CN111229009B - Method and device for improving ore pulp desulfurization reaction rate by using surfactant - Google Patents
Method and device for improving ore pulp desulfurization reaction rate by using surfactant Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a method and a device for improving the desulfurization reaction rate of ore pulp by using a surfactant, wherein the method comprises the following steps: s1, preparing phosphorite slurry with the liquid-solid ratio of 30-50%, and uniformly mixing a surfactant in the phosphorite slurry to obtain absorption slurry; and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas. The invention utilizes the phosphorite slurry mixed with the surfactant to carry out flue gas desulfurization, can reduce turbulence and resistance and reduce SO2Absorbed mass transfer resistance and enhanced ore pulp suspension property, thereby promoting the reaction and further obviously improving the desulfurization reaction rate and the desulfurization efficiency. The treatment device has the advantages of rapid reaction, automatic slag discharge function, no influence on flue gas treatment, convenient operation and high efficiency.
Description
Technical Field
The invention belongs to the field of flue gas purification, and particularly relates to a method and a device for improving the desulfurization reaction rate of ore pulp by using a surfactant.
Background
With the rapid development of economy in China, the pace of industrialization and urbanization is continuously accelerated, the energy consumption is continuously increased, the current situation that the consumption of primary performance sources such as coal, petroleum and the like is dominant is not changed, and the environment faces more serious challenges. At present, the haze weather frequently appears in large areas in China, and the main reason for the haze weather is SO2And (4) discharging. SO (SO)2Not only does it cause haze, but also readily forms acidsRain causes soil acidification, reduces crop yield, and corrodes buildings and cultural relics. Thus, reducing SO in the atmosphere2The content is the key for reducing haze and acid rain harm.
At present, the domestic and overseas flue gas desulfurization technologies mainly comprise limestone-gypsum wet desulfurization, ammonia desulfurization, sodium-alkali desulfurization, magnesium desulfurization, phosphorite slurry desulfurization and the like. The phosphorite slurry process for desulfurizing fume features that phosphorite slurry is used as absorbent, transition metal iron ions in phosphorite are used as catalyst, oxygen is used to oxidize the sulfurous acid in solution into sulfuric acid, the sulfur content in solution is increased continuously and SO in fume is absorbed2The generated sulfuric acid and phosphorite are further chemically reacted to achieve the aim of desulfurization. The existing method for desulfurizing phosphate ore pulp comprises a method for preparing a desulfurizer for phosphate ore pulp from ammonium fluoride wastewater (CN 105536492B), and specifically, ammonium fluoride wastewater and phosphate rock powder discharged from phosphorus chemical enterprises are used for preparing a desulfurization absorbent, so that low-concentration sulfur dioxide in flue gas is absorbed. The method treats waste by waste, and has the characteristics of simple process facilities, simple operation and the like. A method (CN 108105760A) for desulfurizing the tail gas phosphorus ore pulp and co-producing magnesium ammonium phosphate of a coal-fired circulating fluidized bed boiler efficiently uses the phosphorus ore pulp as a desulfurizing agent and removes magnesium element in the phosphorus ore pulp to prepare the by-product magnesium ammonium phosphate. In the existing phosphorite pulp desulfurization technology, although the methods are different, the essence of phosphorite pulp desulfurization is that sulfur dioxide in flue gas enters the pulp through gas-liquid mass transfer, is catalyzed and oxidized to generate sulfuric acid, and then reacts with active components such as calcium phosphate in mineral particles to realize desulfurization; the sulfuric acid leaching process is often limited, hindering the improvement of desulfurization efficiency. In view of the above problems, it is necessary to develop a method and a device for increasing the desulfurization reaction rate of ore pulp by using a surfactant.
Disclosure of Invention
The first purpose of the invention is to provide a method for improving the speed of the ore pulp desulfurization reaction by using a surfactant.
The second purpose of the invention is to provide a device for realizing the method for improving the speed of the pulp desulfurization reaction by using the surfactant.
