CN111632490A - Treatment method for reducing carbon dioxide emission - Google Patents
Treatment method for reducing carbon dioxide emission Download PDFInfo
- Publication number
- CN111632490A CN111632490A CN202010464628.2A CN202010464628A CN111632490A CN 111632490 A CN111632490 A CN 111632490A CN 202010464628 A CN202010464628 A CN 202010464628A CN 111632490 A CN111632490 A CN 111632490A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- gas
- reaction
- treatment
- waste gas
- 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
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 132
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 66
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 66
- 238000011282 treatment Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 51
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 239000002912 waste gas Substances 0.000 claims abstract description 39
- 230000003647 oxidation Effects 0.000 claims abstract description 34
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 34
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 22
- 230000023556 desulfurization Effects 0.000 claims abstract description 22
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 18
- PFUVRDFDKPNGAV-UHFFFAOYSA-N sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 claims abstract description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 78
- 239000007789 gas Substances 0.000 claims description 47
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 229910001868 water Inorganic materials 0.000 claims description 22
- 239000013078 crystal Substances 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000003054 catalyst Substances 0.000 claims description 12
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 9
- 239000012495 reaction gas Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- SYBFKRWZBUQDGU-UHFFFAOYSA-N copper manganese(2+) oxygen(2-) Chemical compound [O--].[O--].[Mn++].[Cu++] SYBFKRWZBUQDGU-UHFFFAOYSA-N 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 5
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 4
- 239000002244 precipitate Substances 0.000 claims description 4
- 239000000376 reactant Substances 0.000 claims description 4
- 238000004062 sedimentation Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- JYYOBHFYCIDXHH-UHFFFAOYSA-N carbonic acid;hydrate Chemical compound O.OC(O)=O JYYOBHFYCIDXHH-UHFFFAOYSA-N 0.000 claims description 3
- 238000012824 chemical production Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 claims description 3
- 239000002351 wastewater Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/864—Removing carbon monoxide or hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/50—Carbon dioxide
- C01B32/55—Solidifying
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/07—Preparation from the hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a treatment method for reducing carbon dioxide emission, which comprises the following steps: preparing raw reaction materials, preparing reaction materials for treating the waste gas with the carbon dioxide, preparing corresponding reaction containers, putting different reaction materials into different reaction containers, connecting the reaction containers according to a certain sequence, collecting the waste gas with the carbon dioxide by using a collecting device after step S1 is finished, and guiding the waste gas with the carbon dioxide into a desulfurization and denitration device by using a guiding structure. The invention has the beneficial effects that: utilize oxidation treatment many times for carbon monoxide turns into carbon dioxide, reduces the pollution of waste gas, adopts sodium hydroxide, sodium peroxide to remove carbon dioxide simultaneously, makes whole processing more thorough, and the resultant in the processing also can be used for various industrial production, has both reduced the emission of carbon dioxide, has reduced the treatment cost again.
Description
Technical Field
The invention relates to the field of waste gas treatment, in particular to a treatment method for reducing carbon dioxide emission.
Background
The greenhouse effect, also known as the greenhouse effect, is commonly known as the atmospheric heat preservation effect. The atmosphere can make the short wave radiation of the sun reach the ground, but a large amount of long wave thermal radiation emitted to the outside after the ground surface is heated is absorbed by the atmosphere, so that the temperature of the ground surface and the lower atmosphere is increased, and the effect of the greenhouse is similar to that of a greenhouse for cultivating crops, so the greenhouse effect is called. Since the industrial revolution, greenhouse gases with strong heat absorption, such as carbon dioxide, discharged into the atmosphere by human beings, have increased year by year, and the greenhouse effect of the atmosphere has also increased. With the progress of science and technology, various industries are rapidly developed, the global warming problem is increasingly serious due to the emission of greenhouse gases by the industries, and the global temperature is continuously increased. In order to reduce the global warming problem, the carbon dioxide content in the industrial waste gas needs to be reduced; in the existing method for reducing the emission of carbon dioxide, the fuel combustion effect is improved, and the emission is reduced by matching with subsequent treatment, but the method has higher cost and limited reduced emission, and has certain limitation when in use.
