; Particle D is added to after filtering in X and obtains particle F.Utilize Ce (NO
3)
2, CoCl
2, NiCl
2preparation solution B
1, B
2, B
3, B
4, B
5, C, D, E, F.By particle F successively through solution B
1, B
2, B
3, B
4, B
5particle I is obtained after process.Particle I is added in solution C, washs also drying with ethanol after filtration and obtain particle K.Particle K is added in solution D, washs also drying with ethanol after filtration and obtain particle M.M is added in solution E, washs also drying with ethanol after filtration and obtain particle O.Particle O is added in solution F, with ethanol washing after filtration, dry and under 550 DEG C of conditions roasting 4h, namely obtain the eelctro-catalyst nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.
Description
Technical field
The invention belongs to the chemically modified electrode technical field of By Electrocatalytic Oxidation process waste water, particularly a kind of eelctro-catalyst and preparation method nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.
Background technology
Electro-catalytic oxidation technology carrys out the organic pollution in degrading waste water by the active group producing the strong oxidizing properties such as hydroxyl radical free radical, in process high concentration, bio-refractory waste water aspect has non-secondary pollution, cost is low, applicability is strong, efficiency high, wherein three-dimensional electro-catalytic oxidation technology, by adding the granule electrode with catalytic activity between the anode and negative electrode of two-dimensional electrode, make the granular electrode surface of filling charged by certain mode, its effective area improving two-dimensional electrode is little, mass transfer effect is poor, the defects such as current efficiency is low, be applicable to the waste water of various concentration, even if the waste water very low to pollutant levels also has good treatment effect, it is a kind of catalytic oxidation water technology that research is more at present.Based on Three-dimensional Electrode Method is applied to wastewater treatment, and its treatment effect is not only closely related with main electrode performance, and has much relations with the performance of granule electrode, and the catalytic performance therefore how improving granule electrode becomes the focus of Recent study.
Conventional granule electrode material mainly contains metallic conductor, metal oxide, the glass marble being coated with metal level or baton round, graphite particle, active oxidation aluminum particulate, carbon fibre material and activated carbon granule etc.The resistance of traditional electrode is comparatively large, conductance is low is make it current efficiency is low in the treatment of waste water, stability is inadequate, the life-span is short, electrode material cost is higher, and technology for preparing electrode is complicated, limit the development of granule electrode material, so the research of novel granule electrode material also needs further reinforcement.Adopt dipping-thermal decomposition method to prepare support type granule electrode to be in recent years subject to increasing scholar and to pay attention to, but also exist and reuse the shortcomings such as weak effect, electrode efficiency are low, also lack the research of granule electrode preparation technology aspect at present.
Summary of the invention
The object of this invention is to provide a kind of eelctro-catalyst and the preparation method nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function, described eelctro-catalyst is the loaded Ag Ni doped O-CeO containing CoO intermediate layer
2activated alumina granule electrode.The concrete steps of its preparation method are as follows:
(1) by 300g particle diameter be the γ-A1 of 3-5mm
2o
3ball 500ml deionized water washing, repeated washing 3 times, then puts into 200ml absolute ethyl alcohol and soaks 10h, and after 500ml washed with de-ionized water 1 time, dry 10h under 80 DEG C of conditions, obtains particulate matter A;
(2) be the AgNO of 0.5mol/L by 50ml concentration
3add in 150ml isopropyl alcohol, obtain solution A;
(3) the particulate matter A that step (1) obtains is added in the solution A that step (2) obtains, and 3h is shaken in shaking table, filtration obtains particulate matter B and microemulsion X, with the ethanol washing granule substance B that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter C;
(4) the particulate matter C that step (3) obtains is placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter D;
(5) the particulate matter D that step (4) obtains is added in the microemulsion X that step (3) obtains, and 3h is shaken in shaking table, cross and filter liquid and obtain particulate matter E, with the ethanol washing granule material E that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, is then placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter F;
(6) by 10ml concentration be the Ce (NO of 0.5mol/L
3)
2solution and 100ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 10ml concentration is 0.5mol/L
2solution, is divided into equivalent 5 parts, obtains solution B after shaking up
1, solution B
2, solution B
3, solution B
4, solution B
5;
(7) the particulate matter F that step (5) obtains is added the solution B that step (6) obtains
1in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G1 excessively, is the ethanol washing granule material G1 of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter H1;
(8) by particulate matter H that step (7) obtains
1add in the solution B 2 that step (6) obtains, and shake 3h in shaking table, cross and filter liquid and obtain particulate matter G2, with the ethanol washing granule material G2 that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
2;
(9) by particulate matter H that step (8) obtains
2add the solution B that step (6) obtains
3in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G3 excessively, and be the ethanol washing granule material G3 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
