CN108722416B - Photo-thermal synergistic catalyst and conversion recovery device using same - Google Patents
Photo-thermal synergistic catalyst and conversion recovery device using same Download PDFInfo
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- CN108722416B CN108722416B CN201810915878.6A CN201810915878A CN108722416B CN 108722416 B CN108722416 B CN 108722416B CN 201810915878 A CN201810915878 A CN 201810915878A CN 108722416 B CN108722416 B CN 108722416B
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- 239000003054 catalyst Substances 0.000 title claims abstract description 73
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 28
- 230000002195 synergetic effect Effects 0.000 title claims abstract description 26
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000000843 powder Substances 0.000 claims abstract description 18
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 12
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 8
- QGUAJWGNOXCYJF-UHFFFAOYSA-N cobalt dinitrate hexahydrate Chemical compound O.O.O.O.O.O.[Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O QGUAJWGNOXCYJF-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000001027 hydrothermal synthesis Methods 0.000 claims abstract description 5
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 100
- 238000003860 storage Methods 0.000 claims description 37
- 238000005273 aeration Methods 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 230000005587 bubbling Effects 0.000 claims description 11
- 239000010453 quartz Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 3
- 229910052724 xenon Inorganic materials 0.000 claims description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 claims description 3
- UFMZWBIQTDUYBN-UHFFFAOYSA-N cobalt dinitrate Chemical compound [Co+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O UFMZWBIQTDUYBN-UHFFFAOYSA-N 0.000 claims description 2
- 229910001981 cobalt nitrate Inorganic materials 0.000 claims description 2
- 230000002153 concerted effect Effects 0.000 claims description 2
- 125000004122 cyclic group Chemical group 0.000 claims 1
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract description 26
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 abstract description 18
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract description 13
- 235000019341 magnesium sulphate Nutrition 0.000 abstract description 13
- 230000003647 oxidation Effects 0.000 abstract description 6
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 238000003911 water pollution Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003426 co-catalyst Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/74—Iron group metals
- B01J23/75—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/40—Magnesium sulfates
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a photothermal synergistic catalyst and a conversion recovery device applying the photothermal synergistic catalyst, which comprises the steps of dissolving cobalt nitrate hexahydrate in an isopropanol solution, adding 0.9g of cobalt nitrate hexahydrate in every 100ml of isopropanol, continuously stirring until the cobalt nitrate hexahydrate is completely dissolved, adding 0.2ml of acetone and 6ml of butyl titanate into the obtained solution, continuously stirring for about 5min, then carrying out hydrothermal synthesis at 95-105 ℃ for 3-4 h, curing into powder, drying into granular spheres, grinding the obtained granular spheres into powder, roasting at 400 ℃ for 1-2 h, and finally preparing into a catalyst plate with through holes. The photo-thermal synergistic catalyst has the advantages of simple preparation process, convenient operation, large yield and low price; the conversion recovery device is compact in structure, the oxidation rate can be improved through the photo-thermal synergistic catalyst, the magnesium sulfite is accelerated to be catalyzed and converted into magnesium sulfate, the reaction rate is improved through installing a visible light source, the utilization rate is improved, and the production and manufacturing cost is reduced through reducing the volume of the oxidation tank.
Description
Technical Field
The invention relates to the technical field of magnesium oxide desulfurization equipment, in particular to a photo-thermal synergistic catalyst and a conversion recovery device using the catalyst.
Background
In the existing magnesium oxide desulfurization process, the oxidation tank accounts for one third of the total volume of the absorption tower. Among the current practical solutions, wet magnesium oxide desulfurization is a promising industrial-scale SO2Control methods, e.g. in power stations and industrial boilers, SO2The removal efficiency is high, about 95-98%, the operation cost is low, the capital cost is low, and the efficiency is high. Magnesium sulfite is a major by-product of the process during magnesium oxide desulfurization andthe exhaust of the magnesium sulfite slurry can regenerate SO by consuming dissolved oxygen2And causes water pollution.