Disclosure of Invention
The invention mainly aims to provide a treatment method for reducing carbon dioxide emission, which can effectively solve the problem that the service life is influenced by the common fire resistance and low compactness in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a treatment method for reducing carbon dioxide emission comprises the following steps:
s1, preparing reaction materials, namely preparing reaction materials for treating the waste gas with the carbon dioxide, preparing corresponding reaction containers, putting different reaction materials into different reaction containers, and connecting the reaction containers according to a certain sequence;
s2, collecting the waste gas containing the carbon dioxide by using a collecting device after the step S1 is completed, and guiding the waste gas containing the carbon dioxide into a desulfurization and denitration device by using a guiding structure;
s3, conducting desulfurization and denitrification treatment on the waste gas, and after the waste gas is guided into the desulfurization and denitrification device, treating nitrogen oxides and sulfur oxides in the waste gas by using a treating agent in the desulfurization and denitrification device to remove nitrogen-containing and sulfur-containing substances in the waste gas;
s4, carrying out primary oxidation treatment on the waste gas, introducing the gas subjected to desulfurization and denitrification into an oxidation device after the step S3 is completed, and carrying out primary oxidation treatment on the gas by the oxidation device so as to oxidize carbon monoxide in the gas into carbon dioxide;
s5, carrying out secondary oxidation treatment on the waste gas, and after the step S4 is finished, carrying out secondary oxidation treatment on the gas subjected to the primary oxidation treatment to completely convert the residual carbon monoxide in the gas into carbon dioxide until the reacted gas is obtained;
s6, performing temperature reduction treatment, namely introducing the gas obtained after the step S5 into a cooling device, and performing temperature reduction treatment on the gas by using the cooling device to reduce the temperature of the gas to a normal temperature state;
s7, removing carbon dioxide in the waste gas, after the step S6 is completed, introducing the waste gas subjected to temperature reduction treatment into a reaction tank, removing the carbon dioxide by using a sodium hydroxide aqueous solution in the reaction tank, and reacting the sodium hydroxide with the carbon dioxide to generate sodium carbonate, sodium bicarbonate, water and reaction gas meeting the emission standard;
s8, removing the reaction gas, discharging the dischargeable gas generated after the reaction after the completion of the step S7, and introducing the remaining liquid into the processing device;
s9, treating the wastewater, treating the liquid obtained in the step S6, adding sodium hydroxide into the treatment device, reacting the sodium hydroxide with sodium bicarbonate in the liquid to generate sodium carbonate, water and a small amount of carbon dioxide, introducing the carbon dioxide into the post-treatment device for treatment, and introducing the mixed liquid of the sodium carbonate and the water into a sedimentation tank;
s10, precipitating, namely precipitating the mixed liquid obtained in the step S9 to obtain water and sodium carbonate crystals;
s11, recycling the precipitate, discharging water into a corresponding device after the step S10 is finished, and recycling the precipitated sodium carbonate crystal;
and S12, finishing the treatment, and finishing the whole reaction process after the step S11 is finished.
In the step S1, the reaction material includes a desulfurization and denitrification material, a sodium hydroxide aqueous solution, a copper-manganese oxide catalyst, and a Pd-activated carbon catalyst, and the reaction vessel includes a desulfurization and denitrification apparatus, an oxidation apparatus, a temperature reduction apparatus, a reaction tank, and a settling tank.
In step S4, the exhaust gas is subjected to a first oxidation treatment by using a copper-manganese oxide catalyst to oxidize carbon monoxide in the exhaust gas into carbon dioxide, thereby achieving the purpose of reducing carbon monoxide.
In step S5, the Pd-activated carbon catalyst is used to perform a second oxidation treatment on the exhaust gas, so as to convert the carbon monoxide remaining in the gas after the first oxidation treatment into carbon dioxide, so that all the carbon monoxide in the treated gas is oxidized into carbon dioxide.
And in the step S6, cooling is carried out for 3-5 minutes.
