CN113019308B - Gas-phase mercury removing agent and preparation method thereof - Google Patents
Gas-phase mercury removing agent and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of gas-phase demercuration, and particularly relates to a gas-phase demercuration agent and a preparation method thereof. The invention can change the reaction rate among several chemical substances participating in the reaction through the synergistic action among the copper oxide, the nickel oxide and the vanadium pentoxide metal group oxide components, and is beneficial to the conversion of elemental mercury to oxidized mercury, thereby adsorbing the mercury in a valence state for removal. Specifically, the mercury removing agent is based on copper oxide, has low toxicity and low price, and has simple metal ion ligand, uniform particle size dispersion and excellent adsorption performance; the nickel oxide component can introduce a three-dimensional porous structure into the mercury removing agent, so that the specific surface area is increased, the catalytic activity is further increased, and the three-dimensional structure is generated in the reaction and is not easy to damage by external force, so that the mechanical strength of the mercury removing agent can be properly increased; the vanadium pentoxide can further improve the catalytic performance of the mercury removing agent, and simultaneously, the vanadium pentoxide can oxidize the mercury simple substance into oxidized mercury, so that the mercury can be removed more easily.
Description
Technical Field
The invention belongs to the technical field of gas-phase demercuration, and particularly relates to a gas-phase demercuration agent and a preparation method thereof.
Background
Coal and fossil fuel are main energy resources, and mercury is in the form of granular mercury and gaseous bivalent mercury (Hg) in the combustion process of coal 2+ ) And elemental mercury (Hg), and can remain in the atmosphere for extended periods of time, causing global mercury pollution.
People have long recognized that mercury is a toxic substance, and the harm of trace element mercury is more and more important to people along with the massive combustion of coal resources. Research on mercury removal control technology shows that gas-phase elemental mercury in natural gas, oilfield semi-produced gas, nitrogen and air is difficult to capture, and the conventional successful control method is to convert elemental mercury into gaseous mercury oxide by using a catalyst and an additive in the combustion process by using the morphological conversion of mercury so as to further remove the elemental mercury.
At present, the common demercuration methods mainly comprise: the method comprises the following steps of (1) carrying out a chemical adsorption method, a low-temperature separation method, a solvent absorption method, a membrane separation method and an anion resin separation method, wherein the low-temperature separation method has limitation on temperature, and the process conditions are difficult to control the temperature in working conditions; the solution absorption method has tighter control on the concentration of the prepared solution, and is not easy to popularize and use in the amplification production; the membrane separation method has requirements on the production technology of the membrane, needs frequent replacement and has higher cost; the anion resin process has strict requirements on the selection and use of resin, and is difficult to control in practical application; the chemical adsorption method is relatively convenient to operate, easy to control and low in cost, so that the chemical adsorption method is widely applied. However, the chemical adsorption method has high requirements on active components, metal elements with high selectivity need to be selected, and most of mercury removers on the market have the defects of low precision, poor mercury capacity and the like; in addition, the preparation of the mercury removing agent by the existing chemical adsorption method generally has the problems of difficult control of temperature and concentration, complex preparation and the like, so that the mercury removing agent and the preparation method thereof, which have the advantages of high precision, good effect, simple preparation method and easy operation, are provided, and the mercury removing agent and the preparation method thereof have wide application prospects.
Disclosure of Invention
Therefore, the invention aims to overcome the defects of low precision, difficult control of a preparation method, unstable products and the like of the mercury removing agent in the prior art, and provide the gas-phase mercury removing agent and the preparation method thereof.
Therefore, the invention provides the following technical scheme:
the invention provides a gas-phase mercury removing agent, which comprises a carrier and a metal oxide component loaded on the carrier, wherein the metal oxide component comprises vanadium pentoxide, nickel oxide and copper oxide;
the mass ratio of the carrier to the metal oxide component is 0.01-0.2:1.
optionally, the molar ratio of vanadium pentoxide to nickel oxide to copper oxide in the metal oxide component is 1:0.1-2:0.1-1.
optionally, the carrier is at least one of titanium dioxide, silicon dioxide and alumina.
