Search

CN-118044641-B - Heating cigarette tobacco particles with strong CO adsorption and high water wettability and preparation method thereof

CN118044641BCN 118044641 BCN118044641 BCN 118044641BCN-118044641-B

Abstract

The invention provides a heating cigarette tobacco particle with strong CO adsorption and high water wettability and a preparation method thereof, the heated cigarette tobacco particles are formed by adding organometallic complex-loaded porous solid particles to the tobacco component. In the method, the porous solid particles loaded by the organic metal complex can realize high-efficiency adsorption of CO, reduce the release amount of CO in the flue gas, and effectively solve the problems of weak adsorption of CO and weak wettability of the existing tobacco particles.

Inventors

  • ZHANG XIAOYU
  • SUN SONG
  • ZHOU SHUN
  • ZHANG JIN
  • WANG XIAOFENG
  • CAO YUN
  • TIAN HUIJUAN
  • LI YANYAN
  • GUAN MINGJING
  • CAI MENGDIE

Assignees

  • 安徽中烟工业有限责任公司

Dates

Publication Date
20260512
Application Date
20240318

Claims (7)

  1. 1. The preparation method of the heating cigarette tobacco particles with strong CO adsorption and high water wettability is characterized by comprising the following steps of: (1) Dissolving an organic metal complex ligand in an organic solvent to prepare an organic metal complex impregnating solution; (2) Superfine pulverizing tobacco components to obtain tobacco powder with particle size not greater than 0.15 mm; (3) Immersing a porous solid material and the tobacco powder into an organic metal complex immersion liquid for immersion; (4) Washing the mixed solution obtained in the step (3) with deionized water, drying the precipitate in a vacuum drying oven, crushing and sieving to obtain tobacco powder, mixing and uniformly stirring the tobacco powder and an atomizing agent, uniformly extruding the mixture in a variable density extruder, rounding and sieving the extruded material to obtain heated cigarette tobacco particles; In the step (1), the metal in the organometallic complex ligand is at least one of Ni, fe and Co, wherein the organometallic complex ligand comprises M (R), wherein M represents at least one of Ni (0), fe (0) and Co (0), R is single-component or multicomponent and is at least one of H, cl, br, F, CN, C-1-C-6 alkyl substituted by one or more halogens or C-3-C-6 cycloalkyl; in the step (3), the porous solid material comprises at least one of activated carbon, chitosan hydrogel and sodium alginate; The organic metal complex ligand accounts for 0.5-3wt% of the mass of the porous solid material, and the porous solid material accounts for 2-10wt% of the mass of the tobacco powder.
  2. 2. The method according to claim 1, wherein in the step (1), the organic solvent comprises at least one of ethanol, isopropanol, propylene glycol, ethyl acetate and tetrahydrofuran.
  3. 3. The method of claim 1, wherein in step (2), the tobacco component is at least one of flue-cured tobacco, burley tobacco, and aromatic tobacco.
  4. 4. The method according to claim 1, wherein in the step (3), the soaking time is 10 to 15 hours.
  5. 5. The preparation method of the tobacco powder according to claim 1, wherein the specific method of the step (4) is that the mixed solution of the step (3) is washed by deionized water, the precipitate is dried in a vacuum drying oven, crushed and passed through a 100-mesh screen to obtain tobacco powder, the tobacco powder and an atomizing agent are mixed and uniformly stirred, the mixture is uniformly extruded in a variable density extruder, the extruded material is rounded on a rounding machine with the rotating speed of 500-1200 r/min, tobacco particles after rounding pass through a 0.840mm screen and a 0.280-mm screen in sequence to obtain heated cigarette tobacco particles with the particle size of 0.280-0.840 mm as a final sample, and the atomizing agent accounts for 20-30 wt% of the mass of the tobacco powder.
  6. 6. The method of claim 1 or 5, wherein the atomizing agent is glycerol or propylene glycol or a mixed solution of glycerol and propylene glycol in a mass ratio of 1-3:1.
  7. 7. A heated cigarette tobacco particle produced by the method of any one of claims 1-6.

