CN113856625A - Composite carrier and preparation method and application thereof - Google Patents

Composite carrier and preparation method and application thereof Download PDF

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Publication number
CN113856625A
CN113856625A CN202111152931.XA CN202111152931A CN113856625A CN 113856625 A CN113856625 A CN 113856625A CN 202111152931 A CN202111152931 A CN 202111152931A CN 113856625 A CN113856625 A CN 113856625A
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composite carrier
silica gel
activated carbon
coarse
pore
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Inventor
陈剑锋
奉青山
靳君毅
黄升阳
王冀
王利仁
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Freudenberg Apollo Filtration Technologies Co Ltd
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Foshan Shunde Apollo Air Cleaner Co Ltd
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    • 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
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/72—Organic compounds not provided for in groups B01D53/48 - B01D53/70, e.g. hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • 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
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • 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
    • B01J20/12—Naturally occurring clays or bleaching earth
    • 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

Abstract

The invention provides a composite carrier and a preparation method and application thereof, wherein the composite carrier comprises the following raw materials in percentage by mass: 20-70% of activated carbon, 20-70% of coarse-pore silica gel, 1-30% of clay and the balance of water. The composite carrier comprises activated carbon and coarse silica gel, the coarse silica gel provides support for the mesopore diameter of the composite carrier, the load modification of chemical agents and the transportation of odor molecules are facilitated, the load capacity of the chemical agents and the odor adsorption speed are increased, the activated carbon provides support for the micropore diameter of the composite carrier, a containing place is provided for the adsorbed odor molecules, and the activated carbon and the adsorbed odor molecules are matched and cooperate to increase the ratio of the pore diameter for carrying the agents.

Description

Composite carrier and preparation method and application thereof
Technical Field
The invention relates to the field of copolyester materials, in particular to a composite carrier and a preparation method and application thereof.
Background
The coal columnar carbon has the characteristics of reasonable pore structure, good adsorption performance, high mechanical strength, easy repeated regeneration, low manufacturing cost and the like, and is widely used in the field of air purification, and different odor components such as ethanethiol and trimethylamine are mostly present in refrigerators or kitchens due to the difference of actual environments; most of formaldehyde appears in newly decorated rooms; ammonia, acetic acid and acetaldehyde mostly appear in various smoking places and the like, in order to selectively remove odors of different environments, various chemical agents are carried on coal columnar carbon for modification, wherein the pore structure and the surface functional group of the carrier play a key role in the loading capacity and odor removal performance of the chemical agents.
The defects of the existing product are mainly expressed in two aspects: a. the ratio of pore diameters required for a carrier carrying a chemical agent is low, and is only about 10%. The carrier for carrying chemical agents meets the requirement that the pore diameter is mainly concentrated in a mesopore and macropore, and plays a role of an odor molecule channel and increases the adsorption speed while meeting the requirement of agent loading. The conventional adsorbing material of the filter element of the air purifier in the market is coal columnar carbon, and the pore diameter (5-50nm) of the conventional adsorbing material of the filter element of the air purifier, which can be used for carrying a medicament, is about 10 percent. It cannot satisfy chemical modification and rapid passage of odor molecules. b. The surface of the existing coal columnar carbon contains various oxygen-containing and nitrogen-containing functional groups, so that the activity of the chemical is reduced due to the fact that the surface of the existing coal columnar carbon easily reacts with a loaded chemical, and meanwhile, the active carbon contains metal elements such as copper, iron and nickel which can play a catalytic oxidation role in the reaction of the chemical, so that the activity of the chemical is further attenuated.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide a composite carrier suitable for carrying a chemical agent, which has an increased ratio of pore diameters for carrying a chemical agent.
Another objective of the present invention is to provide a method for preparing the composite carrier.
The third purpose of the invention is to provide an application of the composite carrier.
In one aspect of the invention, the invention provides a composite carrier, which comprises the following raw materials in percentage by mass: 20-70% of activated carbon, 20-70% of coarse-pore silica gel, 1-30% of clay and the balance of water.