The invention provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
s1, uniformly mixing a vanadium-containing compound, a nickel-containing compound and organic acid, adding alcohol and water, and uniformly mixing to obtain a mixed solution;
s2, adding a copper-containing compound into the obtained mixed solution, uniformly mixing, stirring and aging to obtain a steeping liquor;
and S3, impregnating the carrier by using the obtained impregnation liquid, drying and roasting to obtain the gas-phase mercury removing agent.
Optionally, in the step S1, the amount of the organic acid is 5% to 10% by mass of the vanadium-containing compound.
Optionally, in the step S1, the amount of the alcohol and the water is 1 to 3mL/g based on the total mass of the metal compound.
Optionally, the volume ratio of the alcohol to the water is 0.5-2:1.
optionally, the mixing temperature in the step S1 is 40-60 ℃;
the stirring time in the step S2 is 20-50min; the temperature of the aging step is 70-90 ℃, and the aging time is 24-48h.
Optionally, in the step S3, the drying temperature is 100 to 150 ℃, and the drying time is 2 to 3 hours;
the roasting temperature is 400-550 ℃, and the roasting time is 4-7h.
Optionally, the vanadium-containing compound is selected from one or more of sodium metavanadate, vanadyl sulfate and vanadium pentoxide;
the nickel-containing compound is selected from one or more of nickel nitrate, nickel sulfate, nickel oxide and nickel acetate;
the copper-containing compound is selected from one or more of copper nitrate, copper sulfate and copper acetate;
the organic acid is one or more of citric acid, stearic acid, benzoic acid and oleic acid;
the alcohol is one or more of ethanol, methanol, propanol, isopropanol, ethylene glycol and glycerol.
Optionally, the time of immersion is 6-12 hours.
The gas-phase mercury removing agent or the gas-phase mercury removing agent prepared by the preparation method provided by the invention is applied to mercury removal of natural gas, oilfield associated gas, nitrogen or air.
The technical scheme of the invention has the following advantages:
the gas-phase mercury removing agent provided by the invention comprises a carrier and a metal oxide component loaded on the carrier, wherein the metal oxide component comprises vanadium pentoxide, nickel oxide and copper oxide; the mass ratio of the carrier to the metal oxide component is 0.01-0.2:1. the invention can change the reaction rate of several chemical substances participating in the reaction through the synergistic action among the copper oxide, the nickel oxide and the vanadium pentoxide metal group oxide components, and is beneficial to the conversion of elemental mercury to oxidized mercury, thereby being convenient for absorbing the mercury in a valence state for removal. Specifically, the mercury removing agent is based on copper oxide, has low toxicity and low price, and has simple metal ion ligand, uniform particle size dispersion and excellent adsorption performance; the nickel oxide component can introduce a three-dimensional porous structure into the mercury removing agent, so that the specific surface area is increased, the catalytic activity is further increased, so that the catalytic activity is increased by adding the nickel-containing compound, the three-dimensional structure is generated in the reaction and is not easily damaged by external force, and the mechanical strength of the mercury removing agent is properly increased; the vanadium pentoxide can further improve the catalytic performance of the mercury removing agent, and simultaneously, the vanadium pentoxide can oxidize the mercury simple substance into oxidized mercury, so that the mercury can be removed more easily.
The gas-phase mercury removing agent provided by the invention can further improve the mercury removing effect of the mercury removing agent by optimizing the proportion of the metal oxide components.
The gas-phase mercury removing agent provided by the invention is characterized in that the carrier is at least one of titanium dioxide, silicon dioxide and alumina. The invention can improve the binding force between the carrier and the metal oxide component and the stability of the mercury removing agent through the selection of the carrier, simultaneously, the three selected carriers can better support various active components and can uniformly disperse the active components, and in addition, the selected carrier also has the advantages of large surface area, strong adsorbability on pollutants to be adsorbed, favorability for the exchange between solid and gas and the like.