In the reactant generated in the step S7, sodium carbonate is dissolved in water, sodium bicarbonate is partially dissolved in water, and the reaction gas meets the emission standard.
In step S9, a small amount of the carbon dioxide generated in step S7 is reacted with sodium peroxide to generate sodium carbonate and oxygen by the reaction of the sodium peroxide with the carbon dioxide, the oxygen is directly removed, and the sodium carbonate crystals are recovered and reused.
In step S10, the temperature of the solution containing sodium carbonate is lowered to separate out sodium carbonate in water, thereby obtaining sodium carbonate crystals.
In the step S10, the sodium carbonate crystals are recycled, and the sodium carbonate can be used for chemical production.
Compared with the prior art, the invention has the following beneficial effects: by adopting the method, the carbon monoxide is converted into the carbon dioxide by utilizing multiple oxidation treatments, the pollution of waste gas is reduced, the carbon dioxide is removed by adopting the sodium hydroxide and the sodium peroxide, the whole treatment is more thorough, and the product in the treatment can also be used for various industrial productions, thereby reducing the emission of the carbon dioxide and the treatment cost.
Drawings
FIG. 1 is a schematic view of a process flow of a treatment method for reducing carbon dioxide emissions according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
The treatment method for reducing the emission of carbon dioxide shown in figure 1 comprises the following steps:
s1, preparing reaction materials, namely preparing reaction materials for treating the waste gas with the carbon dioxide, preparing corresponding reaction containers, putting different reaction materials into different reaction containers, and connecting the reaction containers according to a certain sequence;
s2, collecting the waste gas containing the carbon dioxide by using a collecting device after the step S1 is completed, and guiding the waste gas containing the carbon dioxide into a desulfurization and denitration device by using a guiding structure;
s3, conducting desulfurization and denitrification treatment on the waste gas, and after the waste gas is guided into the desulfurization and denitrification device, treating nitrogen oxides and sulfur oxides in the waste gas by using a treating agent in the desulfurization and denitrification device to remove nitrogen-containing and sulfur-containing substances in the waste gas;
s4, carrying out primary oxidation treatment on the waste gas, introducing the gas subjected to desulfurization and denitrification into an oxidation device after the step S3 is completed, and carrying out primary oxidation treatment on the gas by the oxidation device so as to oxidize carbon monoxide in the gas into carbon dioxide;
s5, carrying out secondary oxidation treatment on the waste gas, and after the step S4 is finished, carrying out secondary oxidation treatment on the gas subjected to the primary oxidation treatment to completely convert the residual carbon monoxide in the gas into carbon dioxide until the reacted gas is obtained;
s6, performing temperature reduction treatment, namely introducing the gas obtained after the step S5 into a cooling device, and performing temperature reduction treatment on the gas by using the cooling device to reduce the temperature of the gas to a normal temperature state;
s7, removing carbon dioxide in the waste gas, after the step S6 is completed, introducing the waste gas subjected to temperature reduction treatment into a reaction tank, removing the carbon dioxide by using a sodium hydroxide aqueous solution in the reaction tank, and reacting the sodium hydroxide with the carbon dioxide to generate sodium carbonate, sodium bicarbonate, water and reaction gas meeting the emission standard;
s8, removing the reaction gas, discharging the dischargeable gas generated after the reaction after the completion of the step S7, and introducing the remaining liquid into the processing device;
s9, treating the wastewater, treating the liquid obtained in the step S6, adding sodium hydroxide into the treatment device, reacting the sodium hydroxide with sodium bicarbonate in the liquid to generate sodium carbonate, water and a small amount of carbon dioxide, introducing the carbon dioxide into the post-treatment device for treatment, and introducing the mixed liquid of the sodium carbonate and the water into a sedimentation tank;
s10, precipitating, namely precipitating the mixed liquid obtained in the step S9 to obtain water and sodium carbonate crystals;
s11, recycling the precipitate, discharging water into a corresponding device after the step S10 is finished, and recycling the precipitated sodium carbonate crystal;
and S12, finishing the treatment, and finishing the whole reaction process after the step S11 is finished.
