CN112246217A - Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof - Google Patents
Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof Download PDFInfo
- Publication number
- CN112246217A CN112246217A CN202011186343.3A CN202011186343A CN112246217A CN 112246217 A CN112246217 A CN 112246217A CN 202011186343 A CN202011186343 A CN 202011186343A CN 112246217 A CN112246217 A CN 112246217A
- Authority
- CN
- China
- Prior art keywords
- molecular sieve
- vocs
- equal
- honeycomb molecular
- temperature
- 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
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 191
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 191
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 74
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 61
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 38
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000010457 zeolite Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 33
- 239000000843 powder Substances 0.000 claims abstract description 65
- 239000011230 binding agent Substances 0.000 claims abstract description 59
- 238000001035 drying Methods 0.000 claims abstract description 39
- 238000001125 extrusion Methods 0.000 claims abstract description 33
- 238000004898 kneading Methods 0.000 claims abstract description 29
- 239000002245 particle Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000011148 porous material Substances 0.000 claims abstract description 24
- 239000011256 inorganic filler Substances 0.000 claims abstract description 23
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 16
- 239000004014 plasticizer Substances 0.000 claims abstract description 16
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 16
- 239000011859 microparticle Substances 0.000 claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 239000002912 waste gas Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 54
- 230000008569 process Effects 0.000 claims description 38
- 238000005469 granulation Methods 0.000 claims description 34
- 230000003179 granulation Effects 0.000 claims description 34
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 24
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 18
- 238000000746 purification Methods 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 14
- 229920002050 silicone resin Polymers 0.000 claims description 14
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 10
- 238000001694 spray drying Methods 0.000 claims description 10
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003365 glass fiber Substances 0.000 claims description 9
- 239000003463 adsorbent Substances 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 7
- 239000008107 starch Substances 0.000 claims description 7
- 235000019698 starch Nutrition 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- 239000005995 Aluminium silicate Substances 0.000 claims description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 5
- 235000012211 aluminium silicate Nutrition 0.000 claims description 5
- 239000000378 calcium silicate Substances 0.000 claims description 5
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 5
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 claims description 5
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 5
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 5
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 5
- 229910052878 cordierite Inorganic materials 0.000 claims description 5
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 5
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 5
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 5
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 4
- 239000008116 calcium stearate Substances 0.000 claims description 4
- 235000013539 calcium stearate Nutrition 0.000 claims description 4
- 229920000609 methyl cellulose Polymers 0.000 claims description 4
- 239000001923 methylcellulose Substances 0.000 claims description 4
- 235000010981 methylcellulose Nutrition 0.000 claims description 4
- 229920002774 Maltodextrin Polymers 0.000 claims description 3
- 239000005913 Maltodextrin Substances 0.000 claims description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 239000004113 Sepiolite Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 229960000892 attapulgite Drugs 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 239000010433 feldspar Substances 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 3
- 229940035034 maltodextrin Drugs 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 229910052624 sepiolite Inorganic materials 0.000 claims description 3
- 235000019355 sepiolite Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000003549 soybean oil Substances 0.000 claims description 3
- 235000012424 soybean oil Nutrition 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000002383 tung oil Substances 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 230000008929 regeneration Effects 0.000 abstract description 8
- 238000011069 regeneration method Methods 0.000 abstract description 8
- 238000003795 desorption Methods 0.000 abstract description 3
- 238000011049 filling Methods 0.000 abstract description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 33
- 238000005516 engineering process Methods 0.000 description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 239000003054 catalyst Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 238000004321 preservation Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 230000001186 cumulative effect Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 239000000805 composite resin Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001345 alkine derivatives Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 150000002170 ethers Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- -1 methane hydrocarbons Chemical class 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000915 pathological change Toxicity 0.000 description 1
- 230000036285 pathological change Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
-
- 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
- B01D53/06—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 with moving adsorbents, e.g. rotating beds
- B01D53/08—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 with moving adsorbents, e.g. rotating beds according to the "moving bed" method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- 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
Abstract
The invention relates to an integral honeycomb molecular sieve for purifying zeolite adsorption rotating wheels VOCs and a preparation method thereof, wherein the preparation method comprises the following steps: 1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder; 2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant, the inorganic binder B and water, and kneading and pugging to obtain pug; 3) extrusion molding and high-temperature roasting: and (3) performing vacuum extrusion molding on the pug, and then drying and roasting at high temperature. Compared with the prior art, the prepared integral honeycomb molecular sieve suitable for purifying the VOCs of the zeolite adsorption rotating wheel has the pore density of more than or equal to 300 meshes and the wall thickness of less than or equal to 0.25mm, and when the integral honeycomb molecular sieve is applied to purifying low-concentration VOCs-containing waste gas, the integral honeycomb molecular sieve has the advantages of small filling volume, high adsorption rate and desorption rate and low thermal regeneration temperature.
Description
Technical Field
The invention belongs to the technical field of inorganic materials for VOCs purification, and relates to an integral honeycomb molecular sieve for VOCs purification of a zeolite adsorption rotating wheel and a preparation method thereof.
Background
Advances in modern scientific technology and the widespread use of chemicals have led to the flooding of gaseous Volatile Organic Compounds (VOCs), such as non-methane hydrocarbons (alkanes, alkenes, alkynes, aromatics, etc.), oxygenated organics (aldehydes, ketones, alcohols, ethers, esters), sulfur-containing organics, chlorinated organics, etc. The boiling point of the VOCs is 50-260 ℃ at normal pressure, the saturated vapor pressure is more than 70Pa at room temperature, most of the VOCs are toxic and harmful substances, and when the concentration is too high, poisoning and pathological changes of human organs can be caused, even cancers can be caused. Therefore, emission control of industrial VOCs is essential.
In general, there are two broad categories of processing techniques for VOCs, the first being front-end control and the second being end-processing. The mainstream VOCs treatment is mainly controlled by terminal treatment technology, and the adsorption method is most common. The zeolite wheel adsorption method which has the advantages of repeatable regeneration, multiple applicable VOCs types, wide VOCs concentration range for purification, stable operation, compact structure, small occupied area, low comprehensive operation cost and the like is the most efficient VOCs waste gas concentration treatment technology which is recognized globally.
The most critical and core part in the zeolite adsorption rotating wheel is an integral honeycomb molecular sieve which is mainly divided into a carrier coating type honeycomb molecular sieve and an integral extrusion type honeycomb molecular sieve. As the integral honeycomb molecular sieve of the VOCs adsorption material, the technical level of the product directly influences the VOCs purification efficiency, the VOCs removal depth, the service life, the use cost and the like of the zeolite adsorption rotating wheel. At present, carrier coating type honeycomb molecular sieve is widely applied to zeolite adsorption rotating wheels, and the integral coating type honeycomb molecular sieve formed by rolling up ceramic fiber paper surface binding molecular sieve is most applied. However, the coating method has the disadvantages of high preparation cost (the carrier needs pretreatment and multiple times of dipping), uneven molecular sieve cloth, low molecular sieve loading amount (less than 30 wt%), easy blockage of carrier pore channels during dip coating, weak bonding force between the molecular sieve and the surface of the carrier, and easy reduction of adsorption efficiency and service life caused by falling of the molecular sieve particularly in long-term operation under the condition of large fluctuation of air volume.
