Adsorbent for reducing release amount of HCN (hydrogen cyanide) in mainstream smoke of cigarette

Abstract

The invention belongs to the technical field of cigarette production and particularly relates to an adsorbent for reducing the release amount of HCN (hydrogen cyanide) in mainstream smoke of a cigarette. The adsorbent belongs to a molecular sieve-polyether sulfone composite material, and the specific preparation steps include microporous-mesoporous molecular sieve SBA-15 preparation, molecular sieve modification, spinning and the like. The molecular sieve-polyether sulfone composite material provided by the invention has a loose and porous surface and contains a large amount of microporous, mesoporous and macroporous channel structures, thereby being favorable for improving the adsorption activity sites and the transmission efficiency of adsorbed substances; the prepared composite material better utilizes the weak acidity of the HCN and the complexing action of -CN groups and is used in a cigarette filter tip to prepare a composite filter tip, and 20 mg of the composite material is added into each cigarette filter tip, so that the release amount of the HCN in the mainstream smoke of the cigarette can be reduced by 1 / 4 to 1 / 3, and the adsorbent has relatively good promotion and application values.

Description

technical field [0001] The invention belongs to the technical field of cigarette production, and in particular relates to an adsorbent for reducing HCN release in mainstream smoke of cigarettes. Background technique [0002] Tobacco is one of the important economic crops in our country and occupies an important position in the national economy. However, as people pay more and more attention to health, the smoking safety of cigarettes has become a research hotspot in recent years, which has attracted great attention from governments all over the world. [0003] Hydrocyanic acid, one of the main harmful components in mainstream cigarette smoke, is an important environmental pollutant, and its toxic mechanism is: the combination of cyanide ion and ferric iron in oxidative cytochrome oxidase blocks the oxidation process The electron transfer of ferric iron in the medium makes the tissue cells unable to use oxygen, forming internal suffocation, coma, respiratory arrest, and seve...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, in order to reduce the release of harmful components in the mainstream smoke of cigarettes, it is usually carried out from many aspects such as filter tip processing and tobacco pretreatment, among which the development of new materials with adsorption and decomposition functions is also one of the commonly used harm reduction measures , but due to the long development cycle and certain variability of new harm-reducing and coke-reducing materials, it is difficult, especially for the harm-reducing adsorption materials for reducing the HCN content in cigarettes, which are still in the research stage, and further in-depth exploration and research are needed

Images