According to the preparation method of the gas-phase mercury removing agent, provided by the invention, through the mutual matching of the steps, the oxide mercury removing agent prepared by the preparation method has the advantages of high specific surface area and uniform pore diameter, a plurality of porous channels are provided, so that more active components are distributed on the carrier, the catalytic performance of the mercury removing agent is improved, the preparation steps are simple and easy to control, and the preparation method is convenient to popularize and apply. The use of the organic acid and the alcohol is beneficial to the dissolution of the vanadium-containing compound, so that the vanadium-containing compound and the nickel-containing compound can be fully mixed, a novel framework structure is more favorably formed in a loading step, the dispersion of active components in the reaction is more favorably realized, the specific surface area is increased, and stronger adsorption force is obtained.
The gas-phase mercury removing agent prepared by the invention has stronger adsorption capacity, the metal oxide can form a compound with mercury ions, and the gas-phase mercury removing agent has good mercury removing performance in the environment of normal-temperature natural gas, semi-produced gas in oil fields, nitrogen and air, has high conversion rate and adsorption capacity, and has good application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a process flow diagram for preparing a gas-phase mercury removing agent provided by the invention;
FIG. 2 is an SEM electron micrograph of a gaseous mercury remover in example 1 of the present invention;
Detailed Description
The following examples are provided to better understand the present invention, not to limit the best mode, and not to limit the content and protection scope of the present invention, and any product that is the same or similar to the present invention and is obtained by combining the present invention with other features of the prior art and the present invention falls within the protection scope of the present invention.
The examples do not show the specific experimental steps or conditions, and can be performed according to the conventional experimental steps described in the literature in the field. The reagents or instruments used are not indicated by manufacturers, and are all conventional reagent products which can be obtained commercially.
Example 1
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding ammonium metavanadate (NH) 4 VO 3 ) 118.26g, 28.13g Nickel nitrate (Ni (NO) 3 ) 2 ·6H 2 O) and 6.03g of citric acid (C) 6 H 8 O 7 ) Stirring well, measuring 200ml water and 100ml ethanol, mixing and stirring well, adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 20.64g, and uniformly mixed by stirring. Then stirring for 20min at 40 ℃, and aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 300.32g of titanium dioxide (TiO) was weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 4h to obtain the final gas-phase mercury removing agent.
Fig. 2 is an SEM electron micrograph of the vapor phase mercury removing agent provided in this embodiment, and it can be seen from the micrograph that the synthesized vapor phase mercury removing agent is porous, has a clear configuration and has through pores, provides more pore structures for adsorption, and can facilitate the occurrence of an adsorption reaction. SEM electron micrographs of the gas-phase mercury removing agent obtained in other examples are similar to those of the example and are not listed.
Example 2
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadyl sulfate (VOSO) 4 ) 163.36g, 130.62g Nickel sulfate (NiSO) 4 ·6H 2 O) and 10.03g of citric acid (C) 6 H 8 O 7 ) Weighing 300ml of water and 300ml of ethanol, mixing and stirring uniformly, and then adding copper sulfate (CuSO) into the solution 4 ) 16.24g, and uniformly mixing by stirring. Then stirring for 30min at 50 ℃, and aging for 36h at 80 ℃ to obtain the impregnation liquid.
(2) 120.04g of silicon dioxide (SiO) are weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 6 hours.
(3) And drying the impregnated carrier at 120 ℃ for 2.5h, and then roasting at 500 ℃ for 5h to obtain the final gas-phase mercury removing agent.
Example 3
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadium pentoxide (V) 2 O 5 ) 181.56g, 75.36g Nickel oxide (NiO) and 12.15g citric acid (C) 6 H 8 O 7 ) 250ml of water and 375ml of ethanol are weighed, mixed and stirred evenly, and then copper nitrate (Cu (NO) is added into the solution 3 ) 2 ) 19.65g, and uniformly mixing by stirring. Stirring at 60 deg.C for 40min, and aging at 90 deg.C for 48 hr to obtain the impregnation solution.
