CN102725062B - Activated carbon, zeolite and the compositions of Fe ion is included for vehicle ride room air filter - Google Patents
Activated carbon, zeolite and the compositions of Fe ion is included for vehicle ride room air filter Download PDFInfo
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- CN102725062B CN102725062B CN201080062524.3A CN201080062524A CN102725062B CN 102725062 B CN102725062 B CN 102725062B CN 201080062524 A CN201080062524 A CN 201080062524A CN 102725062 B CN102725062 B CN 102725062B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 179
- 239000000203 mixture Substances 0.000 title claims abstract description 103
- 239000010457 zeolite Substances 0.000 title claims abstract description 103
- 150000002500 ions Chemical class 0.000 title claims abstract description 23
- 238000004378 air conditioning Methods 0.000 claims abstract description 7
- 239000011148 porous material Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 229910052593 corundum Inorganic materials 0.000 claims description 9
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 9
- 239000003610 charcoal Substances 0.000 claims description 8
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Inorganic materials [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910052681 coesite Inorganic materials 0.000 claims description 3
- 229910052906 cristobalite Inorganic materials 0.000 claims description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 3
- 229910001448 ferrous ion Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000002209 hydrophobic Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- -1 iron ion Chemical class 0.000 claims description 3
- 229910052904 quartz Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 229910052682 stishovite Inorganic materials 0.000 claims description 3
- 229910052905 tridymite Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 38
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 25
- YXFVVABEGXRONW-UHFFFAOYSA-N toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 24
- 239000000356 contaminant Substances 0.000 description 22
- IKHGUXGNUITLKF-UHFFFAOYSA-N acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 20
- 238000001914 filtration Methods 0.000 description 17
- 239000003344 environmental pollutant Substances 0.000 description 15
- 231100000719 pollutant Toxicity 0.000 description 15
- 239000003463 adsorbent Substances 0.000 description 13
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 12
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 12
- IJDNQMDRQITEOD-UHFFFAOYSA-N butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 10
- 239000001273 butane Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical group O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atoms Chemical group O* 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
Abstract
The present invention relates to a kind of compositions (1), including activated carbon (4) and zeolite (2), described zeolite (2) includes Fe ion.The invention still further relates to a kind of for ventilating, heat and/or the air filter (12) including described compositions (1) of air conditioning system.
Description
The present invention relates in the air filter of the ventilation for motor vehicles, heating and/or air conditioning system
Including activated carbon, zeolite and the compositions of Fe ion.The invention further relates to include this compositions
Air filter.
Passenger compartment filters and is used for filtering particle form pollutant and gas pollutant.Two are had on current market
Plant filter.First, particulate filter, it is only for filtering 0.1 to 10 μm and bigger air
Grain.Second, the filter of combination, it acts in two ways, not only filters granule, but also filters
Maybe when for ventilating, heat and/or time the air flap of air conditioning system is set to circulate outside passenger compartment
From gas and the abnormal smells from the patient of passenger compartment itself.
Now, the filter of combination uses activated carbon to purify the gas of air and abnormal smells from the patient (by various collection
The nonwoven layers that this carbon-coating is clipped in the middle by one-tenth method).Following four kinds of test gases are retained generally according to it
Affinity select use activated carbon: toluene, normal butane, nitrogen dioxide and sulfur dioxide.These
Test is mainly carried out according to the part 2 of ISO-11155.Four kinds of this standard description use high concentration aforementioned
The method of gas.Every time to a kind of gas test strainability, and do not use mixture.
The test result using this standard to obtain shows the carbon and the bulking property for ratings filter used
The affinity of the change between the pollutant of energy.Therefore, some pollutant-standard testing gas or other
Stop gas-usual carbon part only used.Additionally, along with activated carbon is aging, i.e. inhale along with it
Receiving pollutant, performance is with the rate reduction of change, because the active site of carbon is occupied.Root is gone back in this reduction
According to carbon and the gas of test, and the humidity that stood of carbon and temperature conditions and change.
For improving the strainability of air filter, it has been suggested that use activated carbon and zeolite.Actual
On, some zeolites have excellent filtration affinity for the gas pollutant of such as aldehydes.This purposes
Example be described in document EP1121978.Which describe use having Si/Al ratio is 30 to 190
And the zeolite of the crystal structure ZSM-5 (also known as Pentasil) of preferably 55 to 90.The zeolite used includes
Quaternary ammonium (NH4 +), to improve its affinity to aldehydes.