Compared with a carrier coating type honeycomb molecular sieve, the integrally extruded honeycomb molecular sieve has the advantages of high temperature resistance (about 900 ℃), good adsorption and purification performance, good mechanical strength and easy-to-adjust molecular sieve content (0-90 wt%), no problem of molecular sieve falling, greatly improved adsorption efficiency and service life, and more remarkable advantages in treatment of VOCs waste gas with higher concentration and larger air volume. Under the same working condition, the integrally extruded honeycomb molecular sieve product with high molecular sieve content is applied to a zeolite adsorption rotating wheel, so that the volume of VOCs treatment equipment, the rotating wheel stage number and the equipment investment cost can be greatly reduced, and the realization of a smaller integrated VOCs treatment complete process is facilitated.
In recent years, although reports on the preparation of integrally extruded honeycomb molecular sieves are made in China, the related technology is not mature.
Chinese patent CN 107029668A discloses a preparation method of a honeycomb type molecular sieve-activated carbon composite adsorbent, the size of the honeycomb type molecular sieve-activated carbon composite adsorbent obtained after molding is 100 x 100mm, the wall thickness is 1.0mm, the square hole size is 2.5 x 2.5mm, and the hole density is about 100 meshes. Although the honeycomb type composite adsorbent has good VOCs purification performance, the addition of the activated carbon causes the adsorbent to have the risk of fire and collapse when the adsorbent is subjected to regeneration activation by using high-temperature air. In addition, the hydrophobicity of the activated carbon is poor, the VOCs purification performance of the honeycomb type composite adsorbent under high humidity conditions is reduced, and the wear rate of the honeycomb type composite adsorbent is high.
Chinese patent CN 107519926A discloses a preparation method of a high-temperature iron-based zeolite molecular sieve honeycomb denitration catalyst, and the obtained iron-based zeolite molecular sieve honeycomb catalyst has the cross-sectional dimension of 30mm in length multiplied by 30mm in width, the height of 200mm and the pore density of about 25 meshes. On the one hand, the honeycomb molecular sieve disclosed in this patent is not suitable for VOCs purification; on the other hand, the prepared honeycomb molecular sieve has lower sieve pore density and thicker pore wall, which causes larger mass transfer resistance and lower molecular sieve utilization rate in application. In addition, secondary drying is needed in the preparation process of the honeycomb molecular sieve, cracks often exist on the surface of the honeycomb molecular sieve, the wear rate is high, and the requirements of industrial production cannot be met due to high energy consumption and low yield.
Chinese patent CN 107442164 a discloses an extruded molecular sieve honeycomb catalyst and a preparation method thereof, the honeycomb catalyst has pore density less than 150 meshes, cracked surface and lower molecular sieve content, and the honeycomb catalyst reported in the patent is not suitable for purification of VOCs.
Chinese patent CN 105618159A discloses a method for forming an integral honeycomb structure of a molecular sieve catalyst, wherein the honeycomb molecular sieve catalyst has square holes with the size of 1.4 multiplied by 1.4mm, the wall thickness of 1.0mm and the mesh number of about 100, but the surface is easy to fall off powder and cracks are easily generated on the surface of a honeycomb body in the preparation process. In addition, secondary drying is needed in the preparation process of the honeycomb-shaped molecular sieve catalyst, and constant temperature and humidity are needed in the primary drying process, so that the preparation energy consumption and the complexity of operation are further increased.
In conclusion, the existing integrally-extruded honeycomb molecular sieve not only has a small number of wall thickness holes and a large number of cracks, but also has low strength, large abrasion (easy powder falling) and low utilization rate of the molecular sieve. For the zeolite adsorption rotating wheel for purifying VOCs, the pore density of the integral honeycomb molecular sieve of the core adsorption material is generally required to be more than or equal to 300 meshes, and the wall thickness is required to be less than or equal to 0.25 mm. The above patent technologies related to the integrally extruded honeycomb molecular sieve do not satisfy the requirements of the zeolite adsorption rotating wheel for purifying VOCs on the integral honeycomb molecular sieve, regardless of the preparation method or the product specification of the integrally extruded honeycomb molecular sieve.
Therefore, there is a need to develop a monolithic extruded honeycomb molecular sieve suitable for the purification of VOCs by using zeolite adsorption rotating wheels.
Disclosure of Invention
The invention aims to provide an integral honeycomb molecular sieve for purifying zeolite adsorption rotating wheels VOCs and a preparation method thereof.
The purpose of the invention can be realized by the following technical scheme:
a preparation method of an integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) of a zeolite adsorption rotating wheel comprises the following steps:
1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder;
2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant and the inorganic binder B, adjusting the humidity, and kneading and pugging to obtain pug;
3) extrusion molding and high-temperature roasting: and (3) carrying out vacuum extrusion molding on the pug to obtain a wet blank of the integral honeycomb molecular sieve, and then drying and roasting at high temperature to obtain the integral honeycomb molecular sieve.
Further, in step 1), the molecular sieve comprises one or more of an X-type molecular sieve, a Y-type molecular sieve, a ZSM-5 molecular sieve or a beta molecular sieve, the particle size of the molecular sieve is 0.5 to 5 μm, and particularly, the molecular sieve is preferably selected from a Y-type molecular sieve, a ZSM-5 molecular sieve or a beta molecular sieve with a high silica-alumina ratio, and the like, wherein the silica-alumina ratio of the Y-type molecular sieve is preferably 60 to 100, the silica-alumina ratio of the ZSM-5 molecular sieve is preferably 200-400, and the silica-alumina ratio of the beta molecular sieve is preferably 20 to 100; the inorganic filler comprises one or more of calcined kaolin, diatomite, feldspar, gamma-alumina, zirconia, talcum powder, attapulgite, cordierite, sepiolite, montmorillonite or calcium silicate, and the mesh number of the inorganic filler is more than or equal to 325 meshes, particularly, one or more of calcined kaolin, gamma-alumina, calcium silicate or cordierite with the mesh number of more than or equal to 500 meshes is preferred; the inorganic binder A comprises one or more of silica sol, aluminum sol, titanium oxide sol or zirconium oxide sol, and particularly, one or more of silica sol, aluminum sol or titanium oxide sol with the solid content of 20-50 wt% is preferred; the mass ratio of the molecular sieve, the inorganic filler and the inorganic binder A (calculated by oxide) is (50-100): (0.01-30): 5-30), and the solid content of the slurry is 10-40 wt%.
Further, in the step 1), the granulation is spray drying granulation, and can be selected from centrifugal spray granulation, two-fluid spray granulation or pressure spray granulation, in the spray drying granulation process, the air inlet temperature is 150-; in the high-temperature roasting process, the temperature is 550-; the particle diameter of the particle powder is 0.01-0.10mm, preferably 0.03-0.05 mm.
Further, in the step 2), the inorganic reinforcing agent comprises one or more of alumina fiber, silica fiber, titania fiber, zirconia fiber or glass fiber, particularly, E-glass fiber is preferred, the mesh number of the E-glass fiber is more than or equal to 800 meshes, and the content of alkali metal oxide is less than 0.5 wt%; the organic binder comprises one or more of methyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose or polyvinyl alcohol; the pore-forming agent comprises one or more of starch, maltodextrin or lignin; the plasticizer is polyethylene oxide; the dispersant comprises one or more of stearic acid, sodium stearate or calcium stearate; the lubricant comprises one or more of glycerol, tung oil or soybean oil; the inorganic binder B is a composite binder prepared from silica sol and silicone resin emulsion, preferably the solid content is 45-55 wt%, and the mass ratio of silicone resin is 30-60 wt%; the mass ratio of the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer, the dispersant, the lubricant and the inorganic binder B is (100) -200: 5-20: 2-15: 1-10: 1-8: 1-5: 5-25. Preferably, the adding amount of the organic matters is 5 to 15 percent of the total mass of the calcined integral honeycomb molecular sieve.