(2) 62.56g of alumina (Al) are weighed out 2 O 3 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring, and soaking for 10 hours.
(3) And drying the impregnated carrier at 150 ℃ for 3h, and roasting at 550 ℃ for 6h to obtain the final gas-phase mercury removing agent.
Example 4
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding ammonium metavanadate (NH) 4 VO 3 ) 116.23g,354.64g nickel acetate (C) 4 H 6 NiO 4 ) And 7.89g citric acid (C) 6 H 8 O 7 ) Weighing 400ml of water and 800ml of ethanol, mixing and stirring uniformly, and then adding copper nitrate (Cu (NO) into the solution 3 ) 2 ) 18.84g, and uniformly mixing by stirring. Stirring at 40 deg.C for 50min, and aging at 70 deg.C for 24 hr to obtain the impregnation solution.
(2) 60.01g of titanium dioxide (TiO) was weighed 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 12 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 7h to obtain the final gas-phase mercury removing agent.
Example 5
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadyl sulfate (VOSO) 4 ) 163.38g, 26.35g Nickel nitrate (Ni (NO) 3 ) 2 ·6H 2 O) and 13.94g of citric acid (C) 6 H 8 O 7 ) Weighing 200ml of water and 100ml of ethanol, mixing and stirring uniformly, and adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 20.45g, stirring and mixing evenly, then stirring for 20min at 50 ℃, and then aging for 36h at 80 ℃ to obtain the impregnation liquid.
(2) 60.21g of alumina (Al) was weighed 2 O 3 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 120 ℃ for 2.5h, and roasting at 500 ℃ for 4h to obtain the final gas-phase mercury removing agent.
Example 6
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding ammonium metavanadate (NH) 4 VO 3 ) 118.21g,36.56g nickel oxide (NiO) and 6.04g citric acid (C) 6 H 8 O 7 ) Weighing 150ml of water and 150ml of watermixing with ml ethanol, stirring, and adding copper sulfate (CuSO) into the solution 4 ) 16.23g, and uniformly mixing by stirring. Then stirring for 30min at the temperature of 60 ℃, and then aging for 48h at the temperature of 90 ℃ to obtain the impregnation liquid.
(2) 300.12g of silicon dioxide (SiO) are weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 6 hours.
(3) And drying the impregnated carrier at 150 ℃ for 3h, and roasting at 550 ℃ for 5h to obtain the final gas-phase mercury removing agent.
Example 7
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadium pentoxide (V) 2 O 5 ) 181.95g, 290.81g Nickel nitrate (Ni (NO) 3 ) 2 ·6H 2 O) and 18.19g of citric acid (C) 6 H 8 O 7 ) Weighing 500ml of water and 250ml of ethanol, mixing and stirring uniformly, and adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 20.12g, stirring and mixing evenly, then stirring for 40min at 40 ℃, and then aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 75.04g of titanium dioxide (TiO) are weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring, and soaking for 10 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 6h to obtain the final gas-phase mercury removing agent.
Example 8
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadium pentoxide (V) 2 O 5 ) 181.96g, 131.86g nickel sulfate (NiSO) 4 ·6H 2 O) and 18.91g citric acid (C) 6 H 8 O 7 ) Weighing 300ml of water and 150ml of ethanol, mixing and stirring uniformly, and then adding copper sulfate (CuSO) into the solution 4 ) 16.21g, and uniformly mixing by stirring. Then stirring for 50min at 50 ℃, and then aging for 36h at 80 ℃ to obtain the impregnation liquid.
(2) 22.51g of alumina (Al) was weighed out 2 O 3 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring, and soaking for 10 hours.
(3) And drying the impregnated carrier at 120 ℃ for 2.5h, and roasting at 500 ℃ for 7h to obtain the final gas-phase mercury removing agent.
