CN111097257A - Preparation method of desulfurization and denitrification auxiliary agent and product thereof - Google Patents
Preparation method of desulfurization and denitrification auxiliary agent and product thereof Download PDFInfo
- Publication number
- CN111097257A CN111097257A CN201911094560.7A CN201911094560A CN111097257A CN 111097257 A CN111097257 A CN 111097257A CN 201911094560 A CN201911094560 A CN 201911094560A CN 111097257 A CN111097257 A CN 111097257A
- Authority
- CN
- China
- Prior art keywords
- sulfur
- containing oil
- oil product
- desulfurization
- denitrification
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B01D53/14—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 by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- 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
- B01D53/14—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 by absorption
- B01D53/1425—Regeneration of liquid absorbents
-
- 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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/20—Organic absorbents
- B01D2252/205—Other organic compounds not covered by B01D2252/00 - B01D2252/20494
- B01D2252/2056—Sulfur compounds, e.g. Sulfolane, thiols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a preparation method of a desulfurization and denitrification auxiliary agent and a product thereof, which comprises the steps of reacting a sulfur-containing oil product or a pickling solution of the sulfur-containing oil product, an oxidant and a catalyst to obtain a sulfoxide compound serving as the desulfurization and denitrification auxiliary agent, wherein the sulfur content in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is more than 5-10% by mass; the molar ratio of the oxidant to the sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.5-2: 1-1.5; the molar ratio of the catalyst to sulfur in the sulfur-containing oil or the pickling solution of the sulfur-containing oil is 0.01-1: 0.8-2.0. The invention reduces the cost of the desulfurization and denitrification agent, is insoluble in water, and can be recycled after being separated from the final product; in addition, the sulfur-containing organic matters in the sulfur-containing oil product are comprehensively utilized, the additional value of the sulfur-containing organic matters is increased, the sulfur content in the utilized oil product is extremely low, and the atmospheric pollution caused in the use process is reduced.
Description
Technical Field
The invention relates to the fields of environmental protection, chemical industry and materials, in particular to a preparation method of a desulfurization and denitrification auxiliary agent and a product thereof.
Background
The combustion of fossil fuels generates a large amount of nitrogen oxides and sulfur dioxide, and the development of flue gas desulfurization and denitrification technology is promoted. Some wet scrubbing processes, including limestone-gypsum process, magnesium oxide process, and double alkali scrubbing process, have been used for sulfur dioxide removal. The ammonia desulfurization technology is a wet desulfurization technology which is widely applied at present, can produce valuable products such as ammonium sulfate fertilizer and the like as byproducts during desulfurization, does not produce any secondary pollution, belongs to a green and clean desulfurization technology, and has low denitration capability.
At present, to NOXThe emission control of (2) is mainly developed from three aspects of fuel improvement, treatment in the combustion process and treatment after combustion. The use of high-quality fuels entails increased costs from the viewpoint of fuel improvement, while the use of alternative fuels is currently associated with disadvantages in plant technology. From the treatment point of view in the combustion process, the low-nitrogen combustion technology has been the most widely used, economical and practical measure, which can inhibit and reduce NO to a certain extentXBut the integral denitration rate is about 30 to 50 percent, and the generation of NO can not be satisfiedXEmission concentration control requirements. From the consideration of post-combustion treatment, NO can be achieved by establishing a flue gas denitration facilityXThe emission requirement is the preferred emission reduction strategy at present, so that the development of an efficient and low-cost flue gas denitration system for controlling NOXAn important research direction for emissions.
Flue gas denitration technologies developed by research in various countries in the world can be divided into dry denitration and wet denitration in terms of treatment processes. The dry method mainly comprises Selective Catalytic Reduction (SCR), selective non-catalytic reduction (SNCR), an adsorption method, a red-hot carbon reduction method, a high-energy electron activation oxidation method and the like; the wet method mainly comprises a water absorption method, a hydrochloric acid method, a yellow phosphorus method, a hydrogen peroxide method, a complex absorption method, a liquid membrane method, a microbial degradation method and the like; the dry-wet combination method is a tip removing method formed by combining catalytic oxidation and wet method. For denitration techniques, the major industrial applications are SCR (selective catalytic reduction) and SCNR (selective non-catalytic reduction). The SCR method has high denitration efficiency, but the process is complex, and the catalyst is expensive and volatile; the SNCR method has simple process and low device operation cost, but has lower denitration efficiency. The microbiological method, the yellow phosphorus method, the hydrogen peroxide method and the like have certain difficulties in practical application due to the limitations of operating conditions, toxicity, cost and the like.
