CN101804356A - Catalyst for reducing the content of CO in cigarette smoke and preparation and application thereof - Google Patents
Catalyst for reducing the content of CO in cigarette smoke and preparation and application thereof Download PDFInfo
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- CN101804356A CN101804356A CN201010119345A CN201010119345A CN101804356A CN 101804356 A CN101804356 A CN 101804356A CN 201010119345 A CN201010119345 A CN 201010119345A CN 201010119345 A CN201010119345 A CN 201010119345A CN 101804356 A CN101804356 A CN 101804356A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a catalyst for the oxidation of CO under normal temperature, in particular to a catalyst for reducing the content of CO in cigarette smoke and the preparation and the application thereof. The catalyst for reducing the content of CO in cigarette smoke comprises the following components in mass percentage: 0.5 to 3% of PdCl, 5 to 15% of CuCl2, and 65 to 95% of active carbon carrier. The catalyst of the invention has simple production technology, good storage stability and lower production cost. A catalyst suitable for the use in cigarette is provided by using the catalysis method, wherein the carbon monoxide is oxidized to carbon dioxide. The invention provides a catalyst suitable for the use in cigarette, and the produced composite filter tip can reduce the content of carbon monoxide in the main smoke stream of cigarette by 5 to 25%.
Description
Technical field
The present invention relates to a kind of carbon monoxide room-temperature oxidation catalyst, relate in particular to a kind of Catalysts and its preparation method and application that is used for reducing the cigarette smoke carbon monoxide content.
Background technology
Carbon monoxide (CO) produces, mainly is present in a kind of harmful typical material in the cigarette smoke gas phase in the cigarette smoking process.Cigarette is in combustion process, because reactions such as the thermal decomposition of tobacco ingredient and burning can generate a large amount of CO.The chemical affinity of CO and human body hemoglobin is about 240～250 times of oxygen, and the CO and the hemoglobin that suck health can form very stable carbonyl haemoglobin, cause tissue hypoxia disease, can bring out arrhythmia cordis, hypertension even death.Along with the raising of China's adding " the international Framework Convention on Tobacco Control " and living standards of the people, the consumer is also more and more stronger to the security and the environmental consciousness of smoking.The CO content that reduces in the cigarette smoke has become the research focus.
The main method that is used for reducing cigarette smoke CO content has:
1, ventilation filter tip.Chinese patent CN1128638A discloses the method that a porous device is installed between common filter tip and pipe tobacco, compare with the cigarette that common filter tip is housed, and novel filter tip can make CO content reduction by 20～30% in the cigarette smoke.
2, biotechnology and biomaterial.World patent WO2001/093707 discloses a kind of biological adsorption agent, adds the content that can effectively reduce CO in the flue gas in the filter tip to.U.S. Pat 5909736 and US4414988 disclose with hemoglobinated biological filter tip can effectively remove harmful components in the cigarette smoke, comprises NO, free radical, CO and aldehyde material etc.Chinese patent CN1133550A discloses a kind of active carbon compound bio filter tip that floods hemoglobin, can effectively remove the NO in the cigarette smoke
xWith CO etc.Chinese patent CN1252245A discloses a kind of biological tobacco tar reducing agent to make as primary raw material with the similar metalloporphyrin of biology enzyme structure, can reduce CO and NO content.Though it is better that these biomaterials are eliminated the effect of CO, how keeping its biologically active in the production of cigarettes process is a difficult problem.
