CN101999756A - Absorbent for reducing hydrocyanic acid content of main stream smoke of cigarettes and use thereof - Google Patents

Absorbent for reducing hydrocyanic acid content of main stream smoke of cigarettes and use thereof Download PDF

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Publication number
CN101999756A
CN101999756A CN 201010528605 CN201010528605A CN101999756A CN 101999756 A CN101999756 A CN 101999756A CN 201010528605 CN201010528605 CN 201010528605 CN 201010528605 A CN201010528605 A CN 201010528605A CN 101999756 A CN101999756 A CN 101999756A
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cigarette
adsorbent
hydrogen cyanide
flue gas
cyanide content
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秦亮生
银董红
金勇�
刘建福
黎成勇
赵立红
陈潜
郭小义
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China Tobacco Hunan Industrial Co Ltd
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China Tobacco Hunan Industrial Co Ltd
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Priority to CN 201010528605 priority Critical patent/CN101999756A/en
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Abstract

The invention belongs to the field of cigarette harm and tar reduction and relates to an absorbent for reducing hydrocyanic acid content of main stream smoke of cigarettes and use thereof. A mesoporous aluminum oxide absorbent is prepared by using mesoporous aluminum oxide, which is synthesized by using different structure guiding agents, as an absorbent carrier, and by highly dispersing the metal oxide on the surface of the carrier by precipitation, impregnation and the like. The active component of the absorbent is copper oxide. The absorbent of the invention can absorb hydrocyanic acid, and when added in cigarette filter rods, can selectively reduce the hydrocyanic acid content of the main stream smoke of the cigarettes by 10 to 50 percent; and the absorbent reduces harm to smokers but does not influence the mouthfeel of the cigarettes. The additive of the invention can be prepared by a simple technique and added conveniently, thereby meeting requirements for industrial production.

Description

A kind of adsorbent and application thereof that reduces hydrogen cyanide content in the cigarette mainstream flue gas
Technical field
The invention belongs to cigarette lowering harm and decreasing coking field, specifically, relate to a kind of in the adsorbent and the application thereof that can reduce cigarette mainstream flue gas hydrogen cyanide content.
Background technology
Discover that the harmful substances that mainly contains in the cigarette smoke comprises: the carbon monoxide in the flue gas gaseous substance, nitrogen oxide, methacrylaldehyde, volatile aromatics, hydrogen cyanide, volatile nitrosamine etc.; The radioactive element of the condensed-nuclei aromatics in the flue gas granule phase substance matter, phenols, nicotine, nitrosamine (especially tobacco-specific nitrosamine) and some heterocyclic compounds and trace etc.; And the free radical that all exists in mutually of gas phase and grain.Wherein, hydrogen cyanide is colourless or light blue liquid or gas, mildly bitter flavor, has almond sample smell, soluble in water, ethanol, be slightly soluble in ether, its aqueous solution is faintly acid, is a kind of high-volatile category-A violent in toxicity, and the hydrogen cyanide in the cigarette is mainly produced 700-1000 ℃ of cracking by amino acid and related compound, content is about 30-200 μ g/ and props up, HCN can the high swage cytochrome oxidase combination in body become cyaniding high ferro shape cytochrome oxidase through sucking, and loses the effect of itching of transmitting, cause histanoxia and poison, very harmful to human body.Therefore, adopting effective harm reduction means, significantly improve the security of sucking of cigarette, is to be related to the future of tobacco business and the important topic of development, has crucial meaning.
At present, reduce both at home and abroad that the research method of harmful components mainly comprises in the cigarette: dilution method, adsorption filtration method, direct oxidation method and catalytic oxidation.Filter tip ventilation dilution method is the at present external a kind of reducing tar and reducing harm technology that extensively adopts, but it is bigger to the influence of cigarette flavor amount, and acceptance level is lower at home, has certain difficulty in the development of Chinese style cigarette with in using.The adsorption filtration method is studied more extensive at home and abroad, adsorbent commonly used mainly contains active carbon, by ion-exchange carried metal copper, cobalt on active carbon, metal ion such as chromium and silver (WO99/11358 (1999)), developed a kind of this property acticarbon, can effectively adsorb harmful substances such as HCN, yet " carbon flavor " in the active carbon brought offending sensation to the smoker.Patent CN141695A and CN1462652A etc. have set forth catalytic oxidation effect in the hydrogen cyanide in reducing cigarette, show advantages of high catalytic activity.But production cost is higher, and in process of production, has the skewness phenomenon in single cigarette, and is restive.