The first object of the present invention is achieved by comprising the steps of:
s1, preparing phosphorite slurry with the liquid-solid ratio of 30-50%, and uniformly mixing a surfactant in the phosphorite slurry to obtain absorption slurry;
and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas.
The second purpose of the invention is realized by that the invention comprises a shell, an isolating ring, a sealing press ring, an upper fixed disk, a lower fixed disk, a driving cylinder, a discharge valve, a rotary disk driving motor, a smoke inlet pipe, a lower pulp inlet pipe and an upper pulp inlet pipe, wherein the shell is of a disc-shaped structure with a cavity inside, the center of the top of the shell is of a convex structure, the isolating ring is of a structure with a small top and a big bottom, the isolating ring is fixedly arranged in the shell, the shell is sequentially divided into a reaction chamber and a discharge chamber from the center to the edge by the isolating ring, an annular discharge opening is arranged along the outer side of the isolating ring, the sealing press ring is covered on the annular discharge opening, the driving cylinder is vertically arranged on the shell, a piston rod of the driving cylinder penetrates through the shell and extends into the discharge chamber to be fixedly connected with the top of the sealing press ring, the discharge valve is arranged at the bottom of, the upper fixed disk set firmly the top in the reacting chamber, carousel driving motor locate casing top center, carousel driving motor's power take off end is connected through the center of the carousel in pivot and the reacting chamber, the bottom surface of upper fixed disk, the higher authority of lower fixed disk and the two sides of carousel all be equipped with a plurality of slot, advance the tobacco pipe and locate reacting chamber bottom center, advance the tobacco pipe upper end and wear out down the fixed disk, advance the tobacco pipe and be equipped with down respectively all around and advance the thick liquid pipe, advance thick liquid pipe upper end down and wear out down the fixed disk, carousel driving motor be equipped with all around respectively and advance thick liquid pipe, advance thick liquid pipe lower extreme and pass casing top evagination structure, casing top evagination structure be equipped with the exhaust port.
The invention has the beneficial effects that:
1. the invention utilizes the mixture of a certain amountThe method comprises the following steps of (1) carrying out flue gas desulfurization on phosphorite slurry of a surfactant, specifically, firstly, introducing sulfur dioxide in flue gas into ore slurry through gas-liquid mass transfer, carrying out catalytic oxidation on the sulfur dioxide to obtain sulfuric acid, and further reacting with mineral particles in the ore slurry, particularly reacting with active components such as calcium phosphate and the like to generate calcium sulfate precipitate and phosphoric acid, so that the positive reaction of generating the sulfuric acid is promoted, and desulfurization is realized; the invention causes turbulent drag reduction effect and reduces mass transfer resistance due to the existence of the surfactant, thereby promoting SO2The rate of gas-liquid mass transfer reaction is such that SO2Gas enters the ore pulp quickly, and the suspension property of the ore pulp is enhanced; meanwhile, the cationic fluorocarbon surfactant can reduce the surface tension of the mineral and promote the permeation of sulfuric acid after catalytic oxidation in micropores of mineral particles, so that the reaction is promoted, and the desulfurization reaction rate and the desulfurization efficiency are improved. Compared with the traditional ore pulp desulfurization technology, the invention has stable desulfurization efficiency and high reaction speed, and can reduce the use of ore pulp;
2. the device continuously introduces the mixed flue gas obtained by mixing the dedusted flue gas and the oxygen into the reaction chamber through the flue gas inlet pipe, and the mixed flue gas and the absorption slurry are matched with the grooves on the disc surface under the rotation action of the turntable, so that the liquid flow is continuously cut by the grooves, and meanwhile, the rotational flow is generated in the grooves, the rapid reaction is realized in a very short time, and the device has the advantage of high reaction rate; in the reaction process, the device can automatically discharge slag without influencing the flue gas treatment, and has the advantages of convenient operation and high efficiency.