The composite carrier comprises the activated carbon and the coarse silica gel, the coarse silica gel provides support for the mesopore diameter of the composite carrier, the chemical agent part is more favorably provided support for the micropore diameter of the composite carrier, a containing place is provided for adsorbed odor molecules, and the active carbon and the coarse silica gel are matched and have synergistic effect to increase the ratio of the pore diameter for carrying the agent.
According to some embodiments of the invention, the activated carbon comprises one or more of coal, wood, husk and bamboo charcoal.
According to some embodiments of the invention, the activated carbon has a specific surface area of 400 to 1500m2(ii)/g; the mesh number is 150-3000 meshes; 1-20% of ash; the strength is 70 to 100 percent; 40-130% of CTC; iodine value is 400-1500 mg/g; the methylene blue adsorption value is 80-400 mg/g.
According to some embodiments of the invention, the specific surface area of the activated carbon is 1000-1500 m2(ii)/g; the mesh number is 2000-3000 meshes; 1-20% of ash; the strength is 90-100%; 80-130% of CTC; iodine value is 1000-1500 mg/g; the methylene blue adsorption value is 150-300 mg/g.
According to some embodiments of the invention, the specific surface area of the coarse-pore silica gel is 100-1000 m2(ii)/g; the mesh number is 150-3000 meshes, and the aperture is 2-10 nm; the pore volume is 0.35-1.0 ml/g.
According to some embodiments of the invention, the coarse-pore silica gel has a specific surface area of 800-1000 m2(ii)/g; the mesh number is 2000-3000 meshes, and the aperture is 8-10 nm; the pore volume is 0.65-1.0 ml/g.
According to some embodiments of the invention, the clay comprises one or more mixtures of kaolinite, petrolatum, montmorillonite, vermiculite, illite, and allophane.
According to another aspect of the present invention, there is provided a method for preparing a composite carrier, comprising the steps of:
s1: kneading, namely kneading the activated carbon, the coarse silica gel, the clay and the balance of water in mass fraction;
s2: extruding and molding, namely extruding the material kneaded in the step S1, and performing disc pressing and molding through a mold to obtain a model;
s3: and (5) air-drying, namely naturally air-drying the model extruded in the step S2 to prepare the composite carrier.
According to some embodiments of the invention, the pressing pressure of S2 is 2.5-50 MPa.
According to some embodiments of the invention, the former of S2 is cylindrical, and the cross-sectional diameter of the cylindrical former is d1Wherein d is1D is not more than 0.8mm1≤4mm。
According to the third aspect of the embodiment, the invention provides the application of the composite carrier, the composite carrier is used for loading chemical agents to form the filtering device.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a deodorizing semi-finished product according to an embodiment of the present invention;
FIG. 2 is a top view of a deodorizing intermediate according to an embodiment of the present invention;
FIG. 3 is a front view of a deodorizing semi-finished product according to an embodiment of the present invention;
fig. 4 is a partially enlarged view of a portion I in fig. 3.
Reference numerals:
100: deodorizing the finished product;
1: honeycombing; 2, compounding carrier.
Detailed Description
Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.
The composite carrier of the present invention, its preparation method and use are described below according to specific examples of the present invention. In one aspect of the invention, the invention provides a composite carrier, which comprises the following raw materials in percentage by mass: 20 to 70 percent of active carbon, 20 to 70 percent of coarse-pore silica gel, 1 to 30 percent of clay and the balance of water.
The composite carrier comprises the activated carbon and the coarse silica gel, the coarse silica gel provides support for the mesopore diameter of the composite carrier, the loading modification of chemical agents and the transportation of odor molecules are facilitated, the loading amount of the chemical agents and the adsorption speed of odor are increased, the activated carbon part provides support for the micropore diameter of the composite carrier, a containing place is provided for the adsorbed odor molecules, and the activated carbon part and the composite carrier are matched and cooperate to increase the ratio of the pore diameter for carrying the agents.