Other document also discuss and zeolite is used for filtering solution.Therefore, United States Patent (USP) US 2005075238
The zeolite mixed with carbon and lithium is used for VOC, CO, CO by suggestion2The filtration of combination and dehumidifying
Purposes.But, in the publication, unique function of zeolite is dehumidifying rather than absorbs as carbon
VOC (VOC, including the group of aldehydes).
The applicant has managed to improve the filtration of particulate pollutant and particularly gas pollutant.Specifically
Ground, the applicant has managed to obtain a kind of compositions filtering maximum gas pollutant, and to make us
The satisfied life-span but do not reduce the inherent filtration performance of each component forming said composition and realize this.
Being studied for this, described research is to evaluate activated carbon and new suction according to aforementioned ISO standards
Attached dose, but also because according to using a series of low concentrations and the pollutant of form of mixtures, the most still
The new method of monitoring test temperature and humidity evaluates this activated carbon and new adsorbent.This research allows simulation
The physical condition of the use such as run in Polluted area.The property of new carbon can be evaluated from this research
Can, but it allows also to selection and has the zeolite of specific affinity to selected pollutant.
Therefore, the present invention relates to a kind of compositions including activated carbon and zeolite, this zeolite include Fe from
Son.
According to as a result, it is possible to select zeolite, ion and the particular combination of activated carbon.This particular combination shows
Show and its windfall effect how well filtering contaminants gas is relevant.Said composition filtering contaminants gas
There is synergism.It practice, compared with the summation of activated carbon and the respective effect of zeolite, said composition
Provide the filter effect preferably for contaminant gases.
Advantageously, zeolite includes the Fe ion of 0.1 to 1.2 quality %.
Advantageously, Fe ion is iron ion or ferrous ion.
Advantageously, Fe ion is maintained at inside zeolite.
Advantageously, zeolite has ZSM-5 crystal structure.
Advantageously, zeolite has the SiO of 60 to 202/Al2O3Mol ratio.
Advantageously, zeolite has the SiO of 50 to 302/Al2O3Mol ratio.
Advantageously, zeolite has the SiO of 402/Al2O3Mol ratio.
Advantageously, zeolite is hydrophobic.
Advantageously, zeolite is 5 to 35% with the mass ratio of activated carbon.
Advantageously, zeolite is 10 to 20% with the mass ratio of activated carbon.
Advantageously, zeolite is 15% with the mass ratio of activated carbon.
Advantageously, activated carbon has 1004m2The B.E.T. surface area of/g, 0.356cm3The porous body of/g
Long-pending, 0.422cm3The total pore volume of/g and
Mean pore sizes.
Advantageously, activated carbon has 960m2The B.E.T. surface area of/g, 0.344cm3The micro pore volume of/g,
0.404cm3The total pore volume of/g and
Mean pore sizes.
Advantageously, activated carbon has 969m2The B.E.T. surface area of/g, 0.327cm3The micro pore volume of/g,
0.346cm3The total pore volume of/g and
Mean pore sizes.
Advantageously, activated carbon is the mixture of different activated carbons.
The invention still further relates to a kind of for ventilating, heat and/or the air filter of air conditioning system, it includes
According to any one compositions in preceding feature.
Advantageously, zeolite and activated carbon are arranged in monolayer.