Drawings
FIG. 1 is a schematic view of the apparatus of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1;
FIG. 3 is a schematic top view of the internal structure of the apparatus of the present invention;
FIG. 4 is a schematic top view of the spacer ring;
FIG. 5 is a schematic structural view of the upper fixing tray;
FIG. 6 is a schematic structural view of a lower fixing tray;
in the figure: 1-shell, 2-isolating ring, 3-sealing pressure ring, 4-upper fixed disk, 5-lower fixed disk, 6-driving cylinder, 7-discharge valve, 8-rotary disk, 9-rotary disk driving motor, 10-smoke inlet pipe, 11-lower pulp inlet pipe, 12-upper pulp inlet pipe, 13-reaction chamber, 14-discharge chamber, 15-annular discharge outlet, 16-groove, 17-smoke guide plate and 18-demister.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The invention comprises the following steps:
s1, preparing phosphorite slurry with the liquid-solid ratio of 30-50%, and uniformly mixing a surfactant in the phosphorite slurry to obtain absorption slurry;
and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas.
Preferably, the surfactant in the step of S1 is one or more of an α -olefin sulfonate surfactant, an N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctylsulfonamide surfactant, a fluoro-2-hydroxyundecyldiethylhydroxy ammonium chloride surfactant, and an octadecyl trimethyl ammonium chloride surfactant.
Preferably, the addition amount of the surfactant in the step S1 is 80-120 ppm.
Preferably, O in the mixed gas in the step S22The volume fraction is 10-20%.
Preferably, the reaction in the step of S2 is kept at a constant temperature of 25 +/-5 ℃ for 120 min.
As shown in attached drawings 1-6, the device for realizing the method for improving the speed of the ore pulp desulfurization reaction by using the surfactant comprises a shell 1, an isolating ring 2, a sealing press ring 3, an upper fixed disk 4, a lower fixed disk 5, a driving cylinder 6, a discharge valve 7, a rotary disk 8, a rotary disk driving motor 9, a smoke inlet pipe 10, a lower pulp inlet pipe 11 and an upper pulp inlet pipe 12, wherein the shell 1 is of a disc-shaped structure with a cavity inside, the center of the top of the shell 1 is of a convex structure, the isolating ring 2 is of a small-top-large-bottom structure, the isolating ring 2 is fixedly arranged in the shell 1, the shell 1 is sequentially divided into a reaction chamber 13 and a discharge chamber 14 from the center to the edge by the isolating ring 2, an annular discharge port 15 is arranged on the outer side of the isolating ring 2, the sealing press ring 3 is covered on the annular discharge port 15, the driving cylinder 6 is vertically arranged on the shell 1, a piston rod of the driving, and stretch into row material chamber 14 in, with the consolidation of sealing clamping ring 3 top, row's valve 7 locate row material chamber 14's bottom, lower fixed disk 5 set firmly in the bottom of reacting chamber 13, upper fixed disk 4 set firmly the top in reacting chamber 13, carousel driving motor 9 locate 1 top center of casing, the power take off end of carousel driving motor 9 is connected through the center of carousel 8 in pivot and reacting chamber 13, the bottom surface of upper fixed disk 4, the higher authority of lower fixed disk 5 and the two sides of carousel 8 all be equipped with a plurality of slot 16, advance tobacco pipe 10 locate reacting chamber 13 bottom center, advance tobacco pipe 10 upper end and wear out lower fixed disk 5, advance tobacco pipe 10 all around be equipped with down into thick liquid pipe 11 respectively, advance thick liquid pipe 11 upper end and wear out lower fixed disk 5 down, carousel driving motor 9 all around be equipped with go up thick liquid pipe 12 respectively, go up thick liquid pipe 12 lower extreme and pass the evagination structure in casing 1 top, the convex structure at the top of the shell 1 is provided with a smoke outlet.