Description

Heating cigarette tobacco particles with strong CO adsorption and high water wettability and preparation method thereof Technical Field The invention belongs to the field of heating cigarettes, and particularly relates to heating cigarette tobacco particles with strong CO adsorption and high water wettability and a preparation method thereof. Background The heated cigarettes are widely accepted by consumers in recent years because the substances such as flavor components and nicotine in the core material are transferred to the consumers in a manner that the cigarettes are not burned by heating, and the release amount of harmful substances generated by high-temperature combustion is greatly reduced. It has been found that the main harmful substances in the tobacco smoke of the heated cigarettes include carbon monoxide, nitrogen oxides, phenols, volatile nitrogen-based compounds, hydrocyanic acid, some heterocyclic compounds peculiar to tobacco, and the like. The release amount of CO content is the highest, and the release amount of CO is harmful to human bodies, so that the reduction of the release amount of CO is a necessary choice for survival and development of the tobacco industry. In recent years, the social interest in smoking and health problems is continuously strengthened, and in order to reduce the harm of tobacco products to human health and better protect the health of consumers, tobacco researchers have conducted a great deal of research in the fields of tobacco leaf production, processing, tar-reducing and harm-reducing technologies and the like, developed new means including biotechnology, new material technology and the like, and successfully applied to tobacco production. Research and development of new materials and new methods for strongly adsorbing CO in flue gas have been a hotspot problem in this field. The organic metal-based adsorbent has stronger chemical adsorption on CO gas molecules, particularly under the condition of lower metal oxidation state, covalent bonds are formed between metal centers in the adsorbent and target gas, so that the adsorption effect on CO is enhanced, the moisture of tobacco can be locked, the outside moisture is not absorbed, and the moisture of the tobacco is kept. The invention further loads the organic metal complex on porous solid materials such as active carbon particles, chitosan hydrogel, sodium alginate hydrogel and the like to prepare the solid particle additive, which can realize high-efficiency adsorption of CO and reduce the release amount of CO in flue gas. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the heating cigarette tobacco particles with strong CO adsorption and high wettability and the preparation method thereof, and solves the technical problems that the existing tobacco particles have weak CO adsorption capacity and weak wettability to the tobacco particles. The invention adopts the following technical scheme to solve the technical problems: The invention provides a heating cigarette tobacco particle with strong CO adsorption and high wettability, which is prepared by adding porous solid particles loaded by an organic metal complex into a tobacco component, so that the problems of weak CO adsorption and weak wettability of the existing tobacco particles are solved. The invention further provides a preparation method of the heating cigarette tobacco particles with strong CO adsorption and high water wettability, which comprises the following steps: (1) Dissolving an organic metal complex ligand in an organic solvent to prepare an organic metal complex impregnating solution; (2) Superfine pulverizing tobacco components to obtain tobacco powder with particle diameter not greater than 0.15 mm; (3) Immersing a porous solid material and the tobacco powder into an organic metal complex immersion liquid for immersion; (4) Washing the mixed solution obtained in the step (3) with deionized water, drying the precipitate in a vacuum drying oven, crushing and sieving to obtain tobacco powder, mixing the tobacco powder and an atomizing agent, uniformly stirring, uniformly extruding in a variable density extruder, rounding and sieving the extruded material to obtain the heated cigarette tobacco particles. Further, in the step (1), the metal in the organometallic complex ligand is at least one of Ni, fe, and Co. The organometallic complex ligand comprises M (R), wherein M represents at least one of Ni (0), fe (0) and Co (0), and R is single component or multi-component and is at least one selected from H, cl, br, F, CN (cyano), C-1-C-6 alkyl substituted by one or more halogens or C-3-C-6 cycloalkyl. Further, in the step (1), the organic solvent includes at least one of ethanol, isopropanol, propylene glycol, ethyl acetate and tetrahydrofuran. Further, in the step (2), the tobacco component is at least one of flue-cured tobacco, burley tobacco and aromatic tobacco. Further, in the step (3), the porous solid