3, in cigarette filter, add adsorbent.U.S. Pat 7240678 discloses a kind of ion exchange resin, adds the content that can effectively reduce CO in the flue gas in the filter tip to.Korean Patent KR20010070762 discloses the silver-colored granule adsorbent that mandruka absorption Ag is prepared from, and adds content of harmful such as can effectively reducing in the flue gas CO in the filter tip to.World patent WO2002/043514 discloses and filled the CO adsorbent on filter tip, and punches on the filter tip wrapping paper of filling adsorbent, to reduce CO content in smoke.Chinese patent CN101199363A discloses a kind of additive and preparation method who reduces oxious component in the flue gas, jasmine tea, Radix Glycyrrhizae, beta-schardinger dextrin-, polyethylene glycol, honey, lactic acid and triacetyl glycerine etc. are processed into cigarette filter-tip additive agent, then by the requirement of cigarette filter production and processing technology, be sprayed on the fine mouth rod of cigarette third fibre or vinegar equably and roll into cigarette and prop up, can make CO content reduction by 2.5～10% in the cigarette smoke.Chinese patent CN1849949A discloses and adopted selective absorption defibre shape material in cigarette filter, when making the cigarette filter cigarette constant in suction prophyll assembly side, the material that CO, nicotine, nitroso and free radical etc. are harmful to the mankind can reduce more than 40%.Chinese patent CN2877332A discloses a kind of two-period form carbon-containing wrap paper filter stick that reduces content of CO in smoke of cigarettes, is made up of common acetate fiber and two-period form forming paper parcel, can reduce in the flue gas 10% CO content.
4, catalytic oxidation is considered to a kind of most economical method that reduces CO content in the cigarette smoke effectively.Catalyst can add to makes composite filter tip in the filter tip, when main flume passes through filter tip, by catalyst CO is changed into CO
2, reduce the CO amount that enters in smoker's mouth; Also catalyst can be added in pipe tobacco or the cigarette paper, when cigarette combustion,, reduce because the CO amount that imperfect combustion produces by the catalytic action raising efficiency of combustion of catalyst.According to the catalyst activity component, can be divided into noble metal catalyst and non-precious metal catalyst two big classes.
Noble metal catalyst is an active component with Au, Pd, Pt or Ag etc. mainly, for example world patent WO2007/096785 discloses synthetic noble metal/non-noble metal oxide catalyst such as the method that adopts deposition-precipitation, co-precipitation and original position heating, with the 2wt.%Au-TiO of 50～350mg50 order size
2Catalyst adds in the filter tip, can reduce in the main flume by 10～50% CO.World patent WO2006/046145 and WO2005/089937 disclose and have adopted the deposition-precipitation method to prepare Au/CeO
2Catalyst perhaps reduces processing (world patent WO2005/089936) to catalyst, joins to cut filler, in cigarette wrapper or the filter tip, can effectively reduce the content of CO in the flue gas.World patent WO2004/110190, WO2004/110186, WO2005/118133 and U.S. Pat 7243658 disclose Au/SiO
2(active carbon, TiO
2, Fe
2O
3, CuO, ZnO, ZnAlO
xOr CuZnO
x) catalyst, add to cut filler or cigarette wrapper in, can reduce in the flue gas 10% CO amount at least.Chinese patent CN1460548A discloses under a kind of normal temperature the catalyst (Au (a) Pt (b) Pd (c) Ni (d) Co (e) Fe (f) Cu (g) Zn (h) Ti (i) O (j)/carrier) that reduces CO content in the cigarette smoke, can reduce in the main flume 20～45% CO burst size.Chinese patent CN1921936A discloses a kind of Au catalyst that loads on the reducible oxide-based composition carrier, can be used for handling the CO of tobacco smoke or air after this catalyst is handled through reduction.World patent WO2005/013733 discloses catalyst such as palladium oxide or platinum oxide has been added in cigarette wrapping paper or the pipe tobacco, can reduce in the flue gas 10% CO at least.World patent WO2006/046153 and U.S. Pat 2006254605 disclose the Pd/CeO that adopts the preparation of laser vaporization device control concentration method
2(SiO
2And Al
2O
3) catalyst, join and cut filler, in cigarette wrapper or the filter tip, when being lower than 75 ℃, can reduce in the flue gas 5% CO at least.World patent WO2005/122805 discloses the Ag/CeO that adopts the precipitation method, thermal decomposition or the preparation of laser vaporization device control concentration method
2Catalyst joins and cuts filler, in cigarette wrapper or the filter tip, can reduce in the flue gas 25% CO amount.Chinese patent CN2803014A discloses a kind of copper palladium base modified active carbon fiber composite filter-tip, can reduce in the cigarette smoke 15～30% CO amount.Chinese patent CN1692848A discloses a kind of tobacco smoke filter element that is used for and has fallen harmful modified active carbon fiber and preparation method thereof (TiO
2-Pd-Cu based active carbon fiber), modified active carbon fiber and acetate fiber or polypropylene fiber are made cigarette composite filter tip, can reduce in the cigarette smoke 10～20% CO amount.People such as Lv Gongxuan (Chinese tobacco journal, 2003,9 (3): 18) adopt infusion process, coprecipitation and deposition-precipitation method to prepare the catalysis material of noble metals such as containing palladium, platinum or gold respectively, it wherein is the composite filter tip cigarette that catalysis material is made with the gold, can make CO content reduction by 13.5% in the cigarette mainstream flue gas, CO content can reduce by 26.9% behind the interpolation auxiliary agent; Adopt immersion process for preparing in addition the Pd-Ce/NaZSM-5 catalyst (the Chinese tobacco journal, 2007,13 (3): 11), the binary compound filter candle of making can make main flume CO burst size reduce by 22%.