3;
(10) by particulate matter H that step (9) obtains
3add the solution B that step (6) obtains
4in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G4 excessively, and be the ethanol washing granule material G4 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
4;
(11) by particulate matter H that step (10) obtains
4add the solution B that step (6) obtains
5in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G5 excessively, and be the ethanol washing granule material G5 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
5; By H
5be placed in Muffle furnace roasting 4h under 550 DEG C of conditions, obtain particulate matter I;
(12) by 20ml concentration be the Ce (NO of 0.5mol/L
3)
2solution and 80ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 20ml concentration is 0.5mol/L
2solution, obtains solution C;
(13) the particulate matter I that step (11) obtains is added in the solution C that step (12) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter J, is the ethanol washing granule material J of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter K;
(14) by 40ml concentration be the Ce (NO of 0.5mol/L
3)
2solution and 40ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 40ml concentration is 0.5mol/L
2solution, obtains solution D;
(15) the particulate matter K that step (13) obtains is added in the solution D that step (14) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter L, is the ethanol washing granule material L of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter M;
(16) by 45ml concentration be the Ce (NO of 0.5mol/L
3)
2solution and 15ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 60ml concentration is 0.5mol/L
2solution, obtains solution E;
(17) the particulate matter M that step (15) obtains is added in the solution E that step (16) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter N, is the ethanol washing granule material N of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter O;
(18) by 15ml concentration be the Ce (NO of 0.5mol/L
3)
2solution and 5ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 100ml concentration is 0.5mol/L
2solution, obtains solution F;
(19) the particulate matter O that step (17) obtains is added in the solution F that step (18) obtains, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter P, with the ethanol washing granule Substance P that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtain particulate matter Q, Q is placed in Muffle furnace roasting 4h under 550 DEG C of conditions, the particulate matter obtained is the eelctro-catalyst nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.
The invention has the beneficial effects as follows, obtained has the features such as current efficiency is high, stability is strong, electrode life is long to the eelctro-catalyst that nitrogenous sulphur oxygen helerocyclics has efficient catalytic degradation function.
Detailed description of the invention
The invention provides a kind of eelctro-catalyst and the preparation method nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function,
Illustrate below by an example and in fact execute process.
Embodiment 1.
Be the γ-Al of 3-5mm by 300g particle diameter
2o
3ball 500ml deionized water washing, repeated washing 3 times, then puts into 200ml absolute ethyl alcohol and soaks 10h, and after 500ml washed with de-ionized water 1 time, dry 10h under 80 DEG C of conditions, obtains particulate matter A.
Be the AgNO of 0.5mol/L by 50ml concentration
3add in 150ml isopropyl alcohol, obtain solution A.Particulate matter A is joined in solution A, and shake 3h in shaking table, filter and obtain particulate matter B and microemulsion X, with the ethanol washing granule substance B that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter C; Particulate matter C is placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter D; Particulate matter D is joined in microemulsion X, and 3h is shaken in shaking table, cross and filter liquid and obtain particulate matter E, with the ethanol washing E that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, is then placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter F.
Be the Ce (NO of 0.5mol/L by 10ml concentration
3)
2solution and 100ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 10ml concentration is 0.5mol/L
2solution, is divided into equivalent 5 parts, obtains solution B after shaking up
1, solution B
2, solution B
3, solution B
4, solution B
5;
Particulate matter F is joined solution B
1in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G1 excessively, and be the ethanol washing granule material G1 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
1; By particulate matter H
1join solution B
2in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G2 excessively, and be the ethanol washing granule material G2 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
2; By particulate matter H
2join solution B
3in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G3 excessively, and be the ethanol washing granule material G3 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
3; By particulate matter H
3join solution B
4in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G4 excessively, and be the ethanol washing granule material G4 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
4; By particulate matter H
4join solution B
5in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G5 excessively, and be the ethanol washing granule material G5 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
5; By H
5be placed in Muffle furnace roasting 4h under 550 DEG C of conditions, obtain particulate matter I.
Be the Ce (NO of 0.5mol/L by 20ml concentration
3)
2solution and 80ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 20ml concentration is 0.5mol/L
2solution, obtains solution C.
Particulate matter I is joined in solution C, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter J, be the ethanol washing granule material J of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter K.