The preparation method of the coarse pore silica gel in the specific embodiment of the invention is as follows: the preparation method comprises the following steps of applying certain pressure to sodium silicate with the silicon dioxide content of 10% -30% and dilute sulfuric acid with the concentration of 20% -40% to extrude at normal temperature, generating polysilicic acid through reaction, polycondensing the polysilicic acid into silica gel under an acidic condition, aging the silica gel in an aging pool for more than 45 hours, discharging water in the aging pool, cutting the silica gel into rubber blocks with the size of 30-70 meshes by using a copper appliance, washing the rubber blocks in the aging pool again until the PH of the rubber blocks is more than 5.5, draining the rubber blocks after washing, and then using 0.1% -0.2% dilute ammonia water according to the mass ratio of 3: 1, soaking for more than 24 hours at normal temperature, discharging redundant dilute ammonia water after soaking, draining residual liquid on the surface of a rubber block by using a suction filter, then placing the rubber block into a fluidized bed furnace with the air inlet temperature of 120 ℃ for drying for 30min, and grinding the dried rubber block to be more than 150 meshes by using a high-speed grinding machine to obtain the coarse-pore silica gel used by the invention.
The coarse silica gel introduced in the specific embodiment of the invention is artificially synthesized, has more advantages than the activated carbon processed by natural raw materials, has low impurity content, does not contain various oxygen-containing and nitrogen-containing functional groups and trace metal elements, does not generate a large amount of oxygen free radicals, can better protect the activity of chemical agents, and improves the stability of the chemical agents.
According to some embodiments of the invention, the activated carbon comprises one or more of coal, wood, husk, and bamboo charcoal. According to some embodiments of the invention, the activated carbon has a specific surface area of 400-1500 m2(ii)/g; the mesh number is 150-3000 meshes; 1-20% of ash; the strength is 70 to 100 percent; 40-130% of CTC; iodine value is 400-1500 mg/g; the methylene blue adsorption value is 80-400 mg/g. Preferably, the specific surface area of the activated carbon is 1000-1500 m2(ii)/g; the mesh number is 2000-3000 meshes; 1-20% of ash; the strength is 90-100%; 80-130% of CTC; iodine value is 1000-1500 mg/g; the methylene blue adsorption value is 150-300 mg/g.
The active carbon of the specific embodiment of the invention has larger specific surface area, and the aperture range of the active carbon material is concentrated in the micropore range, thereby providing a containing place for adsorbed odor molecules and accelerating the adsorption speed.
According to some embodiments of the invention, the coarse-pore silica gel has a specific surface area of 100-1000 m2(ii)/g; the mesh number is 150-3000 meshes, and the aperture is 2-10 nm; the pore volume is 0.35-1.0 ml/g; preferably, the specific surface area of the coarse-pore silica gel is 800-1000 m2(ii)/g; the mesh number is 2000-3000 meshes, and the aperture is 8-10 nm; the pore volume is 0.65-1.0 ml/g.
The coarse silica gel provided by the embodiment of the invention has a larger specific surface area, the pore size range of the coarse silica gel comprises a mesopore and a macropore, and the pore volume is the pore volume, so that a storage space and an adsorption channel are provided for chemical agents, the coarse silica gel is more suitable for loading the chemical agents, and the adsorption speed is increased.
The composite carrier comprises activated carbon and coarse silica gel, the coarse silica gel provides support for the mesopore diameter of the composite carrier, is more favorable for the load modification of chemical agents and the transportation of odor molecules, increases the load capacity of the chemical agents and the adsorption speed of odor, and the activated carbon part provides support for the micropore diameter of the composite carrier and provides a containing place for the adsorbed odor molecules; the two cooperate with each other to act synergistically to increase the ratio of pore diameters for supporting a drug. Furthermore, the coarse pore silica gel of the embodiment of the invention is artificially synthesized silica gel, has advantages over active carbon processed from natural raw materials, has low impurity content, does not contain various oxygen-containing and nitrogen-containing functional groups and trace metal elements, does not generate a large amount of oxygen free radicals, can better protect the activity of chemical agents, and improves the stability of the chemical agents.