Example 9
The embodiment provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Adding vanadium pentoxide (V) 2 O 5 ) 200.21g, 120.12g Nickel nitrate (Ni (NO) 3 ) 2 ·6H 2 O) and 18.01g of citric acid (C) 6 H 8 O 7 ) Weighing 500ml of water and 250ml of ethanol, mixing and stirring uniformly, and adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 50.11g, stirring and mixing evenly, then stirring for 40min at 40 ℃, and then aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 75.21g of titanium dioxide (TiO) are weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 6h to obtain the final gas-phase mercury removing agent.
Comparative example 1
The comparative example provides a preparation method of a gas-phase mercury removing agent
(1) 155.14g of nickel nitrate (Ni (NO) was added 3 ) 2 ·6H 2 O) and 9.94g of citric acid (C) 6 H 8 O 7 ) Stirring well, measuring 200ml water and 100ml ethanol, mixing and stirring well, adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 10.01g, and stirring and mixing uniformly. Then stirring for 20min at 40 ℃, and aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 300.21g of titanium dioxide (TiO) was weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 4h to obtain the final gas-phase mercury removing agent.
Comparative example 2
The comparative example provides a preparation method of a gas-phase mercury removing agent
(1) Adding ammonium metavanadate (NH) 4 VO 3 ) 141.08g and 12.06g citric acid (C) 6 H 8 O 7 ) Stirring well, measuring 200ml water and 100ml ethanol, mixing, stirring well, adding copper acetate (Cu (CH) 3 COO) 2 ·H 2 O) 24.21g, and uniformly mixed by stirring. Then stirring for 20min at 40 ℃, and aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 300.12g of titanium dioxide (TiO) was weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 4h to obtain the final gas-phase mercury removing agent.
Comparative example 3
The comparative example provides a preparation method of a gas-phase mercury removing agent, which comprises the following steps:
(1) Mixing ammonium metavanadate (NH) 4 VO 3 ) 116.89g, 30.08g nickel nitrate (Ni (NO) 3 ) 2 ·6H 2 O) is added into 300mL ammonia water and stirred evenly, and then copper acetate (Cu (CH) is added into the solution 3 COO) 2 ·H 2 O) 19.96g, and uniformly mixed by stirring. Then stirring for 20min at 40 ℃, and aging for 24h at 70 ℃ to obtain the impregnation liquid.
(2) 400.02g of titanium dioxide (TiO) are weighed out 2 ) And (3) soaking the carrier into the solution in the step (1), uniformly stirring and soaking for 8 hours.
(3) And drying the impregnated carrier at 100 ℃ for 2h, and roasting at 400 ℃ for 4h to obtain the final gas-phase mercury removing agent.
Evaluation of Mercury remover Performance and Activity
The vapor-phase mercury removers prepared in the above examples 1 to 9 and comparative examples 1 to 3 were subjected to evaluation experiments, and the compressive strength, specific surface area, pore volume, outlet accuracy and mercury penetration capacity of the vapor-phase mercury removers were examined to examine the performance of the mercury removers, and the results of the examination were as follows.
1. Test for compressive Strength
The mechanical strength of the calcined product was measured using a particle strength tester (model HB-KQD, jinan Haibo instruments Co.).
2. Specific surface area and pore volume test
The specific surface area, pore volume and pore diameter of the baked finished product were measured using a physical adsorption apparatus (model number ASAP2460, mac instruments USA).
3. Outlet accuracy and penetrating mercury capacity
The demercuration effect (outlet precision and penetrating mercury capacity) of the demercuration agent is tested by a mercury determinator (model ZYG-II, beijing Leiman science and technology company), the outlet precision is tested by the content of mercury in tail gas, and the penetrating mercury capacity is the performance of the catalyst after the test is finished;
and (3) testing conditions are as follows:
selecting a reaction glass tube with the inner diameter of 20mm and the length of 350 mm; filling 0.05L of gas-phase mercury removing agent into a reaction tube, introducing nitrogen at normal temperature and normal pressure, wherein the content of elemental mercury in the nitrogen is 30 mg/m 3 The gas flow rate is controlled at 3L/min.
