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Preparation of thermal stabilizing manganese oxide molecular sieve catalyst for reducing CO and NO of cigarette smoke and application

A cigarette smoke and molecular sieve technology, which is applied in the directions of manganese oxide/manganese hydroxide, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problem of increased catalyst addition and unfavorable cigarette process. , do not have and other problems, to achieve the effect of improving the structural performance

Inactive Publication Date: 2009-12-23
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In these two patents, nano-iron oxide is used, which makes the amount of catalyst added in the cigarette must be increased, which is not conducive to the cigarette process
To sum up, if a material is both a catalyst and an oxidant, it will be the first choice for catalytic reduction of CO and NO. Obviously, none of the materials in the above patents have this function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Based on Cu (mass fraction: 0.5%), prepare a certain proportion of manganese sulfate and silver nitrate to make a nitric acid solution with pH=1, slowly drop into the purple-red potassium permanganate solution, manganese sulfate and permanganate The molar ratio of potassium is maintained at about 1.4. The black precipitate formed by the reaction was vigorously stirred at 100°C and refluxed for 48h, filtered, washed with deionized water, and finally dried at 110°C for 5h. After the catalyst is prepared, 10 mg / cigarette is added to the shredded tobacco of the cigarette by spraying. The smoke analysis of cigarette sticks shows that the addition of heat-stabilized manganese oxide molecular sieves to shredded tobacco can significantly reduce CO, NO and fused-ring aromatic hydrocarbon benzo[a]pyrene in cigarette smoke, among which CO is reduced It can reach 24%, the reduction of NO can reach 21.98%, and the reduction of fused-ring aromatic hydrocarbon benzo[a]pyrene in flue ...

Embodiment 2

[0033] Based on Ag (mass fraction: 0.5%), prepare a certain proportion of manganese sulfate and silver nitrate to make a nitric acid solution with pH=1, slowly drop it into the purple-red potassium permanganate solution, manganese sulfate and permanganate The molar ratio of potassium is maintained at about 1.4. The black precipitate formed by the reaction was vigorously stirred at 100°C and refluxed for 48h, filtered, washed with deionized water, and finally dried at 110°C for 5h. After the catalyst is prepared, 30 mg / cigarette is added to the shredded tobacco of the cigarette by spraying. The smoke analysis of cigarette sticks shows that the addition of heat-stabilized manganese oxide molecular sieves to shredded tobacco can significantly reduce CO, NO and fused-ring aromatic hydrocarbon benzo[a]pyrene in cigarette smoke, among which CO is reduced It can reach 29.2%, NO reduction can reach 24.57%, and flue gas fused-ring aromatic hydrocarbon benzo[a]pyrene can reduce up to 2...

Embodiment 3

[0035] Based on Ag (mass fraction: 0.1%), prepare a certain proportion of manganese sulfate and silver nitrate into a nitric acid solution with pH=1, slowly drop it into the purple-red potassium permanganate solution, manganese sulfate and permanganate The molar ratio of potassium is maintained at about 1.4. The black precipitate formed by the reaction was vigorously stirred at 100°C and refluxed for 48h, filtered, washed with deionized water, and finally dried at 110°C for 5h. After the catalyst is prepared, 30 mg / cigarette is added to the shredded tobacco of the cigarette by spraying. The smoke analysis of cigarette sticks shows that the addition of heat-stabilized manganese oxide molecular sieves to shredded tobacco can significantly reduce CO, NO and fused-ring aromatic hydrocarbon benzo[a]pyrene in cigarette smoke, among which CO is reduced It can reach 21.7%, the reduction of NO can reach 18.10%, and the reduction of fused-ring aromatic hydrocarbon benzo[a]pyrene in flu...

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PUM

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Abstract

The invention relates to a preparation of a thermal stabilizing manganese oxide molecular sieve catalyst for reducing CO and NO of cigarette smoke and an application, and the manganese oxide molecular sieve is used as a catalytic material for reducing CO and NO of cigarette smoke. The manganese oxide molecular sieve is doped with metal ions. The catalyst is a thermal stabilizing material which can reach to be 600 to 700 DEG C, has catalytic activity in longer distance along the burning direction of the cigarette and has more advantages than the former catalyst; in addition, the material has high catalytic activity at the temperature of about 200 DEG C. The catalyst powder has thermal stability which leads the catalyst powder to be cracked only at the highest temperature point in a cigarette burning area, thus guaranteeing that CO and NO can be effectively reduced in a bigger area of the cigarette section of the cigarette and wider temperature range (200 to 600 DEG C).

Description

technical field [0001] The invention belongs to the technical field of cigarette preparation, and in particular relates to a heat-stable molecular sieve catalyst for reducing CO and NO, which are harmful substances in cigarette smoke, and a preparation method and application of the catalyst. Background technique [0002] Since tobacco was introduced to Europe from the Americas in the early 16th century, people have had different opinions and debates on smoking and health issues. In particular, the Royal Society of Medicine officially published a report on "Smoking and Health" in 1954, which reviewed the epidemiological Research, tobacco consumption trends, tobacco chemical components and their carcinogenicity, and the mechanism of smoking on humans and animals have clearly pointed out that smoking is harmful to human health, such as smoke CO can lead to tissue hypoxia. On May 21, 2003, the 56th World Health Assembly passed the "Framework Convention on Tobacco Control" formul...

Claims

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Application Information

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IPC IPC(8): A24B15/28B01J23/34B01J23/68B01J23/889C01G45/02
Inventor 谢兰英刘琦曾毅高泽华刘斌胡蓉蓉王德铮程易
Owner CHINA TOBACCO HUNAN INDAL CORP
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