CN114433026A - SO (SO)2Adsorbing material and preparation method thereof - Google Patents
SO (SO)2Adsorbing material and preparation method thereof Download PDFInfo
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- CN114433026A CN114433026A CN202011198075.7A CN202011198075A CN114433026A CN 114433026 A CN114433026 A CN 114433026A CN 202011198075 A CN202011198075 A CN 202011198075A CN 114433026 A CN114433026 A CN 114433026A
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- organic framework
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- sodium sulfite
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- 239000000463 material Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title claims description 8
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 42
- 238000001179 sorption measurement Methods 0.000 claims abstract description 42
- 239000012621 metal-organic framework Substances 0.000 claims abstract description 31
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 21
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims abstract description 17
- 238000011068 loading method Methods 0.000 claims abstract description 17
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims abstract description 14
- 239000003463 adsorbent Substances 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 claims abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 14
- 238000003763 carbonization Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 239000011148 porous material Substances 0.000 claims description 10
- 238000005470 impregnation Methods 0.000 claims description 9
- 239000013094 zinc-based metal-organic framework Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000013132 MOF-5 Substances 0.000 claims description 5
- 239000013118 MOF-74-type framework Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- BDOYKFSQFYNPKF-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]acetic acid;sodium Chemical compound [Na].[Na].OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O BDOYKFSQFYNPKF-UHFFFAOYSA-N 0.000 abstract 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 11
- 238000006477 desulfuration reaction Methods 0.000 description 9
- 230000023556 desulfurization Effects 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002791 soaking Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000010000 carbonizing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003795 desorption Methods 0.000 description 2
- 239000013384 organic framework Substances 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229960001484 edetic acid Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000013110 organic ligand Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/223—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material containing metals, e.g. organo-metallic compounds, coordination complexes
- B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
- B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
-
- 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
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to an SO2The adsorbing material is prepared by loading sodium sulfite and disodium ethylene diamine tetraacetate on a carbonized metal-organic framework material, wherein the loading amount of the sodium sulfite is not higher than 10 percent by mass, preferably 2 to 7 percent by mass; the load capacity of the ethylene diamine tetraacetic acid disodium is not higher than 5%, and preferably 1% -3%. The invention relates to SO obtained by modifying MOFs material and loading sodium sulfite and disodium ethylene diamine tetraacetate2Adsorbent material with higher SO2Adsorption capacity and selectivity, especially for water, oxygen and SO2Selective adsorption of the exhaust gas.
Description
Technical Field
The invention belongs to the technical field of sulfur-containing flue gas treatment, and particularly relates to SO2An adsorbing material and a preparation method thereof.
Background
Fossil fuels (coal, petroleum, etc.) contain a large amount of sulfur, and direct combustion results in high SO content in flue gas2。SO2The excessive discharge of (2) causes a series of environmental problems, and the formed acid rain and photochemical smog bring serious harm to the production and the life of human beings. Currently, widely used SO2The removal method is divided into a wet desulfurization technique and a dry desulfurization techniqueAnd (4) desulfurization technology. The wet desulfurization is mainly characterized in that alkali liquor is contacted with flue gas, and SO is generated through chemical reaction2The solution is converted into sulfite and sulfate to be dissolved in water, and the solution containing sulfate is further treated to achieve the aim of desulfurization. The dry desulfurization mainly utilizes the adsorption property of porous materials to remove SO2Separated from the waste gas, desorbed and regenerated after saturated adsorption or oxidized to be converted into SO3And (4) eluting.
In the wet desulfurization technique applied in industry, SO can be absorbed by sodium sulfite solution2To realize the removal of SO from the exhaust gas2. The dry flue gas desulfurization method widely used in industry uses activated carbon material as an adsorption oxidant to remove SO through the processes of adsorption-oxidation-sulfation-alkali washing and the like2. SO in S-Zorb flue gas in petroleum refining industry2Concentration of>1%, SO is more suitable2And desorbing and recovering to prepare sulfur after adsorption. The adsorbing material applied in the traditional desulfurization process has oxidation performance and is easy to remove SO2Oxidation to SO3Is not suitable for adsorbing-desorbing and recycling SO in S-Zorb flue gas2. In addition, O in S-Zorb flue gas2The content of SO is low (generally the volume concentration is less than 0.1 percent), SO that the use of SO is not suitable2Oxidation to SO3The processing method (2).