Disclosure of Invention
The invention aims to provide a photo-thermal synergistic catalyst and a device, which solve the problems of recovery of a byproduct magnesium sulfite generated by magnesium desulphurization and overlarge oxidation pond.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a photo-thermal synergistic catalyst, which is prepared by the following steps:
the method comprises the following steps: dissolving cobalt nitrate hexahydrate in isopropanol solution, and stirring until the cobalt nitrate is completely dissolved to obtain solution A;
step two: adding acetone and butyl titanate into the solution A obtained in the step one, and stirring; then carrying out hydrothermal synthesis for 3-4 h at the temperature of 95-105 ℃, and solidifying the mixed solution to obtain powder A;
step three: and (3) drying the powder A obtained in the step (II) into a granular sphere, grinding the obtained granular sphere into powder B, uniformly grinding the powder B, and roasting at 400 ℃ for 1-2 h to obtain the powdery catalyst.
A catalyst plate is prepared by the powdery catalyst, and a plurality of through holes for liquid to pass through are formed in the catalyst plate.
Further, the specific structure design of catalyst board is circular orifice plate, fan-shaped orifice plate, the via hole specifically can design for circular via hole or fan-shaped via hole.
A conversion recovery device applying photo-thermal synergistic catalyst comprises a bubbling reactor, a control valve, a temperature control device, a liquid storage tank and a liquid pump, wherein the bubbling reactor comprises a reactor shell body, a quartz tube and a base, the reactor shell body is arranged above the base, the quartz tube is arranged at the longitudinal center of the reactor shell body, and a visible light source is arranged in the quartz tube; a plurality of catalyst plates are arranged in the reactor shell body, and the photo-thermal synergistic catalyst is arranged on the catalyst plates; a liquid inlet is formed in the side wall of the lower end of the reactor shell body, and the liquid inlet is communicated with desulfurization equipment through a pipeline to introduce desulfurized slurry into the reactor shell body; a first liquid outlet is formed in the side wall of the upper end of the reactor shell body, a liquid return port is formed in one side, opposite to the liquid inlet, of the lower end of the reactor shell body, the liquid return port is connected with the liquid storage tank through a pipeline, a liquid pump is arranged on the pipeline between the liquid return port and the liquid storage tank, and a second control valve is arranged on the pipeline between the liquid pump and the liquid storage tank; the first liquid outlet is communicated with the top of the liquid storage tank through a pipeline, a first control valve is arranged on the pipeline connecting the first liquid outlet and the liquid storage tank, and a second liquid outlet is arranged on the side wall of the upper portion of the liquid storage tank.
Furthermore, a temperature control device is arranged on a pipeline connecting the first liquid outlet and the liquid storage tank, and the temperature control device is positioned between the first control valve and the liquid storage tank.
Still further, a plurality of aeration holes are formed in the bottom of the reactor shell body, and the aeration holes are regularly arranged in an annular shape.
Still further, the aeration hole specifically is provided with the multiple ring, and a plurality of aeration holes on each ring are located same circle axis and equidistant arrangement.
Still further, the visible light source is a xenon lamp, and the visible light source is cylindrical.
Still further, the catalyst plates are installed in the cavity of the reactor shell body at equal intervals.
Still further, be provided with insulation construction on the reactor shell body, insulation construction connects on the lateral wall of reactor shell body or bottom.
Compared with the prior art, the invention has the beneficial technical effects that:
the invention relates to a photothermal synergistic catalyst and a conversion recovery device applying the photothermal synergistic catalyst, which sequentially carry out the treatment steps of solution mixing, hydrothermal synthesis of powder and particle grinding to prepare a catalyst plate, and then the catalyst plate is arranged in the conversion recovery device to realizeCatalysis of magnesium sulfite to avoid SO generation2Causing water pollution. The photo-thermal synergistic catalyst has the advantages of simple preparation process, convenient operation, large yield and low price; wherein conversion recovery unit compact structure, it is small, simple to operate is swift, can improve the catalysis that oxidation rate quickened magnesium sulfite through this light and heat concerted catalyst and make it change into magnesium sulfate, promotes reaction rate through the installation visible light source simultaneously, and the utilization ratio of improvement reduces production manufacturing cost through the volume that reduces the oxidation groove.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic view of the structure of a photothermal co-catalyst and apparatus according to the present invention;
FIG. 2 is a schematic view of a thermostatic plate according to the present invention;
FIG. 3 is a schematic view of a catalyst plate structure according to the present invention;
FIG. 4 is a schematic view of a catalyst plate structure of the present invention;
description of reference numerals: 1. an annular aeration hole; 2. a liquid inlet; 3. a catalyst plate; 301. a circular via hole; 302. a fan-shaped via hole; 4. a visible light source; 5. a quartz tube; 6. a first control valve; 7. a temperature control device; 8. a liquid storage tank; 9. a liquid pump; 10. a second liquid outlet; 11. a thermostatic plate; 12. a base; 13. a bubble reactor; 14. a second control valve; 15. a first liquid outlet.