The wet scrubbing technology has the advantages of low investment and operation cost, simple equipment structure and the like, and is widely applied to flue gas desulfurization. But NO in the exhaust gas of the combustion systemXMore than 95% of NO exists in the form of NO, and NO is difficult to dissolve in water, so that the traditional wet washing technology is not applicable.
Thus, it is desirable to first convert NO to water-solubleGood substances can be removed effectively by washing with an absorption liquid, wherein NO is converted into NO2Or form a water-soluble substance becomes the key to the technology. Nitrogen oxides consisting essentially of nitrogen dioxide (NO)2) And Nitric Oxide (NO), which is a major proportion of nitric oxide, unlike the low solubility of nitric oxide, which has a better solubility for nitrogen dioxide, and thus, converting nitric oxide to nitrogen dioxide, or forming a water-soluble substance, can be absorbed using known processes such as lye absorption. However, similar processes all require the consumption of alkali and other substances, which increases the cost.
Sulfoxides, possibly in combination with HNO2And H2SO3Forming stable complex by using unstable intermediate, and oxidizing the stable complex to produce HNO3And H2SO4, separated from the complex, thereby leading the sulfoxide to be capable of recombining new pollutant molecules to achieve the effect of recycling. At present, common sulfoxide substances such as dimethyl sulfoxide and the like are often high in price and are dissolved in water, so that the separation of the sulfoxide substances from liquid generated by desulfurization and denitrification is difficult, and the use value of the sulfoxide substance desulfurization and denitrification process is reduced.
The petroleum resources in China are insufficient, imported sulfur-containing crude oil is increased year by year, the requirements on the product quality are higher and higher due to increasingly strict environmental protection requirements, and the requirements on various transportation fuel oil, particularly diesel oil and chemical light oil, are increased rapidly. The high-sulfur crude oil not only has high sulfur content, but also contains a large amount of coke and asphaltene, so the high-sulfur crude oil is the most difficult part to process in petroleum, and the reasonable utilization of the sulfur-containing crude oil is an important means for ensuring the sustainable development of petroleum resources.
Disclosure of Invention
The invention aims to provide a preparation method of a desulfurization and denitrification auxiliary agent.
In order to achieve the purpose, the invention adopts the technical scheme that:
a preparation method of a desulfurization and denitrification auxiliary agent comprises the steps of reacting a sulfur-containing oil product or a pickling solution of the sulfur-containing oil product, an oxidant and a catalyst to obtain a sulfoxide compound serving as the desulfurization and denitrification auxiliary agent,
wherein: the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product contains more than 5 to 10 percent of sulfur by mass; the molar ratio of the oxidant to the sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.5-2: 1-1.5; the molar ratio of the catalyst to sulfur in the sulfur-containing oil or the pickling solution of the sulfur-containing oil is 0.01-1: 0.8-2.0.
Preferably, the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, the oxidant and the catalyst are sequentially reacted, separated and purified:
reaction: mixing and stirring the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, an oxidant and a catalyst, wherein the reaction conditions are as follows: the reaction temperature is 50-100 ℃, the reaction time is 0.3-3 hours, and an intermediate product is obtained,
separation: separating the intermediate product to obtain the sulfoxide compound R1SOR2，
And (3) purification: after the reaction is finished, the three phases of hydrocarbon, sulfoxide and water are separated, and after the separation of layers, the sulfoxide is washed to be neutral and then dried, so that the sulfoxide compound with the purity of 80-99% is obtained.
Preferably, the sulfide effective in the sulfur-containing oil or the pickling solution of the sulfur-containing oil comprises thioether.
Preferably, the sulfur-containing oil is a sulfur-containing crude oil fraction.
Preferably, when the pickling solution for sulfur-containing oil products is used, the pickling solution for sulfur-containing oil products is pretreated, and the steps of sequentially adding water into the pickling solution for sulfur-containing oil products are as follows: the ratio of the pickling solution of the sulfur-containing oil product to water is 1:0.5-2.0, the two are mixed and then are subjected to standing, layering, primary filtering, water washing, drying and secondary filtering, and the pretreatment is finished, wherein: washing with water until the pH value is neutral.