When reading description for information purposes given below and accompanying drawing, other of the present invention is special
Levy, details and advantage will become apparent from, wherein:
-Fig. 1 shows the structure of pentasil unit
-Fig. 2 shows the structure of zeolite
The breakthrough curve of-Fig. 3 display toluene at the temperature of 22 DEG C and the humidity of 50%
(breakthrough curve)
The breakthrough curve of-Fig. 4 display normal butane at the temperature of 22 DEG C and the humidity of 50%
The breakthrough curve of-Fig. 5 display nitrogen dioxide at the temperature of 22 DEG C and the humidity of 50%
The breakthrough curve of-Fig. 6 display acetaldehyde at the temperature of 22 DEG C and the humidity of 50%
The breakthrough curve of-Fig. 7 display hydrogen sulfide at the temperature of 22 DEG C and the humidity of 50%
-Fig. 8 shows other breakthrough curve of the hydrogen sulfide under 22 DEG C and 50% humidity
-Fig. 9 shows the adsorption capacity of each compositions of the present invention
-Figure 10 display is at the block diagram of 0 little strainability constantly
-Figure 11 display is at the block diagram of 30 little strainabilities constantly
-Figure 12 display is at the block diagram of 60 little strainabilities constantly
-Figure 13 display includes the view of the filter of said composition
-Figure 14 is shown as the cross-sectional view of Figure 13 of the first modification
-Figure 15 is shown as the cross-sectional view of Figure 13 of the second embodiment modification
The compositions 1 of the present invention includes at least two adsorbent.Compositions 1 includes the (boiling of the first adsorbent
Stone 2) and the second adsorbent (activated carbon 4).Said composition for the ventilation of filter motor-car, heating and/
Or the contaminant gases in air conditioning system.More specifically, said composition is for the air filter of motor vehicles.
Zeolite 2 has ZSM-5 crystal structure.This ZSM-5 structure (knot of also referred to as pentasil
Structure) include some pentasil unit 6 of being connected together by oxygen bridging.Pentasil unit 6 includes eight
Pentagon ring 8.The summit of these rings 8 is formed by aluminum (Al) or silicon (Si).Oxygen atom (O) connects described top
Point.Therefore, zeolite ZSM-5 includes Al2O3Molecule and SiO2Molecule.Fig. 1 shows and includes eight rings 8
Pentasil unit 6.
All pentasil 6 unit of zeolite 2 forms cage (cage) 10, wherein can accommodate ion.According to
The present invention, the ion (hereinafter referred to as Fe ion) of ferrum is contained therein." Fe ion " is understood to mean that
Ferrous ion (Fe2+Ion) and iron ion (Fe3+Ion).Fig. 2 explanation connects shape by pentasil unit
Become cage 10.The size of cage be 5.4 to
(angstrom).
The zeolite 2 of the present invention is hydrophobic zeolite.Additionally, zeolite 2 has the SiO of 20 to 602/Al2O3
Ratio.Preferably, this ratio is for 30 to 50.According to the present invention, there is the SiO of 402/Al2O3The zeolite 2 of ratio
The result that test provides best is filtered for contaminant gases.These results will describe subsequently.
Zeolite 2 includes Fe ion.Mass ratio between Fe ion and zeolite is 0.1 to 1.2%.Preferably
Ground, described mass ratio is 0.5%.At the remainder of description, term " zeolite " is used for having bag
Include the zeolite of the crystal structure ZSM-5 of Fe ion.
Compositions 1 is formed by the granule of zeolite 2 and activated carbon 4.The granularity of compositions 1 is diameter 300
To 600 μm.Especially, activated carbon has the distribution pattern of 300 μm, and zeolite pair for its granularity
There is the distribution pattern of 600 μm in its granularity.In other words, activated carbon is generally of the diameter of 300 μm,
And zeolite is generally of the diameter of 600 μm.Select zeolite and the diameter value of activated carbon, to allow to manufacture
Uniform mixing and more preferable molding during technique.Therefore, make zeolite mix with activated carbon not cause additionally
Pressure drop or operating difficulties.
Compositions 1 includes activated carbon 4.Test two kinds of different activated carbons.The the first activated carbon 4a used
There is following physical property: 1004m2The B.E.T. surface area of/g, 0.356cm3The micro pore volume of/g, 0.422
cm3The total pore volume of/g and
Mean pore sizes.The the second activated carbon 4b used has following physics
Character: 960m2The B.E.T. surface area of/g, 0.344cm3The micro pore volume of/g, 0.404cm3/ g's is total
Pore volume and
Mean pore sizes.
Fig. 3 to 7 be illustrate for single activated carbon 4, single zeolite 2 and include described zeolite and
The chart of the contaminant gases breakthrough curve of the compositions of activated carbon 4.Breakthrough curve illustrates by selected
Effects of one or more absorbent filtering contaminant gases.On the y axis, we obtain including one
Or the contaminant gases concentration (Cs) of the filter downstream of multiple adsorbent and the pollutant gas of filter upstream
Ratio between bulk concentration (Ce).Term " downstream " and " upstream " are according to through filter Residual contamination
The moving direction of the air stream of thing gas extends.Therefore, contaminant gases concentration is the highest, by a kind of or
The efficiency of multiple adsorbent contaminant gases is the lowest.The test result presented in these charts is to adopt
Complete with low concentration mixture.