The metal organic framework Materials (MOFs) are organic macromolecular porous materials, metal and organic ligands are combined into the macromolecular porous materials with infinite topological structures through coordination, and the macromolecular porous materials have abundant microporous structures and high specific surface areas. But the metal organic framework material takes metal as a central node, contains metal oxide and adsorbs SO2While easily generating chemical reaction, is suitable for low-concentration SO2Chemical adsorption of the gas. And when water and oxygen exist in the waste gas, the adsorption effect is reduced.
Disclosure of Invention
Aiming at the defects of the existing adsorbing material, the invention provides SO2An adsorbing material and a preparation method thereof. The invention relates to SO obtained by modifying MOFs material and loading sodium sulfite and disodium ethylene diamine tetraacetate2Adsorbent material with higher SO2Adsorption capacity and selectivityParticularly for use with a gas containing water, oxygen and SO2Selective adsorption of the exhaust gas.
SO provided by the invention2The adsorption material is prepared by loading sodium sulfite and disodium ethylene diamine tetraacetate on a carbonized metal organic framework material, wherein the loading amount of the sodium sulfite is not higher than 10 percent by mass, and preferably 2 to 7 percent by mass; the load capacity of the disodium ethylene diamine tetraacetate is not higher than 5%, and is preferably 1-3%.
In the adsorption material of the invention, the metal organic framework material is zinc-based metal organic framework material, such as at least one of MOFs series, specifically at least one of MOF-5, MOF-74 and the like. Further, the specific surface area of the metal-organic framework material is 800-1800m2Per g, pore volume of 0.8-1.2cm3/g。
In the adsorbing material, the carbonized metal organic framework material is carbonized at 900-1150 ℃ in the presence of nitrogen, and the carbonization time is 5-10 hours. The metal carbide organic framework material does not contain metal elements.
The invention also provides the SO2The preparation method of the adsorbing material comprises the following steps:
(1) taking a zinc-based metal organic framework material as a matrix, and carrying out carbonization treatment at a certain temperature to obtain a carbonized metal organic framework material;
(2) preparing sodium sulfite and disodium ethylene diamine tetraacetate impregnation liquid, impregnating the carbonized metal organic framework material in the impregnation liquid, and drying after the impregnation to obtain SO2Adsorbing the material.
In the preparation method of the invention, the metal organic framework material is zinc-based metal organic framework material, such as at least one of MOFs series, specifically at least one of MOF-5, MOF-74 and the like. Further, the specific surface area of the metal-organic framework material is 800-1800m2Per g, pore volume of 0.8-1.2cm3/g。
In the invention, the carbonization conditions are as follows: in the presence of nitrogen, the carbonization temperature is 900-1150 ℃, and the carbonization time is 5-10 hours. The metal carbide organic framework material hardly contains metal elements.
In the invention, in the impregnation liquid in the step (2), the mass concentration of sodium sulfite is less than 6%, preferably 1.2-4%, and the mass concentration of disodium ethylene diamine tetraacetate is 1-10%.
In the invention, the dipping time is 1-5 hours. And after the impregnation is finished, drying at 100-120 ℃ for 6-10 hours in the presence of nitrogen.
SO according to the invention2Use of an adsorbent material containing water, oxygen and SO2SO in exhaust gas2Selective adsorption of (2), wherein SO2The volume concentration of (b) is more than 1%, preferably 1% to 5%. The adsorption conditions were: the adsorption temperature is 5-25 ℃, and the space velocity of the adsorption volume is 100-1000 h-1The adsorption pressure is 0.1-0.3 MPa.
Compared with the prior art, the invention has the following advantages:
(1) the invention relates to SO obtained by modifying MOFs material and loading sodium sulfite and disodium ethylene diamine tetraacetate2Adsorbent material with higher SO2Adsorption capacity and selectivity, especially for water, oxygen and O2SO in the exhaust gas of (1)2And (4) selective adsorption.
(2) In the time of penetration, SO2The adsorption capacity of the composite material is 130-265 mg/g, which is more than 2.5 times that of commercial activated carbon and more than 2 times that of MOFs materials.
(3) SO of the invention2The adsorption material can be regenerated by heating desorption, and the adsorption capacity can be stabilized to more than 85% of the initial adsorption capacity after multiple times of cyclic adsorption-desorption, SO as to solve the problem of SO in the flue gas of petroleum refining industry2The adsorption and the recycling have important functions.
Detailed Description
The SO of the present invention is further illustrated by the following examples2An adsorption material and a preparation method and application thereof. The embodiments are implemented on the premise of the technical scheme of the invention, and detailed implementation modes and specific operation processes are given, but the protection scope of the invention is not limited by the following embodiments.