Preferably, the oxidizing agent is hydrogen peroxide or periodic acid; the catalyst is acetic acid or acetic anhydride.
Preferably, the stock material does not contain an alkali-containing agent.
Preferably, the molar ratio of the oxidant to sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.8-1.2: 1-1.2; the molar ratio of the catalyst to sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.2-0.6: 1-1.3.
Further preferably, the reaction temperature of the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, the oxidant and the catalyst is 70-80 ℃; the reaction time of the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, the oxidant and the catalyst is 0.5 to 1.2 hours.
The pickling solution of the sulfur-containing oil product or the sulfur-containing oil product contains a large amount of sulfides, such as mercaptan, thioether, thiophene and the like, the sulfides in the medium fraction are mainly thioether, and the thioether can generate a sulfoxide compound under the action of an oxidant and a catalyst, wherein the reaction formula is as follows:
the sulfoxide compound thus obtained is referred to as: s-sulfoxide, having a water-insoluble character, which can react with H2SO3Generate S-sulfoxide as hydrogen2SO3With HNO2Generate S-sulfoxide as chemical vapor of HNO2H formed by oxidation of the product2SO4With HNO3The S-sulfoxide is difficult to dissolve in water, so that the S-sulfoxide can be separated from the final product and recycled.
The invention also aims to provide a desulfurization and denitrification auxiliary product.
In order to achieve the purpose, the invention adopts the technical scheme that:
a desulfurization and denitrification auxiliary product is prepared by the preparation method of the desulfurization and denitrification auxiliary.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages and effects:
the invention provides a desulfurization and denitrification auxiliary agent capable of being recycled, so that the cost of the desulfurization and denitrification agent is reduced; compared with common sulfoxide substances, such as dimethyl sulfoxide and the like, the sulfoxide compound has the defects of high price, water solubility, difficulty in separation from liquid generated by desulfurization and denitrification and the like, and the sulfoxide compound has low cost, is insoluble in water, and can be recycled after being separated from a final product; in addition, the sulfur-containing organic matters in the sulfur-containing oil product are comprehensively utilized, the additional value of the sulfur-containing organic matters is increased, the sulfur content in the utilized oil product is extremely low, and the atmospheric pollution caused in the use process is reduced.
Drawings
FIG. 1 is a schematic diagram of an apparatus for denitration process applied in this embodiment;
wherein: 1. an emulsifier; 2. an absorption tower; 3. a neutralization reactor; 4. a demulsification separator.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
100ml of kerosene fraction (containing 12.5 mass percent of sulfur) is added into a three-mouth bottle provided with a constant temperature and stirring device, hydrogen peroxide (the molar ratio of hydrogen peroxide to sulfur is 1.1: 1) and acetic acid (the molar ratio of hydrogen peroxide to sulfur is 0.3: 1) are added dropwise to react for 60 minutes, the temperature of the whole process is kept at 70-80 ℃, about 10ml of S-sulfoxide product is obtained after separation and purification, and the residual hydrocarbon obtained after separation can be sold as ultralow sulfur-containing oil product.
Example two:
100ml of diesel oil fraction (containing 10.6 mass percent of sulfur) is added into a three-mouth bottle provided with a constant temperature and stirring device, hydrogen peroxide (the molar ratio of the hydrogen peroxide to the sulfur is 1: 1) and acetic acid (the molar ratio of the hydrogen peroxide to the sulfur is 0.5: 1) are added dropwise to react for 60 minutes, the temperature of the whole process is kept at 70-80 ℃, about 8ml of S-sulfoxide product is obtained after separation and purification, and the residual hydrocarbon obtained after separation can be sold as ultra-low sulfur-containing oil product.
Example three:
taking 600ml of sulfur-containing aviation kerosene acid washing solution, adding 480ml of water, shaking in a separating funnel, standing, layering, separating a lower water layer, washing an obtained upper oil layer (containing 13.78% of sulfur) with water until the pH is neutral, drying and filtering; putting the obtained product into a three-mouth bottle provided with a constant temperature and stirring device, dropwise adding hydrogen peroxide (the molar ratio of hydrogen peroxide to sulfur is 1.1: 1) and acetic acid (the molar ratio of hydrogen peroxide to sulfur is 0.5: 1), reacting for 60 minutes, keeping the temperature of the whole process at 70-80 ℃, separating and purifying to obtain about 15ml of S-sulfoxide product, and obtaining the residual hydrocarbon after separation which can be sold as ultralow sulfur-containing oil products.