TABLE 1 test results
As can be seen from the data in the table, the product obtained by the invention has outstanding compressive strength, larger specific surface area and pore volume, and excellent outlet precision and penetrating mercury capacity compared with the prior agent.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (9)
1. The application of a gas-phase mercury removing agent in the mercury removal of natural gas, oilfield associated gas, nitrogen or air is characterized in that the gas-phase mercury removing agent comprises a carrier and a metal oxide component loaded on the carrier, wherein the metal oxide component comprises vanadium pentoxide, nickel oxide and copper oxide;
the mass ratio of the carrier to the metal oxide component is 0.01-0.2:1.
2. the use according to claim 1, wherein the molar ratio of vanadium pentoxide, nickel oxide and copper oxide in the metal oxide composition is 1:0.1-2:0.1-1.
3. Use according to claim 1 or 2, wherein the support is at least one of titania, silica, alumina.
4. Use according to claim 3, characterized in that the preparation method of the gas-phase mercury removing agent comprises the following steps:
s1, uniformly mixing a vanadium-containing compound, a nickel-containing compound and organic acid, adding alcohol and water, and uniformly mixing to obtain a mixed solution;
s2, adding a copper-containing compound into the obtained mixed solution, uniformly mixing, stirring and aging to obtain a steeping liquor;
and S3, impregnating the carrier by using the obtained impregnation liquid, drying and roasting to obtain the gas-phase mercury removing agent.
5. The use according to claim 4, wherein in step S1, the organic acid is used in an amount of 5-10% by mass based on the vanadium-containing compound.
6. The use according to claim 4 or 5, wherein in step S1, the alcohol and water are used in an amount of 1-3mL/g, based on the total mass of the metal compound;
the volume ratio of the alcohol to the water is 0.5-2.
7. The use according to claim 6, wherein the mixing temperature in step S1 is 40-60 ℃;
the stirring time of the step S2 is 20-50min; the temperature of the aging step is 70-90 ℃, and the aging time is 24-48h.
8. The use according to claim 6, wherein in step S3, the drying temperature is 100-150 ℃ and the drying time is 2-3h;
the roasting temperature is 400-550 ℃, and the roasting time is 4-7h.
9. The use according to claim 7 or 8, wherein the vanadium-containing compound is selected from one or more of sodium metavanadate, vanadyl sulfate, vanadium pentoxide;
the nickel-containing compound is selected from one or more of nickel nitrate, nickel sulfate, nickel oxide and nickel acetate;
the copper-containing compound is selected from one or more of copper nitrate, copper sulfate and copper acetate;
the organic acid is one or more of citric acid, stearic acid, benzoic acid and oleic acid;
the alcohol is one or more of ethanol, methanol, propanol, isopropanol, ethylene glycol and glycerol.
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| CN102335603A (en) * | 2011-07-20 | 2012-02-01 | 中电投远达环保工程有限公司 | Denitrification catalyst capable of oxidizing simple substance mercury |
| JP2012210596A (en) * | 2011-03-31 | 2012-11-01 | Mitsubishi Heavy Ind Ltd | Method for evaluating mercury oxidation catalyst |
| CN110711488A (en) * | 2019-10-28 | 2020-01-21 | 庆泓技术(上海)有限公司 | Flue gas desulfurization, denitration and demercuration integrated method |
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| JP2012210596A (en) * | 2011-03-31 | 2012-11-01 | Mitsubishi Heavy Ind Ltd | Method for evaluating mercury oxidation catalyst |
| CN102335603A (en) * | 2011-07-20 | 2012-02-01 | 中电投远达环保工程有限公司 | Denitrification catalyst capable of oxidizing simple substance mercury |
| CN110711488A (en) * | 2019-10-28 | 2020-01-21 | 庆泓技术(上海)有限公司 | Flue gas desulfurization, denitration and demercuration integrated method |
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