Detailed Description
As shown in fig. 3 and 4, the preparation method of the photothermal synergistic catalyst comprises the following steps:
the method comprises the following steps: dissolving cobalt nitrate hexahydrate in isopropanol solution, adding 0.9g of cobalt nitrate hexahydrate into every 100ml of isopropanol, and continuously stirring until the cobalt nitrate hexahydrate is completely dissolved;
step two: adding 0.2ml of acetone and 6ml of butyl titanate into the solution obtained in the step one, and stirring for a certain time; then carrying out hydrothermal synthesis for 3-4 h at the temperature of 95-105 ℃, and solidifying the mixed solution to obtain powder A;
step three: and (3) drying the powder A obtained in the step (II) into a granular sphere, grinding the obtained granular sphere into powder B, uniformly grinding the powder B, and roasting at 400 ℃ for 1-2 h to obtain the powdery catalyst. Specifically, the powder in the third step is dried into a granular sphere by a drying oven, and a DHG-9070A electric heating constant temperature drying oven can be adopted during drying.
And (3) manufacturing a catalyst plate, namely preparing the calcined powder into a round catalyst plate 3, wherein a plurality of through holes for liquid to pass through are formed in the catalyst plate 3. The powder is made into a plate-shaped structure by a tablet machine, and the catalyst is molded by a compression molding method.
The specific structure design of catalyst board 3 is that the hole board is the circular hole board as shown in fig. 3, the via hole on catalyst board 3 specifically can be designed as circular via hole 301, the round hole board structure is preferred because thick liquid and catalyst area of contact is big like this and the reaction time length can increase its reaction rate like the speed of passing through is slow. Or the catalyst plate is designed to be a fan-shaped orifice plate, as shown in fig. 4, the through holes on the catalyst plate are designed to be fan-shaped through holes 302, and the fan-shaped through holes 302 are designed to be a plurality of holes which are uniformly distributed in the circumference. The design of the through hole is convenient for the magnesium sulfite liquid to flow from bottom to top and obtain sufficient reaction when passing through the catalyst plate.
A conversion recovery device applying photo-thermal synergistic catalyst comprises a bubbling reactor 13, a control valve, a temperature control device 7, a liquid storage tank 8 and a liquid pump 9, wherein the bubbling reactor 13 comprises a reactor shell body, a quartz tube 5 and a base 12, the reactor shell body is arranged above the base 12, the quartz tube 5 is arranged at the longitudinal center of the reactor shell body, and a visible light source 4 is arranged in the quartz tube 5; a plurality of catalyst plates 3 are arranged in the reactor shell body, and the photothermal synergistic catalyst of claims 1-3 is arranged on the catalyst plates 3;
a liquid inlet 2 is formed in the side wall of the lower end of the reactor shell body, and the liquid inlet 2 is communicated with desulfurization equipment through a pipeline to introduce the desulfurized slurry into the reactor shell body; a first liquid outlet 15 is formed in the side wall of the upper end of the reactor shell body, a liquid return port is formed in one side, opposite to the liquid inlet 2, of the lower end of the reactor shell body, the liquid return port is connected with the liquid storage tank 8 through a pipeline, a liquid suction pump 9 is arranged on the pipeline between the liquid return port and the liquid storage tank 8, and a second control valve 14 is arranged on the pipeline between the liquid suction pump 9 and the liquid storage tank 8; the first liquid outlet 15 is communicated with the top of the liquid storage tank 8 through a pipeline, a first control valve 6 is arranged on the pipeline connecting the first liquid outlet 15 and the liquid storage tank 8, and a second liquid outlet 10 is arranged on the side wall of the upper portion of the liquid storage tank 8. Specifically, the conversion recovery device mainly utilizes the characteristic that magnesium sulfate is easily dissolved in water and magnesium sulfite is slightly dissolved in water, the upper end and the lower end of the bubbling reactor 13 are respectively communicated with the liquid storage tank 8 on one side through a pipeline to form a closed loop, slurry after catalytic treatment enters the liquid storage tank 8 for precipitation, and after multiple cycles, liquid containing magnesium sulfate at the top end flows out through the second liquid outlet 10 for recovery and reuse; the slurry precipitated in the liquid storage tank 8 returns to the bubbling reactor 13 through the liquid pump 9 to participate in catalytic reaction again, and the magnesium sulfite is converted into magnesium sulfate with maximum efficiency through repeated circulating catalysis for many times, so that recycling is realized, and the problem that the magnesium sulfite and oxygen in the slurry are changed into sulfur dioxide to pollute a water source is effectively avoided.
