Ferrous complex additive for reducing CO emission in flue gas, preparation method and application thereof

An additive and release technology, applied in application, tobacco, food science, etc., can solve problems such as short time, and achieve the effects of simple preparation, low cost and good application prospects

Active Publication Date: 2021-01-29
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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  • Ferrous complex additive for reducing CO emission in flue gas, preparation method and application thereof
  • Ferrous complex additive for reducing CO emission in flue gas, preparation method and application thereof
  • Ferrous complex additive for reducing CO emission in flue gas, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 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% ferrous sulfate aqueous solution, adjust the pH value to 3 with acetic acid, and react at 30°C 5hr, the PVP-Fe(II) complex was precipitated. Filter and wash with distilled water to remove free metal ions, and dry in vacuum to obtain the PVP-Fe(II) complex additive.

[0030] The additive is added to the mouthpiece of the cigarette in the amount of 10mg / stick, and the cigarette is made according to the conventional method. The smoke components of the prepared cigarettes were analyzed, and the blank sample was a cigarette without any materials added. The results are shown in Table 1:

[0031] Table 1 Measurement results of flue gas data

[0032] ID Number of suction ports, mouth / branch Total particulate matter, mg / cartridge Tar, mg / cartridge CO, mg / piece reduction rate blank 7.45 12.32 10.21 11...

Embodiment 2

[0034] Add 10g of vinylpyrrolidone-maleic acid copolymer with a molecular weight of 1000 into 100g of water, stir to make it dissolve into a PVP aqueous solution, add 25g of 10wt% ferrous chloride aqueous solution, and adjust the pH value to 6 with hydrochloric acid , At 60°C, react for 10 hr to precipitate the PVP-Fe(II) complex. Filter and wash with distilled water to remove free metal ions, and dry in vacuum to obtain the PVP-Fe(II) complex additive.

[0035] The additive is added to the mouthpiece rod of the cigarette according to the amount of 100mg / stick, and the cigarette is made according to the conventional method. The smoke components of the prepared cigarettes were analyzed, and the blank sample was a cigarette without any materials added. The results are shown in Table 2:

[0036] Table 2 Measurement results of flue gas data

[0037]

[0038]

Embodiment 3

[0040] 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% ferrous acetate aqueous solution of 100g, use After adjusting the pH value to 4.3 with hydrochloric acid, react at 50° C. for 7 hours to precipitate the PVP-Fe(II) complex. Filter and wash with distilled water to remove free metal ions, and dry in vacuum to obtain the PVP-Fe(II) complex additive.

[0041] The additive is added to the cigarette mouthpiece rod in the amount of 50mg / stick, and the cigarette is made into a cigarette according to a conventional method. The smoke components of the prepared cigarettes were analyzed, and the blank sample was a cigarette without any materials added. The results are shown in Table 3:

[0042] Table 3 Measurement results of flue gas data

[0043] ID Number of suction ports, mouth / branch Total partic...

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Abstract

The invention relates to a ferrous complex additive for reducing CO emission in smoke, a preparation method and application thereof, and belongs to the technical field of cigarette harm reduction. The preparation method is to add polyvinylpyrrolidone compounds into water according to the mass ratio of 1:10-100, stir to dissolve them, and obtain PVP aqueous solution; add ferrous iron with a concentration of 1wt%-10wt% to the PVP aqueous solution Saline solution, after adjusting the pH value to 3-6 with acid, react at 30-60°C until there is no more precipitation, filter, wash the filter residue with water to remove free metal ions, and dry to reduce CO in the flue gas Release amount of ferrous complex additive. The invention is simple in preparation and low in cost, and the prepared ferrous complex additive can obviously reduce the CO release in the smoke when added to the mouthpiece, and meanwhile has no obvious influence on the smoking taste of the cigarette, and has good application prospect.

Description

technical field [0001] The invention belongs to the technical field of cigarette harm reduction, and in particular relates to a ferrous complex additive for reducing CO emission in smoke and a preparation method thereof. At the same time, the invention also relates to the application of the compound 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 i...

Claims

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Application Information

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