Above technology can reduce tar and other harmful substance simultaneously by stopping and adsorbing of solid matter, its effect is not so obvious as report on the low-coke tar cigarette but be applied in, the reduction amplitude of tar will be higher than harmful substance and reduce amplitude, and can not reach the requirement that high selectivity reduces the cigarette smoke harmful components.
Yet, have high-specific-surface mesoporous burning aluminium adsorbent and be used for reducing harmful substances such as cigarette mainstream flue gas hydrogen cyanide with preparation and do not see bibliographical information as yet.
Summary of the invention
Purpose of the present invention aims to provide a kind of adsorbent and application that hydrogen cyanide in the main flume is had higher adsorption activity.
A kind of adsorbent that reduces hydrogen cyanide content in the cigarette mainstream flue gas is that load has cupric oxide on mesoporous alumina carrier.
The specific surface of described mesoporous alumina carrier is 240~400m 2/ g, the aperture is 4.0~10nm.
The mass content that described cupric oxide accounts for adsorbent is 5~15%; Be preferably 12%.
A kind of application process that reduces the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas is to have the adsorbent of cupric oxide to add in the cigarette load on mesoporous alumina carrier, is used for reducing cigarette mainstream flue gas hydrogen cyanide content.Specifically comprise following dual mode:
(1) with described adsorbent compressing tablet, sieve, choose 40-60 order particle, the acetate fibres that is scattered in cigarette filter rod is intrafascicular, makes binary compound filter candle, contains adsorbent 20~40mg in every filter stick; Preferred 35mg.
(2) with the adsorbent compressing tablet, sieve, choose and be not more than 200 order particles, be scattered in one of cigarette forming paper and groove paper or boths' surface, cigarette becomes cigarette, contains adsorbent 5~10mg in every cigarette; Preferred 8mg.
The specific surface of described mesoporous alumina carrier is 240~400m 2/ g, the aperture is 4.0~10nm; The mass content that described cupric oxide accounts for adsorbent is 5~15%; Be preferably 12%.
Preparation of adsorbent method concrete steps of the present invention are as follows:
1, mesoporous Al 2O 3The preparation of carrier
With shitosan, P123 (EO 20PO 70EO 20) and softex kw (CTABr) in one or more be structure directing agent, with aluminum nitrate, aluminium secondary butylate etc. is the aluminium source, has prepared the meso-porous alumina (Al that has than high-ratio surface and more surface alkalinty position by steps such as hydrolysis, isolated by filtration, drying and roastings 2O 3) carrier.
2, the adsorbent preparation method is:
(1) deposition-precipitation method preparation mixes copper source solution and mesoporous alumina carrier, stirs at normal temperatures, add precipitating reagent, transferring pH is 8~9, makes the copper ion in the copper source be converted into Kocide SD, spend deionised water, 100 ℃ of dryings, calcining forms at a certain temperature then; Preferred calcining heat is 250 ℃, and calcination time is 3 hours.
(2) immersion process for preparing mixes certain density copper nitrate solution and mesopore metal oxide carrier, with making its drying under the infrared lamp irradiation, forms in 4 hours 550 ℃ of calcinings.
3, application process of the present invention is:
(1) the adsorbent compressing tablet, sieve, choose 40-60 order particle and less than 200 order particles;
(2) 40-60 order absorbent particles is scattered in the diacetate fiber, makes the cigarette binary compound filter candle, contain adsorbent 20-40mg in every cigarette filter rod, the composite filter cigarette is become cigarette.
(3) will be scattered in cigarette forming paper and groove paper surface less than 200 order absorbent particles, and contain adsorbent 5-10mg in every cigarette, cigarette becomes cigarette.