Further, in the step 2), the humidity adjusting process comprises: adjusting the humidity to 25-65% with water; the kneading process was carried out in a kneader, and after thorough kneading (about 10-60min) a wet powder was obtained: and (3) carrying out pugging in a pug mill, and carrying out vacuum pugging on wet powder obtained after kneading to obtain pug.
Further, in the step 3), in the vacuum extrusion molding process, the extrusion rate is 15-50r/min, and the vacuum degree is- (0.08-0.1) MPa; the drying is microwave drying, the drying temperature is 80-100 ℃, the drying time is 2-60min (preferably 2-10min), and the drying is carried out until the water content is less than or equal to 5.0 wt%; the high-temperature roasting process comprises the following steps: firstly roasting at 350-. Preferably, during the high-temperature roasting, the temperature is raised to 350-450 ℃ at 1-3 ℃/min for roasting for 1-4h, and then the temperature is raised to 600-750 ℃ at 1-3 ℃/min for roasting for 2-4 h.
An integral honeycomb molecular sieve for purifying VOCs of a zeolite adsorption rotating wheel is prepared by adopting the method.
Furthermore, the integral honeycomb molecular sieve has the pore density of more than or equal to 300 meshes, the wall thickness of less than or equal to 0.25mm and the specific surface area of more than or equal to 300m2G, pore volume is more than or equal to 0.3cm3The axial compressive strength is more than or equal to 1.2MPa, the radial compressive strength is more than or equal to 0.8MPa, and the wear rate is less than or equal to 0.15%/kg.
The application of the integral honeycomb molecular sieve is to apply the integral honeycomb molecular sieve in a zeolite adsorption rotating wheel for purifying VOCs.
Further, the content is 0-10000mg/m at relative humidity of 0-90%3The VOCs-containing waste gas is treated, the VOCs removal rate of the integral honeycomb molecular sieve is more than or equal to 95%, and the penetrating adsorption capacity is more than or equal to 8%.
The invention adopts a two-stage process method combining powder pre-granulation and vacuum extrusion, and prepares the integral honeycomb molecular sieve for purifying the zeolite adsorption rotating wheel VOCs by sequentially carrying out powder pre-granulation, material mixing and pugging, extrusion molding, drying and high-temperature roasting. The invention solves the preparation problem of the high-pore-density integrally-extruded honeycomb molecular sieve, and has simple and stable preparation process and high yield in industrial production. When VOCs-containing waste gas with low content, large air volume, high airspeed and complex components is treated, the method has higher VOCs removal rate and penetrating adsorption capacity, not only has small filling volume and high adsorption rate and desorption rate, but also has low thermal regeneration temperature, and is particularly suitable for purifying VOCs of zeolite adsorption rotating wheels in the industries of coating, printing and the like.
Compared with the prior art, the invention has the following characteristics:
1) compared with the existing preparation technology of the integral extrusion type honeycomb molecular sieve, the invention firstly introduces the powder pre-granulation process into the preparation of the integral honeycomb molecular sieve by the extrusion method. The introduction of the powder pre-granulation technology can combine the aggregate molecular sieve and the inorganic filler which are independently existed originally into a whole, thereby not only well regulating the thermal expansion coefficients of the aggregate molecular sieve and the inorganic filler, but also solving the problem of surface cracks of the honeycomb molecular sieve in the high-temperature roasting process. On the other hand, the particle size of the raw material powder is more round and the particle size distribution is more uniform and concentrated, thereby not only improving the plasticity and rheological property of the pug, but also improving the smoothness of extrusion molding and reducing the occurrence of cracks.
2) Compared with the existing preparation technology of the integrally extruded honeycomb molecular sieve, the preparation method optimizes the process and the formula, greatly reduces the dosage of the inorganic binder, and improves the yield of the product.
3) Compared with the existing preparation technology of the integrally extruded honeycomb molecular sieve, the composite inorganic binder is introduced, so that the product performance is ensured and the raw material cost is obviously reduced under the condition of greatly reducing the consumption of expensive silicon resin.
4) Compared with the existing integrally extruded honeycomb molecular sieve, the integrally extruded honeycomb molecular sieve developed by the invention has the advantages of higher mesh number, thinner wall thickness, larger specific surface area and pore volume, higher mechanical strength, lower wear rate and better purification performance of VOCs, and can meet the requirements of a zeolite adsorption rotating wheel for purifying the VOCs on the integral honeycomb molecular sieve.
5) The preparation method of the integrally extruded honeycomb molecular sieve has the advantages of simple process, stable product performance and low defective rate, and is suitable for industrial production.
Drawings
FIG. 1 is a photograph of a sample of the integrally extruded honeycomb molecular sieve prepared in example 1;
FIG. 2 is an XRD spectrum of the monolithic extruded honeycomb molecular sieve prepared in example 1;
FIG. 3 is a dynamic toluene sorption breakthrough curve for the monolithic extruded honeycomb molecular sieve prepared in example 1;
FIG. 4 is an XRD spectrum of the monolithic extruded honeycomb molecular sieve prepared in example 2;
figure 5 is an XRD spectrum of the monolithic extruded honeycomb molecular sieve prepared in example 3.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. The present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1:
a preparation method of an integrally extruded honeycomb molecular sieve suitable for zeolite adsorption rotating wheel VOCs purification comprises the following steps:
the method comprises the following steps: weighing 720g of ZSM-5 molecular sieve raw powder with a silica-alumina ratio of 300, 400g of Y molecular sieve raw powder with a silica-alumina ratio of 100, 80g of beta molecular sieve raw powder with a silica-alumina ratio of 40, 149g of calcined kaolin and 132g of alumina sol (calculated by oxides), adding water to adjust the mixture to have a solid content of 10 wt%, and carrying out pre-granulation after fully stirring, wherein the pre-granulation conditions are as follows: the air inlet temperature is 280 ℃ and the air outlet temperature is 160 ℃. Then, the powder obtained after pre-granulation is roasted for 6h at 550 ℃, and then the micro-particle powder with the particle size of 0.03-0.05mm is obtained after screening.
Step two: first, 864g of fine powder, 96g E-glass fiber, 48g of methyl cellulose, 36g of starch, 12g of polyethylene oxide and 6g of sodium stearate were weighed and mixed in a high speed mixer for 1 hour. Then, the uniformly mixed powder was transferred into a kneader, 6g of glycerol, 240g of silica sol and a silicone resin composite binder (mass ratio of silica sol to silicone resin is 1:1 in terms of oxide) were added, and the humidity of the material was adjusted with water and continuously kneaded for 20 min. Finally, the pug after kneading is transferred into a vacuum pugging machine, pugging is carried out for a plurality of times until the plasticity of the pug is 0.20-0.30 (measured by a plasticity measuring instrument).