According to some embodiments of the invention, the clay comprises one or more mixtures of kaolinite, petrolatum, montmorillonite, vermiculite, illite, and allophane. Support is provided for kneading and molding of the composite carrier.
According to another aspect of the present invention, there is provided a method for preparing a composite carrier, comprising the steps of:
s1: kneading, namely kneading the activated carbon, the coarse silica gel, the clay and the balance of water in mass fraction;
s2: extruding and molding, namely extruding the material kneaded in the step S1, and performing disc pressing and molding through a mold to obtain a model;
s3: and (5) air-drying, namely naturally air-drying the model extruded in the step S2 to prepare the composite carrier.
According to the preparation method of the composite carrier, the composite carrier comprises the activated carbon and the coarse-pore silica gel, the activated carbon and the coarse-pore silica gel are mixed in different proportions and are extruded and molded to prepare a new porous composite carrier, and the activated carbon and the coarse-pore silica gel have the advantages of making up for the defects and complementing for the defects in the aspects of pore structure and chemical stability, so that a system which is more beneficial to forming a chemically modified filtering device is formed, and the market blank in the field of air purification at present is filled.
According to some embodiments of the present invention, the pressing pressure in step S2 is 2.5-50 MPa.
According to other embodiments of the present invention, the S2 model is cylindrical, and the cross-sectional diameter of the cylindrical model is d1Wherein d is1D is not more than 0.8mm1≤4mm。
According to the embodiment of the third aspect of the invention, the invention provides the application of the composite carrier, and the composite carrier is used for loading chemical agents to form the filtering device. The obtained filter device can be loaded with a large amount of chemical agents and ensure the activity of the chemical agents.
The following embodiments of the present invention are described in detail, and it should be noted that the following embodiments are exemplary only, and are not to be construed as limiting the present invention. In addition, all reagents used in the following examples are commercially available or can be synthesized according to methods herein or known, and are readily available to those skilled in the art for reaction conditions not listed, if not explicitly stated.
Example 1
A composite carrier comprises the following raw materials in percentage by mass: 20% of activated carbon, 50% of coarse silica gel, 10% of clay and the balance of water;
the active carbon is a mixture of coal, wood, fruit shell and bamboo charcoal in equal weight; the specific surface area of the activated carbon is 1000m2(ii)/g; the mesh number is 2000; 3% of ash; the strength is 90%; 90% of CTC; iodine value 1000 mg/g; the methylene blue adsorption value is 200 mg/g;
specific surface area of coarse-pore silica gel is 360m2(ii)/g; the mesh number is 1000 meshes, and the aperture is 5 nm; the pore volume is 0.8 ml/g;
the clay is kaolinite.
The materials are evenly kneaded in a mixer and then are put into a pressure cylinder, the applied pressure is 25Mpa, the kneaded materials are extruded to pass through a pore plate die disc with the aperture of a die hole being 2.2mm, the extruded mixture is naturally dried, and the columnar composite carrier 1 of the active carbon and the coarse-pore silica gel is prepared.
Example 2
A composite carrier comprises the following raw materials in percentage by mass: 20% of activated carbon, 70% of coarse silica gel, 1% of clay and the balance of water;
the active carbon is a shell; the specific surface area of the shell is 400m2(ii)/g; the mesh number is 150; 1% of ash; the strength is 70%; 40% of CTC; iodine value 400 mg/g; the methylene blue adsorption value is 80 mg/g;
specific surface area of coarse-pore silica gel is 100m2(ii)/g; the mesh number is 150 meshes, and the aperture is 2 nm; the pore volume is 0.35 ml/g;
the clay is a mixture of montmorillonite, vermiculite, illite and allophane in equal weight ratio.
The materials are evenly kneaded in a mixer and then are put into a pressure cylinder, the applied pressure is 50Mpa, the kneaded materials are extruded to pass through a pore plate die disc with the aperture of a die hole of 4mm, and the extruded mixture is naturally dried to prepare the columnar composite carrier 2 of the active carbon and the coarse-pore silica gel.