The following illustrates the application of the present embodiment in a denitration process:
the application one is as follows:
inputting the waste gas (containing NO200ppm before oxidation) after dust removal, desulfurization and oxidation into an absorption tower from the lower part, adding S-sulfoxide (20 mass percent), span-20 (0.8 mass percent), tween-60 (0.5 mass percent) and the balance of water into an emulsifier to prepare absorption liquid, spraying the absorption liquid into the tower from the upper part of the absorption tower, and generating HNO (nitrogen oxide) in the waste gas in the water2Is combined with S-sulfoxide to become S-sulfoxide as HNO2Absorbing the absorption liquid for 8 hours, discharging the absorption liquid into a neutralization reactor, introducing air into the neutralization reactor, neutralizing the absorption liquid by using sodium hydroxide, feeding the product obtained after neutralization to neutrality (PH 7-8) into a demulsification separator, returning the separated S-sulfoxide at the upper layer to an emulsifier for emulsification and recycling, and feeding the liquid at the lower layer into an absorption product collecting system for collection. The total denitration rate is measured to be 90%.
The application II comprises the following steps:
inputting the waste gas (containing 500ppm of NO before oxidation) after dust removal, desulfurization and oxidation into an absorption tower from the lower part, adding S-sulfoxide (25 mass percent), stearic acid monoglyceride (0.5 mass percent), sodium dodecyl benzene sulfonate (0.7 mass percent) and the balance of water into an emulsifier to prepare absorption liquid, spraying the absorption liquid into the tower from the upper part of the absorption tower, and generating HNO (nitrogen oxide) in the waste gas in the water2Is combined with S-sulfoxide to become S-sulfoxide as HNO2Absorbing the absorbing solution for 5 hours, discharging the absorbing solution into a neutralization reactor, introducing air into the neutralization reactor, neutralizing the absorbing solution by using ammonia water to be nearly neutral (PH 5)Left and right) the product enters a demulsification separator, the separated S-sulfoxide at the upper layer returns to an emulsifier for emulsification and recycling, and the liquid at the lower layer enters an absorption product collecting system for collection. The total denitration rate is measured to be 92%.
The application is as follows:
inputting the waste gas (containing NO800ppm before oxidation) after dust removal, desulfurization and oxidation into an absorption tower from the lower part, adding S-sulfoxide (30 mass percent), oleyl alcohol polyoxyethylene ether (0.8 mass percent), sodium lauryl sulfate (0.9 mass percent) and the balance of water into an emulsifier to prepare absorption liquid, spraying the absorption liquid into the tower from the upper part of the absorption tower, and generating HNO (nitrogen oxide) in the waste gas in the water2Is combined with S-sulfoxide to become S-sulfoxide as HNO2Absorbing the absorption liquid for 4 hours, discharging the absorption liquid into a neutralization reactor, introducing oxygen into the neutralization reactor, neutralizing the absorption liquid by using sodium hydroxide, feeding the product obtained after neutralization to be close to neutrality (about PH 7-8) into a demulsification separator, returning the separated S-sulfoxide at the upper layer to an emulsifier for emulsification and recycling, and feeding the liquid at the lower layer into an absorption product collecting system for collection. The total denitration rate is 88 percent.