Mixed oxide that non-precious metal catalyst is mainly formed with Fe, Cu, Ti, Ce or by transition metal etc. is an active component, especially oxides-containing iron.World patent WO2003/020058, WO2003/086112, WO2004/041008, WO2004/110184, WO2004/110188, WO2004/110189, WO2005/002370, WO2005/039326 and WO2005/039332 and U.S. Pat 7011096 and US7228862 disclose Fe
2O
3, FeOOH or TiOOH add in the cigarette wrapping paper, can reduce in the flue gas 15% CO amount at least.World patent WO2007/083245 discloses the Fe with the sealing of volatile capsule
2O
3Or the FeOOH catalyst, join and cut filler, in cigarette wrapper or the filter tip, can effectively reduce the content of CO in the flue gas.World patent WO2003/086115 and U.S. Pat 7168431 and US7017585 disclose Fe
2O
3Partial reduction forms Fe
3O
4, FeO, Fe and Fe
2O
3Mixture, add to then in the pipe tobacco, can effectively reduce CO content.U.S. Pat 6782892 and US6769437 disclose a kind of nanometer MnO
2And Fe
2O
3, composite oxide catalysts such as FeOOH, this catalyst still places cigarette forming paper no matter be to join in the cigarette shreds, all can significantly reduce the CO amount in the cigarette smoke.World patent WO2007/083195 discloses graphitic carbon and the oxide carried ferric oxide catalyst of partial reduction, joins to cut filler, in cigarette wrapper or the filter tip, can effectively reduce the content of CO in the flue gas.U.S. Pat 7152609 discloses Al
2O
3, SiO
2, TiO
2Or CeO
2The Fe of even load
2O
3Or the FeOOH catalyst, add to and can reduce in the flue gas 10% CO amount in cutting filler at least.U.S. Pat 7165553 discloses porous silicon-aluminum sol load ferric oxide catalyst, adds to cut filler, in cigarette wrapper or the filter tip, can reduce in the flue gas 25% CO amount.World patent WO2004/052520 and WO2005/039331 and U.S. Pat 6857431 and US2005263162 disclose the CuO-CeO that adopts the fusion method preparation
2, CuO-TiO
2And CuO-Fe
2O
3Deng mixed oxide catalyst, join and cut filler, in cigarette wrapper or the filter tip, can reduce in the flue gas 10% CO amount at least.U.S. Pat 4182348 discloses Ba
2LaRuO
6The perovskite composite oxides catalyst is added on the content that can make CO in the flue gas in the filter stick and reduces about 40%.World patent WO2007/116751 discloses a kind of catalyst of being made up of cupric oxide and manganese oxide, adds it to can effectively reduce in the filter tip in the main flume CO content.Chinese patent CN1729877A discloses micron order or nanoscale CeO
2Powder is as auxiliary agent, adds in the tobacco in the mode of mechanical mixture, sprinkling or immersion, utilizes CeO
2Store the efficiency of combustion that the oxygen function improves tobacco, reduce the content of harmful such as CO in the cigarette smoke effectively, the puff number of not obvious change cigarette and inhale flavor.Chinese patent CN101116530A and CN101116531A disclose the additive of loading metal-salt on the inorfil, form with thin slice adds in the cigarette shreds, slaine can be converted into corresponding metal oxide in the cigarette burning process, as combustion improver, can make the content of CO in the flue gas reduce by 15%.Chinese patent CN1951240A and CN101015391A disclose a kind of compound additive and application thereof that reduces content of CO in smoke of cigarettes, and described compound additive mainly is made up of 1～5% tobacco extract, 20～95% alkali metal salts (phosphate, carbonate, sulfate, nitrate etc.), 0～75% metal hydroxides (iron hydroxide, magnesium hydroxide, Kocide SD).This compound additive is applicable to and adds in the pipe tobacco (consumption be pipe tobacco weight 0.5～2%), perhaps in existing cigarette paper production process, add (consumption be finished cigarettes paper weight 0.5～20%), CO amount in can the selectivity reducing cigarette main flume, the reduction amplitude reaches 15～25%.