The present mesoporous alumina carrier that also cupric oxide is not loaded to high-specific surface area is applied to reduce the hydrogen cyanide in the cigarette smoke.The used mesoporous alumina carrier of the present invention is different from traditional alumina support, is characterized in that carrier surface has abundant surface alkalinty position, high-ratio surface, and suitable duct and aperture help the metal oxide active component that load height is disperseed.Even when load capacity is low, also can obtain adsorption effect preferably.The prepared adsorbent of the present invention can significantly reduce hydrogen cyanide concentration characteristics in the cigarette mainstream flue gas, and removal efficiency can reach 10-50%; In minimizing the harm that the smoker causes is not influenced the cigarette mouthfeel simultaneously simultaneously.The present invention prepares simply, and easy to operate, cost is low.
The specific embodiment
Following examples are intended to illustrate the present invention rather than limitation of the invention further.
Embodiment 1
Carrier meso-Al 2O 3-a's is synthetic: 6.078g touches plate agent P123 (EO 20PO 70EO 20) and 0.060gLaCl 3Be dissolved in together in the 25ml sec-butyl alcohol, stir adding 5.4ml aluminium secondary butylate down.After stirring 1h under the room temperature, with mixed liquor (the 1.14ml H of water and sec-butyl alcohol 2O/10ml sec-butanol) slowly be added dropwise to wherein, mixture consists of 0.01La 3+: 1.0Al (Bu sO) 3: 0.10 EO 20PO 70EO 20: 3.0H 2O:15.5Bu sOH.Mixture continues down to stir 48 hours at 45 ℃, filters, and drying, in air atmosphere, 500 ℃ of calcining 6h obtain product, are labeled as meso-Al 2O 3-a.Measure meso-Al with low temperature N2 adsorption-desorption method 2O 3The specific surface of-a is 325m 2/ g, pore volume are 0.93cm 3/ g, average pore size is 7.5nm;
Getting 15ml concentration is that 0.1mol/L copper nitrate solution and 0.88g mesoporous alumina carrier mix, and with making its drying under the infrared lamp irradiation, forms in 4 hours 550 ℃ of calcinings.Be labeled as CuO/meso-Al 2O 3-a, sieves at compressing tablet, chooses 40-60 order particle and is scattered in the diacetate fiber, makes the cigarette binary compound filter candle, contains adsorbent 35mg in every cigarette filter rod, and the composite filter cigarette is become cigarette.Suction on Filtrona COA200 orthoscopic smoking machine (suction capacity 35ml/min), according to the hydrogen cyanide content in the YC/T 253-2008 mensuration cigarette smoke, contrast with the cigarette that does not add adsorbent, the result shows, compare with the contrast cigarette, the prepared adsorbent of the present invention can make hydrogen cyanide content decline 22.37% in the main flume.
Embodiment 2
The deposition-precipitation method preparation is with the meso-Al of preparation in the example 1 2O 3-a is a carrier, getting 15ml concentration is that 0.1mol/L copper nitrate solution and 0.88g mesoporous alumina carrier mix, stir at normal temperatures, adding concentration is the sodium hydroxide solution of 0.1mol/L, transferring pH is 8~9, makes the copper ion in the copper nitrate be converted into Kocide SD, spends deionised water 3 times, 100 ℃ of dryings, calcine 4h down at 250 ℃ then and form; With its compressing tablet, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 20.49% in the main flume.
Embodiment 3
With the CuO/meso-Al2O3-a adsorbent compressing tablet of preparation in the example 1, sieve, choose less than 200 order particles and be scattered in the groove paper, make cigarette, contain adsorbent 8mg in the cigarette, cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 13.01% in the main flume.
Embodiment 4
With the CuO/meso-Al2O3-a adsorbent compressing tablet of preparation in the example 1, sieve, choose less than 200 order particles and be scattered in the regular-size cigarette forming paper, make cigarette, contain adsorbent 8mg in the cigarette, cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 10.92% in the main flume.