In figure 3, contaminant gases is toluene.Activated carbon 4 filter toluene well, because its concentration
Never greater than 0.3.Individually zeolite is clearly not enough to filter toluene, Cs/Ce than peak value more than 1.2.
According to the compositions of the present invention, it more efficiently filters than single activated carbon 4.
In the diagram, contaminant gases is normal butane.This chart shows and single activated carbon 4 or independent
Zeolite compare, the combination of zeolite 2 and activated carbon 4 is more efficient to the filtration of normal butane.More specifically,
Compared with the filtration added up with activated carbon 4 and zeolite 2, filter more preferably according to the compositions of the present invention.
Therefore, activated carbon 4 is made to there is synergism with zeolite 2 combination.
In Figure 5, contaminant gases is nitrogen dioxide (NO2).Individually zeolite 2 or individually activity
Charcoal 4 acts on the effect significantly less than the compositions according to the present invention to nitrogen dioxide filtration.Nitrogen dioxide
The result filtered shows according to there is synergism in the compositions of the present invention, and said composition is not
The simple juxtaposition of two kinds of adsorbents.It practice, adsorbent to be exposed to the air stream comprising nitrogen dioxide
In after 60 hours, compositions 1 has a Cs/Ce ratio less than 0.2, but zeolite 2 has and is higher than
The Cs/Ce ratio of 0.8, and activated carbon 4 has the Cs/Ce ratio higher than 0.3.
In figure 6, contaminant gases is acetaldehyde.Compositions 1 than single activated carbon 4 or is individually boiled
Stone 2 preferably filters acetaldehyde.Similarly, compositions 1 has the Cs/Ce ratio less than 0.7, but single
Only zeolite has the Cs/Ce ratio of 0.7.Thus, it will be appreciated that the mixture of zeolite and activated carbon 4 improves
The zeolite effect to acetaldehyde itself.
In the figure 7, contaminant gases is hydrogen sulfide (H2S).Compared to single zeolite 2 or single
The simple juxtaposition of the filter result of activated carbon 4, the mixture of zeolite 2 and activated carbon 4 is at this pollutant
The filtration of gas shows the improvement of essence.
According to Fig. 3 to 7, it should be understood that make zeolite mix with activated carbon and significantly improve it for various pollutant
The fact that the filter capacity of gas.In other words, with include a zeolite layer and an active carbon layer (wherein
Two-layer is physical separation within filter) filter compare, according to the composition for improved of the present invention for
The filter efficacy of contaminant gases.It is used alone activated carbon and removes contaminant gases (toluene, just fully
Butane, NO2).Above-mentioned gas is showed by zeolite wants specific activity charcoal difference many, but it adsorbs for aldehyde,
And more specifically for absorption acetaldehyde and hydrogen sulfide be favourable.
Therefore, mixing both adsorbents improve adsorbing material effect for some specific pollutants,
Keep the same performance for other pollutant simultaneously.
Therefore, although add zeolite, but maintain for toluene, normal butane and NO2Same performance.
Significantly improve the performance for acetaldehyde.This mixture is to H2S is also effective.So, this solution
Scheme is preferably protected human health and keeps comfortable, reduces unpleasant taste simultaneously.
In order to not reduce the performance of activated carbon and in order to be benefited from the interpolation of zeolite, the ratio of zeolite is necessary
It is 5 to 35 quality %, preferably 10 to 20 quality %.It is further preferred that the ratio of zeolite is 15 mass
%。
Fig. 8 explanation is for including the first compositions 1a of zeolite 2 and the first activated carbon 4a and including zeolite
2 and the second hydrogen sulfide (H of the second compositions 1b of activated carbon 4b2S) breakthrough curve.Although the first combination
Thing 1a provides excellent filter result for hydrogen sulfide after 30 hours, but the second compositions 1b
More efficiently filter.After 30 hours, the first compositions 1a has the Cs/Ce ratio less than 0.4,
And the second compositions 1b has the Cs/Ce ratio less than 0.2.Show from these results: for compositions
The selection of each adsorbent of 1 is carried out cautiously, and based on the compellent filtration knot to contaminant gases
Really.Therefore, in addition to there is ZSM-5 structure and include the specific selection of zeolite 2 of Fe ion, live
The selection of property charcoal the most more improves the synergism of the adsorbent of compositions 1.It practice, according to Fig. 3
To 8 apparently zeolite 2 and the second activated carbon 4b mixture to test all contaminants gas have
Good strainability.While it is true, include that the first compositions 1a of zeolite 2 and the first activated carbon 4a carries
For score from zeolite 2 and activated carbon 4 better performance.Therefore, with single zeolite and individually live
Property charcoal is compared, and this first compositions 1a also has synergism.