Step three: and extruding and molding the pug by a vacuum extruder at 25r/min (a mold is 300 meshes, the wall thickness is 0.2mm) to obtain an integrally extruded honeycomb molecular sieve wet blank. Cutting to obtain a cylindrical monolithic honeycomb molecular sieve wet green body block with the size of 30 multiplied by 30mm, then microwave drying the cut monolithic honeycomb molecular sieve wet green body block at 80 ℃ for 10min,
step four: placing the dried wet green body block of the integral honeycomb molecular sieve in an atmosphere furnace, heating the wet green body block of the integral honeycomb molecular sieve from room temperature to 350 ℃ at the speed of 1 ℃/min, and carrying out heat preservation roasting for 3 h; then raising the temperature from 350 ℃ to 750 ℃ at the speed of 2 ℃/min, carrying out heat preservation roasting for 2h, and cooling to room temperature to obtain the integrally extruded honeycomb molecular sieve, wherein a sample picture is shown in figure 1.
XRD spectrogram analysis of the prepared integrally extruded honeycomb molecular sieve is shown in figure 2. Further analysis and testing showed that the specific surface area of the monolithic extruded honeycomb molecular sieve was 310m2Per g, pore volume of 0.32cm3G, axial compressive strength of 1.32MPa, radial compressive strength of 0.85MPa, and wear rate of 0.11%/kg.
The dynamic adsorption evaluation experiment under the conditions of room temperature, pressure of 0.2MPa, initial toluene content of 3700-4000ppm (mol/mol), and gas flow rate of 590-600ml/min shows that the toluene removal rate of the monolithic extrusion type honeycomb molecular sieve can reach more than 95%, the breakthrough cumulative adsorption capacity is 8.32% (based on the removal rate of 95%), and the adsorption breakthrough curve is shown in figure 3.
The adsorption desorption regeneration experiment shows that when the regeneration heating temperature reaches 150 ℃, the complete desorption of the toluene can be completed after 1h of regeneration. After 10 times of regeneration, the toluene removal rate of the integral extrusion type honeycomb molecular sieve still can reach more than 95%, the penetration cumulative adsorption capacity is 8.10% (the removal rate is 95%), and the loss rate is low.
Example 2:
a preparation method of an integrally extruded honeycomb molecular sieve suitable for zeolite adsorption rotating wheel VOCs purification comprises the following steps:
the method comprises the following steps: weighing 1200g of ZSM-5 molecular sieve raw powder with a silica-alumina ratio of 300, 149g of calcium silicate and 132g of silica sol (calculated by oxide), adding water to adjust the solid content to 40 wt%, fully stirring, and then carrying out pre-granulation under the following pre-granulation conditions: the air inlet temperature is 220 ℃, and the air outlet temperature is 100 ℃. Then, the powder obtained after pre-granulation is roasted for 2h at 850 ℃, and the micro-particle powder with the particle size of 0.03-0.05mm is obtained after screening.
Step two: first, 864g of fine powder, 96g E-glass fiber, 48g of hydroxypropyl methylcellulose, 36g of starch, 12g of polyethylene oxide and 6g of sodium stearate were weighed and mixed in a high speed mixer for 1 hour. Then, the uniformly mixed powder was transferred into a kneader, 6g of glycerol, 240g of silica sol and silicone resin composite binder (silica sol to silicone resin mass ratio was 2:3 in terms of oxide) were added, and the humidity of the material was adjusted with water and continuously kneaded for 20 min. Finally, the pug after kneading is transferred into a vacuum pug mill, pugging is carried out for many times until the plasticity of the pug is 0.20-0.30 (measured by a plasticity measuring instrument).
Step three: and extruding and molding the pug by a vacuum extruder at 35r/min (a mold is 400 meshes, the wall thickness is 0.15mm) to obtain an integrally extruded honeycomb molecular sieve wet blank. Cutting to obtain a cylindrical monolithic honeycomb molecular sieve wet green body block with the size of 30 multiplied by 30mm, then drying the cut monolithic honeycomb molecular sieve wet green body block at 100 ℃ for 2min by microwave,
step four: placing the dried wet green body block of the integral honeycomb molecular sieve in an atmosphere furnace, heating the wet green body block to 450 ℃ from room temperature at the speed of 2 ℃/min, and carrying out heat preservation roasting for 3 h; then heating from 450 ℃ to 600 ℃ at the speed of 2 ℃/min, carrying out heat preservation roasting for 4h, and cooling to room temperature to obtain the integrally extruded honeycomb molecular sieve.
XRD spectrum analysis was performed on the prepared monolithic extruded honeycomb molecular sieve, as shown in FIG. 4. Further analysis tests show thatThe specific surface area of the integrally extruded honeycomb molecular sieve is 301m2Per g, pore volume of 0.31cm3G, axial compressive strength of 1.22MPa, radial compressive strength of 0.91MPa, and wear rate of 0.13%/kg.
The dynamic adsorption evaluation experiment under the conditions of room temperature, pressure of 0.2MPa, initial toluene content of 3700-4000ppm (mol/mol), and gas flow rate of 590-600ml/min shows that the toluene removal rate of the monolithic extrusion type honeycomb molecular sieve can reach more than 95%, and the breakthrough cumulative adsorption capacity is 8.25% (removal rate is 95%).
Example 3:
a preparation method of an integrally extruded honeycomb molecular sieve suitable for zeolite adsorption rotating wheel VOCs purification comprises the following steps:
the method comprises the following steps: weighing 800g of ZSM-5 molecular sieve raw powder with a silica-alumina ratio of 300, 400g of Y molecular sieve raw powder with a silica-alumina ratio of 60, 149g of cordierite and 132g of alumina sol (calculated by oxide), adding water to adjust the solid content to 20 wt%, and carrying out pre-granulation after fully stirring, wherein the pre-granulation conditions are as follows: the air inlet temperature is 240 ℃, and the air outlet temperature is 120 ℃. Then, the powder obtained after pre-granulation is roasted for 3h at 850 ℃, and the micro-particle powder with the particle size of 0.03-0.05mm is obtained after screening.
Step two: first, 864g of fine powder, 96g E-glass fiber, 48g of carboxymethyl cellulose, 36g of starch, 12g of polyethylene oxide and 6g of calcium stearate were weighed and mixed in a high-speed mixer for 1 hour. Then, the uniformly mixed powder was transferred into a kneader, 6g of glycerol, 240g of silica sol and silicone resin composite binder (silica sol to silicone resin mass ratio was 2:1 in terms of oxide) were added, and the humidity of the material was adjusted with water and continuously kneaded for 30 min. Finally, the pug after kneading is transferred into a vacuum pugging machine, pugging is carried out for a plurality of times until the plasticity of the pug is 0.25-0.30 (measured by a plasticity tester).
Step three: and extruding and molding the pug by a vacuum extruder at 15r/min (a mold is 600 meshes, the wall thickness is 0.15mm) to obtain an integrally extruded honeycomb molecular sieve wet blank. Cutting to obtain a cylindrical monolithic honeycomb molecular sieve wet green body block with the size of 30 multiplied by 30mm, then drying the cut monolithic honeycomb molecular sieve wet green body block at 100 ℃ for 5min by microwave,
step four: placing the dried wet green body block of the integral honeycomb molecular sieve in an atmosphere furnace, heating the wet green body block to 400 ℃ from room temperature at the speed of 3 ℃/min, and carrying out heat preservation roasting for 3 hours; then heating from 400 ℃ to 700 ℃ at the speed of 3 ℃/min, carrying out heat preservation roasting for 3h, and cooling to room temperature to obtain the integrally extruded honeycomb molecular sieve.
XRD spectrum analysis was performed on the prepared monolithic extruded honeycomb molecular sieve, as shown in FIG. 5. Further analysis and testing showed that the specific surface area of the monolithic extruded honeycomb molecular sieve was 322m2Per g, pore volume of 0.35cm3G, axial compressive strength of 1.27MPa, radial compressive strength of 0.92MPa, and wear rate of 0.08%/kg.