Example 3
A composite carrier comprises the following raw materials in percentage by mass: 40% of activated carbon, 25% of coarse-pore silica gel, 30% of clay and the balance of water;
the active carbon is wood; the specific surface area of the wood is 1000m2(ii)/g; the mesh number is 1500; 10% of ash content; strength is 80%; 85% of CTC; iodine value 900 mg/g; the methylene blue adsorption value is 240 mg/g;
specific surface area of coarse-pore silica gel 550m2(ii)/g; the mesh number is 2000 meshes, and the aperture is 6 nm; the pore volume is 0.65 ml/g;
the clay is a mixture of kaolinite and allophane in equal weight.
The materials are evenly kneaded in a mixer and then are put into a pressure cylinder, the applied pressure is 40Mpa, the kneaded materials are extruded to pass through a pore plate die disc with the aperture of a die hole being 2.0mm, the extruded mixture is naturally dried, and the columnar composite carrier 3 of the active carbon and the coarse-pore silica gel is prepared.
Example 4
A composite carrier comprises the following raw materials in percentage by mass: 30% of activated carbon, 50% of coarse silica gel, 15% of clay and the balance of water;
the active carbon is bamboo charcoal; the specific surface area of the bamboo charcoal is 1000m2(ii)/g; the mesh number is 1000 meshes; 15% of ash; the strength is 90%; 110% of CTC; iodine value 1200 mg/g; the methylene blue adsorption value is 360 mg/g;
specific surface area of coarse-pore silica gel 820m2(ii)/g; the mesh number is 2600 meshes, and the aperture is 8 nm; the pore volume is 0.75 ml/g;
the clay is a mixture of vermiculite, illite and allophane in equal parts by weight.
The materials are evenly kneaded in a mixer and then are put into a pressure cylinder, the pressure is applied to 30Mpa, the kneaded materials are extruded to pass through a pore plate die disc with the aperture of a die hole of 2.0mm, the extruded mixture is naturally dried, and the columnar composite carrier 4 of the active carbon and the coarse-pore silica gel is prepared.
Example 5
A composite carrier comprises the following raw materials in percentage by mass: 50% of activated carbon, 20% of coarse-pore silica gel, 10% of clay and the balance of water;
the active carbon is a mixture of coal, wood, fruit shell and bamboo charcoal in equal weight; the specific surface area of the activated carbon is 1000m2(ii)/g, mesh number 200, ash content 3%, strength 90%, CTC content 90%, iodine value 1000mg/g, methylene blue adsorption value 200 mg/g;
the specific surface area of the coarse-pore silica gel is 360m2The mesh number is 1000 meshes, the pore diameter is 5nm, and the pore volume is 0.8 ml/g;
the clay is kaolinite.
The materials are evenly kneaded in a mixer and then are put into a pressure cylinder, the applied pressure is 25Mpa, the kneaded materials are extruded to pass through a pore plate die disc with the aperture of a die hole being 2.2mm, the extruded mixture is naturally dried, and the columnar composite carrier 5 of the active carbon and the coarse-pore silica gel is prepared.
The pore size distributions of the activated carbons used in examples 1 to 5 (activated carbon 1, activated carbon 2, activated carbon 3, activated carbon 4, and activated carbon 5, respectively) and the resulting composite supports (composite support 1, composite support 2, composite support 3, composite support 4, and composite support 5) were compared using a BJH pore size distribution calculation model, and the results are shown in table 1 below.
TABLE 1 comparison of results
Figure BDA0003287660580000071
As can be seen from Table 1, the ratio of the pore size of the composite carrier obtained in the examples of the present invention is increased effectively compared with that of activated carbon, wherein the pore size of the composite carrier is 2-50nm (mesopores).
Comparing example 1 with example 5, it is understood that the ratio of the pore size of 2-50nm (mesopores) in the composite carrier increases as the ratio of the coarse-pore silica gel increases.
