CN101380564A - Adsorbent and preparation method for removing acetaldehyde gas in carbon dioxide - Google Patents
Adsorbent and preparation method for removing acetaldehyde gas in carbon dioxide Download PDFInfo
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- CN101380564A CN101380564A CNA2008100131604A CN200810013160A CN101380564A CN 101380564 A CN101380564 A CN 101380564A CN A2008100131604 A CNA2008100131604 A CN A2008100131604A CN 200810013160 A CN200810013160 A CN 200810013160A CN 101380564 A CN101380564 A CN 101380564A
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- 239000003463 adsorbent Substances 0.000 title claims abstract description 49
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 42
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 21
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 title abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 12
- 239000002808 molecular sieve Substances 0.000 claims abstract description 10
- -1 molecular sieve cations Chemical class 0.000 claims abstract description 9
- 239000011575 calcium Substances 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011651 chromium Substances 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 7
- 239000011701 zinc Substances 0.000 claims abstract description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052788 barium Inorganic materials 0.000 claims abstract description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 6
- 150000001768 cations Chemical class 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 6
- 239000011591 potassium Substances 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 6
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims description 20
- 238000000967 suction filtration Methods 0.000 claims description 20
- 238000005303 weighing Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 10
- 229910021536 Zeolite Inorganic materials 0.000 claims description 8
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 8
- 239000010457 zeolite Substances 0.000 claims description 8
- 238000005342 ion exchange Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 239000012266 salt solution Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 3
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims description 2
- 239000003570 air Substances 0.000 claims description 2
- 238000005341 cation exchange Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 241000370738 Chlorion Species 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical group [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical group [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical group [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 claims 1
- 150000001299 aldehydes Chemical class 0.000 claims 1
- 150000001450 anions Chemical class 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 238000010926 purge Methods 0.000 claims 1
- 238000009418 renovation Methods 0.000 claims 1
- 238000009938 salting Methods 0.000 claims 1
- 238000005245 sintering Methods 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 230000008929 regeneration Effects 0.000 abstract description 6
- 238000011069 regeneration method Methods 0.000 abstract description 6
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 238000000465 moulding Methods 0.000 description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 11
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000036642 wellbeing Effects 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910013553 LiNO Inorganic materials 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- IKHGUXGNUITLKF-XPULMUKRSA-N acetaldehyde Chemical compound [14CH]([14CH3])=O IKHGUXGNUITLKF-XPULMUKRSA-N 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 125000004151 quinonyl group Chemical group 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
一种有效脱除二氧化碳中乙醛气体的吸附剂及制备方法，属于环境资源技术领域。本发明吸附剂特征是金属阳离子交换改性的X型或者Y型分子筛阳离子制备而得。其中金属阳离子可以是锂，钠，钾，镁，钙，锶，钡，铬，锰，铜，锌，铁，钴，镍或其混合物。本吸附剂具有吸附量大，净化度高，再生性能强，节约能源，绿色环保等优点。经过本吸附剂吸附后二氧化碳气体中的乙醛气体含量低于0.2ppm达到国家食品级二氧化碳生产标准，具有广泛的应用前景。An adsorbent for effectively removing acetaldehyde gas in carbon dioxide and a preparation method thereof belong to the technical field of environmental resources. The adsorbent of the present invention is characterized in that it is prepared by exchanging modified X-type or Y-type molecular sieve cations with metal cations. Wherein the metal cation may be lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or a mixture thereof. The adsorbent has the advantages of large adsorption capacity, high purification degree, strong regeneration performance, energy saving, environmental protection and the like. After being adsorbed by the adsorbent, the acetaldehyde gas content in the carbon dioxide gas is lower than 0.2ppm, reaching the national food-grade carbon dioxide production standard, and has wide application prospects.
Description
Technical field
The invention belongs to the environmental resource technical field, relate to adsorbent that removes low concentration acetaldehyde in the carbon dioxide and preparation method thereof.