The dynamic adsorption evaluation experiment under the conditions of room temperature, pressure of 0.2MPa, initial toluene content of 3700-4000ppm (mol/mol), and gas flow rate of 590-600ml/min shows that the toluene removal rate of the monolithic extrusion type honeycomb molecular sieve can reach more than 95%, and the breakthrough cumulative adsorption capacity is 8.48% (the removal rate is 95%).
Example 4:
a preparation method of an integrally extruded honeycomb molecular sieve suitable for zeolite adsorption rotating wheel VOCs purification comprises the following steps:
the method comprises the following steps: weighing 400g of ZSM-5 molecular sieve raw powder with a silica-alumina ratio of 300, 800g of Y molecular sieve raw powder with a silica-alumina ratio of 60, 149g of gamma alumina and 132g of alumina sol (calculated by oxides), adding water to adjust the solid content to 30 wt%, and performing pre-granulation after fully stirring, wherein the pre-granulation conditions are as follows: the air inlet temperature is 300 ℃, and the air outlet temperature is 180 ℃. Then, the powder obtained after pre-granulation is roasted for 3h at 850 ℃, and the micro-particle powder with the particle size of 0.03-0.05mm is obtained after screening.
Step two: first, 864g of fine powder, 96g E-glass fiber, 48g of carboxymethyl cellulose, 36g of starch, 12g of polyethylene oxide and 6g of sodium stearate were weighed and mixed in a high speed mixer for 2 hours. Then, the uniformly mixed powder was transferred into a kneader, 6g of glycerol, 240g of silica sol and a silicone resin composite binder (mass ratio of silica sol to silicone resin was 2:1 in terms of oxide) were added, and the humidity of the material was adjusted with water and continuously kneaded for 20 min. Finally, the pug after kneading is transferred into a vacuum pugging machine, pugging is carried out for a plurality of times until the plasticity of the pug is 0.20-0.25 (measured by a plasticity tester).
Step three: and extruding and molding the pug by a vacuum extruder at 35r/min (a mold is 400 meshes, the wall thickness is 0.15mm) to obtain an integrally extruded honeycomb molecular sieve wet blank. Cutting to obtain a cylindrical monolithic honeycomb molecular sieve wet green body block with the size of 30 multiplied by 30mm, then microwave drying the cut monolithic honeycomb molecular sieve wet green body block at 100 ℃ for 10min,
step four: placing the dried wet green body block of the integral honeycomb molecular sieve in an atmosphere furnace, heating the wet green body block to 400 ℃ from room temperature at the speed of 3 ℃/min, and carrying out heat preservation roasting for 3 hours; then heating from 400 ℃ to 650 ℃ at the speed of 3 ℃/min, carrying out heat preservation roasting for 4h, and cooling to room temperature to obtain the integrally extruded honeycomb molecular sieve.
And (3) testing the indexes of the specific surface area, the pore volume, the strength and the wear rate of the prepared integrally extruded honeycomb molecular sieve. The results show that the specific surface area of the integrally extruded honeycomb molecular sieve is 316m2Per g, pore volume of 0.32cm3G, axial compressive strength of 1.24MPa, radial compressive strength of 0.86MPa, and wear rate of 0.12%/kg.
The dynamic adsorption evaluation experiment under the conditions of room temperature, pressure of 0.2MPa, initial toluene content of 3700-4000ppm (mol/mol), and gas flow rate of 590-600ml/min shows that the toluene removal rate of the monolithic extrusion type honeycomb molecular sieve can reach more than 95%, and the breakthrough cumulative adsorption capacity is 8.16% (the removal rate is 95%).
Example 5:
a preparation method of an integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) of a zeolite adsorption rotating wheel comprises the following steps:
1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder;
2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant and the inorganic binder B, adjusting the humidity, and kneading and pugging to obtain pug;
3) extrusion molding and high-temperature roasting: and (3) carrying out vacuum extrusion molding on the pug to obtain a wet blank of the integral honeycomb molecular sieve, and then drying and roasting at high temperature to obtain the integral honeycomb molecular sieve.
In the step 1), the molecular sieve comprises an X-type molecular sieve and a Y-type molecular sieve, and the particle size of the molecular sieve is 0.5-1 μm; the inorganic filler comprises cordierite, sepiolite, montmorillonite and calcium silicate, and the mesh number of the inorganic filler is more than or equal to 325 meshes; the inorganic binder A comprises silica sol and aluminum sol; the mass ratio of the molecular sieve to the inorganic filler to the inorganic binder A is 100:0.01:30, and the solid content of the slurry is 10 wt%.
The granulation is spray drying granulation, and in the spray drying granulation process, the air inlet temperature is 300 ℃ and the air outlet temperature is 80 ℃; in the high-temperature roasting process, the temperature is 550 ℃, and the time is 10 hours; the particle diameter of the micro-particle powder is 0.06-0.10 mm.
In the step 2), the inorganic reinforcing agent comprises titanium oxide fibers and glass fibers; the organic binder comprises methylcellulose and hydroxypropyl methylcellulose; the pore-forming agent is lignin; the plasticizer is polyethylene oxide; the dispersant is stearic acid; the lubricant is soybean oil; the inorganic binder B is a composite binder prepared from silica sol and silicone resin emulsion; the mass ratio of the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer, the dispersant, the lubricant and the inorganic binder B is 100:20:2:10:1:5:1: 25.
The humidity adjusting process comprises the following steps: adjusting the humidity to 25% by water; the kneading process is carried out in a kneading machine, and after sufficient kneading, wet powder is obtained: and (3) carrying out pugging in a pug mill, and carrying out vacuum pugging on wet powder obtained after kneading to obtain pug.
In the step 3), in the vacuum extrusion molding process, the extrusion rate is 15r/min, and the vacuum degree is-0.1 MPa; the drying is microwave drying, the drying temperature is 80 ℃, the drying time is 60min, and the drying is carried out until the water content is less than or equal to 5.0 wt%; the high-temperature roasting process comprises the following steps: roasting at 350 deg.C for 8 hr, and roasting at 600 deg.C for 6 hr.
The prepared integral honeycomb molecular sieve has the pore density of more than or equal to 300 meshes, the wall thickness of less than or equal to 0.25mm and the specific surface area of more than or equal to 300m2G, pore volume is more than or equal to 0.3cm3The axial compressive strength is more than or equal to 1.2MPa, the radial compressive strength is more than or equal to 0.8MPa, and the wear rate is less than or equal to 0.15%/kg.
The integral honeycomb molecular sieve is applied to a zeolite adsorption rotating wheel and is used for purifying VOCs. Under the relative humidity of 0-90%, the content is 0-10000mg/m3The VOCs-containing waste gas is treated, the VOCs removal rate of the integral honeycomb molecular sieve is more than or equal to 95 percent, and the penetrating adsorption capacity is more than or equal to 8 percent.
Example 6:
a preparation method of an integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) of a zeolite adsorption rotating wheel comprises the following steps:
1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder;
2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant and the inorganic binder B, adjusting the humidity, and kneading and pugging to obtain pug;
3) extrusion molding and high-temperature roasting: and (3) carrying out vacuum extrusion molding on the pug to obtain a wet blank of the integral honeycomb molecular sieve, and then drying and roasting at high temperature to obtain the integral honeycomb molecular sieve.