Be the Ce (NO of 0.5mol/L by 40ml concentration
3)
2solution and 40ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 40ml concentration is 0.5mol/L
2solution, obtains solution D.
Particulate matter K is joined in solution D, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter L, be the ethanol washing granule material L of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter M.
Be the Ce (NO of 0.5mol/L by 45ml concentration
3)
2solution and 15ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 60ml concentration is 0.5mol/L
2solution, obtains solution E.
Particulate matter M is joined in solution E, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter N, be the ethanol washing granule material N of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter O.
Be the Ce (NO of 0.5mol/L by 15ml concentration
3)
2solution and 5ml concentration are the CoCl of 0.5mol/L
2solution joins in 120ml isopropyl alcohol and 5ml concentrated hydrochloric acid, and then adds the NiCl that 100ml concentration is 0.5mol/L
2solution, obtains solution F.
Particulate matter O is joined in solution F, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter P, with the ethanol washing granule Substance P that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtain particulate matter Q, Q is placed in Muffle furnace roasting 4h under 550 DEG C of conditions, the particulate matter obtained is the eelctro-catalyst nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.
Here be use the inventive method to obtain to coal chemical industrial waste water, Degrading experiment has been carried out to the eelctro-catalyst that nitrogenous sulphur oxygen helerocyclics has an efficient catalytic degradation function in 3 D electrode reactor, further illustrate the present invention.
What the inventive method obtained is seated in 3 D electrode reactor to the eelctro-catalyst that nitrogenous sulphur oxygen helerocyclics has efficient catalytic degradation function, Degrading experiment has been carried out to coal chemical industrial waste water, result shows that this electrode can COD efficiently in Treatment of Wastewater in Coking, when influent COD is 512mg/L, the obtained eelctro-catalyst having an efficient catalytic degradation function to nitrogenous sulphur oxygen helerocyclics is the 3rd pole in the process of the present invention, be 4.5 at pH, voltage is 12V, processing time is under 60min condition, COD after process in water outlet is reduced to 43mg/L, treatment effeciency reaches 91.60%.
Claims (1)
1. nitrogenous sulphur oxygen helerocyclics is had to a preparation method for the eelctro-catalyst of efficient catalytic degradation function, it is characterized in that, the concrete steps of the method are as follows:
(1) by 300g particle diameter be the γ-Al of 3-5mm
2o
3ball 500mL deionized water washing, repeated washing 3 times, then puts into 200mL absolute ethyl alcohol and soaks 10h, and after 500mL washed with de-ionized water 1 time, dry 10h under 80 DEG C of conditions, obtains particulate matter A;
(2) be the AgNO of 0.5mol/L by 50mL concentration
3add in 150mL isopropyl alcohol, obtain solution A;
(3) the particulate matter A that step (1) obtains is added in the solution A that step (2) obtains, and 3h is shaken in shaking table, filtration obtains particulate matter B and microemulsion X, with the ethanol washing granule substance B that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter C;
(4) the particulate matter C that step (3) obtains is placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter D;
(5) the particulate matter D that step (4) obtains is added in the microemulsion X that step (3) obtains, and 3h is shaken in shaking table, cross and filter liquid and obtain particulate matter E, with the ethanol washing granule material E that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, is then placed in Muffle furnace roasting 4h under 500 DEG C of conditions, obtains particulate matter F;
(6) by 10mL concentration be the Ce (NO of 0.5mol/L
3)
2solution and 100mL concentration are the CoCl of 0.5mol/L
2solution joins in 120mL isopropyl alcohol and 5mL concentrated hydrochloric acid, and then adds the NiCl that 10mL concentration is 0.5mol/L
2solution, is divided into equivalent 5 parts, obtains solution B after shaking up
1, solution B
2, solution B
3, solution B
4, solution B
5;
(7) the particulate matter F that step (5) obtains is added the solution B that step (6) obtains
1in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G1 excessively, and be the ethanol washing granule material G1 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
1;
(8) by particulate matter H that step (7) obtains
1add the solution B that step (6) obtains
2in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G2 excessively, and be the ethanol washing granule material G2 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
2;
(9) by particulate matter H that step (8) obtains
2add the solution B that step (6) obtains