Comparative result between the compositions according to the present invention that Fig. 9 to 12 explanation is different.First combination
Thing 1a includes the first activated carbon 1a and zeolite 2；The mass ratio of zeolite 2 and the first activated carbon 1a is 33%.
Second compositions 1b includes the second activated carbon 1b and zeolite 2；Zeolite and the mass ratio of the second activated carbon 2a
It is 33%.3rd compositions 1c includes the second activated carbon 1b and zeolite 2；Zeolite and the second activated carbon 2a
Mass ratio be 15%.
Fig. 9 shows the adsorption capacity of each compositions tested for various contaminant gases.As can be seen here
3rd compositions 1c is with best adsorption capacity, especially for acetaldehyde, hydrogen sulfide, two
Nitrogen oxide, normal butane and toluene.
The test of the strainability result providing Figure 10 to 12 is at low concentration (about tens μ g/m3, use
In motor vehicles) under and be mixing.Therefore, the single sky of all contaminants gas to be tested is comprised
Air-flow is through the air filter including the compositions according to the present invention.Additionally, the contaminant gases of test
As follows: toluene, normal butane, nitrogen dioxide, acetaldehyde and hydrogen sulfide.
Figure 10 shows that the 3rd compositions 1c was 0 little (i.e. air flowed through the moment of air filter) constantly
Produce and preferably filter than single zeolite or single activated carbon 4.It practice, for toluene, the 3rd
The strainability of compositions 1c is 83, and it is 60 for zeolite 2, and for activated carbon 4, it is 80.
This point is the most correct for normal butane and hydrogen sulfide.For nitrogen dioxide, the 3rd compositions 1c and work
Property charcoal 4 performance identical (value: 92)；And the 3rd the performance of compositions 1c significantly better than the performance of zeolite 2.
Figure 11 is given at the result of 30 little strainabilities constantly.For toluene, nitrogen dioxide and sulfuration
Hydrogen, the 3rd compositions 1c performance is than other compositions 1a, 1b and ratio single zeolite 2 and single
Activated carbon 4 is more preferable.For acetaldehyde, the filtration of the 3rd compositions 1c is suitable with single zeolite.
In fig. 12, the result at 60 little strainabilities constantly illustrates the fact: with other group
Compound 1a, 1b, single zeolite are compared with individually activated carbon, the 3rd compositions 1c for toluene,
Normal butane, nitrogen dioxide, acetaldehyde and hydrogen sulfide have best strainability.
The invention still further relates to a kind of for ventilating, heat and/or the air filter 12 of air conditioning system, its
Including the compositions according to the present invention.Air filter 12 illustrated in fig. 13 includes filter medium 14,
Wherein accommodate compositions 1.Filter medium 14 is the non-woven material with some foldings (fold).As previously
Described, compositions 1 is the mixture of zeolite 2 and activated carbon 4, and wherein said mixture provides ratio by list
Only zeolite 2 or the more preferable strainability of strainability that individually activated carbon 4 obtains.Zeolite 2 includes
Fe ion.Therefore compositions 1 is formed by monolayer as described in Figure 13." monolayer " is interpreted as so
The fact: zeolite and activated carbon mix and do not have physical barrier they to be separated.In air mistake
In filter, said composition is distributed in whole filter medium interior (Figure 14) or is distributed in filter medium by bar
(Figure 15).As a kind of modification, said composition is arranged on filter medium.
