Additive agent selectively reducing aldehydes matter in cigarette flue gas, production method and application thereof

A technology for cigarette smoke and additives, which is applied in the field of additives for selectively reducing aldehydes in cigarette smoke, and can solve the problems of reduced adsorption of aldehydes, secondary pollution, easy blockage, etc., to improve adsorption efficiency and prevent Effects of shedding and improving reactivity

Active Publication Date: 2008-06-11
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pure physical adsorption, less ion exchange adsorption, easy to desorb, causing secondary pollution, and the selection of other adsorbents is too small, the tar particle size in the smoke is 0.01-0.3um, easy to smoke during cigarette smoking Blocking the pores of the adsorbent, resulting in a decrease in the adsorption of aldehydes in the gas phase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH 7 to 8, dry the preliminarily treated carrier, add a saturated tryptophan solution, use the impregnation method, reach equilibrium through ion exchange, adsorption, etc. after 12 hours, and apply the prepared additive to the cigarette filter .

Embodiment 2

[0039]Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH For about 7-8, dry the preliminarily treated carrier, add a saturated solution of melamine phosphate, etc., use the impregnation method, introduce amino groups, amide groups, etc. by ion exchange, adsorption, etc. after 12 hours, filter and wash. Apply the prepared additive to cigarette filters, and test the aldehydes in cigarette smoke by high-performance liquid chromatography. The test results are shown in Table 1. The results show that after using the additive, formaldehyde in cigarette smoke is reduced by 48%, and acrolein is reduced 27%, 50% reduction in crotonaldehyde.

Embodiment 3

[0041] Select coarse-porous silica gel with a particle size of 20-60 mesh and a pore size of 10-150 nm, and calcinate it in a muffle furnace at 400°C for 1 hour to remove residual organic matter in the pores, soak it in 12% hydrochloric acid overnight, and wash with water until the pH For about 7-8, dry the preliminarily treated carrier, add saturated polyphosphate amine solution, adopt impregnation method, reach equilibrium through ion exchange and adsorption after 12 hours, filter and wash. Apply the prepared additive to cigarette filters, and test the aldehydes in cigarette smoke by high-performance liquid chromatography. The test results are shown in Table 1. The results show that after using the additive, formaldehyde in cigarette smoke is reduced by 38%, and acrolein is reduced 21%, 50% reduction in crotonaldehyde.

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Abstract

The invention discloses an additive to selectively lower the aldehydes substances in cigarette smoke, which uses the silica gel with thick holes as the carrier and introduces the functional group through modification to coat a layer of chemical compounds provided with amidogen, carbamido or amide and capable of reacting with aldehydes substances on the carrier surface and the hole channel surface, wherein the modified carrier is applied in the cigarette filter up and can selectively lower the contents of the aldehyde substances in the cigarette smoke, such as formaldehyde, aldehyde, propanal, acrylic aldehyde, crotonaldehyde and the like.

Description

technical field [0001] The invention belongs to the technical field of cigarette preparation, and in particular relates to an additive for selectively reducing aldehydes in cigarette smoke, a preparation method and application of the additive. Background technique [0002] At present, at least 20 kinds of aldehydes and 6 kinds of ketones have been found in the gas phase of cigarette smoke. Some aldehydes and ketones in the gas phase of smoke are the result of direct transfer of tobacco components, and the highest content is formaldehyde, acetaldehyde, propionaldehyde and acrolein. , crotonaldehyde, furfural and acetone. Some of the volatile carbonyl compounds, especially formaldehyde, acrolein and crotonaldehyde, are toxins of respiratory cilia, which inhibit the removal of lung excretions after inhalation, which can lead to lung diseases. [0003] In order to increase the smoking safety of cigarettes, various methods can be used to reduce harmful aldehydes in cigarette smo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/12A24D3/02C09C3/08
Inventor 王诗太谭海风银董红金勇丁时超赵立红尹新强范红梅
Owner CHINA TOBACCO HUNAN INDAL CORP
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