Preferably, the bottom surface of the upper fixed disk 4, the upper surface of the lower fixed disk 5 and both surfaces of the rotating disk 8 are provided with a plurality of layers of radially arranged grooves 16 from the center of the disk surface to the edge of the disk surface.
Preferably, a smoke guide plate 17 is arranged between the smoke outlet and the turntable driving motor 9.
Preferably, the smoke outlet is provided with a demister 18.
Preferably, a liquid level sensor is arranged on the inner side of the convex structure at the top of the shell 1.
Preferably, the smoke inlet pipe 10, the lower slurry inlet pipe 11 and the upper slurry inlet pipe 12 are all provided with a one-way valve.
The working principle and the working process of the device are as follows: firstly, absorbing slurry obtained by uniformly mixing phosphate pulp and a surfactant enters a reaction chamber 13 from a lower slurry inlet pipe 11 and an upper slurry inlet pipe 12 simultaneously, and the absorbing slurry is continuously filled into the reaction chamber 13; then starting a turntable driving motor 9 to drive a turntable 8 to rotate, simultaneously continuously introducing mixed flue gas obtained by mixing dedusted flue gas and oxygen into a reaction chamber 13 through a flue gas inlet pipe 10, and matching the mixed flue gas and absorption slurry with grooves on the disc surface under the rotation action of the turntable 8 to enable liquid flow to be continuously cut by the grooves, and simultaneously generating rotational flow in the grooves to rapidly react in a very short time; the flue gas flows from the lower part of the rotary disc 8 to the edge of the rotary disc 8 and crosses the edge of the rotary disc 8, when the flue gas passes through the upper part of the rotary disc 8, the flue gas reacts with the absorption slurry on the rotary disc 8 and the absorption slurry continuously fed into the upper slurry feeding pipe 12 again, so that the treated flue gas reaches the flue gas emission standard, and the flue gas is discharged from a smoke discharge port; in the reaction process, the generated solid matters and the solid matters in the absorbed ore pulp move to the edge of the reaction chamber 13 under the action of centrifugal force generated by the rotation of the rotary disc 8; starting the driving cylinder 6 after reacting for a period of time, lifting the sealing pressure ring 3 to open the annular discharge opening 15, and discharging the solid matters together with part of liquid from the annular discharge opening 15, the discharge chamber 14 and the discharge valve 7; then starting the driving cylinder 6, descending the sealing pressure ring 3 to press and seal the annular discharge port 15, and simultaneously increasing the inlet flow rate of the absorption slurry by the lower slurry inlet pipe 11 and the upper slurry inlet pipe 12 to enable the liquid in the reaction chamber 13 to quickly reach the set liquid level; then the liquid flow rate returns to the initial flow rate, and the liquid flow rate is increased after the next discharge; the above process is repeated continuously, and the flue gas is desulfurized continuously by absorbing the slurry.
The present invention will be further described with reference to examples 1 to 7.
Example 1
S1, preparing phosphorus ore pulp with the liquid-solid ratio of 30%, and uniformly mixing the phosphorus ore pulp with alpha-alkenyl sulfonate surfactant to obtain absorption slurry;
and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas.
Example 2
S1, preparing phosphorite slurry with the liquid-solid ratio of 50%, and uniformly mixing the phosphorite slurry with the N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctyl sulfonamide surfactant to obtain absorption slurry;
and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas.
Example 3
S1, preparing phosphorite slurry with liquid-solid ratio of 40%, and uniformly mixing a fluoro-2-hydroxyundecyl diethylhydroxy ammonium chloride surfactant in the phosphorite slurry to obtain absorption slurry;
and S2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas.
Example 4
S1, preparing phosphorus ore pulp with the liquid-solid ratio of 30%, and uniformly mixing an octadecyl trimethyl ammonium chloride surfactant in the phosphorus ore pulp to obtain absorption slurry, wherein the dosage of the surfactant is 80 ppm;
s2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas; wherein, O in the mixed gas2The volume fraction was 10%.
