CN111659350A - Reinforced MHCC air purification material - Google Patents

Reinforced MHCC air purification material Download PDF

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Publication number
CN111659350A
CN111659350A CN202010571311.9A CN202010571311A CN111659350A CN 111659350 A CN111659350 A CN 111659350A CN 202010571311 A CN202010571311 A CN 202010571311A CN 111659350 A CN111659350 A CN 111659350A
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air purification
mhcc
reinforced
porous material
based porous
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杜峰
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Jiangsu Refontech Industrial Co ltd
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Jiangsu Refontech Industrial 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
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    • B01J20/28011—Other properties, e.g. density, crush strength
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057—Surface area, e.g. B.E.T specific surface area
    • B01J20/28064—Surface area, e.g. B.E.T specific surface area being in the range 500-1000 m2/g
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057—Surface area, e.g. B.E.T specific surface area
    • B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28078—Pore diameter
    • B01J20/2808—Pore diameter being less than 2 nm, i.e. micropores or nanopores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/30—Physical properties of adsorbents
    • B01D2253/34—Specific shapes
    • B01D2253/342—Monoliths
    • B01D2253/3425—Honeycomb shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/10—Single element gases other than halogens
    • B01D2257/106—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
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    • B01D2257/306—Organic sulfur compounds, e.g. mercaptans
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Abstract

The invention belongs to the technical field of air purification materials and sanitation and disinfection, and discloses a reinforced MHCC air purification material. The utility model provides a strenghthened type MHCC air purification material, is a cellular carbon base porous material that has disinfection performance, and this cellular carbon base porous material windage is little, and intensity is high, and water absorption is good, and thermal stability can be good, and specific surface area is big, can design with pollutant molecule diameter assorted most probably aperture, demonstrates excellent gas purification performance, can high efficiency get rid of multiple gaseous pollutant in the air fast, can extensively be used for environmental protection, use at home, food engineering, the air purification in fields such as chemical engineering.