Embodiment 5
Carrier meso-Al 2O 3-b's is synthetic: (a) 0.8g NaOH is dissolved in 4ml H 2Among the O, join in the 80ml triethanolamine, 120 ℃ down heating 5min under agitation the 21.8ml aluminium secondary butylate is added dropwise to wherein to remove water wherein, be heated to 150 ℃ and kept 10 minutes, this is a solution one; (b) under 60 ℃, 14.56g softex kw (CTABr) is dissolved in the 240ml water, this is a solution two; (c) keep 60 ℃ of constant temperature, under vigorous stirring, solution one is slowly joined in the solution two ageing 72h.Filter, use the absolute ethanol washing secondary, 30 ℃ of dryings, 500 ℃ of calcining 5h obtain product in the air atmosphere, are labeled as meso-Al 2O 3-b.Use low temperature N 2The adsorption-desorption method is measured meso-Al 2O 3The specific surface of-b is 302m 2/ g, pore volume are 0.78cm 3/ g, average pore size is 7.2nm; The preparation of employing deposition-precipitation method, getting 15ml concentration is that 0.1mol/L copper nitrate solution and 0.88g mesoporous alumina carrier mix, stir at normal temperatures, adding concentration is the sodium hydroxide solution of 0.1mol/L, transferring pH is 8~9, makes the copper ion in the copper nitrate be converted into Kocide SD, spends deionised water 3 times, 100 ℃ of dryings, calcine 4h down at 250 ℃ then and form; With its compressing tablet, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 31.28% in the main flume.
Embodiment 6
With the CuO/meso-Al2O3-b adsorbent compressing tablet of preparation among the embodiment 5, sieve, choose less than 200 order particles and be scattered in the groove paper, make cigarette, contain adsorbent 10mg in the cigarette, cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 17.70% in the main flume.
Embodiment 7
With the CuO/meso-Al2O3-b adsorbent compressing tablet of preparation among the embodiment 5, sieve, choose less than 200 order particles and be scattered in the groove paper, make cigarette, contain adsorbent 5mg in the cigarette, cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 10.62% in the main flume.
Embodiment 8
Carrier meso-Al 2O 3-c's is synthetic: with 4.60g Al (NO 3) 39H 2O be dissolved in 20ml go dried up in, then this solution is slowly joined the 50ml CH that contains the 1.50g shitosan 3In the COOH solution (5%V/V), under vigorous stirring, kept one hour.And then this solution slowly is added in 800ml (50%V/V) ammonia spirit, under vigorous stirring, kept one hour.Filter normal temperature dry 72 hours down then.550 ℃ of calcinings obtained product in 1.5 hours in the air atmosphere, were labeled as meso-Al 2O 3-c.Use low temperature N 2The adsorption-desorption method is measured meso-Al 2O 3The specific surface of-c is 271m 2/ g, pore volume are 0.48cm 3/ g, average pore size is 4.9nm; Prepare adsorbent CuO/meso-Al according to deposition-precipitation method among the embodiment 2 2O 3-c, sieves at compressing tablet, chooses 40-60 order particle and is scattered in the diacetate fiber, makes the cigarette binary compound filter candle, contains adsorbent 35mg in every cigarette filter rod, and the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 44.79% in the main flume.
Embodiment 9
CuO/meso-Al with preparation among the embodiment 8 2O 3-c compressing tablet, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 40mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 48.11% in the main flume.
Embodiment 10
CuO/meso-Al with preparation among the embodiment 8 2O 3-c compressing tablet, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 30mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 35.74% in the main flume.
Embodiment 11
CuO/meso-Al with preparation among the embodiment 8 2O 3-c compressing tablet, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 20mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 19.35% in the main flume.
Embodiment 12
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change the copper source into copper sulphate, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 39.86% in the main flume.
Embodiment 13
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change the copper source into copper chloride, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 45.90% in the main flume.
Embodiment 14
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change the copper source into copper citrate, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 37.46% in the main flume.
Embodiment 15
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change precipitating reagent into ammoniacal liquor, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 46.37% in the main flume.
Embodiment 16
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change precipitating reagent into sodium carbonate, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 35.94% in the main flume.
Embodiment 17
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change calcination time into 4 hours, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 45.09% in the main flume.
Embodiment 18
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change calcination time into 2 hours,, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choosing 40-60 order particle is scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 30.53% in the main flume.
Embodiment 19
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change calcining heat into 200 ℃, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 29.36% in the main flume.
Embodiment 20
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change calcining heat into 300 ℃, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 32.00% in the main flume.