Though done number of research projects aspect the CO content that reduces with catalytic oxidation in the cigarette smoke, existing achievement in research also has the following disadvantages: (1) catalyst cost is higher, and storage stability is relatively poor; (2) the CO catalytic oxidation ability is relatively poor under the normal temperature condition.So it is just imperative that research has the lower efficient CO normal temperature oxidation catalyst of better storage stability and production cost.
Summary of the invention
In order to solve the technical problem that above-mentioned catalyst exists, one object of the present invention is to provide a kind of catalyst that can effectively reduce CO content in the cigarette smoke, and this catalyst has better storage stability and than low production cost.Second purpose of the present invention provides above-mentioned Preparation of catalysts method.The 3rd purpose of the present invention provides above-mentioned Application of Catalyst.
In order to realize first above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of catalyst that is used for reducing cigarette smoke CO content, this catalyst comprise following component: PdCl by mass percentage
20.5%～3%, CuCl
25%～15%, absorbent charcoal carrier 65%～95%.
As preferably, this catalyst comprises following component: PdCl by mass percentage
20.8%～2%, CuCl
28%～12%, absorbent charcoal carrier 70%～90%.
As further improvement, this catalyst also comprises 0～15% auxiliary agent, and the adding of auxiliary agent helps to improve the performance of catalyst.As preferably, the content of described auxiliary agent is 1%～12%.
As preferably, described auxiliary agent is selected from one or more the mixture in Fe, Mn, Co, Zr, Ni, the Ce nitrate.Most preferred auxiliary agent is Ce (NO
3)
3
As further improvement, above-mentioned absorbent charcoal carrier is selected from coconut husk charcoal, carbo lignius, bamboo charcoal, cigarette with active carbon or super-activated carbon.Most preferred absorbent charcoal carrier is that specific area surpasses 1500m
2The super-activated carbon of/g.
As further improvement, the granularity of above-mentioned absorbent charcoal carrier is 80～100 orders.
Catalysis Principles of the present invention is as follows:
Reaction 1, CO+H
2O+PdCl
2=CO
2+ 2HCl+Pd
Reaction 2, Pd+2CuCl
2=PdCl
2+ 2CuCl
Reaction 3,2CuCl+2HCl+1/2O
2=2CuCl
2+ H
2O
Wherein, reaction 1 is main reaction, Pd
2+Play catalytic action, the Cu ion transforms back into Pd to the Pd after the reduction by reaction 2 and 3 then
2+, the synergy of a co-catalyst.
In order to realize second above-mentioned purpose, the present invention has adopted following technical scheme:
A kind ofly prepare the above-mentioned method that is used for reducing the catalyst of cigarette smoke CO content, this method comprises the steps:
1. absorbent charcoal carrier was flooded in alcoholic solution 1～5 hour, room temperature vacuum drying 12～24 hours is stand-by then;
2. adopt equi-volume impregnating, palladium bichloride and copper chloride are mixed with corresponding ethanolic solution, the absorbent charcoal carrier that 1. step is obtained joins and flooded in this solution 1～5 hour then, and room temperature vacuum drying 24～48 hours obtains catalyst;
Perhaps, adopt equi-volume impregnating, the absorbent charcoal carrier that 1. step is obtained flooded 1～5 hour in the aqueous solution of used additives preparation, room temperature vacuum drying 24～48 hours, continue to use equi-volume impregnating then, the absorbent charcoal carrier of load auxiliary agent was flooded 1～5 hour in the ethanolic solution that palladium bichloride and copper chloride are made into, and room temperature vacuum drying 24～48 hours obtains catalyst.