Background technology
At present, activated carbon adsorbent is mainly adopted in the absorption of acetaldehyde in the carbon dioxide.Active carbon is a kind of adsorbent commonly used, and its pore structure prosperity has very big specific area and complex surfaces functional group, comprising: hydroxyl, carboxyl, ester group, phenolic hydroxyl group, aldehyde radical, ketone group, quinonyl, quinhydrones base etc.But the active carbon adsorption aldehydes exists defective in application process.
At first, the standard of acetaldehyde is 0.2ppm in the food-grade carbon-dioxide.Be difficult to reach the food-grade carbon-dioxide standard when adopting activated carbon to remove in the carbon dioxide low concentration acetaldehyde.
Secondly, less as the acticarbon that patent CN101143282 " purification method of organic exhaust gas " provides to the adsorbance of acetaldehyde, cause time of break-through short, the regeneration period is short, the regeneration frequency height, adsorbent attrition is big, and economic well-being of workers and staff is little.
Summary of the invention
The invention provides a kind of new adsorbent, overcome activated carbon adsorbent to the weak point in the adsorption process of acetaldehyde.Reached the food-grade standard through acetaldehyde in the carbon dioxide after this adsorbents adsorb, and its adsorbance to acetaldehyde is far longer than the adsorbance of active carbon to acetaldehyde.
Technical scheme of the present invention is:
The main component of adsorbent of the present invention is X type or the Y zeolite through metal cation exchange modification.Wherein metal cation can be lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or its mixture.
Preferred adsorbent has following several:
1. adopt alkali metal lithium ion-exchange Y molecular sieve cation, exchange degree is 60～100%.
2. adopt alkaline-earth metal magnesium ion exchange Y molecular sieve cation, exchange degree is 60～90%.
3. adopt transition metal zinc ion exchange Y molecular sieve cation, exchange degree is 40～85%.
Preparation of adsorbent method of the present invention is: take by weighing X type or Y zeolite, putting into concentration is 0.05～1mol/L, and quality is in the metal salt solution of 5～10 times in molecular sieve.Wherein metal salt solution comprises: the sulfate of lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or its mixture, nitrate, chloride, acetate, carbonate or its mixture.And under room temperature to 100 ℃ condition agitating solution 2～3 hours, suction filtration, drying, 500 ℃ of roastings 3～5 hours.
X type after adopting the method for extrusion or spin to exchange then or Y zeolite are made spherical, column or erose particle.
It is to adopt temperature swing adsorption process that adsorbent removes in the carbon dioxide method of acetaldehyde: adsorb under the normal temperature low pressure.The regeneration of normal pressure heating and blowing feeds nitrogen, air, carbon dioxide, steam or its mixture down at 200～400 ℃ and purged 2～6 hours.
Effect of the present invention and benefit are:
The carbon dioxide that discharges in the industrial process is collected effectively, reduces the pollution of carbon dioxide atmosphere.Compare with activated carbon adsorbent, this adsorbent has improved time of break-through, has prolonged the regeneration period, has reduced regeneration times, has prolonged the adsorbent life-span.Be lower than 0.2ppm through the aldehydes gas content in the carbon dioxide after this adsorbents adsorb, reach state food grade carbon-dioxide production standard.Promote the carbon dioxide product quality significantly, increase economic well-being of workers and staff.
The specific embodiment
Be described in detail the adsorbance of concrete preparation process of the present invention and adsorbent of the present invention below in conjunction with technical scheme.
Embodiment 1
Take by weighing 30 gram HY molecular screen primary powders and 10 gram LiNO
3, in 70 ℃ of 300mL water, stirred 2 hours.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.
Adopt Al then
2O
3Be adhesive, according to the Y zeolite quality: the ratio of adhesive quality=4:1 is mixed the two, and adopting banded extruder that mixture is extruded into diameter is 3mm, and length is the cylindrical particles of 12mm.(following examples forming process is identical) 550 ℃ of roastings 3 hours.Obtain adsorbent A.
Embodiment 2
Take by weighing 50 gram HY molecular screen primary powders and 13 gram Mg (NO
3)
22H
2O stirred 2 hours in 70 ℃ of 500mL water.Suction filtration, drying, 500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps two times again.Moulding obtains adsorbent B.
