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Modified active carbon additive for reducing CO release amount in flue gas and preparation method and application thereof

An activated carbon and release technology, applied in the application, tobacco, e-liquid filter and other directions, can solve the problem of short time, and achieve the effect of simple preparation, good application prospect and reduction of CO release.

Active Publication Date: 2018-09-14
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the time for the smoke to pass through the filter is very short, and at the same time the components in the smoke are mixed together and pass through the filter in the form of aerosols.

Method used

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  • Modified active carbon additive for reducing CO release amount in flue gas and preparation method and application thereof
  • Modified active carbon additive for reducing CO release amount in flue gas and preparation method and application thereof
  • Modified active carbon additive for reducing CO release amount in flue gas and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Add 1g of polyvinylpyrrolidone with a molecular weight of 1,000,000 to 100g of water, stir to dissolve it into a PVP aqueous solution, add 100g of 1wt% cuprous sulfate aqueous solution, adjust the pH value to 5.0 with acetic acid, and react at 45°C 6hr, the PVP-Cu(I) complex was precipitated. Filtrate, wash the filter residue with water to remove free metal ions, and dry in vacuum to obtain the PVP-Cu(I) complex.

[0034] Add 1g of PVP-Cu(I) complex to 100g of ethanol to form a uniform solution, add 10g of coconut shell activated carbon, stir at room temperature for 30min, filter, and dry the filter residue to obtain an improvement in the amount of CO released in the flue gas. Activated carbon additive;

[0035] Add the modified activated carbon into the cigarette mouthpiece rod in an amount of 50 mg / piece, and make a cigarette according to a conventional method. The prepared cigarettes were analyzed for smoke components, and at the same time, a blank sample and a con...

Embodiment 2

[0039] Add 10g of vinylpyrrolidone-maleic acid copolymer with a molecular weight of 1000 into 100g of water, stir to dissolve it into a PVP aqueous solution, add 25g of 10wt% cuprous chloride aqueous solution, and adjust the pH value to 5.0 with hydrochloric acid , At 45°C, react for 6 hours to precipitate the PVP-Cu(I) complex. Filtrate, wash the filter residue with water to remove free metal ions, and dry in vacuum to obtain the PVP-Cu(I) complex.

[0040] Add 10g of PVP-Cu(I) complex to 100g of ethanol to form a uniform solution, add 10g of wood chip activated carbon, stir at room temperature for 30min, filter, and dry the filter residue to obtain a modification that reduces the amount of CO released in the flue gas Activated carbon additive;

[0041] Add the modified active carbon into the cigarette mouthpiece rod in the amount of 100 mg / stick, and make a cigarette according to a conventional method. The smoke components of the prepared cigarettes were analyzed, and at t...

Embodiment 3

[0045] The polyvinylpyrrolidone of 3g molecular weight 5000 and 3g molecular weight are the vinylpyrrolidone-maleic acid copolymer of 100000, join in 100g water, stir and make it dissolve into PVP aqueous solution, add the 5wt% cuprous acetate aqueous solution of 100g, use After adjusting the pH value to 5.0 with hydrochloric acid, react at 45° C. for 6 hours to precipitate the PVP-Cu(I) complex. Filtrate, wash the filter residue with water to remove free metal ions, and dry in vacuum to obtain the PVP-Cu(I) complex.

[0046] Add 3g of PVP-Cu(I) complex to 100g of ethanol to form a uniform solution, add 1g of walnut shell activated carbon, stir at room temperature for 30min, filter, and dry the filter residue to obtain an improvement in the amount of CO released in the flue gas. Activated carbon additive;

[0047] The modified activated carbon was added to the cigarette mouthpiece in an amount of 10 mg / piece, and a cigarette was made according to a conventional method. The s...

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Abstract

The invention relates to a modified active carbon additive for reducing CO release amount in flue gas and a preparation method and application thereof and belongs to the technical field of cigarette harm reduction. The method comprises the following steps: adding a polyvinyl pyrrolidone (PVP) compound into water, and performing stirring for dissolving the compound to obtain a PVP aqueous solution;adding a cuprous salt aqueous solution of which the concentration is 1wt%-10wt% to the PVP aqueous solution, adjusting the pH value to be 5.0 with acid, performing reaction at 45 DEG C until no precipitate is separated out, performing filtration, washing the filter residue with water to remove free metal ions, and performing drying to obtain a PVP-Cu(I) complex; and dissolving the PVP-Cu(I) complex in ethanol, adding active carbon, performing stirring at room temperature for 30 min, performing filtration, and drying the filter residue to obtain the modified active carbon additive. The modified active carbon additive provided by the invention is simple in preparation and low in cost; after the prepared product is added to a cigarette filter, the CO release amount in the flue gas can be obviously reduced; and furthermore, the product has no obvious influence on the smoking taste of cigarettes and has good application prospects.

Description

technical field [0001] The invention belongs to the technical field of cigarette harm reduction, and in particular relates to a modified activated carbon additive for reducing CO emission in smoke and a preparation method thereof. Meanwhile, the present invention also relates to the application of the additive. Background technique [0002] In recent years, due to the impact of the World Health Organization and the anti-smoking campaign, at the same time, consumers have paid more attention to their own health, and some changes have taken place in the international cigarette consumption market. In order to reduce the harm of tobacco products to consumers, the international tobacco industry has intensified research efforts in many fields including tobacco leaf production, cigarette production technology and tar reduction technology, and the international cigarette market has also accelerated to lower tar, The development trend of cigarettes with low nicotine and other harmful...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24D3/02A24D3/06
CPCA24D3/0225A24D3/061
Inventor 王晋黄海涛许永孔维松李晶刘欣杨叶昆张涛杨光宇李雪梅
Owner CHINA TOBACCO YUNNAN IND
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