In step S1, the reaction materials include a desulfurization and denitrification material, an aqueous sodium hydroxide solution, a copper-manganese oxide catalyst, and a Pd-activated carbon catalyst, and the reaction vessel includes a desulfurization and denitrification device, an oxidation device, a cooling device, a reaction tank, and a settling tank; in step S4, performing a first oxidation treatment on the exhaust gas by using a copper-manganese oxide catalyst to oxidize carbon monoxide in the exhaust gas into carbon dioxide, thereby achieving the purpose of reducing carbon monoxide; in step S5, performing a second oxidation treatment on the exhaust gas by using a Pd-activated carbon catalyst, and converting carbon monoxide remaining in the gas after the first oxidation treatment into carbon dioxide, so that all carbon monoxide in the treated gas is oxidized into carbon dioxide; cooling in step S6 for 3-5 min; in the reactant generated in the step S7, sodium carbonate is dissolved in water, sodium bicarbonate is partially dissolved in water, and the reaction gas meets the emission standard; in step S9, reacting a small amount of the carbon dioxide generated in step S7 with sodium peroxide to generate sodium carbonate and oxygen by the reaction of the sodium peroxide with the carbon dioxide, directly removing the oxygen, and recycling the sodium carbonate crystals; in step S10, the temperature of the solution containing sodium carbonate is lowered to separate out sodium carbonate in water to obtain sodium carbonate crystals; in step S10, the sodium carbonate crystals are recycled, and the sodium carbonate can be used for chemical production.
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 therefrom are within the scope of the invention.
Claims (9)
1. A treatment method for reducing carbon dioxide emission is characterized by comprising the following steps:
s1, preparing reaction materials, namely preparing reaction materials for treating the waste gas with the carbon dioxide, preparing corresponding reaction containers, putting different reaction materials into different reaction containers, and connecting the reaction containers according to a certain sequence;
s2, collecting the waste gas containing the carbon dioxide by using a collecting device after the step S1 is completed, and guiding the waste gas containing the carbon dioxide into a desulfurization and denitration device by using a guiding structure;
s3, conducting desulfurization and denitrification treatment on the waste gas, and after the waste gas is guided into the desulfurization and denitrification device, treating nitrogen oxides and sulfur oxides in the waste gas by using a treating agent in the desulfurization and denitrification device to remove nitrogen-containing and sulfur-containing substances in the waste gas;
s4, carrying out primary oxidation treatment on the waste gas, introducing the gas subjected to desulfurization and denitrification into an oxidation device after the step S3 is completed, and carrying out primary oxidation treatment on the gas by the oxidation device so as to oxidize carbon monoxide in the gas into carbon dioxide;
s5, carrying out secondary oxidation treatment on the waste gas, and after the step S4 is finished, carrying out secondary oxidation treatment on the gas subjected to the primary oxidation treatment to completely convert the residual carbon monoxide in the gas into carbon dioxide until the reacted gas is obtained;
s6, performing temperature reduction treatment, namely introducing the gas obtained after the step S5 into a cooling device, and performing temperature reduction treatment on the gas by using the cooling device to reduce the temperature of the gas to a normal temperature state;
s7, removing carbon dioxide in the waste gas, after the step S6 is completed, introducing the waste gas subjected to temperature reduction treatment into a reaction tank, removing the carbon dioxide by using a sodium hydroxide aqueous solution in the reaction tank, and reacting the sodium hydroxide with the carbon dioxide to generate sodium carbonate, sodium bicarbonate, water and reaction gas meeting the emission standard;
s8, removing the reaction gas, discharging the dischargeable gas generated after the reaction after the completion of the step S7, and introducing the remaining liquid into the processing device;
s9, treating the wastewater, treating the liquid obtained in the step S6, adding sodium hydroxide into the treatment device, reacting the sodium hydroxide with sodium bicarbonate in the liquid to generate sodium carbonate, water and a small amount of carbon dioxide, introducing the carbon dioxide into the post-treatment device for treatment, and introducing the mixed liquid of the sodium carbonate and the water into a sedimentation tank;
s10, precipitating, namely precipitating the mixed liquid obtained in the step S9 to obtain water and sodium carbonate crystals;
s11, recycling the precipitate, discharging water into a corresponding device after the step S10 is finished, and recycling the precipitated sodium carbonate crystal;
and S12, finishing the treatment, and finishing the whole reaction process after the step S11 is finished.