Specifically, a temperature control device 7 is arranged on a pipeline connecting the first liquid outlet 15 and the liquid storage tank 8, and the temperature control device 7 is located between the first control valve 6 and the liquid storage tank 8. Because the thick liquid constantly circulates in the device and can make self temperature reduce, can make temperature reduction lead to reaction rate to reduce in the catalytic reaction like this, can in time monitor the temperature according to temperature control device, maintain reaction rate and be convenient for retrieve magnesium sulfate under certain temperature with reaction control.
As shown in fig. 2, a plurality of aeration holes 1 are formed in the bottom of the reactor shell body, and the aeration holes 1 are regularly arranged in a ring shape. The aeration holes 1 are specifically provided with multiple rings, and a plurality of aeration holes 1 on each ring are located on the same circular axis and are arranged at equal intervals. Specifically, the aeration holes 1 communicate with an air compressor or the like, and compressed air is introduced into the slurry inside the bubble reactor 13 through the aeration holes 1 to supply oxygen gas to participate in the reaction.
The visible light source 4 specifically adopts a xenon lamp, and the visible light source 4 is cylindrical. The visible light source irradiates the magnesium sulfite liquid through the quartz tube, so that the catalysis speed can be improved.
The catalyst plates 3 are arranged in the cavity of the reactor shell body at equal intervals, and the conversion of the magnesium sulfite solution to magnesium sulfate is realized through the contact of a plurality of layers of catalyst plates.
The reactor shell body is provided with a heat insulation structure, the heat insulation structure is connected to the side wall or the bottom of the reactor shell body, specifically, the heat insulation structure on the side wall can wrap heat insulation materials on the side wall of the reactor shell body, and the temperature of slurry in the reactor is maintained by reducing heat dissipation; when the reactor is arranged at the bottom, a thermostatic plate 11 as shown in figure 1 can be adopted, a heating device is arranged in the thermostatic plate 11, and the heating device is communicated with a power supply and then used by family members to ensure that the temperature of slurry in the reactor is kept at about 45 ℃.
The working process of the invention is as follows:
first, a plurality of compounds are mixed according to a flow to prepare a powdered catalyst, and then the powdered catalyst is pressed into a catalyst plate with a through hole by a tablet press, and the catalyst plate 3 is installed in the bubbling reactor 13.