In the step 1), the molecular sieve is a ZSM-5 molecular sieve, and the particle size of the molecular sieve is 4-5 mu m; the inorganic filler comprises gamma-alumina, zirconia, talcum powder and attapulgite, and the mesh number of the inorganic filler is more than or equal to 325 meshes; the inorganic binder A comprises alumina sol and titanium oxide sol; the mass ratio of the molecular sieve to the inorganic filler to the inorganic binder A is 50:30:5, and the solid content of the slurry is 40 wt%.
The granulation is spray drying granulation, and in the spray drying granulation process, the air inlet temperature is 150 ℃ and the air outlet temperature is 180 ℃; in the high-temperature roasting process, the temperature is 850 ℃, and the time is 1 h; the particle diameter of the micro-particle powder is 0.03-0.08 mm.
In the step 2), the inorganic reinforcing agent comprises titanium oxide fibers and zirconium oxide fibers; the organic binder comprises hydroxypropyl methylcellulose and polyvinyl alcohol; the pore-forming agent is maltodextrin; the plasticizer is polyethylene oxide; the dispersant is sodium stearate; the lubricant is tung oil; the inorganic binder B is a composite binder prepared from silica sol and silicone resin emulsion; the mass ratio of the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer, the dispersant, the lubricant and the inorganic binder B is 200:5:15:1:8:1:5: 5.
The humidity adjusting process comprises the following steps: adjusting the humidity to 45% by water; the kneading process is carried out in a kneading machine, and after sufficient kneading, wet powder is obtained: and (3) carrying out pugging in a pug mill, and carrying out vacuum pugging on wet powder obtained after kneading to obtain pug.
In the step 3), in the vacuum extrusion molding process, the extrusion rate is 50r/min, and the vacuum degree is-0.08 MPa; the drying is microwave drying, the drying temperature is 100 ℃, the drying time is 2min, and the drying is carried out until the water content is less than or equal to 5.0 wt%; the high-temperature roasting process comprises the following steps: the mixture is firstly roasted at 550 ℃ for 1h and then roasted at 850 ℃ for 2 h.
The prepared integral honeycomb molecular sieve has the pore density of more than or equal to 300 meshes, the wall thickness of less than or equal to 0.25mm and the specific surface area of more than or equal to 300m2G, pore volume is more than or equal to 0.3cm3The axial compressive strength is more than or equal to 1.2MPa, the radial compressive strength is more than or equal to 0.8MPa, and the wear rate is less than or equal to 0.15%/kg.
The integral honeycomb molecular sieve is applied to a zeolite adsorption rotating wheel and is used for purifying VOCs. Under the relative humidity of 0-90%, the content is 0-10000mg/m3The VOCs-containing waste gas is treated, the VOCs removal rate of the integral honeycomb molecular sieve is more than or equal to 95 percent, and the penetrating adsorption capacity is more than or equal to 8 percent.
Example 7:
a preparation method of an integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) of a zeolite adsorption rotating wheel comprises the following steps:
1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder;
2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant and the inorganic binder B, adjusting the humidity, and kneading and pugging to obtain pug;
3) extrusion molding and high-temperature roasting: and (3) carrying out vacuum extrusion molding on the pug to obtain a wet blank of the integral honeycomb molecular sieve, and then drying and roasting at high temperature to obtain the integral honeycomb molecular sieve.
In the step 1), the molecular sieve is a beta molecular sieve, and the particle size of the molecular sieve is 2-3 μm; the inorganic filler comprises calcined kaolin, diatomite and feldspar, and the mesh number of the inorganic filler is more than or equal to 325 meshes; the inorganic binder A is zirconia sol; the mass ratio of the molecular sieve to the inorganic filler to the inorganic binder A is 75:15:18, and the solid content of the slurry is 25 wt%.
The granulation is spray drying granulation, and in the spray drying granulation process, the air inlet temperature is 220 ℃ and the air outlet temperature is 120 ℃; in the high-temperature roasting process, the temperature is 700 ℃, and the time is 5 hours; the particle diameter of the micro-particle powder is 0.01-0.05 mm.
In the step 2), the inorganic reinforcing agent comprises alumina fiber and silica fiber; the organic binder is carboxymethyl cellulose; the pore-forming agent is starch; the plasticizer is polyethylene oxide; the dispersing agent is calcium stearate; the lubricant is glycerol; the inorganic binder B is a composite binder prepared from silica sol and silicone resin emulsion; the mass ratio of the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer, the dispersant, the lubricant and the inorganic binder B is 150:12:8:5:5:3:3: 15.
The humidity adjusting process comprises the following steps: adjusting the humidity to 65% with water; the kneading process is carried out in a kneading machine, and after sufficient kneading, wet powder is obtained: and (3) carrying out pugging in a pug mill, and carrying out vacuum pugging on wet powder obtained after kneading to obtain pug.
In the step 3), in the vacuum extrusion molding process, the extrusion rate is 30r/min, and the vacuum degree is-0.09 MPa; the drying is microwave drying, the drying temperature is 90 ℃, the drying time is 30min, and the drying is carried out until the water content is less than or equal to 5.0 wt%; the high-temperature roasting process comprises the following steps: the mixture is firstly roasted at 450 ℃ for 5h and then roasted at 720 ℃ for 4 h.
The prepared integral honeycomb molecular sieve has the pore density of more than or equal to 300 meshes, the wall thickness of less than or equal to 0.25mm and the specific surface area of more than or equal to 300m2G, pore volume is more than or equal to 0.3cm3The axial compressive strength is more than or equal to 1.2MPa, the radial compressive strength is more than or equal to 0.8MPa, and the wear rate is less than or equal to 0.15%/kg.
The integral honeycomb molecular sieve is applied to a zeolite adsorption rotating wheel and is used for purifying VOCs. Under the relative humidity of 0-90%, the content is 0-10000mg/m3The VOCs-containing waste gas is treated, the VOCs removal rate of the integral honeycomb molecular sieve is more than or equal to 95 percent, and the penetrating adsorption capacity is more than or equal to 8 percent.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A preparation method of an integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) of a zeolite adsorption rotating wheel is characterized by comprising the following steps of:
1) pre-granulating powder: mixing a molecular sieve, an inorganic filler, an inorganic binder A and water to prepare slurry, and then granulating and roasting at high temperature to obtain micro-particle powder;
2) mixing and pugging: uniformly mixing the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer and the dispersant, adding the lubricant and the inorganic binder B, adjusting the humidity, and kneading and pugging to obtain pug;
3) extrusion molding and high-temperature roasting: and (3) carrying out vacuum extrusion molding on the pug to obtain a wet blank of the integral honeycomb molecular sieve, and then drying and roasting at high temperature to obtain the integral honeycomb molecular sieve.
2. The method of claim 1, wherein in step 1), the molecular sieve comprises one or more of an X-type molecular sieve, a Y-type molecular sieve, a ZSM-5 molecular sieve or a beta molecular sieve, and the particle size of the molecular sieve is 0.5 to 5 μm; the inorganic filler comprises one or more of calcined kaolin, diatomite, feldspar, gamma-alumina, zirconia, talcum powder, attapulgite, cordierite, sepiolite, montmorillonite or calcium silicate, and the mesh number of the inorganic filler is more than or equal to 325 meshes; the inorganic binder A comprises one or more of silica sol, aluminum sol, titanium oxide sol or zirconium oxide sol; the mass ratio of the molecular sieve, the inorganic filler and the inorganic binder A is (50-100): (0.01-30): 5-30), and the solid content of the slurry is 10-40 wt%.