As a kind of modification, said composition includes at least the 3rd adsorbent.Such as, said composition includes boiling
Stone, activated carbon, described activated carbon is the mixture of different activated carbons.Therefore, said composition includes three
Kind adsorbent: zeolite and two kinds of different activated carbons." different " are understood to mean that formation mixture
The fact that activated carbon has different physical properties.Such as, Mixture of Activated Carbon is by the first activated carbon 4a
Formed with the second activated carbon 4b.Also the 3rd activated carbon 4c with following characteristic is used.3rd activity
Charcoal 4c has following physical property: 0.327cm3The micro pore volume of/g, 0.346cm3Total porous body of/g
Long-pending, the micro pore volume percentage ratio of 95%,
Mean pore sizes and 969m2The B.E.T. surface area of/g.
This activated carbon is commonly called " activated carbon NC60 ".Therefore Mixture of Activated Carbon is the first and second work
Property charcoal 4a and 4b, or first and the 3rd activated carbon 4a and 4c, or second and the 3rd activated carbon 4b and 4c
Mixture.
Claims (16)
1. a compositions (1), including activated carbon (4) and zeolite (2), is characterised by that zeolite (2) includes Fe
Ion, wherein the mass ratio of zeolite (2) and activated carbon (4) is 5 to 35%, and zeolite (2) include 0.1 to
The Fe ion of 1.2 mass %.
2., in the compositions (1) as described in front claim, wherein Fe ion is iron ion or ferrous ion.
3. the compositions (1) as described in arbitrary in claim 1 and 2, wherein Fe ion is maintained at zeolite
(2) in.
4. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite (2) has ZSM-5
Crystal structure.
5. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite (2) have 60 to
The SiO of 202/Al2O3Mol ratio.
6. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite has 50 to 30
SiO2/Al2O3Mol ratio.
7. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite (2) has 40
SiO2/Al2O3Mol ratio.
8. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite (2) is hydrophobic.
9. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite and the matter of activated carbon
Amount ratio is 10 to 20%.
10. the compositions (1) as described in arbitrary in claim 1 and 2, wherein zeolite and the matter of activated carbon
Amount ratio is 15%.
11. the compositions (1) as described in arbitrary in claim 1 and 2, wherein activated carbon has 1004
m2The B.E.T. surface area of/g, 0.356cm3The micro pore volume of/g, 0.422cm3The total pore volume of/g andMean pore sizes.
12. compositionss (1) as described in arbitrary in claim 1 and 2, wherein activated carbon has 960m2/g
B.E.T. surface area, 0.344cm3The micro pore volume of/g, 0.404cm3The total pore volume of/g and
Mean pore sizes.
13. compositionss (1) as described in arbitrary in claim 1 and 2, wherein activated carbon has 969m2/g
B.E.T. surface area, 0.327cm3The micro pore volume of/g, 0.346cm3The total pore volume of/g and
Mean pore sizes.
14. compositionss (1) as described in arbitrary in claim 1 and 2, wherein activated carbon is different work
The mixture of property charcoal.
15. 1 kinds for ventilating, heating and/or the air filter (12) of air conditioning system, including such as front
Arbitrary described compositions (1) in claim.
16. at the air filter as described in front claim, and wherein zeolite and activated carbon are arranged in monolayer
In.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0905736A FR2953152B1 (en) | 2009-11-27 | 2009-11-27 | COMPOSITION COMPRISING ACTIVE CARBON, ZEOLITE AND FE IONS FOR VEHICLE ROAD AIR FILTER |
| FR0905736 | 2009-11-27 | ||
| PCT/EP2010/068339 WO2011064346A1 (en) | 2009-11-27 | 2010-11-26 | Composition including an activated carbon, a zeolite and fe ions, for a vehicle passenger compartment air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102725062A CN102725062A (en) | 2012-10-10 |
| CN102725062B true CN102725062B (en) | 2016-11-30 |
Family
ID=
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| CN1646209A (en) * | 2002-04-09 | 2005-07-27 | 犹德有限公司 | Denitrification method |
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| EP1121978A2 (en) * | 2000-01-31 | 2001-08-08 | Mazda Motor Corporation | Adsorption of aldehyde with adsorbent containing zeolite |
| CN1646209A (en) * | 2002-04-09 | 2005-07-27 | 犹德有限公司 | Denitrification method |
| CN1925903A (en) * | 2004-03-31 | 2007-03-07 | 大金工业株式会社 | Gas purifier |
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