The experimental procedures in the following examples are, unless otherwise specified, conventional in the art. The experimental materials used in the following examples were purchased from a conventional biochemical reagent store unless otherwise specified.
The specific surface area and the pore volume of the material of the invention are N2And (4) analyzing and obtaining an adsorption and desorption curve by an adsorption instrument. The content of the metal element was analyzed by the ICP method. SO in gas2The content was analyzed by an instrument (Emerson X-STREAM). Setting the adsorption outlet SO2Penetration concentration (generally less than 50 mg/m)3) SO on activated carbon2The adsorption capacity is calculated by the following formula:
in the formula: q is sulfur capacity, mg/g; q is the total flow of the mixed gas at the inlet, mL/min; c0Is an inlet SO2Concentration, mg/L; ciIs the ith sampling outlet SO2Concentration, mg/L; t is the ith sampling time, min; n is the sampling times when the adsorption reaches saturation or within a specified time; m is the loading of the adsorbent material, g.
Example 1
Taking MOF-5 as a matrix, the specific surface area is 1655 m2G, pore volume of 1.13 cm3G, Zn content 31.2%. Carbonizing at 1000 ℃ for 6 hours in the presence of nitrogen to obtain the carbonized metal organic framework material. Putting the carbonized metal organic framework material into a solution of sodium sulfite with the mass concentration of 3% and disodium ethylene diamine tetraacetate with the mass concentration of 5%, soaking for 1h in the same volume, and drying for 6h at 120 ℃ in the presence of nitrogen after soaking to obtain SO2The loading capacity of sodium sulfite is 5%, and the loading capacity of disodium ethylene diamine tetraacetate is 2%.
Example 2
The procedure is as in example 1, except that SO is obtained2The loading capacity of sodium sulfite in the adsorbing material is 1 percent, and the loading capacity of disodium ethylene diamine tetraacetate is 3 percent.
Example 3
The procedure is as in example 1, except that SO is obtained2The loading capacity of the sodium sulfite in the adsorbing material is 7 percent, and the loading capacity of the disodium ethylene diamine tetraacetate is 1.0 percent.
Example 4
Taking MOF-74 as a matrix, and the specific surface area is 852 m2G, pore volume of 1.02 cm3G, Zn content 29.2%. Carbonizing at 900 ℃ for 10 hours in the presence of nitrogen to obtain the carbonized metal organic framework material. Putting the carbonized metal organic framework material into a solution of sodium sulfite with the mass concentration of 3% and disodium ethylene diamine tetraacetate with the mass concentration of 5%, soaking for 1h in the same volume, and drying for 6h at 120 ℃ in the presence of nitrogen after soaking to obtain SO2The loading capacity of the sodium sulfite is 5%, and the loading capacity of the ethylene diamine tetraacetic acid is 5%.
Comparative example 1
The difference from example 1 is that: disodium edetate was not loaded.
Comparative example 2
The difference from example 1 is that: sodium sulfite was not loaded.
Comparative example 3
The difference from example 1 is that: the metal organic framework material is not carbonized.
The adsorbing materials prepared in the examples and comparative examples of the present invention were subjected to adsorption performance tests. Wherein, SO in the flue gas2The content of (A) is 3% by volume, the content of water vapor is 5% by volume, and the content of oxygen is 5% by volume. The adsorption conditions were: the adsorption temperature is 20 ℃, and the adsorption space velocity is 800h-1The adsorption pressure is normal pressure and 0.2MPaG, and the concentration of the adsorption outlet is 50 mg/m3Time is taken as the breakthrough time. The test results are shown in table 1.
TABLE 1 different SO2Adsorption Capacity of adsorbent Material (mg/g)
Claims (13)
1. SO (SO)2The adsorption material is characterized in that sodium sulfite and disodium ethylene diamine tetraacetate are loaded on a carbonized metal organic framework material, and the loading amount of the sodium sulfite is not higher than 10 percent by mass, preferably 2 to 7 percent by mass; the load capacity of the disodium ethylene diamine tetraacetate is not higher than 5%, and is preferably 1-3%.
2. The adsorbent material according to claim 1, wherein: the zinc-based metal organic framework material is at least one of MOFs series.
3. The adsorbent material according to claim 1 or 2, characterized in that: the metal organic framework material is at least one of MOF-5 and MOF-74.