Embodiment 3
Take by weighing 20 gram HY molecular screen primary powders and 35 gram K
2C
2O
4H
2O stirred 2 hours in 50 ℃ of 200mL water.Suction filtration, drying obtains powder and restrains K with 35 again
2C
2O
4H
2O stirred 2 hours in 50 ℃ of 200mL water.Suction filtration, drying.500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps.Moulding obtains adsorbent C.
Embodiment 4
Take by weighing 20 gram HY molecular screen primary powders and 45 gram Ca (NO
3)
24H
2O stirred 2 hours in 50 ℃ of 200mL water.Suction filtration, drying obtains powder and restrains Ca (NO with 45 again
3)
24H
2O stirred 2 hours in 50 ℃ of 200mL water.Suction filtration, drying.500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps.Moulding obtains adsorbent D.
Embodiment 5
Take by weighing 20 gram HY molecular screen primary powders and 40 gram Sr (NO
3)
2, in 50 ℃ of 200mL water, stirred 2 hours.Suction filtration, drying obtains powder and restrains Sr (NO with 40 again
3)
2, in 50 ℃ of 200mL water, stirred 2 hours.Suction filtration, drying.500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps.Moulding obtains adsorbent E.
Embodiment 6
Take by weighing 20 gram HY molecular screen primary powders and 50 gram Ba (NO
3)
2, in 50 ℃ of 200mL water, stirred 2 hours.Suction filtration, drying obtains powder and restrains Ba (NO with 50 again
3)
2, in 50 ℃ of 200mL water, stirred 2 hours.Suction filtration, drying.500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps.Moulding obtains adsorbent F.
Embodiment 7
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Cr (NO
3)
39H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent G.
Embodiment 8
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Fe (NO
3)
39H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent H.
Embodiment 9
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Co (NO
3)
26H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent I.
Embodiment 10
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Ni (NO
3)
26H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent J.
Embodiment 11
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Cu (NO
3)
23H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent K.
Embodiment 12
Take by weighing 30 gram HY molecular screen primary powders and 10 gram Zn (NO
3)
26H
2O stirred 2 hours in 80 ℃ of 300mL water.Suction filtration, drying.Obtaining powder repeats above-mentioned steps.500 ℃ of roastings 3 hours.Moulding obtains adsorbent L.
Embodiment 13
Take by weighing 50 gram HY molecular screen primary powders and 10 gram NaNO
3, in 70 ℃ of 500mL water, stirred 2 hours.Suction filtration, drying, 500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps two times again.Moulding obtains adsorbent M.
Embodiment 14
Take by weighing 50 gram 13X molecular screen primary powders and 13 gram Mg (NO
3)
22H
2O stirred 2 hours in 70 ℃ of 500mL water.Suction filtration, drying, 500 ℃ of roastings 3 hours.Obtaining powder repeats above-mentioned steps two times again.Moulding obtains adsorbent N.
The adsorbent of above embodiment system can be at normal temperatures and pressures, and the aldehydes gas of 50000ppm concentration in the carbon dioxide is removed to below the 0.2ppm.This adsorbents adsorb amount sees the following form:
Subordinate list: adsorbents adsorb amount
| Adsorbent | Adsorbance (mg/g) |
| A | 553 |
| B | 773 |
| C | 332 |
| D | 467 |
| E | 428 |
| F | 294 |
| G | 327 |
| H | 145 |
| I | 145 |
| J | 327 |
| K | 339 |
| L | 484 |
| M | 446 |
| N | 480 |
Claims (10)
1. adsorbent that removes aldehydes gas in the carbon dioxide, its composition is that it is characterized in that: metal cation is lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or its mixture through the X type or the Y zeolite of metal cation exchange modification.
2. adsorbent according to claim 1 is characterized in that with the metal cation being lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or its mixture, and exchange degree is 1～100%.
3. adsorbent according to claim 2 is characterized in that exchange degree is 60～100% with lithium ion exchange Y molecular sieve cation.
4. adsorbent according to claim 2 is characterized in that exchange degree is 60～90% with magnesium ion exchange Y molecular sieve cation.