3in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G3 excessively, and be the ethanol washing granule material G3 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
3;
(10) by particulate matter H that step (9) obtains
3add the solution B that step (6) obtains
4in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G4 excessively, and be the ethanol washing granule material G4 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
4;
(11) by particulate matter H that step (10) obtains
4add the solution B that step (6) obtains
5in, and 3h is shaken in shaking table, filtering liquid obtains particulate matter G5 excessively, and be the ethanol washing granule material G5 of 95% by 100mL mass concentration, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtains particulate matter H
5; By H
5be placed in Muffle furnace roasting 4h under 550 DEG C of conditions, obtain particulate matter I;
(12) by 20mL concentration be the Ce (NO of 0.5mol/L
3)
2solution and 80mL concentration are the CoCl of 0.5mol/L
2solution joins in 120mL isopropyl alcohol and 5mL concentrated hydrochloric acid, and then adds the NiCl that 20mL concentration is 0.5mol/L
2solution, obtains solution C;
(13) the particulate matter I that step (11) obtains is added in the solution C that step (12) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter J, is the ethanol washing granule material J of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter K;
(14) by 40mL concentration be the Ce (NO of 0.5mol/L
3)
2solution and 40mL concentration are the CoCl of 0.5mol/L
2solution joins in 120mL isopropyl alcohol and 5mL concentrated hydrochloric acid, and then adds the NiCl that 40mL concentration is 0.5mol/L
2solution, obtains solution D;
(15) the particulate matter K that step (13) obtains is added in the solution D that step (14) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter L, is the ethanol washing granule material L of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter M;
(16) by 45mL concentration be the Ce (NO of 0.5mol/L
3)
2solution and 15mL concentration are the CoCl of 0.5mol/L
2solution joins in 120mL isopropyl alcohol and 5mL concentrated hydrochloric acid, and then adds the NiCl that 60mL concentration is 0.5mol/L
2solution, obtains solution E;
(17) the particulate matter M that step (15) obtains is added in the solution E that step (16) obtains, and shake 3h in shaking table; Crossing and filter liquid and obtain particulate matter N, is the ethanol washing granule material N of 95% by 100mL mass concentration, repeated washing 2 times, and then dry 10h under 80 DEG C of conditions, obtains particulate matter O;
(18) by 15mL concentration be the Ce (NO of 0.5mol/L
3)
2solution and 5mL concentration are the CoCl of 0.5mol/L
2solution joins in 120mL isopropyl alcohol and 5mL concentrated hydrochloric acid, and then adds the NiCl that 100mL concentration is 0.5mol/L
2solution, obtains solution F;
(19) the particulate matter O that step (17) obtains is added in the solution F that step (18) obtains, and shake 3h in shaking table; Cross and filter liquid and obtain particulate matter P, with the ethanol washing granule Substance P that 100mL mass concentration is 95%, repeated washing 2 times, then dry 10h under 80 DEG C of conditions, obtain particulate matter Q, Q is placed in Muffle furnace roasting 4h under 550 DEG C of conditions, the particulate matter obtained is the eelctro-catalyst nitrogenous sulphur oxygen helerocyclics to efficient catalytic degradation function.
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| CN106495284A (en) * | 2016-11-21 | 2017-03-15 | 北京益清源环保科技有限公司 | There is electro-catalysis to remove modified zeolite granule electrode and the preparation method of Nitrobenzol function |
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|---|---|---|---|---|
| CN1593752A (en) * | 2004-07-01 | 2005-03-16 | 国电热工研究院 | Catalyst for generating station fume SCR denitration and preparation method thereof |
| EP1736232A1 (en) * | 2004-02-27 | 2006-12-27 | Tokyo Roki Co. Ltd. | Catalyst system for removing nitrogen oxide and method for removing nitrogen oxide |
| CN101327968A (en) * | 2008-07-08 | 2008-12-24 | 广东工业大学 | Photoelectric catalysis degrading organic reactor with swivel disc loaded with catalyst and degrading method |
| CN102764629A (en) * | 2012-08-17 | 2012-11-07 | 太原理工大学 | Method for preparing absorbing agent for medium-temperature gas desulfurization |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1736232A1 (en) * | 2004-02-27 | 2006-12-27 | Tokyo Roki Co. Ltd. | Catalyst system for removing nitrogen oxide and method for removing nitrogen oxide |
| CN1593752A (en) * | 2004-07-01 | 2005-03-16 | 国电热工研究院 | Catalyst for generating station fume SCR denitration and preparation method thereof |
| CN101327968A (en) * | 2008-07-08 | 2008-12-24 | 广东工业大学 | Photoelectric catalysis degrading organic reactor with swivel disc loaded with catalyst and degrading method |
| CN102764629A (en) * | 2012-08-17 | 2012-11-07 | 太原理工大学 | Method for preparing absorbing agent for medium-temperature gas desulfurization |
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