3. The method for preparing the integral honeycomb molecular sieve for purifying the VOCs of the zeolite adsorption rotating wheel as claimed in claim 1, wherein in the step 1), the granulation is spray drying granulation, and in the spray drying granulation process, the inlet air temperature is 150-300 ℃ and the outlet air temperature is 80-180 ℃; in the high-temperature roasting process, the temperature is 550-; the particle size of the particle powder is 0.01-0.10 mm.
4. The method of claim 1, wherein in step 2), the inorganic reinforcing agent comprises one or more of alumina fibers, silica fibers, titania fibers, zirconia fibers, or glass fibers; the organic binder comprises one or more of methyl cellulose, hydroxypropyl methyl cellulose, carboxymethyl cellulose or polyvinyl alcohol; the pore-forming agent comprises one or more of starch, maltodextrin or lignin; the plasticizer is polyethylene oxide; the dispersant comprises one or more of stearic acid, sodium stearate or calcium stearate; the lubricant comprises one or more of glycerol, tung oil or soybean oil; the inorganic binder B is a composite binder prepared from silica sol and silicone resin emulsion; the mass ratio of the particle powder, the inorganic reinforcing agent, the organic binder, the pore-forming agent, the plasticizer, the dispersant, the lubricant and the inorganic binder B is (100) -200: 5-20: 2-15: 1-10: 1-8: 1-5: 5-25.
5. The method for preparing the monolithic honeycomb molecular sieve for purifying the VOCs of the zeolite adsorption rotating wheel according to claim 1, wherein in the step 2), the humidity adjusting process comprises the following steps: adjusting the humidity to 25-65% with water; the kneading process is carried out in a kneading machine, and after sufficient kneading, wet powder is obtained: and (3) carrying out pugging in a pug mill, and carrying out vacuum pugging on wet powder obtained after kneading to obtain pug.
6. The method for preparing the monolithic honeycomb molecular sieve for purifying VOCs of the zeolite adsorption rotating wheel according to claim 1, wherein in the step 3), the extrusion rate is 15-50r/min and the vacuum degree is- (0.08-0.1) MPa in the vacuum extrusion molding process; the drying is microwave drying, the drying temperature is 80-100 ℃, the drying time is 2-60min, and the drying is carried out until the water content is less than or equal to 5.0 wt%; the high-temperature roasting process comprises the following steps: firstly roasting at 350-.
7. A monolithic honeycomb molecular sieve for the purification of VOCs from a zeolitic adsorbent rotating wheel, characterized in that it is prepared by the process according to any of claims 1 to 6.
8. The integral honeycomb molecular sieve for purifying VOCs of the zeolite adsorption rotating wheel of claim 7, wherein the pore density of the integral honeycomb molecular sieve is more than or equal to 300 meshes, the wall thickness is less than or equal to 0.25mm, and the specific surface area is more than or equal to 300m2G, pore volume is more than or equal to 0.3cm3The axial compressive strength is more than or equal to 1.2MPa, the radial compressive strength is more than or equal to 0.8MPa, and the wear rate is less than or equal to 0.15%/kg.
9. The use of the monolithic honeycomb molecular sieve of claim 7, wherein the monolithic honeycomb molecular sieve is used in a zeolite adsorption rotor for the purification of VOCs.
10. Use of a monolithic honeycomb molecular sieve according to claim 9, characterized in that it has a content of 0-10000mg/m at a relative humidity of 0-90%3The VOCs-containing waste gas is treated, the VOCs removal rate of the integral honeycomb molecular sieve is more than or equal to 95%, and the penetrating adsorption capacity is more than or equal to 8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186343.3A CN112246217A (en) | 2020-10-30 | 2020-10-30 | Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011186343.3A CN112246217A (en) | 2020-10-30 | 2020-10-30 | Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112246217A true CN112246217A (en) | 2021-01-22 |
Family
ID=74267839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011186343.3A Pending CN112246217A (en) | 2020-10-30 | 2020-10-30 | Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112246217A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019316A (en) * | 2021-04-06 | 2021-06-25 | 山东众智发环境科技有限公司 | Integral honeycomb molecular sieve adsorbent capable of being regenerated in circulating mode and preparation method thereof |
| CN113171748A (en) * | 2021-05-25 | 2021-07-27 | 山东亮剑环保新材料有限公司 | High surface area honeycomb zeolite and production method thereof |
| CN113368813A (en) * | 2021-07-28 | 2021-09-10 | 山东亮剑环保新材料有限公司 | Method for preparing honeycomb molecular sieve adsorbent by using red mud |
| CN113426406A (en) * | 2021-07-09 | 2021-09-24 | 山东亮剑环保新材料有限公司 | High-strength low-density honeycomb zeolite and production method thereof |
| CN113426407A (en) * | 2021-07-09 | 2021-09-24 | 山东亮剑环保新材料有限公司 | Zero-drying-period honeycomb zeolite and preparation method thereof |
| CN113578258A (en) * | 2021-07-09 | 2021-11-02 | 山东亮剑环保新材料有限公司 | Spherical zeolite VOCs adsorbent with core-shell structure and preparation method thereof |
| CN113813988A (en) * | 2021-10-27 | 2021-12-21 | 江西省杰夫环保科技有限公司 | Preparation method of high-efficiency microcrystalline molecular sieve catalyst for fine desulfurization |
| CN113979779A (en) * | 2021-11-26 | 2022-01-28 | 江阴金属材料创新研究院有限公司 | Diatom active ceramic tube and preparation method and application thereof |
| CN114100567A (en) * | 2021-06-30 | 2022-03-01 | 山东亮剑环保新材料有限公司 | Preparation method of porous spherical molecular sieve VOCs adsorbent |
| CN114225907A (en) * | 2021-12-22 | 2022-03-25 | 江西艾斯新材料科技有限公司 | Polycrystalline high-silicon honeycomb molecular sieve adsorbent and preparation method thereof |
| CN114223940A (en) * | 2021-12-22 | 2022-03-25 | 江西艾斯新材料科技有限公司 | Novel zeolite molecular sieve adsorbent cigarette holder filter |
| CN115925437A (en) * | 2022-12-08 | 2023-04-07 | 上海绿强新材料有限公司 | Integral honeycomb molecular sieve for removing VOCs (volatile organic compounds), and preparation and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020003890A (en) * | 2000-06-21 | 2002-01-16 | 황해웅 | Method for treating toxic compounds by using rare earth ion-exchanged catalyst in non-thermal plasma |
| CN103641507A (en) * | 2013-11-28 | 2014-03-19 | 江苏高淳陶瓷实业有限公司 | Zeolite-attapulgite composite honeycomb body and preparation method thereof |
| CN104477937A (en) * | 2014-12-05 | 2015-04-01 | 上海绿强新材料有限公司 | Mesoporous X-type molecular sieve, adsorbent based on molecular sieve, and preparation and application thereof |
| CN105618159A (en) * | 2015-12-21 | 2016-06-01 | 北京化工大学 | Forming method of integral cellular molecular sieve based catalyst |