2. The method as claimed in claim 1, wherein in step S1, the reaction material includes desulfurization and denitrification material, aqueous solution of sodium hydroxide, copper manganese oxide catalyst and Pd-activated carbon catalyst, and the reaction vessel includes desulfurization and denitrification device, oxidation device, temperature reduction device, reaction tank and sedimentation tank.
3. The method as claimed in claim 1, wherein in step S4, the exhaust gas is first oxidized by copper-manganese oxide catalyst to oxidize carbon monoxide in the exhaust gas into carbon dioxide, thereby reducing carbon monoxide.
4. The method as claimed in claim 1, wherein in step S5, the exhaust gas is subjected to a second oxidation treatment with a Pd-activated carbon catalyst to convert the carbon monoxide in the gas after the first oxidation treatment into carbon dioxide, so that all the carbon monoxide in the treated gas is oxidized into carbon dioxide.
5. The method as claimed in claim 1, wherein the step S6 is performed to reduce the temperature for 3-5 minutes.
6. The method as claimed in claim 1, wherein the reactants generated in step S7 include sodium carbonate and sodium bicarbonate, and the reactant gas meets the emission standard.
7. The method as claimed in claim 1, wherein in step S9, the small amount of carbon dioxide generated in step S7 is reacted with sodium peroxide to generate sodium carbonate and oxygen by the reaction of sodium peroxide with carbon dioxide, the oxygen is directly removed, and the sodium carbonate crystals are recycled.
8. The method as claimed in claim 2, wherein in step S10, the temperature of the solution containing sodium carbonate is lowered to make sodium carbonate precipitate in water, and obtain sodium carbonate crystals.
9. The method as claimed in claim 1, wherein in step S10, sodium carbonate crystals are recycled, and sodium carbonate can be used in chemical production.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010464628.2A CN111632490A (en) | 2020-05-27 | 2020-05-27 | Treatment method for reducing carbon dioxide emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010464628.2A CN111632490A (en) | 2020-05-27 | 2020-05-27 | Treatment method for reducing carbon dioxide emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111632490A true CN111632490A (en) | 2020-09-08 |
Family
ID=72324465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010464628.2A Pending CN111632490A (en) | 2020-05-27 | 2020-05-27 | Treatment method for reducing carbon dioxide emission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111632490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230852A (en) * | 2021-05-19 | 2021-08-10 | 北京首钢朗泽新能源科技有限公司 | Carbon dioxide emission reduction system and method and system for preparing fuel ethanol by biological method |
| CN113280370A (en) * | 2021-06-28 | 2021-08-20 | 嘉兴志盛厨具制造有限公司 | Energy-saving environment-friendly gas Chinese food stove |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014012808A1 (en) * | 2012-07-17 | 2014-01-23 | Siemens Aktiengesellschaft | Scrubbing solution for absorption of carbon dioxide and method for accelerating the absorption by germanium dioxide |
| CN107673352A (en) * | 2010-07-08 | 2018-02-09 | 斯凯约尼克公司 | It is related to the carbon dioxide sequestration of the heat dissipating method based on two kinds of salt |
| CN207401344U (en) * | 2017-11-01 | 2018-05-25 | 沈祖达 | Carbon dioxide recovery utilizes device in a kind of tail gas from incinerator |
| CN109126450A (en) * | 2018-10-30 | 2019-01-04 | 晋江知保企业管理咨询有限公司 | Industrial carbon monoxide emission-control equipment |
| CN110141947A (en) * | 2019-05-27 | 2019-08-20 | 中冶焦耐(大连)工程技术有限公司 | Coke oven flue gas carbon dioxide emission reduction process and system |
-
2020