Description

Reinforced MHCC air purification material
Technical Field
The invention relates to a reinforced MHCC air purification material, belonging to the technical field of air purification materials and sanitation and disinfection.
Background
The world health organization published "world health report of 2018" states that nearly 91% of people in the world do not breathe clean air by 2016, and 380 thousands of people in the world die from non-infectious diseases (including heart disease, stroke, and cancer) caused by indoor air pollution in 2016. Air pollution includes not only particulate pollution but also gaseous pollutants and microbial pollution. At present, the gaseous pollutants contain a large amount of substances which cause carcinogenesis and the like and seriously harm human health, such as formaldehyde, benzene, benzopyrene, hydrogen sulfide, acrolein, toluene, xylene and the like, microbial pollution comprises bacteria, fungi and viruses, and most of the microorganisms are pathogens and pathogenetic sources of human diseases, such as mycobacterium tuberculosis, plague bacillus, bacillus anthracis, aspergillus flavus, ebola virus, influenza virus, coronavirus, cholera virus, dengue virus, hepatitis B virus and the like. Pneumonia epidemic caused by the novel coronavirus outbreak in 2019, and influenza outbreak in the United states caused a large number of people to be infected and part of people to die, which brought huge impact on economic and social development of various countries. The novel coronavirus is mainly transmitted through droplets, but can also be transmitted through aerosol in a closed space, and the influenza virus is also a pathogenic virus which can be transmitted through air, so that the treatment of air, the improvement of air cleanliness and the blockage of a virus transmission path are particularly important.
The activated carbon material has the characteristics of large specific surface area, rich pore structure, good chemical stability, acid and alkali corrosion resistance, renewability and the like, and is widely used in the field of air purification. However, powdered activated carbon has low bulk density, is difficult to transport and recover, and is prone to dust pollution; the granular and columnar activated carbon has the defects of low utilization rate, high wind resistance, large pressure drop and the like. The cellular activated carbon gradually becomes a research hotspot of practitioners in the technical field of air purification and materials due to the characteristics of good fluid mechanical property, low wind resistance, high mechanical strength and the like.
CN201710236771.4 discloses a honeycomb activated carbon obtained by mixing, drying and microwave high-temperature sintering of plant-based biomass, a chemical activator and a nitrogen-phosphorus compound. Due to the adoption of the chemical activating agent, equipment can be corroded, the environment can be polluted, chemicals are remained in the activated carbon, the safety of the honeycomb material can be influenced, and in addition, the chemical activating agent is large in dosage and high in cost; CN107126923A discloses a honeycomb activated carbon which is prepared by high-temperature roasting of activated carbon powder, silicate, binder, nano titanium dioxide and lubricant, the nano titanium dioxide used in the method is easy to sinter to form large particles under the high-temperature roasting condition, and in addition, an ultraviolet light source is needed when in actual use; CN109663555A discloses a preparation method of electrostatic adsorption honeycomb activated carbon, which is obtained by mixing, drying and high-temperature roasting powdered activated carbon, silicate, tourmaline and a binder, wherein the pore size distribution of the honeycomb activated carbon obtained by the method is undefined, and honeycomb pore passages are easy to be blocked after particles are adsorbed by static electricity, so that the service life of the honeycomb carbon material is shortened. In addition, the functions of the existing honeycomb activated carbon in the sterilization and disinfection aspects are not considered, so that the development of a reinforced honeycomb porous carbon material with sterilization and disinfection properties shows great scientific research significance and practical application value.
Disclosure of Invention
The reinforced MHCC air purification material provided by the invention is a honeycomb carbon-based porous material with sterilization and disinfection performance, has small wind resistance, high strength, good water absorption performance, good thermal stability and large specific surface area, can be designed into the most probable pore diameter matched with the molecular diameter of pollutants, shows excellent gas purification performance, can quickly and efficiently remove various gaseous pollutants in the air, and can be widely used for air purification in the fields of environmental protection, household use, food engineering, chemical engineering and the like.
The invention provides a reinforced MHCC air purification material, which is a honeycomb carbon-based porous material and is characterized in that:
1) the wind resistance is less than or equal to 50 Pa under the condition that the windward speed of the honeycomb carbon-based porous material is 1.5 m/s;
2) the specific surface area is high, and the specific surface area of the honeycomb carbon-based porous material is 500-1500 m2/g；
3) The compressive strength is high, and the compressive strength of the honeycomb carbon-based porous material is more than or equal to 5 Mpa;
4) the thermal stability is good, and the weight loss of the honeycomb carbon-based porous material in the air atmosphere at 580 ℃ is less than or equal to 5 percent;
5) the hydrophilicity is good, and the saturated water absorption of the honeycomb carbon-based porous material is more than or equal to 65 percent;
6) the pore size distribution can be designed, the micropore size distribution of the honeycomb carbon-based porous material is 0.4-1.5 nm, and the most probable pore size is 0.5 +/-0.05 nm, 0.68 +/-0.05 nm, 0.8 +/-0.05 nm and 1.18 +/-0.05 nm;
7) the honeycomb carbon-based porous material has the sterilization and disinfection functions, and one or more of polyquaternium, benzalkonium chloride, chloroquine phosphate, chloroquine sulfate, arbidol hydrochloride, parachlorometaxylenol, polyhexamethylene guanidine hydrochloride and chlorhexidine acetate are added into the honeycomb carbon-based porous material, and the content is 0.001-0.5 wt%;
8) can purify various gaseous pollutants quickly and efficiently, and the honeycomb carbon-based porous material can be used for formaldehyde, toluene, xylene and NH3TVOC, ozone, NOx, H2The 1-hour removal rate of S, non-methane total hydrocarbon, dimethyl sulfoxide, dimethyl sulfide, methyl mercaptan, trimethylamine and styrene is more than or equal to 90 percent.
Drawings
FIG. 1 is the thermogravimetric plot of the reinforced MHCC air purification material in example 3 in air.
Detailed description of the preferred embodiments
The invention is further described below by way of examples
Example 1
The reinforced MHCC air purification material has the polyquaternium content of 0.08 wt%, the saturated water absorption of 68%, the compressive strength of 6.3 Mpa, the weight loss in the air atmosphere at 580 ℃ of 3.7%, the 30 mm thick reinforced MHCC air purification material with 180 meshes, the wind resistance of 32 Pa and the specific surface area of 525 m under the windward speed of 1.5 m/s2The most probable pore diameters are 0.47 nm, 0.52nm, 0.71 nm and 1.1 nm. 30 m3In an experimental chamber, under the conditions that the temperature is 25 ℃ and the relative humidity is 50 percent, the concentration of a frame material pair formed by 66 reinforced MHCC air purification materials is 0.4 mg/m3The formaldehyde purification rate in 1 hour was 91.5%, and the 1 hour sterilization rate for Staphylococcus albus was 46%.
Example 2
The reinforced MHCC air purifying material has the advantages that the content of polyhexamethylene biguanide hydrochloride is 0.1 wt%, the saturated water absorption is 74%, the compressive strength is 7.5 Mpa, the weight loss in an air atmosphere at 580 ℃ is 4.2%, the wind resistance of the reinforced MHCC air purifying material with the thickness of 21 mm and the thickness of 210 meshes is 45 Pa, and the specific surface area is 598 m under the windward speed of 1.5 m/s2The most probable pore diameters are 0.55 nm, 0.64 nm, 0.79 nm and 1.2 nm. 30 m3In an experimental chamber, under the conditions that the temperature is 24.5 ℃ and the relative humidity is 52 percent, the concentration of a frame material pair formed by 66 reinforced MHCC air purification materials is 0.85 mg/m3The 1-hour purification rate of trimethylamine is 95%, and the 1-hour sterilization rate of staphylococcus albus is 55%.
Example 3
The reinforced MHCC air purification material has the advantages that the content of polyhexamethylene biguanide hydrochloride is 0.1 wt%, the content of chloroquine phosphate is 0.05 wt%, the saturated water absorption is 79%, the compressive strength is 10.1 Mpa, the weight loss in an air atmosphere at 580 ℃ is 2.3%, the wind resistance of the reinforced MHCC air purification material with the thickness of 21 mm and the thickness of 180 meshes is 42 Pa, and the specific surface area is 698 m at the windward speed of 1.5 m/s2The most probable pore diameters are 0.50 nm, 0.62 nm, 0.82 nm and 1.01 nm. 30 m3In an experimental chamber, under the conditions that the temperature is 23.7 ℃ and the relative humidity is 49 percent, 66 pieces of frame material pairs consisting of the reinforced MHCC air purification material have the concentration of 0.39 mg/m3The 1-hour purification rate of methyl mercaptan is 97%, and the 1-hour sterilization rate of staphylococcus albus is 31%.
Example 4
The reinforced MHCC air purification material has the polyquaternium content of 0.1 wt%, the chloroquine phosphate content of 0.05 wt%, the saturated water absorption rate of 71%, the compressive strength of 8.4 Mpa, the weight loss in the air atmosphere at 580 ℃ of 3.2%, the wind resistance of the reinforced MHCC air purification material with the thickness of 21 mm and the thickness of 180 meshes of 40 Pa and the specific surface area of 775 m under the windward speed of 1.5 m/s2The most probable pore diameters are 0.44 nm, 0.70 nm, 0.88 nm and 1.33 nm. 30 m3In an experimental chamber, under the conditions that the temperature is 24.7 ℃ and the relative humidity is 49 percent, 66 pieces of frame material pairs consisting of the reinforced MHCC air purification material have the concentration of 0.20 mg/m3The 1-hour purification rate of xylene was 93%, and the 1-hour sterilization rate of staphylococcus albus was 64%.
The described embodiments are only a part of the present patent, and all other embodiments obtained by a person skilled in the art of air purification materials and sanitization of honeycomb modules without inventive work are within the scope of protection of the present patent.

Claims (9)

1. The reinforced MHCC air purification material is a honeycomb carbon-based porous material, has the characteristics of small wind resistance, high strength, good water absorption performance, good thermal stability and large specific surface area, can design the most probable pore diameter matched with the molecular diameter of pollutants, can quickly and efficiently treat various gaseous pollutants, and has sterilization and disinfection performance.
2. The reinforced MHCC air purification material of claim 1, wherein the wind resistance of the honeycomb carbon-based porous material is less than or equal to 50 Pa when the windward speed is 1.5 m/s.
3. The reinforced MHCC air purification material of claim 1, wherein the specific surface area of the honeycomb carbon-based porous material is 500-1500 m2/g。
4. The reinforced MHCC air purification material of claim 1, wherein the compressive strength of the honeycomb carbon-based porous material is not less than 5 MPa.
5. The reinforced MHCC air purification material of claim 1, wherein the weight loss of the cellular carbon-based porous material in an air atmosphere is less than or equal to 5% at 580 ℃.
6. The reinforced MHCC air purification material of claim 1, wherein the saturated water absorption of the honeycomb carbon-based porous material is more than or equal to 65%.
7. The reinforced MHCC air purification material of claim 1, wherein the cellular carbon-based porous material has a micropore size distribution of 0.4-1.5 nm, and the most probable pore size is 0.5 +/-0.05 nm, 0.68 +/-0.05 nm, 0.8 +/-0.05 nm and 1.18 +/-0.05 nm.
8. The reinforced MHCC air purification material as claimed in claim 1, wherein one or more of polyquaternium, benzalkonium chloride, chloroquine phosphate, chloroquine sulfate, arbidol hydrochloride, parachlorometaxylenol, polyhexamethylene guanidine hydrochloride and chlorhexidine acetate are added to the honeycomb carbon-based porous material, and the content is 0.001 wt% to 0.5 wt%.
9. The reinforced MHCC air purification material of claim 1, wherein the honeycomb carbon-based porous material is para-formaldehyde, toluene, xylene, NH3TVOC, ozone, NOx, H2The 1-hour removal rate of S, non-methane total hydrocarbon, dimethyl sulfoxide, dimethyl sulfide, methyl mercaptan, trimethylamine and styrene is more than or equal to 90 percent.
CN202010571311.9A 2020-06-22 2020-06-22 Reinforced MHCC air purification material Pending CN111659350A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105080498A (en) * 2014-05-21 2015-11-25 江苏瑞丰科技实业有限公司 Multifunctional high-efficiency integrated air pollution processing material
CN109364686A (en) * 2018-12-19 2019-02-22 江苏瑞丰科技实业有限公司 A kind of efficient deodorizing oxygen material
CN109865424A (en) * 2017-12-01 2019-06-11 江苏瑞丰科技实业有限公司 A kind of multifunctional air purifying cellular composite material
CN110465181A (en) * 2019-08-23 2019-11-19 江苏瑞丰科技实业有限公司 A kind of low windage material for air purification of idle call efficient long-acting
CN110465180A (en) * 2019-08-23 2019-11-19 江苏瑞丰科技实业有限公司 A kind of preparation of high-performance air cleaning honeycomb module material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105080498A (en) * 2014-05-21 2015-11-25 江苏瑞丰科技实业有限公司 Multifunctional high-efficiency integrated air pollution processing material
CN109865424A (en) * 2017-12-01 2019-06-11 江苏瑞丰科技实业有限公司 A kind of multifunctional air purifying cellular composite material
CN109364686A (en) * 2018-12-19 2019-02-22 江苏瑞丰科技实业有限公司 A kind of efficient deodorizing oxygen material
CN110465181A (en) * 2019-08-23 2019-11-19 江苏瑞丰科技实业有限公司 A kind of low windage material for air purification of idle call efficient long-acting
CN110465180A (en) * 2019-08-23 2019-11-19 江苏瑞丰科技实业有限公司 A kind of preparation of high-performance air cleaning honeycomb module material

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Application publication date: 20200915