| CN105944665A (en) * | 2016-06-21 | 2016-09-21 | 江西博鑫精陶环保科技有限公司 | Preparation method of molecular sieve concentration rotating wheel adsorption packing for treating VOCs |
| CN107029668A (en) * | 2017-06-12 | 2017-08-11 | 芜湖格丰环保科技研究院有限公司 | A kind of honeycomb type molecular sieve active carbon compound adsorbent, preparation method and applications |
| CN111017949A (en) * | 2019-11-29 | 2020-04-17 | 南通斐腾新材料科技有限公司 | Preparation method of hollow zeolite |
| KR20200055847A (en) * | 2018-11-13 | 2020-05-22 | 주식회사 아이비머티리얼즈 | Manufacturing method of extruding zeolite honeycomb structure for adsorbing VOCs and zeolite honeycomb structure thereof |
-
2020
- 2020-10-30 CN CN202011186343.3A patent/CN112246217A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020003890A (en) * | 2000-06-21 | 2002-01-16 | 황해웅 | Method for treating toxic compounds by using rare earth ion-exchanged catalyst in non-thermal plasma |
| CN103641507A (en) * | 2013-11-28 | 2014-03-19 | 江苏高淳陶瓷实业有限公司 | Zeolite-attapulgite composite honeycomb body and preparation method thereof |
| CN104477937A (en) * | 2014-12-05 | 2015-04-01 | 上海绿强新材料有限公司 | Mesoporous X-type molecular sieve, adsorbent based on molecular sieve, and preparation and application thereof |
| CN105618159A (en) * | 2015-12-21 | 2016-06-01 | 北京化工大学 | Forming method of integral cellular molecular sieve based catalyst |
| CN105944665A (en) * | 2016-06-21 | 2016-09-21 | 江西博鑫精陶环保科技有限公司 | Preparation method of molecular sieve concentration rotating wheel adsorption packing for treating VOCs |
| CN107029668A (en) * | 2017-06-12 | 2017-08-11 | 芜湖格丰环保科技研究院有限公司 | A kind of honeycomb type molecular sieve active carbon compound adsorbent, preparation method and applications |
| KR20200055847A (en) * | 2018-11-13 | 2020-05-22 | 주식회사 아이비머티리얼즈 | Manufacturing method of extruding zeolite honeycomb structure for adsorbing VOCs and zeolite honeycomb structure thereof |
| CN111017949A (en) * | 2019-11-29 | 2020-04-17 | 南通斐腾新材料科技有限公司 | Preparation method of hollow zeolite |
Non-Patent Citations (1)
| Title |
|---|
| 张运庭等: "《避雷器设计工艺与实验》" * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113019316A (en) * | 2021-04-06 | 2021-06-25 | 山东众智发环境科技有限公司 | Integral honeycomb molecular sieve adsorbent capable of being regenerated in circulating mode and preparation method thereof |
| CN113171748A (en) * | 2021-05-25 | 2021-07-27 | 山东亮剑环保新材料有限公司 | High surface area honeycomb zeolite and production method thereof |
| CN114100567A (en) * | 2021-06-30 | 2022-03-01 | 山东亮剑环保新材料有限公司 | Preparation method of porous spherical molecular sieve VOCs adsorbent |
| CN113426406A (en) * | 2021-07-09 | 2021-09-24 | 山东亮剑环保新材料有限公司 | High-strength low-density honeycomb zeolite and production method thereof |
| CN113426407A (en) * | 2021-07-09 | 2021-09-24 | 山东亮剑环保新材料有限公司 | Zero-drying-period honeycomb zeolite and preparation method thereof |
| CN113578258A (en) * | 2021-07-09 | 2021-11-02 | 山东亮剑环保新材料有限公司 | Spherical zeolite VOCs adsorbent with core-shell structure and preparation method thereof |
| CN113368813A (en) * | 2021-07-28 | 2021-09-10 | 山东亮剑环保新材料有限公司 | Method for preparing honeycomb molecular sieve adsorbent by using red mud |
| CN113813988A (en) * | 2021-10-27 | 2021-12-21 | 江西省杰夫环保科技有限公司 | Preparation method of high-efficiency microcrystalline molecular sieve catalyst for fine desulfurization |
| CN113979779A (en) * | 2021-11-26 | 2022-01-28 | 江阴金属材料创新研究院有限公司 | Diatom active ceramic tube and preparation method and application thereof |
| CN113979779B (en) * | 2021-11-26 | 2022-12-16 | 江阴金属材料创新研究院有限公司 | Diatom active ceramic tube and preparation method and application thereof |
| CN114225907A (en) * | 2021-12-22 | 2022-03-25 | 江西艾斯新材料科技有限公司 | Polycrystalline high-silicon honeycomb molecular sieve adsorbent and preparation method thereof |
| CN114223940A (en) * | 2021-12-22 | 2022-03-25 | 江西艾斯新材料科技有限公司 | Novel zeolite molecular sieve adsorbent cigarette holder filter |
| CN115925437A (en) * | 2022-12-08 | 2023-04-07 | 上海绿强新材料有限公司 | Integral honeycomb molecular sieve for removing VOCs (volatile organic compounds), and preparation and application thereof |
| CN115925437B (en) * | 2022-12-08 | 2023-12-19 | 上海绿强新材料有限公司 | Integral honeycomb molecular sieve for VOCs removal and preparation and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112246217A (en) | Integral honeycomb molecular sieve for purifying VOCs (volatile organic compounds) in zeolite adsorption rotating wheel and preparation method thereof | |
| CN111203175B (en) | Honeycomb hydrophobic molecular sieve adsorbent and preparation method and application thereof | |
| CN106975493A (en) | A kind of honeycomb catalyst materials and its forming method | |
| CN111036192B (en) | Coating type wear-resistant vanadium denitration catalyst and preparation method and application thereof | |
| US20190275495A1 (en) | Activated carbon filter articles and methods of making and their use | |
| CN105960386B (en) | Compositions for improved substrate manufacture | |
| CN111036187B (en) | Honeycomb carrier and preparation method and application thereof | |
| EP0706824A1 (en) | Low expansion molecular sieves and method of making same | |
| KR20020040821A (en) | Method for preparing a low acidity refractory oxide-bound zeolite catalyst | |
| US6365259B1 (en) | High strength/high surface area alumina ceramics | |
| CN105618159A (en) | Forming method of integral cellular molecular sieve based catalyst | |
| JP2011509822A (en) | Method for producing honeycomb-type catalyst for reducing nitrogen oxides using zeolite | |
| EP0552715B1 (en) | A NOx removal catalyst containing an inorganic fiber | |
| CN111517822A (en) | Flat ceramic membrane support and preparation method thereof | |
| CN113019316A (en) | Integral honeycomb molecular sieve adsorbent capable of being regenerated in circulating mode and preparation method thereof | |
| CN114605168A (en) | Preparation method of air filter material based on pansy porous ceramic and zeolite | |
| CN111908937A (en) | Honeycomb ceramic carrier for VOCs purification catalyst and preparation method thereof | |
| CN107983326B (en) | Preparation method of hydrogenation catalyst forming carrier | |
| US20120202680A1 (en) | Method for the preparation of a zeolite-based monolithic structure | |
| KR101687605B1 (en) | Process of preparing catalyst for removing N2O | |
| CN109772430A (en) | A kind of molding denitrating catalyst of the wide temperature of high-strength light | |
| KR20020011561A (en) | A mesoporus zeolite honeycomb and a method for producing thereof | |
| CN107983405B (en) | Preparation method of hydrogenation catalyst | |
| CN114870824B (en) | Forming method and application of alumina carrier | |
| KR20140143031A (en) | Three Way Catalyst Using Pyrophyllite Minerals and Manufacturing Method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210122 |
|
| RJ01 | Rejection of invention patent application after publication |