Mesoporous novel materials for absorbing nitrosamine in main flow flue gas in tobacco

A technology of mainstream smoke and mesoporous materials, applied in tobacco, tobacco treatment, application, etc., can solve the problems of poor adsorption of nitrosamines, high cost, complicated steps, etc., to improve adsorption performance, reduce total amount, and improve utilization rate effect

Inactive Publication Date: 2007-10-17
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steps of these modification methods are complicated, the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] At room temperature, a certain amount of glycerin was weighed and dissolved in 2 g of absolute ethanol, and the calcined SBA-15 was added according to the mass ratio of glycerin and mesoporous molecular sieve material at 1:9 and stirred and mixed continuously until the ethanol was basically volatilized. The obtained sample was dried at 313K and recorded as 10G / SBA-15. Add it to the mouthpiece of the cigarette according to the addition amount of 40mg per cigarette, light the cigarette, collect the mainstream smoke and analyze the nitrosamine content therein. In the same way, add roasted SBA-15 to the mouthpiece, collect the flue gas and analyze the content of nitrosamines for comparison. (1) Added in the filter rods of flue-cured tobacco type a sample cigarettes (tar 14mg / stick, smoke nicotine content 1.2mg / stick), SBA-15 reduces the content of nitrosamines in mainstream smoke from 3.30nmol / stick 10G / SBA-15 reduced the nitrosamine content to 2.5nmol / branch, a decrease o...

Embodiment 2

[0020] At room temperature, a certain amount of glycerin was weighed and dissolved in 2 g of absolute ethanol, and the calcined MCM-41 was added according to the mass ratio of glycerin and mesoporous molecular sieve material at 1:9 and stirred continuously until the ethanol was basically volatilized. The obtained sample was dried at 313K and recorded as 10G / MCM-41. Add it to the mouthpiece of the cigarette according to the addition amount of 40mg per cigarette, light the cigarette, collect the mainstream smoke and analyze the nitrosamine content therein. In the same way, add roasted SBA-15 to the mouthpiece, collect the flue gas and analyze the content of nitrosamines for comparison. Added in the filter rods of flue-cured tobacco type a sample cigarettes (tar 14mg / stick, smoke nicotine content is 1.2mg / stick), MCM-41 itself reduces the content of nitrosamines in mainstream smoke from 3.30nmol / stick to 2.08nmol / cartridge, a reduction of 37%; while 10G / SBA-15 reduced the conten...

Embodiment 3

[0022]At room temperature, a certain amount of glycerin was weighed and dissolved in 2 g of absolute ethanol, and powdered coconut shell activated carbon was added according to the mass ratio of glycerin and activated carbon of 1:9, and the mixture was continuously stirred until the ethanol volatilized. The obtained sample was dried at 313K and recorded as 10G / Charcoal-p. Add it to the mouthpiece of the cigarette according to the addition amount of 40mg per cigarette, light the cigarette, collect the mainstream smoke and analyze the nitrosamine content therein. In the same way, powdered activated carbon was added to the mouthpiece, the flue gas was collected, and the content of nitrosamines was analyzed for comparison. Sample 10G / charcoal (granular activated carbon) was prepared by the same method. Added to the filter rods of flue-cured tobacco type a sample cigarettes (tar 14mg / cigarette, smoke nicotine content 1.2mg / cigarette), powdered activated carbon reduces the content ...

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Abstract

The present invention discloses a novel mesoporous material used for adsorbing nitrosamine in tobacco main stream flue gas, wherein high adsorption capability mesoporous material is used as additions material of cigarette filter tip, and the mesoporous material is made by spreading high viscosity and difficult volatile liquid film compounds on inside and outside surface of mesoporous molecular screen, or the mesoporous material is mesoporous molecular screen containing template agent micelle. The present invention implement surface/surface layer modification for mesoporous molecular screen material with more simple and effective method, increases emphatically the capability for absorbing amine nitrite in smoke, and it has the features of energy saving, time saving, environment pollution reducing and cost reducing, therefore it has obvious economic benefit and social benefit.

Description

1. Technical field [0001] The invention relates to a new mesoporous material, in particular to a new mesoporous material for adsorbing nitrosamine in mainstream tobacco smoke obtained by modifying the surface of a mesoporous molecular sieve material. 2. Background technology [0002] Mesoporous materials are formed by using surfactants as templates, using physical and chemical processes such as sol-gel, emulsion or microemulsion, and assembled through the interface between organic and inorganic substances. inorganic porous materials. In its hydrothermal synthesis process, the organic template agent uses hydrophobic groups to form a "sphere center" and forms a "spherical surface" with hydrophilic groups through long chains to form micelles to guide and form a pore structure. Generally, it is necessary to remove the surfactant in the synthetic raw powder through roasting or solvent extraction to obtain mesoporous molecular sieves. [0003] As an important inorganic material,...

Claims

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Application Information

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IPC IPC(8): A24D3/06
CPCA24D3/14A24B15/245
Inventor 朱建华高玲曹毅王英杨菁
Owner NANJING UNIV
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