Load embodiment
Example 6
Respectively soaking 50g of the activated carbon and the composite carrier in the embodiment 5 by using 100g of a 7% diethanolamine aqueous solution, draining the excessive diethanolamine aqueous solution after soaking for 1 hour, then respectively placing the dried activated carbon and the composite carrier in a 105-degree oven for baking for 2 hours until the water content is lower than 5%, then grinding the diethanolamine-loaded activated carbon 5 and the composite carrier 5 to more than 325 meshes by using an ultrafine grinding machine, respectively adding 5g of the ground powder into 20ml of a methanol solution, carrying out ultrasonic treatment for 30 minutes, filtering, and comparing the concentration of the diethanolamine in the methanol solution by using GC-MS (gas chromatography-mass spectrometry), thereby finding that the concentration of the diethanolamine in the composite carrier is effectively improved. The diethylamine concentration vs. ratio is shown in table 2 below.
TABLE 2 comparison of diethylamine concentrations
Figure BDA0003287660580000081
Continuously taking 0.5g of the powder of the diethanol amine-loaded activated carbon 5 and the composite carrier 5 of the example 6, respectively, and flatly paving the powder on a mould in a 30L cabin, comparing the formaldehyde deodorization performance under the condition of wind circulation, and finding that the formaldehyde adsorption speed is effectively improved along with the increase of the pore proportion in the composite carrier. The formaldehyde concentration changes are shown in table 3 below.
TABLE 3 Formaldehyde concentration Change
Figure BDA0003287660580000082
The application example is as follows:
example 7
0.29Kg of the composite carrier of example 5 was filled into a PP plastic honeycomb having a size of 420.0 × 115.5 × 60.0mm, and assembled to obtain a semi-finished deodorant product 100.
The filling preparation comprises the following steps: 1) the three layers of plastic honeycombs 1 are fixed, and adhesive sticker, carbon and cloth are stuck on the plastic honeycombs.
2) Adhering the composite carrier 2 in the example 5 on the honeycomb 1, wherein the total adhering amount of the composite carrier 2 in the example 5 of the honeycomb 1 is 290 +/-10 g, and the composite carrier 2 in the example 5 of the honeycomb 1 is uniform and cannot block pores;
3) the materials are cut orderly without bad phenomena of damage, dirt, scratch, foreign matters, peculiar smell, deformation and the like. The structure is shown in fig. 1-4.
Example 8
Taking 0.5Kg of the composite carrier in the embodiment 5, soaking 1Kg of 7% aqueous solution of diethanolamine for 1 hour, draining the excess aqueous solution of diethanolamine after soaking, then respectively placing the composite carrier in a 105-DEG oven for baking for 2 hours until the water content is lower than 5%, preparing the composite carrier loaded with the diethanolamine with the particle size of 2.2mm, then weighing 0.29Kg of the composite carrier loaded with the diethanolamine, filling the composite carrier into a PP plastic honeycomb with the size of 420.0 × 115.5 × 60.0mm, and assembling to prepare the deodorant semi-finished product 100 with the formaldehyde removing function.
The filling preparation comprises the following steps: 1) fixing the three layers of plastic honeycombs 1, applying adhesive sticker, carbon and cloth;
2) the composite carrier 2 in the example 5 is arranged on the honeycomb 1, the total amount of the composite carrier 2 in the example 5 adhered to the honeycomb 1 is 290 +/-10 g, and the composite carrier 2 in the example 5 adhered to the honeycomb 1 is uniform and cannot block pores;
3) the materials are cut orderly without bad phenomena of damage, dirt, scratch, foreign matters, peculiar smell, deformation and the like. The structure is shown in fig. 1-4.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. The composite carrier is characterized by comprising the following raw materials in percentage by mass: 20 to 70 percent of active carbon, 20 to 70 percent of coarse-pore silica gel, 1 to 30 percent of clay and the balance of water.
2. The composite carrier as claimed in claim 1, wherein the activated carbon comprises one or more mixture of coal, wood, husk and bamboo charcoal.