As further improvement, the 1. described alcohol of above-mentioned step is ethanol, isopropyl alcohol or n-butanol, and it is 5～15ml that the every 1g of described absorbent charcoal carrier floods employed alcoholic solution.
In order to realize the 3rd above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of cigarette that reduces CO content in the cigarette smoke adds the described catalyst of above-mentioned each technical scheme in the filter tip filter core of cigarette.The structure of cigarette is identical with prior art, only adds catalyst in the filter tip filter core and get final product in cigarette manufacturing process.
A kind of cigarette cigarette holder that is used for reducing cigarette smoke CO content adds the described catalyst of above-mentioned each technical scheme in the filtering material of cigarette cigarette holder.
The present invention is owing to adopted above-mentioned technical scheme, this Catalyst Production technology is simple, have storage stability and lower production cost preferably, utilize catalysis process carbon monoxide to be oxidized to the principle of carbon dioxide, a kind of suitable cigarette catalyst for application is provided, and the composite filter tip of making can reduce in the cigarette mainstream flue gas 5～25% carbon monoxide content.
The specific embodiment
Embodiment 1
1 gram, 80～100 purpose absorbent charcoal carriers were flooded 1 hour in 5 milliliters of ethanolic solutions, and room temperature vacuum drying 24 hours is stand-by then.Adopt equi-volume impregnating then, 0.01g palladium bichloride and 0.12g copper chloride are mixed with corresponding ethanolic solution, and absorbent charcoal carrier was joined in this solution dipping 1 hour, room temperature vacuum drying 24 hours obtains catalyst.Adopting cocoanut active charcoal, wood activated charcoal, cigarette is that the catalyst of carrier is labeled as Coconut AC-1, Wood AC-1, CigaretteAC-1, Super AC-1 respectively with active carbon or super-activated carbon.
Press close to the pipe tobacco section at filter tip and one section filter post (15mm length) that adds the 30mg catalyst is set makes composite filter tip, and make cigarette.Sample treatment and suction environment are according to standard GB/T16447-2004 " atmospheric environment that tobacco and tobacco product are regulated and tested ", and the smoking machine condition is according to standard GB/T16450-2004 " conventional analysis defines and standard conditions with smoking machine ".(the sharp group of proboscis, CO content is that 13.8mg/ props up) compares with the contrast cigarette, adopts this composite filter tip can significantly reduce the content of CO in the cigarette mainstream flue gas, and concrete outcome is as shown in the table:
| Catalyst | CO content (mg/ props up) | CO clearance (%) |
| The contrast cigarette | ??13.8 | ??- |
| ??Coconut?AC-1 | ??12.8 | ??7.2％ |
| ??Wood?AC-1 | ??12.5 | ??9.4％ |
| ??Cigarette?AC-1 | ??13.1 | ??5.1％ |
| ??Super?AC-1 | ??11.5 | ??16.7％ |
Embodiment 2
1 gram, 80～100 purpose cigarettes were flooded 1 hour in 5 milliliters of ethanolic solutions with absorbent charcoal carrier, and room temperature vacuum drying 24 hours is stand-by then.Adopt equi-volume impregnating then, 0.015g palladium bichloride and 0.18g copper chloride are mixed with corresponding ethanolic solution, and absorbent charcoal carrier was joined in this solution dipping 1 hour, room temperature vacuum drying 24 hours obtains catalyst.
The CO clearance method of testing of catalyst is identical with embodiment 1, and this catalyst is 8.0% to the CO clearance in the cigarette mainstream flue gas.