5. adsorbent according to claim 2 is characterized in that exchange degree is 40～85% with zinc ion exchange Y molecular sieve cation.
6. adsorbent according to claim 1, its preparation process is as follows:
1. take by weighing X type or Y zeolite;
2. preparing metal salting liquid;
3. X type or Y zeolite are mixed with metal salt solution, and under room temperature to 100 ℃ condition, stir;
4. suction filtration, drying, roasting.
7. metal salt solution according to claim 6, the cation that it is characterized in that slaine are lithium, sodium, potassium, magnesium, calcium, strontium, barium, chromium, manganese, copper, zinc, iron, cobalt, nickel or its mixture; Anion is sulfate radical, nitrate anion, acetate, carbonate, chlorion or its mixture.
8. preparation process according to claim 6 is characterized in that metal salt solution concentration at 0.05～1mol/L, and solution usage is 5～10 times of molecular sieve quality; Whipping temp is at 70～90 ℃, and mixing time is 2～3 hours, and sintering temperature is 500 ℃, and roasting time is 3～5 hours.
9. according to the described adsorbent of claim 1 to 5, the method that it is characterized in that adopting extrusion or spin is made X type or Y zeolite spherical, column or erose particle.
10. the renovation process of adsorbent according to claim 1 is characterized in that used adsorbent of molecular sieve, feeds nitrogen, air, carbon dioxide, steam or its mixture down at 200～500 ℃ and purges 2～6 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100131604A CN101380564A (en) | 2008-09-08 | 2008-09-08 | Adsorbent and preparation method for removing acetaldehyde gas in carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100131604A CN101380564A (en) | 2008-09-08 | 2008-09-08 | Adsorbent and preparation method for removing acetaldehyde gas in carbon dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101380564A true CN101380564A (en) | 2009-03-11 |
Family
ID=40460718
Family Applications (1)
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| CNA2008100131604A Pending CN101380564A (en) | 2008-09-08 | 2008-09-08 | Adsorbent and preparation method for removing acetaldehyde gas in carbon dioxide |
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| CN102335589A (en) * | 2011-09-16 | 2012-02-01 | 昆明理工大学 | Adsorbent and preparation method and use thereof |
| CN102463101A (en) * | 2010-11-17 | 2012-05-23 | 中国石油化工股份有限公司 | Ion exchange molecular sieve adsorbent and preparation method thereof |
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| CN102513166A (en) * | 2011-11-29 | 2012-06-27 | 镇江绿能环保科技有限公司 | High-selective absorption molecular sieve based composite material for purifying microalgae biodiesel |
| CN102744035A (en) * | 2011-04-20 | 2012-10-24 | 中国石油化工股份有限公司 | Ion exchange molecular sieve adsorbent, its preparation method and application |
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| CN102744035B (en) * | 2011-04-20 | 2015-06-10 | 中国石油化工股份有限公司 | Ion exchange molecular sieve adsorbent, its preparation method and application |
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| CN106117165B (en) * | 2016-06-27 | 2019-03-22 | 中触媒新材料股份有限公司 | A kind of purification process of propylene oxide |
| CN108117090A (en) * | 2016-11-29 | 2018-06-05 | 中国科学院大连化学物理研究所 | A kind of modified low silicon-aluminum is than X-type molecular sieve and its preparation method and application |
| CN108117089A (en) * | 2016-11-29 | 2018-06-05 | 中国科学院大连化学物理研究所 | A kind of chabazite molecular sieve and its application |
| CN108117090B (en) * | 2016-11-29 | 2021-07-27 | 中国科学院大连化学物理研究所 | A kind of modified low silicon-aluminum ratio X-type molecular sieve and its preparation method and application |
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| CN113231008A (en) * | 2021-05-20 | 2021-08-10 | 上海多纶化工有限公司 | Adsorbent for refining fatty alcohol polyoxyalkylene ether products |
| CN113214053B (en) * | 2021-05-20 | 2022-08-05 | 上海多纶化工有限公司 | Method for refining fatty alcohol polyoxyalkylene ether |
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