- 2020-05-27 CN CN202010464628.2A patent/CN111632490A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107673352A (en) * | 2010-07-08 | 2018-02-09 | 斯凯约尼克公司 | It is related to the carbon dioxide sequestration of the heat dissipating method based on two kinds of salt |
| WO2014012808A1 (en) * | 2012-07-17 | 2014-01-23 | Siemens Aktiengesellschaft | Scrubbing solution for absorption of carbon dioxide and method for accelerating the absorption by germanium dioxide |
| CN207401344U (en) * | 2017-11-01 | 2018-05-25 | 沈祖达 | Carbon dioxide recovery utilizes device in a kind of tail gas from incinerator |
| CN109126450A (en) * | 2018-10-30 | 2019-01-04 | 晋江知保企业管理咨询有限公司 | Industrial carbon monoxide emission-control equipment |
| CN110141947A (en) * | 2019-05-27 | 2019-08-20 | 中冶焦耐(大连)工程技术有限公司 | Coke oven flue gas carbon dioxide emission reduction process and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230852A (en) * | 2021-05-19 | 2021-08-10 | 北京首钢朗泽新能源科技有限公司 | Carbon dioxide emission reduction system and method and system for preparing fuel ethanol by biological method |
| CN113280370A (en) * | 2021-06-28 | 2021-08-20 | 嘉兴志盛厨具制造有限公司 | Energy-saving environment-friendly gas Chinese food stove |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111632490A (en) | Treatment method for reducing carbon dioxide emission | |
| CN106268296A (en) | A kind of flue gas processing method of the lanthanio perovskite composite oxide catalysis reduction simultaneous SO_2 and NO removal of doping | |
| US20210245142A1 (en) | Method for producing hollow activated carbon nanofiber for activating peroxymonosulfate, catalyst for purifying water, and method for purifying water | |
| CN103055694A (en) | Method for flue gas denitrification by organic waste gas | |
| CN106277129B (en) | A kind of waste acid treatment method | |
| JPH02172590A (en) | Process for removing nitrite and nitrate from aqueous solution without leaving residue | |
| CN110152671A (en) | A kind of metal composite oxide diatomite catalyst and its preparation method and application | |
| CN109110955A (en) | A kind of wastewater treatment method | |
| CN102794098A (en) | Flue gas wet-type oxidation denitration and resource utilization method | |
| CN100463847C (en) | Method for preparing vitriol from flue gas | |
| CN108975503B (en) | Photocatalytic simultaneous removal of nitrite and ammonia nitrogen from sewage | |
| CN108975502B (en) | Method for simultaneous removal of nitrite and ammonia nitrogen from sewage by photocatalysis | |
| CN217613936U (en) | Carbonyl sulfide pretreatment system in ferroalloy tail gas for fermentation | |
| CN114906919B (en) | Environment-friendly method for removing ammonia nitrogen in wastewater | |
| WO2022230861A1 (en) | Method for processing waste lithium ion battery | |
| CN102092689A (en) | Method for cyclically producing sulfuric acids by utilizing tail gases produced by sulfuric acid production process | |
| JP2001158622A (en) | Method of treating organoarsenic compound | |
| CN108993505A (en) | Carbon light Fenton catalyst for loading metal tire, preparation and application thereof | |
| CN115178287A (en) | Preparation method of nitrogen-doped flower-shaped cobalt-manganese composite oxide and method for degrading antibiotic wastewater | |
| CN110090386B (en) | A kind of method of low temperature catalytic oxidation of sodium cyanide | |
| CN113289467B (en) | Treatment method of flue gas produced by metal catalyst | |
| CN113603111A (en) | 4A zeolite with adjustable oxygen vacancy content and its preparation method and application | |
| CN111330436A (en) | Preparation method and device of deodorizing filter material | |
| JPS5834080A (en) | Treatment of acid-digested waste liquid | |
| CN113860385B (en) | Recycling method of solid waste of ferro-manganese desulfurizing agent |
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 |
Application publication date: 20200908 |
|
| RJ01 | Rejection of invention patent application after publication |