Embodiment 3
1 gram, 80～100 purpose absorbent charcoal carriers were flooded 1 hour in 5 milliliters of ethanolic solutions, and room temperature vacuum drying 24 hours is stand-by then.Adopt equi-volume impregnating then, 0.02g palladium bichloride and 0.18g copper chloride are mixed with corresponding ethanolic solution, and absorbent charcoal carrier was joined in this solution dipping 1 hour, room temperature vacuum drying 24 hours obtains catalyst.Adopting cocoanut active charcoal, wood activated charcoal, cigarette is that the catalyst of carrier is labeled as Coconut AC-2, Wood AC-2, CigaretteAC-2, Super AC-2 respectively with active carbon or super-activated carbon.
The CO clearance method of testing of catalyst is identical with embodiment 1, and above-mentioned catalyst is as shown in the table to the CO clearance in the cigarette mainstream flue gas:
| Catalyst | CO content (mg/ props up) | CO clearance (%) |
| The contrast cigarette | ??13.8 | ??- |
| Catalyst | CO content (mg/ props up) | CO clearance (%) |
| ??Coconut?AC-2 | ??12.2 | ??11.6％ |
| ??Wood?AC-2 | ??11.8 | ??14.5％ |
| ??Cigarette?AC-2 | ??12.5 | ??9.4％ |
| ??Super?AC-2 | ??11.0 | ??20.3％ |
Embodiment 4
Adopt the equi-volume impregnating preparation of two steps.1 gram, 80～100 purpose absorbent charcoal carriers were flooded 1 hour in 5 milliliters of ethanolic solutions, and room temperature vacuum drying 24 hours is stand-by then.Adopt equi-volume impregnating, active carbon was flooded 1 hour room temperature vacuum drying 24 hours in the aqueous solution of 0.27g cerous nitrate preparation.Continue use equi-volume impregnating then, the absorbent charcoal carrier of load cerous nitrate was flooded 1 hour in the ethanolic solution that 0.025g palladium bichloride and 0.23g copper chloride are made into, room temperature vacuum drying 24 hours obtains catalyst.Adopting cocoanut active charcoal, wood activated charcoal, cigarette is that the catalyst of carrier is labeled as Coconut AC-3, Wood AC-3, Cigarette AC-3, Super AC-3 respectively with active carbon or super-activated carbon.
The CO clearance method of testing of catalyst is identical with embodiment 1, and above-mentioned catalyst is as shown in the table to the CO clearance in the cigarette mainstream flue gas:
| Catalyst | CO content (mg/ props up) | CO clearance (%) |
| The contrast cigarette | ??13.8 | ??- |
| ??Coconut?AC-3 | ??11.8 | ??14.5％ |
| ??Wood?AC-3 | ??11.4 | ??17.4％ |
| ??Cigarette?AC-3 | ??12.0 | ??13.0％ |
| ??Super?AC-3 | ??10.4 | ??24.6％ |
Embodiment 5
Adopt the equi-volume impregnating preparation of two steps.1 gram, 80～100 purpose super-activated carbon carriers were flooded 1 hour in 5 milliliters of ethanolic solutions, and room temperature vacuum drying 24 hours is stand-by then.Adopt equi-volume impregnating, active carbon was flooded 1 hour room temperature vacuum drying 24 hours in the aqueous solution of 0.27g cerous nitrate preparation.Continue use equi-volume impregnating then, the absorbent charcoal carrier of load cerous nitrate was flooded 1 hour in the ethanolic solution that 0.025g palladium bichloride and 0.23g copper chloride are made into, room temperature vacuum drying 24 hours obtains catalyst.Then catalyst is at room temperature opened wide and placed 3 months, and catalyst is carried out the test of CO clearance.Method of testing is identical with embodiment 1, and the catalyst after placing through 3 months is 23.8% to the CO clearance in the cigarette mainstream flue gas.
Claims (10)
1. a catalyst that is used for reducing cigarette smoke CO content is characterized in that this catalyst by mass percentage, comprises following component:
PdCl
2????????0.5％～3％，
CuCl
2????????5％～15％，
Absorbent charcoal carrier 65%～95%.