Embodiment 21
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change the consumption of copper nitrate solution into 62.5ml by 100ml, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 22.40% in the main flume.
Embodiment 22
With meso-Al among the embodiment 8 2O 3-c is a carrier, adopt the method for embodiment 2, change the consumption of copper nitrate solution into 187.5ml by 100ml, other conditions are constant, the adsorbent compressing tablet that is prepared into, sieve, choose 40-60 order particle and be scattered in the diacetate fiber, make the cigarette binary compound filter candle, contain adsorbent 35mg in every cigarette filter rod, the composite filter cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of the present invention can make hydrogen cyanide content decline 43.51% in the main flume.
Comparative Examples 1
With common γ-Al 2O 3(specific surface is 153m 2/ g) be carrier, adopt the method for embodiment 2, the adsorbent compressing tablet, sieve, choose less than 200 order particles and be scattered in the groove paper, make cigarette, contain adsorbent 5mg in the cigarette, cigarette is become cigarette.Press the hydrogen cyanide content in the method mensuration cigarette mainstream flue gas in the embodiment 1, contrast with the cigarette that does not add adsorbent, the result shows, compares with the contrast cigarette, and the prepared adsorbent of this Comparative Examples can make hydrogen cyanide content decline 5.06% in the main flume.

Claims (12)

1. an adsorbent that reduces hydrogen cyanide content in the cigarette mainstream flue gas is characterized in that, described adsorbent is that load has cupric oxide on mesoporous alumina carrier.
2. a kind of adsorbent that reduces hydrogen cyanide content in the cigarette mainstream flue gas according to claim 1 is characterized in that the specific surface of described mesoporous alumina carrier is 240~400m 2/ g, the aperture is 4.0~10nm.
3. a kind of adsorbent that reduces hydrogen cyanide content in the cigarette mainstream flue gas according to claim 1 and 2 is characterized in that, the mass content that described cupric oxide accounts for adsorbent is 5~15%.
4. a kind of adsorbent that reduces hydrogen cyanide content in the cigarette mainstream flue gas according to claim 3 is characterized in that, the mass content that described cupric oxide accounts for adsorbent is 12%.
5. an application process that reduces the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas is characterized in that, being has the adsorbent of cupric oxide to add in the cigarette load on mesoporous alumina carrier, is used for reducing cigarette mainstream flue gas hydrogen cyanide content.
6. a kind of application process that reduces the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas according to claim 5, it is characterized in that, with described adsorbent compressing tablet, sieve, choose 40-60 order particle, the acetate fibres that is scattered in cigarette filter rod is intrafascicular, make binary compound filter candle, contain adsorbent 20~40mg in every filter stick.
7. according to claim 5 or 6 described a kind of application processes that reduce the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas, it is characterized in that, contain adsorbent 35mg in every filter stick.
8. a kind of application process that reduces the adsorbent of hydrogen cyanide content in the cigarette smoke according to claim 5, it is characterized in that, with the adsorbent compressing tablet, sieve, choose and be not more than 200 order particles, be scattered in one of cigarette forming paper and groove paper or boths' surface, cigarette becomes cigarette, contains adsorbent 5~10mg in every cigarette.
9. according to claim 5 or 8 described a kind of application processes that reduce the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas, it is characterized in that, contain adsorbent 8mg in every cigarette.
10. a kind of application process that reduces the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas according to claim 5 is characterized in that the specific surface of described mesoporous alumina carrier is 240~400m 2/ g, the aperture is 4.0~10nm.
11., it is characterized in that the mass content that described cupric oxide accounts for adsorbent is 5~15% according to claim 5 or 10 described a kind of application processes that reduce the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas.
12. a kind of application process that reduces the adsorbent of hydrogen cyanide content in the cigarette mainstream flue gas according to claim 11 is characterized in that, the mass content that described cupric oxide accounts for adsorbent is 12%.
CN 201010528605 2010-11-02 2010-11-02 Absorbent for reducing hydrocyanic acid content of main stream smoke of cigarettes and use thereof Pending CN101999756A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102578700A (en) * 2012-02-21 2012-07-18 河南省科学院同位素研究所有限责任公司 Method for reducing hydrocyanic acid in mainstream smoke of cigarette
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