Then, the conversion and recovery device using photothermal synergistic catalyst is connected and assembled according to the design, the liquid inlet 2 is communicated with desulfurization equipment through a pipeline, the slurry generated by the desulfurization equipment is filled in the cavity of the bubbling reactor 13 through the liquid inlet 2, when the aeration hole 1 is connected with an air compressor to work, air is continuously introduced into the slurry in the reactor through the aeration hole 1, the visible light source 4 is opened, the first control valve 6 is opened, the second control valve 14 is closed, the slurry containing magnesium sulfite is converted into magnesium sulfate under the combined action of the catalyst plate 3 and the visible light source 4, the magnesium sulfate is easily dissolved in water, the magnesium sulfate solution at the top can flow into the liquid storage tank 8 through the first control valve 6 and the temperature control device 7, the solution in the liquid storage tank 8 can be subjected to certain precipitation, and the magnesium sulfite slightly dissolved in water and the flowing solid impurities can be precipitated to the bottom of the liquid storage tank 8, and opening the second control valve 14 after the precipitation is carried out for a certain time, allowing the magnesium sulfite solution at the bottom of the liquid storage tank 8 to flow through the second control valve 14 under the action of the liquid pumping pump 9 and flow back to the bubbling reactor 13 again, and circulating the steps until the magnesium sulfite is completely catalyzed into the magnesium sulfate, and discharging the clear liquid containing the magnesium sulfate from the second liquid outlet 10 and recycling the clear liquid. In the invention, because the catalyst belongs to the process of recycling, only supernatant liquor can be discharged after the precipitation is carried out in the liquid storage tank 8, and the supernatant liquor does not contain magnesium sulfite, and finally the magnesium sulfite can be completely oxidized into magnesium sulfate after one circulation, and no precipitation exists in the liquid storage tank.
The liquid inlet 2 can be kept in an open state all the time in the whole circulation process, so that the slurry can continuously flow in. Meanwhile, according to the requirement, a control valve can be arranged on the pipeline connected with the liquid inlet 2, and the flow of the slurry can be controlled at any time.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (10)
1. The photo-thermal synergistic catalyst is characterized by being prepared by the following steps:
the method comprises the following steps: dissolving cobalt nitrate hexahydrate in isopropanol solution, and stirring until the cobalt nitrate is completely dissolved to obtain solution A;
step two: adding acetone and butyl titanate into the solution A obtained in the step one, and stirring; then carrying out hydrothermal synthesis for 3-4 h at the temperature of 95-105 ℃, and solidifying the mixed solution into powder;
step three: and (3) drying the powder A obtained in the step (II) into a granular sphere, grinding the obtained granular sphere into powder B, uniformly grinding the powder B, and roasting at 400 ℃ for 1-2 h to obtain the powdery catalyst.
2. A catalyst plate, characterized in that it is prepared by the powdery catalyst of claim 1, and the catalyst plate (3) is provided with a plurality of through holes for passing a liquid therethrough.
3. A catalyst plate according to claim 2, wherein: the specific structure of the catalyst plate (3) is designed into a round hole plate or a fan-shaped hole plate, and the through hole can be specifically designed into a round through hole (301) or a fan-shaped through hole (302).
4. The utility model provides an use conversion recovery unit of light and heat concerted catalyst which characterized in that: the device comprises a bubbling reactor (13), a control valve, a temperature control device (7), a liquid storage tank (8) and a liquid pump (9), wherein the bubbling reactor (13) comprises a reactor shell body, a quartz tube (5) and a base (12), the reactor shell body is arranged above the base (12), the quartz tube (5) is arranged at the longitudinal center of the reactor shell body, and a visible light source (4) is arranged in the quartz tube (5); a plurality of catalyst plates (3) are arranged in the reactor shell body, and the photothermal synergistic catalyst of any one of claims 1 to 3 is arranged on the catalyst plates (3);
a liquid inlet (2) is formed in the side wall of the lower end of the reactor shell body, and the liquid inlet (2) is communicated with desulfurization equipment through a pipeline to introduce desulfurized slurry into the reactor shell body; a first liquid outlet (15) is formed in the side wall of the upper end of the reactor shell body, a liquid return port is formed in one side, opposite to the liquid inlet (2), of the lower end of the reactor shell body and connected with the liquid storage tank (8) through a pipeline, a liquid pump (9) is arranged on the pipeline between the liquid return port and the liquid storage tank (8), and a second control valve (14) is arranged on the pipeline between the liquid pump (9) and the liquid storage tank (8); the first liquid outlet (15) is communicated with the top of the liquid storage tank (8) through a pipeline, a first control valve (6) is arranged on the pipeline connecting the first liquid outlet (15) and the liquid storage tank (8), and a second liquid outlet (10) is arranged on the side wall of the upper portion of the liquid storage tank (8).