Example 5
S1, preparing phosphorite slurry with liquid-solid ratio of 50%, and uniformly mixing alpha-olefin sulfonate surfactant and N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctyl sulfonamide surfactant in a weight ratio of 1: 1, obtaining absorption slurry, wherein the adding amount of a surfactant is 120 ppm;
s2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas; wherein, O in the mixed gas2The volume fraction was 20%.
Example 6
S1, preparing phosphorite slurry with liquid-solid ratio of 40%, and uniformly mixing alpha-olefin sulfonate surfactant, N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctyl sulfonamide surfactant and fluoro-2-hydroxyundecyl diethylhydroxy ammonium chloride surfactant in a weight ratio of 1: 1: 1, obtaining absorption slurry, wherein the adding amount of the cationic fluorocarbon surfactant is 100 ppm;
s2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas; wherein, O in the mixed gas2The volume fraction was 15%.
Example 7
S1, preparing phosphorite slurry with liquid-solid ratio of 40%, and uniformly mixing alpha-olefin sulfonate surfactant, N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctyl sulfonamide surfactant, fluoro-2-hydroxyundecyl diethylhydroxy ammonium chloride surfactant and octadecyl trimethyl ammonium chloride surfactant in a weight ratio of 1: 1: 1: 1, obtaining absorption slurry, wherein the adding amount of the cationic fluorocarbon surfactant is 110 ppm;
s2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas; wherein, O in the mixed gas2The volume fraction was 15%.
Claims (9)
1. A method for improving the desulfurization reaction rate of ore pulp by using a surfactant is characterized by comprising the following steps:
s1, preparing phosphorite slurry with the liquid-solid ratio of 30-50%, and uniformly mixing a surfactant in the phosphorite slurry to obtain absorption slurry;
s2, uniformly mixing the flue gas to be desulfurized with oxygen, fully mixing the mixed gas with the absorption slurry obtained in the step S1 for reaction, and discharging the treated flue gas;
wherein, the S2 step adopts following device to realize, the device includes casing (1), spacer ring (2), seals clamping ring (3), upper fixed disk (4), lower fixed disk (5), drive cylinder (6), blow-off valve (7), carousel (8), carousel driving motor (9), advances tobacco pipe (10), advances thick liquid pipe (11) down, goes up thick liquid pipe (12), casing (1) be the disc structure of cavity for inside, casing (1) top center is evagination structure, spacer ring (2) be big-end-down structure, spacer ring (2) set firmly in casing (1), spacer ring (2) divide into reaction chamber (13), row discharge chamber (14) from the center to the edge in proper order casing (1), seted up annular mouth (15) along spacer ring (2) outside, clamping ring seal (3) lid locate annular bin outlet (15), drive actuating cylinder (6) vertical setting on casing (1), the piston rod of drive actuating cylinder (6) passes casing (1) to stretch into in row material chamber (14), with seal clamping ring (3) top consolidation, row material valve (7) locate the bottom of arranging material chamber (14), lower fixed disk (5) set firmly the bottom in reaction chamber (13), last fixed disk (4) set firmly the top in reaction chamber (13), carousel driving motor (9) locate casing (1) top center, the power take off end of carousel driving motor (9) is connected through the center of carousel (8) in pivot and reaction chamber (13), the bottom surface of last fixed disk (4), the higher authority of lower fixed disk (5) and the two sides of carousel (8) all be equipped with a plurality of slot (16), advance tobacco pipe (10) locate reaction chamber (13) bottom center, advance tobacco pipe (10) upper end and wear out lower fixed disk (5), advance tobacco pipe (10) be equipped with down respectively all around and advance thick liquid pipe (11), advance thick liquid pipe (11) upper end down and wear out lower fixed disk (5), carousel driving motor (9) be equipped with all around and go up thick liquid pipe (12) respectively, go up thick liquid pipe (12) lower extreme and pass casing (1) top evagination structure, casing (1) top evagination structure be equipped with the mouth of discharging fume.