Comparative example:
inputting the waste gas (containing NO200ppm before oxidation) after dust removal, desulfurization and oxidation into an absorption tower from the lower part, adding dimethyl sulfoxide (20 mass percent) into a dosing device, preparing the rest water into absorption liquid, spraying the absorption liquid into the tower from the upper part of the absorption tower, and generating HNO (nitrogen oxide) in the waste gas in the water2Is combined with dimethyl sulfoxide to form dimethyl sulfoxide as HNO2Absorbing the absorption liquid for 8 hours, discharging the absorption liquid into a neutralization reactor, introducing air into the neutralization reactor, neutralizing the absorption liquid by using sodium hydroxide, spraying a product after neutralization to neutrality (PH 7-8) into an absorption tower through a proportioning device, discharging the absorption liquid containing the sodium nitrate and the dimethyl sulfoxide when the concentration of the sodium nitrate is higher and higher along with the absorption time and approaches to the saturation concentration because the obtained sodium nitrate and the dimethyl sulfoxide cannot be separated, and reconfiguring a new absorption liquid for absorption. High-concentration sodium nitrate has certain influence on denitration absorption in the later period, and the total denitration rate is measured to be 70%.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A preparation method of a desulfurization and denitrification auxiliary agent is characterized by comprising the following steps: comprises reacting sulfur-containing oil or pickling solution of the sulfur-containing oil, an oxidant and a catalyst to obtain a sulfoxide compound serving as a desulfurization and denitrification auxiliary agent,
wherein: the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product contains more than 5 to 10 percent of sulfur by mass; the molar ratio of the oxidant to the sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.5-2: 1-1.5; the molar ratio of the catalyst to sulfur in the sulfur-containing oil or the pickling solution of the sulfur-containing oil is 0.01-1: 0.8-2.0.
2. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: reacting, separating and purifying the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, an oxidant and a catalyst in sequence:
reaction: mixing and stirring the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, an oxidant and a catalyst, wherein the reaction conditions are as follows: the reaction temperature is 50-100 ℃, the reaction time is 0.3-3 hours, and an intermediate product is obtained,
separation: separating the intermediate product to obtain the sulfoxide compound R1SOR2，
And (3) purification: after the reaction is finished, the three phases of hydrocarbon, sulfoxide and water are separated, and after the separation of layers, the sulfoxide is washed to be neutral and then dried, so that the sulfoxide compound with the purity of 80-99% is obtained.
3. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: the effective sulfide in the pickling solution of the sulfur-containing oil product or the sulfur-containing oil product comprises thioether.
4. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: the sulfur-containing oil product is sulfur-containing crude oil fraction.
5. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: when the pickling solution containing the sulfur oil product is used, the pickling solution containing the sulfur oil product is pretreated, and the steps of sequentially adding water into the pickling solution containing the sulfur oil product are sequentially included, wherein: the ratio of the pickling solution of the sulfur-containing oil product to water is 1:0.5-2.0, the two are mixed and then are subjected to standing, layering, primary filtering, water washing, drying and secondary filtering, and the pretreatment is finished, wherein: washing with water until the pH value is neutral.
6. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: the oxidant is hydrogen peroxide and periodic acid; the catalyst is acetic acid or acetic anhydride.
7. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: the stock material does not contain an alkali-containing agent.
8. The preparation method of the desulfurization and denitrification assistant according to claim 1, which is characterized in that: the molar ratio of the oxidant to the sulfur-containing oil product or the sulfur in the pickling solution of the sulfur-containing oil product is 0.8-1.2: 1-1.2; the molar ratio of the catalyst to sulfur in the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product is 0.2-0.6: 1-1.3.
9. The preparation method of the desulfurization and denitrification assistant according to claim 8, wherein the preparation method comprises the following steps: the reaction temperature of the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, the oxidant and the catalyst is 70-80 ℃; the reaction time of the sulfur-containing oil product or the pickling solution of the sulfur-containing oil product, the oxidant and the catalyst is 0.5 to 1.2 hours.