5. The photothermal synergistic catalyst applied conversion recovery device according to claim 4, wherein: the first liquid outlet (15) and a pipeline connected with the liquid storage tank (8) are provided with a temperature control device (7), and the temperature control device (7) is located between the first control valve (6) and the liquid storage tank (8).
6. The photothermal synergistic catalyst applied conversion recovery device according to claim 4, wherein: the reactor shell body bottom is provided with a plurality of aeration holes (1), and a plurality of aeration holes (1) are cyclic annular and are regularly arranged.
7. The photothermal synergistic catalyst applied conversion recovery device according to claim 6, wherein: the aeration holes (1) are specifically provided with multiple rings, and a plurality of aeration holes (1) on each ring are located on the same circular axis and are arranged at equal intervals.
8. The photothermal synergistic catalyst applied conversion recovery device according to claim 5, wherein: the visible light source (4) is a xenon lamp, and the visible light source (4) is cylindrical.
9. The photothermal synergistic catalyst applied conversion recovery device according to claim 5, wherein: the catalyst plates (3) are mounted in the cavity of the reactor shell body at equal intervals.
10. The photothermal synergistic catalyst applied conversion recovery device according to claim 5, wherein: the reactor shell body is provided with a heat insulation structure, and the heat insulation structure is connected to the side wall or the bottom of the reactor shell body.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269328A (en) * | 2008-05-19 | 2008-09-24 | 中国科学院山西煤炭化学研究所 | Cobalt group catalyst for synthesizing gasoline and diesel oil cut fraction, production method and application thereof |
| CN101722057A (en) * | 2009-11-24 | 2010-06-09 | 武汉理工大学 | Method for preparing semiconductor oxide catalyst with synergistic effect of light and heat |
| CN102389785A (en) * | 2011-09-26 | 2012-03-28 | 武汉理工大学 | Method for preparing TiO2 nano crystals with high photocatalytic activity |
| CN107308783A (en) * | 2017-08-31 | 2017-11-03 | 山东瑞嘉通风环保科技有限公司 | A kind of simultaneous desulfuration and denitration technique by wet flue gas method |
| CN107741468A (en) * | 2017-11-09 | 2018-02-27 | 中国科学院电工研究所 | A kind of catalyst test apparatus of magneto-optic heat collaboration |
| CN108261985A (en) * | 2018-01-17 | 2018-07-10 | 天津中环电炉股份有限公司 | A kind of horizontal-type high temperature photo-thermal catalytic reaction device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9999870B2 (en) * | 2014-09-12 | 2018-06-19 | Paul Gregory O'BRIEN | Nanostructured solar selective catalytic supports |
-
2018
- 2018-08-13 CN CN201810915878.6A patent/CN108722416B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101269328A (en) * | 2008-05-19 | 2008-09-24 | 中国科学院山西煤炭化学研究所 | Cobalt group catalyst for synthesizing gasoline and diesel oil cut fraction, production method and application thereof |
| CN101722057A (en) * | 2009-11-24 | 2010-06-09 | 武汉理工大学 | Method for preparing semiconductor oxide catalyst with synergistic effect of light and heat |
| CN102389785A (en) * | 2011-09-26 | 2012-03-28 | 武汉理工大学 | Method for preparing TiO2 nano crystals with high photocatalytic activity |
| CN107308783A (en) * | 2017-08-31 | 2017-11-03 | 山东瑞嘉通风环保科技有限公司 | A kind of simultaneous desulfuration and denitration technique by wet flue gas method |
| CN107741468A (en) * | 2017-11-09 | 2018-02-27 | 中国科学院电工研究所 | A kind of catalyst test apparatus of magneto-optic heat collaboration |
| CN108261985A (en) * | 2018-01-17 | 2018-07-10 | 天津中环电炉股份有限公司 | A kind of horizontal-type high temperature photo-thermal catalytic reaction device |
Non-Patent Citations (1)
| Title |
|---|
| 钴掺杂二氧化钛光催化剂制备及光催化活性;袁春华等;《无机盐工业》;20111130;第43卷(第11期);31-33 * |
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