2. The method for improving the desulfurization reaction rate of ore pulp by using the surfactant according to claim 1, wherein the surfactant in the step of S1 is one or more of alpha-olefin sulfonate surfactant, N- [ 3-polyether-3- (dimethylamino) -propyl ] perfluorooctyl sulfonamide surfactant, fluoro-2-hydroxyundecyldiethylhydroxy ammonium chloride surfactant and octadecyl trimethyl ammonium chloride surfactant.
3. The method for improving the desulfurization reaction rate of ore pulp by using the surfactant according to claim 1, wherein the surfactant is added in an amount of 80-120 ppm in the step of S1.
4. The method for improving the reaction rate of ore pulp desulfurization by using surfactant according to claim 1, characterized in that O in the mixed gas in the step of S22The volume fraction is 10-20%.
5. The method for improving the reaction rate of ore pulp desulfurization by using the surfactant according to claim 1, characterized in that the bottom surface of the upper fixed disk (4), the upper surface of the lower fixed disk (5) and both surfaces of the rotating disk (8) are provided with a plurality of layers of grooves (16) which are radially arranged from the center of the disk surface to the edge of the disk surface.
6. The method for improving the speed of desulfurization reaction of ore pulp by using surfactant according to claim 1, characterized in that a smoke guide plate (17) is arranged between the smoke outlet and the rotary disc driving motor (9).
7. The method for improving the speed of desulfurization reaction of mineral slurry by using surfactant according to claim 1, characterized in that the smoke exhaust is provided with a demister (18).
8. The method for improving the reaction rate of ore pulp desulfurization by using the surfactant according to claim 1, characterized in that a liquid level sensor is arranged on the inner side of the convex structure at the top of the casing (1).
9. The method for improving the desulfurization reaction rate of ore pulp by using the surfactant as claimed in claim 1, wherein the smoke inlet pipe (10), the lower pulp inlet pipe (11) and the upper pulp inlet pipe (12) are all provided with one-way valves.
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Citations (3)
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|---|---|---|---|---|
| US5931579A (en) * | 1996-09-20 | 1999-08-03 | Bayer Aktiengesellschaft | Mixer-reactor and process for containing nozzles for carrying out the phosgenation of primary amines |
| CN103263842A (en) * | 2013-06-18 | 2013-08-28 | 上海电力学院 | Flue gas desulfurization synergist in wet desulfurization system as well as preparation method and application thereof |
| CN203447973U (en) * | 2013-09-07 | 2014-02-26 | 中北大学 | Device for removing hydrogen sulfide in industrial gas |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52111880A (en) * | 1976-03-17 | 1977-09-19 | Mitsubishi Kakoki Kk | Method of washing dust away by liquid containing surfactant |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5931579A (en) * | 1996-09-20 | 1999-08-03 | Bayer Aktiengesellschaft | Mixer-reactor and process for containing nozzles for carrying out the phosgenation of primary amines |
| CN103263842A (en) * | 2013-06-18 | 2013-08-28 | 上海电力学院 | Flue gas desulfurization synergist in wet desulfurization system as well as preparation method and application thereof |
| CN203447973U (en) * | 2013-09-07 | 2014-02-26 | 中北大学 | Device for removing hydrogen sulfide in industrial gas |
Non-Patent Citations (1)
| Title |
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| 低浓度SO2磷矿浆液相催化氧化净化研究;刘卉卉;《中国优秀硕博士学位论文全文数据库（硕士）工程科技1辑》;20051215(第八期);B027-120 * |
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Inventor after: Tian Senlin Inventor after: Yin Feng Inventor after: Zhao Qun Inventor after: Li Yingjie Inventor after: Hu Xuewei Inventor after: Huang Jianhong Inventor after: Ning Ping Inventor before: Tian Senlin Inventor before: Yin Feng Inventor before: Zhao Qun Inventor before: Li Yingjie Inventor before: Hu Xuewei Inventor before: Huang Jianhong |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |