JP2023551883A - Application of spherical carbon in smoke adsorption of non-combustible heated tobacco products - Google Patents

Abstract

The present invention discloses the use of spherical carbon in smoke adsorption of non-combustible heated tobacco products. Due to the spherical carbon having specific structural parameters according to the present invention and its doping into the cartridge, excellent selective and specific adsorption action is achieved for a large amount of carbonyl compounds generated during the heating process of non-combustible heated tobacco products. , the undesired adsorption of nicotine is also significantly improved, which is particularly advantageous for improving the content of harmful substances in smoke.

Description

Detailed description of the invention

This application is based on an earlier application filed with the State Intellectual Property Office of China on December 11, 2020 with patent number 202011453514.4 and titled "Application of spherical carbon in smoke adsorption of non-combustible heated tobacco products". Claim priority. Said prior application is incorporated herein by reference in its entirety.

[Technical field]
The present invention relates to the application of spherical carbon in smoke adsorption of non-combustible heated tobacco products, and belongs to the field of smoke adsorption of non-combustible heated tobacco products.

[Background technology]
As interest in the health caused by smoking increases, the demand for healthy smoking is also increasing. In the tobacco industry, compared to traditional cigarettes, the development of new tobacco products is progressing rapidly, and new tobacco products are mainly divided into two types: smoked and smokeless, and the smoked type is mainly e-cigarettes. and non-combustible heated cigarettes (HNB); non-combustible heated cigarettes are divided into tobacco type and non-tobacco type, and the main raw materials for cartridges in tobacco type are conventional shredded tobacco, tobacco sheets or reconstituted tobacco. The main raw material of the cartridge in the non-tobacco type is nicotine-free herbal particles, and flavor beads may be placed between the raw material and the mouthpiece, and different flavor beads may be incorporated depending on your preference. It is. Tobacco-type non-combustible heated tobacco retains more of the tobacco flavor and is more acceptable and easier to convert to the average consumer.

Compared to traditional cigarettes, non-combustible heated cigarettes use the special heating temperature of the smoking device to heat the cartridge without burning it, thereby reducing the release of harmful substances (HPHCs). significantly reduced. However, the tobacco part in a non-combustible heating tobacco cartridge is usually composed of tobacco sheets, tobacco sheets, reconstituted tobacco leaves, or herbal particles, etc., to which a large amount of smoke-generating agents, flavors and fragrances are added, and smoke-generating materials are used. Since the agent is mainly composed of propylene glycol and glycerol, large amounts of carbonyl compounds are produced in the heating process. These carbonyl compounds primarily include, but are not limited to, formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, 2-butanone, butyraldehyde, etc., which are considered important harmful components of smoke. Specifically, formaldehyde is classified as a Class I carcinogen by the International Agency for Research on Cancer (IARC), acetaldehyde is classified as Group 2B and may also be ciliary toxic, and acrolein is cytotoxic. . How to effectively reduce harmful substances is currently an important direction in the research of new cigarettes, especially non-combustible heated cigarettes.

[Summary of the invention]
In order to improve the above technical problems, the present invention provides the use of spherical carbon for smoke adsorption in non-combustible heated tobacco products.

According to an embodiment of the present invention, the non-combustible heated tobacco product is at least one selected from electrically heated non-combustible heated tobacco products, carbon heated non-combustible heated tobacco products, and the like. For example, the "smoke" may be a gas emitted from a non-combustible heated tobacco product in a normal pressure environment, or a gas produced from a tobacco product in a negative pressure environment (e.g., inhalation). Good too.

According to an embodiment of the present invention, the appearance of the "smoke" may be in a gaseous state and/or a mist state. For example, the "smoke" is produced by a cartridge in a non-combustible heated tobacco product under non-combustible heating conditions. The heating method may be internal heating, external heating, or a mixed internal and external heating method. Internal heating means that the heating element is wrapped in a cartridge and the heat can be concentrated in the smoke chamber. External heating means that the cartridge is inserted into the smoking device and heated, and the heat emitted by the smoking device is transferred to the surface of the cartridge.

According to an embodiment of the present invention, the cartridge may contain tobacco or a herb that can replace tobacco. Among them, the tobacco may be at least one selected from leaf tobacco, reconstituted tobacco leaves, and the like. Those skilled in the art should understand that the tobacco may have different ingredients or their content. Tobacco leaf composition can be influenced by genetics, agricultural practices, soil type and nutrients, weather conditions, plant diseases, leaf position, collection and sun-drying processes. The above-mentioned herbs that can replace tobacco are selected from non-tobacco herbs that can produce smoke when heated at low temperatures, and are obtained by producing natural herbs such as tea leaves, ginkgo biloba leaves, and flowers as raw materials.

According to the embodiment of the present invention, there are no particular requirements for the shape of the tobacco, and it may be in the form of strands, flakes, particles, powder, etc., for example, in the form of a sheet.

According to embodiments of the invention, the cartridge may further include at least one perfume and/or other additives. For example, the additive may be at least one selected from a smoke generating agent, a coloring agent, a binder, and the like.

According to an embodiment of the invention, the smoke agent includes propylene glycol and glycerol. For example, in the above cartridge, the glycerol content is 15 to 70 wt%, preferably 20 to 60 wt%, and for example, in the above cartridge, the propylene glycol content is 2 wt% or less, preferably 1.5 wt% or less. , more preferably 1 wt% or less.

According to an embodiment of the invention, the smoke may or may not contain nicotine or nicotine salts.

The nicotine salt may be selected from salts formed by nicotine and an acid. The above acids are, for example, formic acid, acetic acid, propionic acid, butyric acid, 2-methylbutyric acid, 3-methylbutyrate, valerate, benzoic acid, carbonic acid, citric acid, gallic acid, hydrochloric acid, lactic acid, lauric acid, levulinic acid. , malic acid, malonic acid, oxalic acid, oxaloacetic acid, palmitic acid, pyruvic acid, phosphoric acid, salicylic acid, sorbic acid, stearic acid, sulfuric acid, phthalic acid, picric acid, sulfosalicylic acid, tartaric acid, tannic acid, pectic acid, alginic acid , chloroplatinic acid, tungstic silicoic acid, pyruvic acid, glutamic acid, and aspartic acid.

According to an embodiment of the present invention, the smoke may further include a carbonyl compound. Preferably, the carbonyl compound includes at least one component selected from formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, butyraldehyde, and 2-butanone.

According to an embodiment of the invention, said carbonyl compound originates from fumes generated by heating and/or atomization of a cartridge, preferably from fumes generated by heating and/or atomization of a smoke generating agent. do.

According to an embodiment of the invention, the fumes optionally include or are free of nitrosamine compounds. The above nitrosamine compounds include 4-(N-methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), N'-nitrosoanabasine (NAB), N'-nitrosoanatabine (NAT), N'-nitrosonornicotine (NNN), dimethylnitrosamine (NDMA), nitrosopiperidine (NPIP), N-nitrosomethylethylamine (NEMA), N-nitrosodiethylamine (NDEA), N-nitrosodipropylamine (NDPA), N - Contains at least one selected from nitrosopyrrolidine (NPYR) and morpholine (NMOR).

According to embodiments of the invention, the smoke may further include other components, such as 1-hydroxy-2-propanone, 3-hexen-2-one, 4-hydroxy-2-pentanone, furfural. , 5-(hydroxymethyl)furfural, 2-oxo-3-cyclopentene-1-acetaldehyde, furfuryl alcohol, 2-hexenal, 1-acetoxy-2-propanone, cyclopentene 1,4-dione, 2-methyl-2- Cyclopenten-1-one, 2(3H)-furanone, 1,2-cyclopentadione, 2-hydroxy-3-methyl-2-cyclopenten-1-one, 2,3-dimethyl-2-cyclopenten-1-one , 2,5-dimethyl-4-hydroxy-3(2H)-furanone, megastigmatrienone A, megastigmatrienone B, megastigmatrienone C, megastigmatrienone D, norsolanadione, 4,4-dimethyl- 2-Cyclohexen-1-one, 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one, benzene, cyclohexene, propionic acid, acrylic acid, propylene glycol, 2,2'- Ethoxypropane, 2-hydroxyethyl acetate, methyl 2-oxopropanoate, cumene, diethylene glycol diethyl ester, phenol, 2-methylphenol, 3-methylphenol, 4-methylphenol, 2-methoxyphenol, 3-furoate, catechol, 2,3-dihydrobenzofuran, 1,4-benzenediol, 3-methyl-1,2-benzenediol, 2-methoxy-4-vinylphenol, solanone, isoeugenol, farnesol, β-nicotyline, 2,3-bipyridine , quinic acid, 3-oxo-α-ionol, 4,8-dimethyl-1-nonanol, neophytadiene, hexadecanoic acid, methyl 9,12,15-octadecatrienoate, 5-en-3-cholesteryl acetate, At least one component selected from acetic acid-5,22-diene-3-soyster ester.

According to an embodiment of the invention, the smoke may further include other components, for example selected from the following elements: Cr, Ni, Fe, Al, Sn, Pb, Cd, As, Sb, Hg, Cu. contains at least one compound.

According to embodiments of the invention, the smoke may further include particulate matter and/or aerogels and may include components such as CO, _CO2 and/or airborne gases.

According to an embodiment of the invention, the spherical carbon is used to selectively adsorb at least one of the components or substances in the smoke.

According to embodiments of the invention, there is further provided a spherical carbon which may be selected from spherical activated carbons.

Preferably, the spherical carbon is applicable to the embodiments or technical proposals in the context of this specification, such as the uses mentioned above.

According to an embodiment of the present invention, the term "spherical activated carbon" refers to activated carbon exhibiting a spherical shape or an activated carbon exhibiting a spherical shape, in which the orthographic projection of the activated carbon exhibiting a spherical shape in at least one of the above-mentioned planes is circular; The orthographic projection of the activated carbon is elliptical or exhibits a substantially circular or elliptical shape, preferably a sphere-like shape in at least 5, such as at least 10, planes as described above. , or exhibiting a substantially circular or oval shape.

According to an embodiment of the invention, the volume of said spherical carbon is V=γπ(d/2) ³ , where γ is a number from 1.0 to 2.0, such as from 1.2 to 1.5, such as from 1.3 to 1.4. chosen, preferably 4/3, where d is the maximum diameter of the spherical carbon.

According to an embodiment of the invention, in the tobacco product, the weight of nicotine and/or nicotine salts calculated on nicotine may be from 0 to 24 mg, for example 0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 17.0, 18.0, 19.0, 20.0, 21.0, 22.0, 23.0 or 24.0 mg. Preferably, the weight of nicotine and/or nicotine salt calculated on nicotine is greater than zero.

According to embodiments of the invention, the weight of spherical carbon for adsorbing smoke may be from 1 to 300 mg, for example 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200 or 300 mg . Preferably, the weight of spherical carbon for adsorbing fumes is 10-60 mg.

According to an embodiment of the invention, in the tobacco product, the weight ratio of nicotine and/or nicotine salt to spherical carbon calculated on the basis of nicotine is (0-24):(1-300); For example (0.05-18): (10-200), for example (0.08-12): (15-150), for example (0.1-10): (40-100), for example (0.1-8): ( 50-80). By way of example, in the above tobacco product, the weight ratio of nicotine and/or nicotine salt to spherical carbon, calculated on the basis of nicotine, may be (0.1-0.4): (40-60).

According to an embodiment of the invention, the specific surface area B of the spherical carbon is lower than 1300 m ² /g. For example, B is lower than 1200 m ² /g, and for example 900 m ² /g≦B≦1180 m ² /g, 950 m ² /g≦B≦1150 m ² /g. As examples, B=980 m ² /g, 1000 m ² /g, 1020 m ² /g, 1040 m ² /g, 1050 m ² /g, 1070 m ² /g, 1080 m ² /g, 1100 m ² /g, 1120 m ² /g, 1128 m ² /g, 1130 m ² /g, 1135 m ² /g, 1140 m ² /g, 1141 m ² /g.

According to an embodiment of the present invention, the average particle size of the spherical carbon may be 0.2-1.5 mm, such as 0.2-1.0 mm, such as 0.2-0.4 mm, 0.6-0.8 mm, specifically It may be 0.2 mm, 0.4 mm, 0.405 mm, 0.42 mm, 0.45 mm, 0.48 mm, 0.49 mm, 0.50 mm, 0.52 mm, 0.53 mm, 0.55 mm, 0.6 mm, 0.7 mm, 0.8 mm.

According to an embodiment of the invention, the average pore size of the spherical carbon is 1.5-3.2 nm, such as 1.55-3.0 nm, such as 1.6-2.7 nm, for example, the average pore size is 1.6245 nm, 1.7 nm, 1.8 nm. nm, 1.9 nm, 2.0 nm, 2.1 nm, 2.2 nm, 2.3 nm, 2.4 nm, 2.5 nm, 2.6 nm, 2.7 nm.

According to an embodiment of the invention, the average pore volume of the spherical carbon is between 0.35 and 0.80 cm ³ /g, such as between 0.38 and 0.70 cm ³ /g, between 0.40 and 0.60 cm ³ /g, by way of example: The average pore volumes are 0.45 cm ³ /g, 0.50 cm ³ /g, 0.55 cm ³ /g, 0.60 cm ³ /g.

According to an embodiment of the invention, the spherical carbon comprises mesopores (pore size between 2 and 50 nm) and micropores (pore size less than 2 nm). Among them, the pore volume of the mesopores is 0.003 to 0.018 cm ³ /g. For example, the pore volume of mesopores greater than 2 nm and less than 4 nm is greater than 0.013 cm ³ /g and less than 0.017 cm ³ /g, such as from 0.014 to 0.016 cm ³ /g. For example, the pore volume of mesopores greater than 4 nm and less than 50 nm is greater than or equal to 0.002 and greater than or equal to 0.013 cm ³ /g, for example from 0.003 to 0.012 cm ³ /g. For example, the pore volume of mesopores greater than 4 nm and less than 10 nm is greater than or equal to 0.009 cm ³ /g and less than 0.013 cm ³ /g, such as from 0.010 to 0.012 cm ³ /g.

According to an embodiment of the invention, the pore volume of said micropores may be ≧2000 cm ³ /g, preferably ≧3000 cm ³ /g, such as ≧4300 cm ³ /g, such as ≧4400 cm ³ /g, ≧4500 cm ³ /g, ≧4600 cm ³ /g, ≧4700 cm ³ /g, ≧4800 cm ³ /g, ≧4900 cm ³ /g, ≧5000 cm ³ /g, ≧5100 cm ³ /g, ≧5200 cm ³ /g, ≧5300 cm ³ /g, ≧5400 cm ³ /g, ≧5500 cm ³ /g.

According to embodiments of the invention, the compressive strength of the spherical carbon may be between 10 and 100 N, such as between 20 and 95 N, such as 30 N, 40 N, 50 N, 60 N, 70 N, 80 N. , 90 N. Among these, the pressure resistance mentioned above refers to the maximum pressure value that each spherical carbon can withstand.

According to an embodiment of the invention, the crack rate of the spherical carbon may be less than 10.0%, such as 0-10.0%, such as 0-6.0%, preferably less than 5.0%, such as 0-3.0%. It is.

According to an embodiment of the invention, the deposition density of said spherical carbon may be between 300 and 900 g/cm ³ , preferably between 400 and 800 g/cm ³ , such as between 450 and 750 g/cm ³ , between 500 and 750 g/cm 3 . 700 g/cm ³ or 600-700 g/cm ³ .

According to a preferred embodiment of the invention, the spherical carbon is used in an unmodified state for smoke adsorption.

According to an embodiment of the present invention, the spherical carbon is used for smoke adsorption without being bound or combined with other adsorbents.

Among them, the other adsorbents mentioned above are adsorbent materials for adsorbing at least one undesirable component in smoke, but preferably for example cigarette paper necessary for rolling cigarettes, forming cartridges. It does not contain the known excipient materials necessary for cigarette manufacturing, such as paper, chipping paper, etc., and although they can also have weak adsorption capacity in certain conditions, those skilled in the art can use them as adsorption materials. Since it is not used, it should not be included within the scope of the above adsorbents.

According to an embodiment of the present invention, the raw material for producing the spherical carbon is a spherical polymer, such as a porous spherical polymer and a microporous spherical polymer.

The present invention
1) carbonizing the spherical polymer;
2) activating the product obtained in step 1), the method for producing spherical carbon as described above is further provided.

According to the present invention, in step 1), the polymer can be produced by mixing monomers and an initiator and performing a polymerization reaction. By way of example, the polymer may be a homopolymer or a copolymer. Among them, the homopolymer refers to a polymer produced by a polymerization reaction of one monomer, and the copolymer refers to a polymer produced by a polymerization reaction of two or more monomers.

According to the invention, the monomers may be selected from compounds having 2 to 60 carbon atoms and having at least one carbon-carbon double bond, for example having 2 to 20 carbon atoms. and has at least one carbon-carbon double bond. For example, the above monomers include ethylene, propylene, isopropylene, butylene, isobutylene, pentene, isopentene, neopentene, hexene, isohexene, neohexene, styrene, methylstyrene, acrylic acid, methacrylic acid, methyl acrylate, methyl methacrylate, butadiene, It may be one, two, or more selected from the following substances: pentadiene, isopentadiene, isohexadiene, divinylbenzene, and diethylene glycol divinyl ether.

Optionally, the polymeric matrix of said copolymer comprises structural units derived from a first monomer and structural units derived from a second monomer, wherein said first monomer has from 2 to 10 carbon atoms. and includes at least one carbon-carbon double bond, and the second monomer has from 4 to 15 carbon atoms and includes at least two carbon-carbon double bonds.

Preferably, in the polymer matrix of the copolymer, the structural units derived from the first monomer account for 75% to 98%, preferably 80% to 90%, of the total structural units of the polymer network; The structural units derived from monomers account for 25% to 2%, preferably 20% to 10% of the total structural units of the polymer network.

According to the invention, said first monomer is selected from styrene, methylstyrene, ethylstyrene, acrylic acid, methacrylic acid, methyl acrylate, methyl methacrylate and monoolefins having 2 to 6 carbon atoms. Monoolefins having one, two or more carbon atoms and having from 2 to 6 carbon atoms as mentioned above are, for example, ethylene, propylene, isopropylene, butylene, isobutylene, pentene, isopentene, neopentene, hexene, isohexene, neohexene, etc. .

According to the present invention, the second monomer is one, two or more selected from butadiene, pentadiene, isopentadiene, isohexadiene, divinylbenzene and diethylene glycol divinyl ether.

According to the invention, the polymerization reaction may be a suspension polymerization reaction, and preferably the polymerization reaction is also carried out in the presence of water, a dispersant, and a dispersion aid.

For example, the weight ratio of water:dispersant:dispersion aid is 800-1000:0.5-100:0.05-10. For example, in the above ratio, the weight of the dispersant may be 8 to 80 g, and the weight of the dispersion aid may be 0.2 to 2.4 g, based on 1000 g of water.

When the above polymer is a homopolymer, the weight ratio of monomer:initiator may be 1:0.003 to 0.01.

If present, the weight ratio of first monomer:second monomer:initiator may be 0.75-0.98:0.02-0.25:0.003-0.01.

Preferably, the aqueous phase is composed of water, a dispersant, and a dispersion aid, and the oil phase is composed of a homopolymer monomer, a copolymer first monomer, a second monomer, and/or an initiator, and the above oil phase and The weight ratio of the aqueous phase may be 1:4-6.

According to the invention, the suspension polymerization reaction can include the following:

Add each component to the reaction vessel, inject compressed air or nitrogen gas into the reaction vessel, maintain the pressure inside the reaction vessel at a positive pressure state with a gauge pressure of 0.5 MPa or less, raise the temperature to 80 to 110°C, and After cooling by maintaining for 2 to 24 hours, a spherical polymer is obtained by washing with water, sieving, and drying.

In a preferred embodiment, the dispersant is an inorganic dispersant or an organic dispersant or a combination thereof, wherein the inorganic dispersant is, for example, a silicate, carbonate or phosphate (e.g. disodium hydrogen phosphate hydrate), or a combination thereof, and the organic dispersant is, for example, polyvinyl alcohol, gelatin, carboxymethylcellulose or polyacrylate, or a combination thereof.

In a preferred embodiment, the dispersion aid is sodium dodecyl sulfate, calcium dodecylbenzenesulfonate, sodium dodecylbenzenesulfonate, calcium petroleum sulfonate, sodium petroleum sulfonate or barium stearate, resorcinol, or a combination thereof.

In a preferred embodiment, the initiator is an organic peroxy compound, an inorganic peroxy compound or an azo compound, or a combination thereof.

In preferred embodiments, the initiator is diacyl peroxides, dialkyl peroxides, peroxide esters, azobisisobutyronitrile or persulfates, or combinations thereof.

Preferably, the polymerization reaction may be performed in the presence of a porogen. The porogen may be selected from paraffin, magnesium sulfate, sodium carbonate, gelatin or glycerin, or combinations thereof.

According to the invention, the median particle size D ₅₀ of the spherical polymer may be from 0.2 to 1.5 mm, such as from 0.2 to 1.0 mm, such as from 0.2 to 0.4 mm, from 0.6 to 0.8 mm, and in particular may be 0.2 mm, 0.4 mm, 0.50 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm or 1.2 mm.

According to the invention, the polymer may be a sulfonated or non-sulfonated polymer. If a non-sulfonated polymer is used, it can be sulfonated prior to the carbonization step and/or sulfonated in situ during the carbonization process.
By way of illustration, the non-sulfonated polymers described above may be prepared according to known methods or may be obtained commercially.

The sulfonation may be carried out using raw materials known in the art, for example by contacting the non-sulfonated polymer with a sulfonating agent. The sulfonating agent may be one or a mixture of sulfuric acid (eg, concentrated sulfuric acid), fuming sulfuric acid, and SO ₃ .

According to the invention, the total weight ratio of non-sulfonated spherical polymer and sulfonating agent may be from 3:1 to 1:3, such as from 2:1 to 1:2, such as from 1:1. ~1:1.5.

The temperature of the sulfonation step can vary within a very large range.

For example, when sulfonating before the carbonization step, the temperature of the sulfonation step may be between 30 and 300°C, such as between 40 and 180°C, 200 and 280°C, such as between 50 and 160°C, 240 and 260°C. be.

Preferably, the sulfonation step may be carried out simultaneously with elevated temperature within the above temperature range. The temperature increase rate may be less than 10°C/min, such as less than 5°C/min, such as less than 3°C/min.

The duration of the sulfonation step may be 0.5 to 12 hours, preferably 1 to 10 hours, such as 1.5 to 10 hours, 1.8 to 8 hours, 2 to 6 hours.

Preferably, the sulfonation is performed in an inert atmosphere, and the gas in the inert atmosphere may be one or more mixtures selected from nitrogen gas, helium gas, and argon gas.

According to the invention, the carbonization in step 1) may be carried out in an inert atmosphere or a mixed atmosphere of an inert atmosphere and oxygen gas.

Usually, the carbonization temperature may be 100 to 950°C, for example 160 to 900°C, for example 300 to 850°C.

If sulfonation is performed before the carbonization step, the start temperature of the carbonization step may be equal to or higher than the end temperature of the sulfonation temperature.

Preferably, the carbonization step may be carried out within the above temperature range and at the same time as the temperature is increased. The temperature increase rate may be less than 10°C/min, such as less than 5°C/min, such as less than 3°C/min.

Preferably, the carbonization may be carried out in two or more temperature zones in sequence, for example in 2 to 10 temperature zones in sequence. Preferably, the temperatures in the temperature ranges are different from each other. Alternatively, carbonization may be carried out at a gradient of increasing temperatures.

Preferably, the carbonization may have the same or different heating rates and the same or different warming times within different temperature ranges.

Preferably, when carbonization is carried out in two or more temperature zones in sequence, carbonization is first carried out in the first temperature zone, followed by carbonization in the next temperature zone, for example in the second temperature zone. For example, the temperature of the first temperature range may be 100-500°C, for example 160-350°C, and the initial temperature of the second temperature range may be equal to or higher than the maximum temperature of the first temperature range. Often, for example, the temperature of the second temperature range is between 350 and 850°C, such as between 400 and 800°C.

Preferably, the carbonization time is between 30 minutes and 20 hours, such as between 1 and 16 hours, such as between 2 and 12 hours.

Preferably, when carbonization is carried out in a mixed atmosphere of an inert atmosphere and oxygen gas, the volume percentage of oxygen gas in the mixed atmosphere is between 1 and 5%.

For example, it should be understood that the ambient temperature of the spherical polymer may cause the spherical polymer to be sulfonated, or the spherical polymer may be sulfonated in situ to a carbonization process.

According to the invention, the activation of step 2) may include a first activation step carried out in an atmosphere containing water vapor. Preferably, the temperature of said first activation treatment is 700-1300°C, such as 800-1200°C, such as 850-950°C, and the time of said first activation step is 1-40 hours, such as 5-1300°C. It may be 35 hours, for example 10 to 30 hours.

Preferably, the atmosphere of said first activation step comprises water vapor, in particular a water vapor/inert gas (e.g. nitrogen gas) mixture, preferably is or consists of a water vapor/nitrogen gas mixture. .

Preferably, the volume ratio (flow rate ratio) of the nitrogen gas to water vapor is 3:1 or more, for example 4:1 to 15:1, preferably 7:1 to 13:1.

According to the invention, the atmosphere of the first activation step may be free of other gases, such as carbon oxides (eg _CO2 ), oxygen gas and ammonia.

Preferably, said activation may be carried out in two or more temperature ranges in sequence, for example in 2 to 10 temperature ranges in sequence. Preferably, the temperatures in the temperature ranges are different from each other. Alternatively, activation may be performed at a gradient of increasing temperatures.

Preferably, the activation may have similar or different heating rates and similar or different warming times within different temperature ranges.

Preferably, if the first activation is carried out in two or more temperature ranges in sequence, activation is first carried out in the first temperature range, followed by carbonization in the next temperature range, for example the second temperature range. For example, the temperature of the first temperature range may be between 20 and 200°C, and the initial temperature of the second temperature range may be equal to or higher than the maximum temperature of the first temperature range, for example, the temperature of the second temperature range may be The temperature of the third temperature range may be 200 to 550°C, and the initial temperature of the third temperature range may be higher than or equal to the maximum temperature of the second temperature range, for example, the temperature of the third temperature range is 550 to 900°C, and the The initial temperature of the temperature region may be higher than the maximum temperature of the third region, for example, the temperature of the fourth temperature region is 900 to 1300°C, for example 900 to 1100°C.

According to the invention, the activation of step 2) may further include a second activation step carried out in an atmosphere comprising _CO2 . Preferably, the temperature of said second activation step is 700-1300°C, preferably 800-1200°C, such as 900-950°C, and the time of said second activation step is 1-15 hours. For example, 3 to 12 hours.

Preferably, the atmosphere of said second activation step comprises CO ₂ , such as CO ₂ or a mixture of CO ₂ and an inert gas, such as a mixture of CO ₂ and nitrogen gas.

Preferably, when the second activation atmosphere includes a mixture of nitrogen gas and CO ₂ , the volume ratio (flow rate ratio) of nitrogen gas and CO ₂ may be from 10:1 to 1:10; For example, 10:1 to 2:1, for example 8:1 to 4:1, for example 3:1 to 2:1.

According to the invention, the atmosphere of the second activation step may be free of other gases, for example free of water vapor.

According to the invention, the temperature increase may use a gradient temperature increase. Optionally, when increasing the temperature to a predetermined temperature, it may be maintained for 1 to 900 min, for example 30 to 800 min, and then the temperature can be increased again.

Preferably, the heating process of the method of the invention may be continuous or intermittent. Preferably, in the activation process, the temperature increase rate is less than 10°C/min, such as less than 5°C/min, such as less than 3°C/min.

According to an embodiment of the invention, the cartridge includes a composite nozzle rod containing spherical carbon. For example, the above-mentioned composite nozzle rod includes at least one composite unit including an empty part containing spherical carbon in the center and tow parts connected to both ends of the empty part. The above-mentioned composite unit can perform the functions of filtration and/or temperature reduction.

According to an embodiment of the present invention, the cartridge further includes a tobacco section, a hollow filtration section, a cooling section, and/or a solid filtration section, such as a tobacco section, a hollow filtration section, a cooling section, and a solid filtration section arranged in order. including. Preferably, the cooling section may include a phase change material.

Alternatively, the cartridge includes a heating section, a first tobacco section, a second tobacco section, and a hollow filtration section, for example, a heating section, a first tobacco section, a second tobacco section, and a hollow filtration section arranged in order. include. Preferably, the heating section includes a carbon rod. Preferably, the first tobacco section includes a vaporization cavity. Preferably, the second tobacco section includes a condensation cavity.

According to embodiments of the invention, the composite nozzle rod can be combined with any one, two or more parts of the above to form a cartridge.

According to embodiments of the invention, the hollow filtration section and the solid filtration section include a filtration media tow, such as fibers, cellulose, cellulose acetate, acetate fibers, polypropylene, and the like.

According to a preferred embodiment of the invention, the spherical carbon is used to adsorb smoke in any one or more of the above structures of the cartridge.

The invention further provides a cartridge comprising spherical carbon having the above definition.

According to an embodiment of the invention, the cartridge has the structure described above.

According to an embodiment of the invention, the spherical carbon is dispersed in any one or more of the structures of the cartridge. Among them, the above-mentioned dispersion is continuous dispersion or discontinuous dispersion. For example, the above-mentioned discontinuous dispersion may be a dispersion in which the intervals are uniform, or a dispersion in which the intervals between the spherical carbons are non-uniform with a predetermined concentration gradient. For example, the continuous dispersion may be an isoconcentration dispersion or a non-isoconcentration dispersion. Illustratively, the spherical carbon has a maximum concentration near the tobacco section.

For example, the spherical carbon and the tow in the filtration section are combined into a carbon-injected tow, which is installed in the hollow filtration section and/or the solid filtration section.

For example, a composite of spherical carbon and a phase change material is installed in a cooling section. Therein, the phase change material is selected from phase change materials known in the art.

According to embodiments of the invention, the cartridge, in addition to containing the spherical carbon, may further include other adsorbents, catalysts and/or additives suitable for use in the cartridge.

The present invention further provides a non-combustible heated tobacco product comprising the spherical carbon and/or the cartridge.

According to embodiments of the invention, the weight of spherical carbon in the tobacco product may be from 1 to 300 mg, for example 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , 12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 , 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62 , 63, 64, 65, 66, 67, 68, 69, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200 or 300 mg. Preferably, the weight of the spherical carbon is about 10-60 mg, such as 15-30 mg.

According to an embodiment of the invention, the non-combustible heated tobacco product and cartridge have the meaning given above.

According to an embodiment of the invention, the non-combustible heated tobacco product further includes a smoking device for heating the cartridge. The heating may be internal heating, external heating, or mixed internal and external heating. For example, the number of said smoking devices is at least 3, preferably 4, 5 or more. For example, the number of said cartridges is at least 120, preferably 130, 140 or more. Among them, the "smoking" process of the above-mentioned non-combustion heated tobacco products usually involves heating the tobacco in the cartridge, and sucking downstream smoke through the cooling part of the tobacco product by a filter nozzle.

The present invention further provides a method of manufacturing the above-described non-combustible heated tobacco product, comprising coupling the cartridge to a smoking device.

The present invention further provides a smoke adsorption method comprising contacting the spherical carbon with the smoke. Among them, in order to avoid the influence of moisture and other volatile substances contained in the spherical carbon on the smoke adsorption results, the spherical carbon may be pretreated, for example, by heating the spherical carbon, Furthermore, the heating temperature may be 90°C or higher, preferably 100°C or higher.

The present invention further provides a method for selectively adsorbing at least one component in smoke, comprising contacting the spherical carbon with smoke containing the at least one component.

[Beneficial effects]
The inventors have found that when the spherical carbon according to the present invention is applied to non-combustible heated tobacco products, it not only meets the requirements of mechanical properties, but also has excellent properties against the large amount of carbonyl compounds generated during the heating process. It also has a selective and specific adsorption effect, and the undesired adsorption of nicotine is also significantly improved, which is unexpectedly particularly advantageous for improving the content of harmful substances in smoke. discovered.

The physical and mechanical properties of the spherical carbon used in this application are stable, no modification treatment is required, and the safety and stability of tobacco products is ensured without introducing new chemicals.

[Brief explanation of the drawing]
[FIG. 1] A configuration diagram of a cartridge in Test Example 1.

[Explanation of symbols]
1-Hollow composite nozzle rod
2- Cooling section
3-Hollow filtration section
4-Tobacco club.

[Form for carrying out the invention]
Hereinafter, the technical solution of the present invention will be described in more detail with reference to specific examples. The following examples are merely illustrative and construed of the invention and should not be construed as limiting the scope of the invention. Any technique realized based on the above content of the present invention is included within the scope of the claims claimed by the present invention.

Unless otherwise specified, all raw materials and reagents used in the Examples below are commercially available or can be prepared by known methods.

The equipment and methods for measuring each characteristic parameter of the products in the examples below are as follows.

Average pore size, pore size distribution, total pore volume and specific surface area: Japan BELSORP-min II multi-station fully automatic specific surface area and porosity analyzer.

Crack rate, particle size distribution and average particle size: Nikon stereo microscope SMZ800N.

Deposition density: measured according to GB/T 30202.1-2013.

Strength: Measured according to GB/T 7702.3-2008.

Crack rate and compressive strength: Measured using commercially available equipment YHS229KG.

Smoke collection method: Refer to ISO3308:2000 and use a simulated smoking machine to collect smoke generated from cigarettes under the following conditions:

Example 1 Production of spherical carbon XH-1
1.1 Preparation of spherical polymer matrix
1 kg of water was added to a 40 L glass reactor, 30 g of gelatin, 50 g of disodium hydrogen phosphate dodecahydrate solution and 2.4 g of resorcinol were added, mixed and stirred uniformly. The temperature of the mixture was adjusted to 25° C. and, with stirring, the oil phase materials, namely 540 g divinylbenzene, 150 g ethylstyrene, 50 g tert-butylperoxy-2-ethylhexanoate and 11500 g styrene were added. added. Close the reactor, inject clean compressed air into the reactor, start stirring, stir rapidly to adjust the particle size of beads in the reactor, program temperature increase, and increase the temperature from 25 °C to 100 °C. The polymerization was completed by warming and increasing the temperature while stirring the mixture rapidly. After cooling the mixture, it was washed with a sieve and then dried under vacuum at 80°C. 11132 g of a spherical polymer with a smooth surface was obtained.

1.2 Sulfonation and carbonization After mixing the polymer obtained in step 1.1 with concentrated sulfuric acid (concentration 98%) at a mass ratio of 2:3, the mixture was added to an acid-resistant rotary tube furnace and heated with nitrogen gas in a nitrogen atmosphere. The injection amount was maintained at 10 to 20 Nm ³ /h, and the following heat treatment was performed.
It was heated from 30°C to 50°C at a heating rate of 5°C/min.
Heating was continued to 160°C at a temperature increase rate of 3°C/min.
The temperature was maintained at 160°C for 360 minutes.
Heating was continued to 350°C at a temperature increase rate of 1°C/min.
The temperature was maintained at 350°C for 120 minutes.
Thereafter, it was heated to 800°C at a temperature increase rate of 1°C/min. The temperature was lowered and a carbonized product was obtained.

1.3 Activation Add 5 kg of the carbonized product from step 1.2 into a rotary tube furnace and maintain the nitrogen gas injection rate between 2 and 5 m ³ /h in a nitrogen atmosphere to activate the carbonized product obtained in step 1.2. The following heat treatment was performed.
It was heated from 20°C to 200°C at a heating rate of 4°C/min.
Heating was continued to 550°C at a temperature increase rate of 3°C/min.
Heating was continued to 900°C at a temperature increase rate of 1°C/min.
Thereafter, the temperature was maintained at 900°C, the water vapor injection rate was set to 25 kg/h, and 850°C steam was injected, and the temperature was maintained for 720 min. The temperature was lowered and spherical carbon was obtained.

The obtained product was screened and the particle size ranged from 0.20 to 0.40 mm, the average pore size was 2.14 nm, the average specific surface area was 1115 m ² /g, the average pore volume was 0.5966 cm ³ /g, and the average Spherical carbon XH-1 with a compressive strength of 25.94 N, an average deposition density of 612 g/L, a crack rate of 0, and a strength of 98.84% was obtained.

Example 2 Production of spherical carbon XH-2 Production of spherical carbon XH-2 with reference to Example 1, produced polymer matrix and stirring to produce the polymer matrix to increase the particle size of the spherical carbon They differ in that they adjust the speed.

After screening the produced spherical carbon, the particle size ranged from 0.60 to 0.80 mm, the average pore size was 2.26 nm, the average specific surface area was 1037 m ² /g, and the average pore volume was 0.5854 cm ³ /g. , Spherical carbon XH-2 with an average compressive strength of 94.45 N, an average deposition density of 686 g/L, a crack rate of 0, and a strength of 99.57% was obtained.

Example 3 Production of spherical carbon DH Spherical carbon DH was produced with reference to Example 1, with the following differences in the production method of the spherical polymer matrix.

Add 3 L of water to a 10 L glass reactor, heat to 25 °C, and add each of 10 g gelatin, 16 g disodium hydrogen phosphate dodecahydrate, and 0.8 g resorcinol under stirring conditions. , the mixture was stirred uniformly. Next, while stirring, 120 g divinylbenzene, 30 g ethylstyrene, 20 g dibenzoyl peroxide, 1800 g styrene, and 1200 g isododecane are mixed to form an oil phase, and the oil phase is added to the above while stirring. Added to the mixture. Close the reactor, inject clean compressed air into the reactor, start stirring, stir rapidly to adjust the particle size of beads in the reactor, gradually program temperature increase to 95 °C, and keep the temperature for 12 hours. After cooling the mixture, it was filtered through a 32 μm mesh sieve, washed and then vacuum dried at 80°C. In this way, 1704 g of a spherical polymer with a smooth surface was obtained.

Subsequently, the sulfonation, carbonization and activation steps were performed according to the conditions of Example 1. The obtained spherical carbon was screened to have a particle size ranging from 0.60 to 0.80 mm, an average pore size of 2.2578 nm, an average specific surface area of 1037 m ² /g, and an average pore volume of 0.5854 cm ³ /g. Spherical carbon DH with an average compressive strength of 94.45 N, an average deposition density of 686 g/L, a crack rate of 0, and a strength of 99.57% was obtained.

Test Example 1 Smoke adsorption test of non-combustion heating type cartridges 1 and 2 formed in combination with at least one part of a tobacco leaf).

Specifically, the cartridge having the structure shown in FIG. 1 was constructed by connecting a hollow composite nozzle rod 1, a temperature lowering section 2, a hollow filtration section 3, and a tobacco section 4.

The structure of the hollow composite nozzle rod 1 was as follows: the center was an empty part containing spherical carbon, and both ends were tow parts formed by low-resistance tows. The manufacturing process of hollow composite nozzle rod is as follows: the tow is cut into uniform pieces, forming paper is used for the exterior, and by adjusting the working speed of the composite machine, the tow pieces are cut into small pieces of about 6 mm. After fixing the molded paper in the hollow spaces, spherical carbon was uniformly added to the hollow spaces, and the material was rolled up and molded by rotation to produce a hollow composite nozzle rod.

Cartridge 1 and Cartridge 2 were manufactured according to the filling amount and particle size of spherical carbon. In cartridge 1, the filling amount of spherical carbon was 15 mg, and spherical carbon XH-1 produced in Example 1 with a particle size range of 0.2 to 0.4 mm was selected as spherical carbon. The loading amount was 30 mg, and the spherical carbon DH produced in Example 3 with a particle size range of 0.6 to 0.8 mm was selected as the spherical carbon. Comparative Example 1 uses coconut shell activated carbon (of which the average pore diameter of the coconut shell activated carbon is 1.7268 nm, the specific surface area is 983 m ² /g, and the fine The pore volume was 0.4244 cm ³ /g), and the amount of coconut shell activated carbon added in the comparative example was two specifications: 15 mg and 30 mg.

The cartridges were heated in non-combustible heated smoking devices, and there were at least three non-combustible heated smoking devices and at least 120 cartridges.

The cartridge is heated by a smoking device, the generated smoke is collected and analyzed, and the analysis standards refer to YC/T 254-2008 or the European Union TPD Directive, and the main harmful substances detected are formaldehyde, acetaldehyde. , acetone, acrolein, propionaldehyde, crotonaldehyde, 2-butanone, and butyraldehyde. The measurements showed that the content of harmful substances in the smoke of the non-combustible heated tobacco product containing activated carbon provided by the example was clearly lower than that of Comparative Example 1, especially those generated in the heating process of the smoke generator. The content of a large amount of carbonyl compounds was clearly lowered, indicating that the spherical carbon produced in the example had an excellent selective and specific adsorption effect on carbonyl compounds.

Test Example 2 Smoke Adsorption Test on Non-Combustible Heating Cartridge 3 In this example, the structure of the cartridge 3 is substantially the same as that in Test Example 1, and the tobacco part 4 is filled with a commercially available tea-flavored tobacco sheet. The difference is that the part is covered with a silica gel sheet with uniformly distributed pores and filled with 30 mg of spherical carbon XH-2 from Example 2. The cartridge of Comparative Example 2 was a cartridge that did not contain spherical carbon or other activated carbon and was also referred to as a "blank cartridge."

Heat the cartridge 3 and the cartridge of Comparative Example 2 under the same conditions using a smoking device, refer to the measurement method of CORESTA RECOMMENDED METHOD N ⁰ 74, and inhale the e-cigarette with a smoking machine to inhale the smoke generated. The carbonyl compounds in the smoke were absorbed into the impact bottle filled with an acidic 2,4-DNPH (2,4-dinitrophenylhydrazine) solution. The collected solution of carbonyl compounds was analyzed by high performance liquid chromatography (HPLC-UV) connected to an ultraviolet detector to determine the content of aldehyde and ketone substances, and the measurement results are shown in the table below.

According to the results, due to the adsorption effect of Cartridge 3, the content of harmful substances in the smoke of non-combustible heated cigarettes is significantly lower than that of the blank cartridge, and the content of aldehyde and ketone compounds is significantly lower, especially acetone. The adsorption rate for acetaldehyde (content after adsorption by cartridge 3/content of comparative example 2 x 100%) reached as high as 100%, indicating that the adsorption rate for acetaldehyde exceeded 70%, and the spherical shape produced in Example Carbon has been shown to have an excellent selective and specific adsorption effect on carbonyl compounds in smoke.

The embodiments of the present invention have been described above. However, the invention is not limited to the above embodiments. All modifications, equivalent replacements, improvements, etc. made within the scope and principles of the invention are included within the scope of the claims.

FIG. 3 is a configuration diagram of a cartridge in Test Example 1.

Claims (10)

Application of spherical carbon for smoke adsorption in non-combustible heated tobacco products. The non-combustible heated tobacco product is at least one selected from electrically heated non-combustible heated tobacco products and carbon heated non-combustible heated tobacco products,
Preferably, the "smoke" is a gas emitted from a non-combustible heated tobacco product in a normal pressure environment, or a gas generated from a tobacco product in a negative pressure environment,
Preferably, the appearance of the "smoke" is in a gaseous state and/or a mist state,
Preferably, said "smoke" is generated by a cartridge in a non-combustible heated tobacco product under non-combustible heating conditions, and preferably said heating method is internal heating, external heating or a mixed internal and external heating method. Internal heating means that the heating element is wrapped in a cartridge and the heat can be concentrated in the smoke chamber, while external heating means that the cartridge is inserted into the smoking device and heated, and the heat emitted from the smoking device is transferred to the cartridge. means transmitted to the surface,
The use according to claim 1, characterized in that: The cartridge contains tobacco or a herb that can replace tobacco,
Preferably, the tobacco is at least one selected from leaf tobacco and reconstituted tobacco leaves,
Preferably, the herb capable of replacing tobacco is selected from non-tobacco herbs that can produce smoke when heated at low temperatures;
Preferably, the form of the tobacco is in the form of strands, flakes, particles or powder,
Preferably, the cartridge further includes at least one fragrance and/or other additive, for example, the additive is at least one selected from a smoke agent, a colorant, a binder,
Preferably, the smoke generating agent includes propylene glycol and glycerol, for example, in the cartridge, the content of glycerol is 15 to 70 wt%, and for example, in the cartridge, the content of propylene glycol is 2 wt% or less. is,
The use according to claim 2, characterized in that: the smoke contains or does not contain nicotine or nicotine salts;
Preferably, the smoke further includes a carbonyl compound, and preferably, the carbonyl compound is at least one component selected from formaldehyde, acetaldehyde, acetone, acrolein, propionaldehyde, crotonaldehyde, butyraldehyde, and 2-butanone. including;
Preferably, said carbonyl compound originates from fumes generated by heating and/or atomization of a cartridge, preferably from fumes generated by heating and/or atomization of a smoke agent;
Preferably, the fumes optionally include or are free of nitrosamine compounds;
Preferably, the smoke further comprises other components, such as 1-hydroxy-2-propanone, 3-hexen-2-one, 4-hydroxy-2-pentanone, furfural, 5-(hydroxymethyl)furfural. , 2-oxo-3-cyclopenten-1-acetaldehyde, furfuryl alcohol, 2-hexenal, 1-acetoxy-2-propanone, cyclopentene-1,4-dione, 2-methyl-2-cyclopenten-1-one, 2( 3H)-furanone, 1,2-cyclopentadione, 2-hydroxy-3-methyl-2-cyclopenten-1-one, 2,3-dimethyl-2-cyclopenten-1-one, 2,5-dimethyl-4 -Hydroxy-3(2H)-furanone, megastigmatrienone A, megastigmatrienone B, megastigmatrienone C, megastigmatrienone D, norsolanadione, 4,4-dimethyl-2-cyclohexen-1-one, 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one, benzene, cyclohexene, propionic acid, acrylic acid, propylene glycol, 2,2'-ethoxypropane, 2-hydroxyethyl acetate , methyl 2-oxopropanoate, cumene, diethylene glycol diethyl ester, phenol, 2-methylphenol, 3-methylphenol, 4-methylphenol, 2-methoxyphenol, 3-furoate, catechol, 2,3-dihydrobenzofuran, 1 ,4-benzenediol, 3-methyl-1,2-benzenediol, 2-methoxy-4-vinylphenol, solanone, isoeugenol, farnesol, β-nicotyline, 2,3-bipyridine, quinic acid, 3-oxo- α-ionol, 4,8-dimethyl-1-nonanol, neophytadiene, hexadecanoic acid, methyl 9,12,15-octadecatrienoate, 5-ene-3-cholesteryl acetate, 5,22-diene acetate At least one selected from the components 3-soyster ester,
Preferably, the smoke further contains other components, for example, at least one compound selected from the elements Cr, Ni, Fe, Al, Sn, Pb, Cd, As, Sb, Hg, Cu,
Preferably, the smoke further comprises particulate matter and/or aerogels and may contain components such as CO, _CO2 and/or airborne gases;
Preferably, the spherical carbon is used to selectively adsorb at least one of the components or substances in smoke.
The use according to any one of claims 1 to 3, characterized in that: the spherical carbon is selected from spherical activated carbon;
Preferably, the weight of the spherical carbon for adsorbing fumes is between 1 and 300 mg, preferably between 10 and 60 mg;
Preferably, the specific surface area B of the spherical carbon is lower than 1300 m ² /g;
Preferably, the average particle size of the spherical carbon is 0.2 to 1.5 mm,
Preferably, the average pore diameter of the spherical carbon is 1.5 to 3.2 nm,
Preferably, the average pore volume of the spherical carbon is 0.35 to 0.5 cm ³ /g,
Preferably, the spherical carbon includes mesopores (pore size between 2 and 50 nm) and micropores (pore size less than 2 nm), where the pore volume of the mesopores is between 0.003 and 0.018 cm ³ /g. can be,
Preferably, the pore volume of the micropores is ≧4300 cm ³ /g,
Preferably, the compressive strength of the spherical carbon is 10 to 100 N,
Preferably, the crack rate of the spherical carbon is less than 10.0%,
Preferably, the deposition density of the spherical carbon is 300 to 900 g/cm ³ ,
Preferably, the spherical carbon is used for smoke adsorption in an unmodified state,
Preferably, the spherical carbon is used for smoke adsorption without being bound or combined with other adsorbents;
Preferably, the raw material for producing the spherical carbon is a spherical polymer, such as a porous spherical polymer and a microporous spherical polymer,
Preferably, the method for producing spherical carbon comprises:
1) carbonizing the spherical polymer;
2) activating the product obtained in step 1);
The use according to any one of claims 1 to 4, characterized in that: The cartridge includes a composite nozzle rod containing spherical carbon, and for example, the composite nozzle rod includes at least one composite unit including an empty part containing spherical carbon in the center and tow parts connected to both ends of the empty part. ,
Preferably, the cartridge further includes a tobacco section, a hollow filtration section, a temperature cooling section, and/or a solid filtration section, for example, a tobacco section, a hollow filtration section, a temperature cooling section, and a solid filtration section arranged in this order. , the cooling section may include a phase change material;
Alternatively, the cartridge includes a heating section, a first tobacco section, a second tobacco section, and a hollow filtration section, for example, the heating section, the first tobacco section, the second tobacco section, and the hollow filtration section are arranged in sequence. Preferably, the heating section includes a carbon rod, preferably the first tobacco section includes a vaporization cavity, and preferably the second tobacco section includes a condensation cavity;
Preferably, the composite nozzle rod can be combined with one, two or more parts of any of the above to form a cartridge,
Preferably, the hollow filtration section and the solid filtration section include a filtration media tow,
Preferably, the spherical carbon is used to adsorb smoke in any one or more of the structures of the cartridge.
The use according to any one of claims 2 to 5, characterized in that: A cartridge comprising spherical carbon having the definition as set forth in claim 5,
Preferably, the cartridge has the structure according to claim 3 or 6,
Preferably, the cartridge, in addition to comprising the spherical carbon, may further comprise other adsorbents, catalysts and/or additives suitable for use in the cartridge.
A cartridge characterized by: A non-combustion heated tobacco product comprising the spherical carbon and/or the cartridge,
Preferably, the weight of spherical carbon in said tobacco product is between 1 and 300 mg;
Preferably, the non-combustible heated tobacco product further comprises a smoking device for heating the cartridge.
A non-combustible heated tobacco product characterized by: comprising coupling the cartridge to a smoking device;
The method for producing a non-combustible heated tobacco product according to claim 8. contacting the spherical carbon according to claim 5 with the smoke according to any one of claims 1 to 4,
Preferably, the method for selectively adsorbing at least one component in smoke comprises using the spherical carbon according to claim 5 to absorb smoke containing at least one component according to any one of claims 1 to 4. including bringing into contact with
A smoke adsorption method characterized by:

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