10. A desulfurization and denitrification auxiliary agent product is characterized in that: the desulfurization and denitrification additive is prepared by the preparation method of the desulfurization and denitrification additive as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094560.7A CN111097257A (en) | 2019-11-11 | 2019-11-11 | Preparation method of desulfurization and denitrification auxiliary agent and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911094560.7A CN111097257A (en) | 2019-11-11 | 2019-11-11 | Preparation method of desulfurization and denitrification auxiliary agent and product thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111097257A true CN111097257A (en) | 2020-05-05 |
Family
ID=70420755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911094560.7A Pending CN111097257A (en) | 2019-11-11 | 2019-11-11 | Preparation method of desulfurization and denitrification auxiliary agent and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111097257A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803992A (en) * | 2005-12-22 | 2006-07-19 | 中国石油大学(华东) | Catalyst for oxidation sweetening of light oil and preparation method thereof |
| CN101063042A (en) * | 2006-04-27 | 2007-10-31 | 中国石油化工股份有限公司 | Light-end products oxidation desulfurizing and deodorizing method |
| CN104190235A (en) * | 2014-07-25 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Regenerable oily denitration absorption liquid used for absorbing nitric oxides in smoke as well as preparation method and application of absorption liquid |
| US20170197180A1 (en) * | 2014-06-05 | 2017-07-13 | Meihua ZOU | Process and device for desulphurization and denitration of flue gas |
| CN110075702A (en) * | 2018-01-25 | 2019-08-02 | 斗山重工业建设有限公司 | The device of nitrogen oxides (NOx) in scavenging and oxysulfide (SOx) simultaneously |
-
2019
- 2019-11-11 CN CN201911094560.7A patent/CN111097257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1803992A (en) * | 2005-12-22 | 2006-07-19 | 中国石油大学(华东) | Catalyst for oxidation sweetening of light oil and preparation method thereof |
| CN101063042A (en) * | 2006-04-27 | 2007-10-31 | 中国石油化工股份有限公司 | Light-end products oxidation desulfurizing and deodorizing method |
| US20170197180A1 (en) * | 2014-06-05 | 2017-07-13 | Meihua ZOU | Process and device for desulphurization and denitration of flue gas |
| CN104190235A (en) * | 2014-07-25 | 2014-12-10 | 浙江天蓝环保技术股份有限公司 | Regenerable oily denitration absorption liquid used for absorbing nitric oxides in smoke as well as preparation method and application of absorption liquid |
| CN110075702A (en) * | 2018-01-25 | 2019-08-02 | 斗山重工业建设有限公司 | The device of nitrogen oxides (NOx) in scavenging and oxysulfide (SOx) simultaneously |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103463978B (en) | Based on the device and method of catalytic oxidation of hydrogen peroxide flue gas and desulfurizing and denitrifying | |
| CN103055694B (en) | A kind of method utilizing organic exhaust gas to carry out denitrating flue gas | |
| CN101844025B (en) | Organic waste gas microemulsion absorbent, and preparation method and use thereof | |
| CA3040643C (en) | Acid gas treatment | |
| CN105148928B (en) | Water resistant sulfur resistive type denitrating flue gas powder catalyst, preparation method and its usage | |
| CN102989301B (en) | Flue gas wet reduction integrated desulfurization, denitrification, harmless treatment and resource utilization method | |
| CA1072723A (en) | Method of removing sulfur dioxide from flue gases | |
| CN110052119B (en) | Method for absorbing and concentrating hydrogen sulfide in industrial acid gas by organic solvent and utilizing resources | |
| CN102527224A (en) | Method and device for removing sulfur dioxide and nitrogen oxides from flue gas/ waste gas | |
| CN104190235A (en) | Regenerable oily denitration absorption liquid used for absorbing nitric oxides in smoke as well as preparation method and application of absorption liquid | |
| CN103949144A (en) | Method and device for purifying flue gas containing sulfur dioxide | |
| CN1139422C (en) | Wet urea additive process for simultanously desulfurizing and denitrification | |
| CN105381699B (en) | A kind of hydrogen peroxide oxidation joint amino wet desulphurization method of denitration and its device | |
| CN104524935A (en) | Single-tower type double-circulation sprinkling composite absorption device and method | |
| CN102327735A (en) | Hydrogen peroxide-based flue-gas desulfurizing and denitrifying system and method | |
| PT2144690E (en) | Method for purifying flue gases from incinerators and then producing urea | |
| CN1192814C (en) | Method for urea catalyst simultaneously processing flue gas and desulfurizing denitrification | |
| CN105268294A (en) | Double-tower double-circulation wet oxidation and catalysis combined removal system and method | |
| CN204247052U (en) | Single tower type double-cycle spray composite absorption device | |
| CN111097257A (en) | Preparation method of desulfurization and denitrification auxiliary agent and product thereof | |
| CN111097258A (en) | Denitration process of oily auxiliary agent | |
| CN101502747A (en) | Flue gas integrated desulphurization and denitrification catalyst | |
| CN202446977U (en) | Device capable of simultaneously removing sulfur dioxide and nitrogen oxides from flue gas/exhaust gas | |
| CN110813030A (en) | Desulfurization and denitrification process for oily auxiliary agent | |
| CN115228269B (en) | Water-soluble biomass SNCR (selective non-catalytic reduction) denitration agent as well as preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200505 |