4. The adsorbent material according to any one of claims 1 to 3, characterized in that: the specific surface area of the metal-organic framework material is 800-1800m2Per g, pore volume of 0.8-1.2cm3/g。
5. The adsorbent material according to claim 1, wherein: the carbonized metal organic framework material is carbonized at 900-1150 ℃ in the presence of nitrogen, and the carbonization time is 5-10 hours.
6. SO according to any of claims 1 to 52The preparation method of the adsorbing material is characterized by comprising the following steps of:
(1) taking a zinc-based metal organic framework material as a matrix, and carrying out carbonization treatment at a certain temperature to obtain a carbonized metal organic framework material;
(2) preparing sodium sulfite and disodium ethylene diamine tetraacetate impregnation liquid, impregnating the carbonized metal organic framework material in the impregnation liquid, and drying after the impregnation to obtain SO2Adsorbing the material.
7. The method of claim 6, wherein: the zinc-based metal organic framework material is at least one of MOFs series.
8. The production method according to claim 6 or 7, characterized in that: the zinc-based metal organic framework material is at least one of MOF-5 and MOF-74.
9. The method of claim 6, wherein: the carbonization conditions are as follows: in the presence of nitrogen, the carbonization temperature is 900-1150 ℃, and the carbonization time is 5-10 hours.
10. The method of claim 6, wherein: in the impregnation liquid in the step (2), the mass concentration of sodium sulfite is less than 6%, preferably 1.2-4%, and the mass concentration of disodium ethylene diamine tetraacetate is 1-10%.
11. The method of claim 6, wherein: the dipping time is 1-5 hours, and the dipped material is dried at 100-120 ℃ in the presence of nitrogen for 6-10 hours.
12. SO according to any of claims 1 to 52The application of the adsorbing material is characterized in that: is suitable for containing water, oxygen and SO2SO in exhaust gas2Selective adsorption of (2), wherein SO2The volume concentration of (b) is more than 1%, preferably 1% to 5%.
13. Use according to claim 12, characterized in that: the adsorption temperature is 5-25 ℃, and the space velocity of the adsorption volume is 100-1000 h-1The adsorption pressure is 0.1-0.3 MPa.
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| CN202011198075.7A CN114433026B (en) | 2020-10-31 | 2020-10-31 | SO (SO) device 2 Adsorption material and preparation method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2452957A1 (en) * | 1979-04-06 | 1980-10-31 | Inst Francais Du Petrole | Sepg. hydrogen sulphide and nitrogen oxide simultaneously - from gas mixts., using chelated iron salt with iron at least, partly ter-valent |
| CN103058229A (en) * | 2013-01-21 | 2013-04-24 | 福建省邵武市榕丰化工有限公司 | Application for disodium edetate dehydrate |
| CN103657341A (en) * | 2013-12-10 | 2014-03-26 | 陕西省石油化工研究设计院 | Anti-oxidation type SO2 absorbing recycle agent |
| CN106823693A (en) * | 2017-03-28 | 2017-06-13 | 中北大学 | A kind of deep desulfuration absorbent for smoke-gas wet desulfurization |
| CN111375383A (en) * | 2018-12-31 | 2020-07-07 | 中国石油化工股份有限公司 | SO (SO)2Preparation method and application of adsorbing material |
-
2020
- 2020-10-31 CN CN202011198075.7A patent/CN114433026B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2452957A1 (en) * | 1979-04-06 | 1980-10-31 | Inst Francais Du Petrole | Sepg. hydrogen sulphide and nitrogen oxide simultaneously - from gas mixts., using chelated iron salt with iron at least, partly ter-valent |
| CN103058229A (en) * | 2013-01-21 | 2013-04-24 | 福建省邵武市榕丰化工有限公司 | Application for disodium edetate dehydrate |
| CN103657341A (en) * | 2013-12-10 | 2014-03-26 | 陕西省石油化工研究设计院 | Anti-oxidation type SO2 absorbing recycle agent |
| CN106823693A (en) * | 2017-03-28 | 2017-06-13 | 中北大学 | A kind of deep desulfuration absorbent for smoke-gas wet desulfurization |
| CN111375383A (en) * | 2018-12-31 | 2020-07-07 | 中国石油化工股份有限公司 | SO (SO)2Preparation method and application of adsorbing material |
Non-Patent Citations (1)
| Title |
|---|
| ANI WANG等: ""N-Doped Porous Carbon Derived by Direct Carbonization of Metal-Organic Complexes Crystal Materials for SO2 Adsorption"", 《CRYST. GROWTH DES.》, pages 1973 - 1984 * |
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