2. a kind of catalyst that is used for reducing cigarette smoke CO content according to claim 1 is characterized in that this catalyst by mass percentage, comprises following component:
PdCl
2???????0.8％～2％，
CuCl
2???????8％～12％，
Absorbent charcoal carrier 70%～90%.
3. a kind of catalyst that is used for reducing cigarette smoke CO content according to claim 1 and 2, it is characterized in that: this catalyst also comprises 0～15% auxiliary agent.
4. a kind of catalyst that is used for reducing cigarette smoke CO content according to claim 3 is characterized in that: auxiliary agent is selected from one or more the mixture in Fe, Mn, Co, Zr, Ni, the Ce nitrate, and most preferred auxiliary agent is Ce (NO
3)
3
5. a kind of catalyst that is used for reducing cigarette smoke CO content according to claim 1 and 2, it is characterized in that: it is that specific area surpasses 1500m with active carbon or super-activated carbon, most preferred absorbent charcoal carrier that absorbent charcoal carrier is selected from coconut husk charcoal, carbo lignius, bamboo charcoal, cigarette
2The super-activated carbon of/g.
6. a kind of catalyst that is used for reducing cigarette smoke CO content according to claim 1 and 2 is characterized in that: the granularity of absorbent charcoal carrier is 80～100 orders.
7. one kind prepares the described method that is used for reducing the catalyst of cigarette smoke CO content of claim 1, it is characterized in that this method comprises the steps:
1. absorbent charcoal carrier was flooded in alcoholic solution 1～5 hour, room temperature vacuum drying 12～24 hours is stand-by then;
2. adopt equi-volume impregnating, palladium bichloride and copper chloride are mixed with corresponding ethanolic solution, the absorbent charcoal carrier that 1. step is obtained joins and flooded in this solution 1～5 hour then, and room temperature vacuum drying 24～48 hours obtains catalyst; Perhaps, adopt equi-volume impregnating, the absorbent charcoal carrier that 1. step is obtained flooded 1～5 hour in the aqueous solution of used additives preparation, room temperature vacuum drying 24～48 hours, continue to use equi-volume impregnating then, the absorbent charcoal carrier of load auxiliary agent was flooded 1～5 hour in the ethanolic solution that palladium bichloride and copper chloride are made into, and room temperature vacuum drying 24～48 hours obtains catalyst.
8. a kind of preparation according to claim 7 is used for reducing the method for the catalyst of cigarette smoke CO content, it is characterized in that: the 1. described alcohol of step is ethanol, isopropyl alcohol or n-butanol, and it is 5～15ml that the every 1g of described absorbent charcoal carrier floods employed alcoholic solution.
9. a cigarette that reduces CO content in the cigarette smoke is characterized in that: add catalyst as claimed in claim 1 or 2 in the filter tip filter core of cigarette.
10. a cigarette cigarette holder that is used for reducing cigarette smoke CO content is characterized in that: add catalyst as claimed in claim 1 or 2 in the filtering material of cigarette cigarette holder.
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|---|---|---|---|
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Cited By (5)
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|---|---|---|---|---|
| RU2453367C1 (en) * | 2010-12-27 | 2012-06-20 | Общество с ограниченной ответственностью "ОДИССЕЙ-А" | Method of producing porous granular catalyst |
| CN102499467A (en) * | 2011-11-04 | 2012-06-20 | 南通大学 | Additive for reducing quantity of carbon monoxide in smoke of cigarette and preparation method and application thereof |
| CN104907097A (en) * | 2014-03-10 | 2015-09-16 | 江苏瑞丰科技实业有限公司 | Room temperature efficient carbon monoxide removing catalysis material |
| CN111659414A (en) * | 2019-03-05 | 2020-09-15 | 绍兴胜迹新材料科技有限公司 | Preparation method of nano composite noble metal catalyst using active carbon as carrier |
| CN114289041A (en) * | 2021-12-09 | 2022-04-08 | 安徽欣创节能环保科技股份有限公司 | Preparation process of improved sulfur-resistant sintering flue gas decarburization catalyst |
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| WO2005118133A2 (en) * | 2004-05-28 | 2005-12-15 | British American Tobacco (Investments) Limited | Smoking articles including gold catalyst |
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