3. The composite carrier as claimed in claim 1, wherein the activated carbon has a specific surface area of 400 to 1500m2(ii)/g; the mesh number is 150-3000 meshes; 1-20% of ash; the strength is 70 to 100 percent; 40-130% of CTC; iodine value is 400-1500 mg/g; the methylene blue adsorption value is 80-400 mg/g.
4. The composite carrier as claimed in claim 3, wherein the activated carbon has a specific surface area of 1000 to 1500m2(ii)/g; the mesh number is 2000-3000 meshes; 1-20% of ash; the strength is 90-100%; 80-130% of CTC; iodine value is 1000-1500 mg/g; the methylene blue adsorption value is 150-300 mg/g.
5. The composite carrier according to claim 1,the specific surface area of the coarse-pore silica gel is 100-1000 m2(ii)/g; the mesh number is 150-3000 meshes, and the aperture is 2-10 nm; the pore volume is 0.35-1.0 ml/g.
6. The composite carrier as claimed in claim 5, wherein the coarse-pore silica gel has a specific surface area of 800-1000 m2(ii)/g; the mesh number is 2000-3000 meshes, and the aperture is 8-10 nm; the pore volume is 0.65-1.0 ml/g.
7. The composite carrier according to claim 1, wherein the clay comprises one or more mixtures of kaolinite, halloysite, montmorillonite, vermiculite, illite, and allophane.
8. The method for preparing the composite carrier according to any one of claims 1 to 7, comprising the steps of:
s1: kneading, namely kneading the activated carbon, the coarse silica gel, the clay and the balance of water in mass fraction;
s2: extruding and molding, namely extruding the material kneaded in the step S1, and performing disc pressing and molding through a mold to obtain a model;
s3: and (5) air-drying, namely naturally air-drying the model extruded in the step S2 to prepare the composite carrier.
9. The method according to claim 8, wherein the extrusion pressure of S2 is 2.5-50 MPa.
10. The method according to claim 8, wherein the former of S2 is cylindrical, and the cross-sectional diameter of the cylindrical former is d1Wherein d is1D is not more than 0.8mm1≤4mm。
11. Use of the composite carrier according to any one of claims 1 to 7 or the composite carrier obtained by the method according to any one of claims 8 to 10 for supporting a chemical agent to form a filtration device.
CN202111152931.XA 2021-09-29 2021-09-29 Composite carrier and preparation method and application thereof Pending CN113856625A (en)

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Publication number Priority date Publication date Assignee Title
CN103830962A (en) * 2014-03-03 2014-06-04 芜湖市宝艺游乐科技设备有限公司 Cordierite compound ceramic filter element and preparation method thereof
US20170306217A1 (en) * 2016-04-20 2017-10-26 Spectrum Tracer Services, Llc Method and compositions for hydraulic fracturing and for tracing formation water
CN109078477A (en) * 2018-08-31 2018-12-25 北京零微科技有限公司 A kind of hydroxy-amino-acid is except purifying formaldehyde material and preparation method thereof
CN109499360A (en) * 2018-12-27 2019-03-22 佛山市顺德区阿波罗环保器材有限公司 A kind of deodorizing module and preparation method thereof containing composite coating
KR20190100079A (en) * 2019-05-22 2019-08-28 (주)슈가버블 Oxygen-generating dehumidifiers and deodorants, containers for containing them
CN111013528A (en) * 2019-11-29 2020-04-17 四川建筑职业技术学院 Material for absorbing and decomposing formaldehyde and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103830962A (en) * 2014-03-03 2014-06-04 芜湖市宝艺游乐科技设备有限公司 Cordierite compound ceramic filter element and preparation method thereof
US20170306217A1 (en) * 2016-04-20 2017-10-26 Spectrum Tracer Services, Llc Method and compositions for hydraulic fracturing and for tracing formation water
CN109078477A (en) * 2018-08-31 2018-12-25 北京零微科技有限公司 A kind of hydroxy-amino-acid is except purifying formaldehyde material and preparation method thereof
CN109499360A (en) * 2018-12-27 2019-03-22 佛山市顺德区阿波罗环保器材有限公司 A kind of deodorizing module and preparation method thereof containing composite coating
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