CN106867673A - The apparatus and method that essential oil of tobaccos is extracted in a kind of superheated vapour distillation - Google Patents
The apparatus and method that essential oil of tobaccos is extracted in a kind of superheated vapour distillation Download PDFInfo
- Publication number
- CN106867673A CN106867673A CN201710014535.8A CN201710014535A CN106867673A CN 106867673 A CN106867673 A CN 106867673A CN 201710014535 A CN201710014535 A CN 201710014535A CN 106867673 A CN106867673 A CN 106867673A
- Authority
- CN
- China
- Prior art keywords
- superheated vapour
- oil
- water
- tobaccos
- essential oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/025—Recovery by solvent extraction
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/02—Recovery or refining of essential oils from raw materials
- C11B9/027—Recovery of volatiles by distillation or stripping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D2011/007—Extraction using a solvent in the gas phase
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fats And Perfumes (AREA)
Abstract
Essential oil of tobaccos device is extracted the invention discloses a kind of distillation of superheated vapour, including：Alembic (9), its outer layer has heater (10), its upper port exports the bottom that (8) connect condenser pipe (1) by retort gas, and its lower port connects superheated vapour generating means (12) upper port by steam outlet (11)；Oil water separator (5), its upper port connects condenser pipe (1) lower port by condensing fluid outlet (3), its middle and upper part connects the top of the superheated vapour generating means (12) by moisture outlet (4), and bottom has oil to export (6).The invention also discloses the method that superheated vapour distilling apparatus is used to extract essential oil of tobaccos.
Description
Technical field
The invention belongs to technical field of tobacco chemistry, and in particular to the dress of essential oil of tobaccos is extracted in a kind of superheated vapour distillation
Put and method.
Background technology
Extracting effective ingredient of volatile component of plant etc. has many methods, such as solvent extraction, supercritical fluid extraction
Follow the example of, subcritical abstraction method, steam distillation etc..In these methods, overcritical, subcritical abstraction method can be entered at low temperature
OK, volatile component is not destroyed.But the equipment of the method is complicated, extraction cost is higher.The steam distillation in numerous methods
Method is simple to operate, and effectively, cost is relatively low, safe operation, is that plants essential oil extracts most common method.
But steam distillation there is also defect in terms of some：On the one hand be in still-process water vapour in alembic
Middle meeting partial condensation is got off, and reduces water vapour amount, reduces distilling effect；The temperature of another aspect saturated vapor is 100
DEG C, vapo(u)rizing temperature is too low to allow some semi-volatility components can not all to steam and cause the low yield of essential oil.Superheated vapour
A kind of new steam distillation method got up for new development in recent years is distilled, when steam is in superheat state, the heat of its steam
Enthalpy is much higher than saturation state, and can be prevented effectively from steam with superheated steam distillation is condensed in alembic, and vapo(u)rizing temperature can be carried
Height is no longer limited to more than 100 DEG C by water boiling temperature；For hot metastable sample, superheated steam distillation can be compared with
The yield of essential oil is significantly increased.
The content of the invention
The invention discloses the apparatus and method that essential oil of tobaccos is extracted in a kind of distillation of superheated vapour, and conventional method phase
Than the essential oil output capacity of the inventive method is significantly improved.
On the one hand the purpose of the present invention is to provide the device that essential oil of tobaccos is extracted in a kind of superheated vapour distillation；On the other hand
It is to provide the method extracted using the hydrodistillation device in essential oil of tobaccos.
First aspect present invention is related to a kind of superheated vapour extraction element, and it includes：
Alembic 9, its outer layer has heater 10, and its upper port exports 8 and connects under condenser pipe 1 by retort gas
Portion, its lower port connects the upper port of superheated vapour generating means 12 by steam outlet 11；
Oil water separator 5, its upper port connects the lower port of condenser pipe 1 by condensing fluid outlet 3, and its middle and upper part passes through water
Sub-export 4 connects the top of the steam generator 12, and bottom has oil to export 6.
Preferably, the outer layer heater 10 of the extractor 9 is heating jacket.
Preferably, the outer layer of the condenser pipe 1 is condensation water interlayer, and condensed water water inlet 2, top is arranged at condensation water interlayer bottom
There is condensed water delivery port 7.
Preferably, the volume of the extractor 9 is 50~100L.
Second aspect present invention is related to method of the described superheated vapour distilling apparatus for preparing essential oil of tobaccos, including
Following steps：Cigarette sample is infiltrated with citric acid, alembic (9) heating, is passed through superheated vapour distillation, fraction condensation, profit point
From collection essential oil of tobaccos step.
Preferably, the concentration of the citric acid is 5wt%.
Extraction element experimental procedure of the invention is：The tobacco sample for taking 20kg is infiltrated with 5% citric acid solution, by sample
Product thing is put into alembic, and 150 DEG C of superheated steams of temperature are first passed through in heating jacket, allows pot temperature to be increased to 100 DEG C
More than, then allow superheated steam to enter alembic, steam flow is 10-25kg/h.Carried secretly the superheated steam of essential oil of tobaccos from
Steam (vapor) outlet is derived, and by condensing tube condensation, condensate enters oil water separator, and (upper strata is essence after being separated through oil water separator
Oil, lower floor is water), water mutually exports through water and reenters steam generator and gasify again, allows moisture to be recycled,
Avoid carrying a small amount of essential oil loss secretly in water phase simultaneously；1~3h of distillation time, after distillation terminates, from oil water separator bottom
Oil outlet is released oil component and is essential oil of tobaccos.
The essential oil of tobaccos glyceryl triacetate that the present invention is extracted is made into the solution of 0.5-3%, the solution is pressed into tow
The 7~8% of weight are added in cigarette filter rod；The filter tip that with the addition of the additive is rolled into cigarette again.To with the addition of this hair
The cigarette sample of bright essential oil carries out sensory evaluating smoking, is compared with control, and the aroma quality and perfume quantity of cigarette smoke get a promotion, miscellaneous
Gas, excitant are substantially reduced, and this fragrant style and features of tobacco are more prominent.
Compared with prior art, its advantage is the present invention：
(1) present invention is distilled using superheated vapour, and when steam is in superheat state, the heat enthalpy value of its steam is much higher than
Saturation state, can be prevented effectively from steam and be condensed in alembic, and vapo(u)rizing temperature can bring up to more than 100 DEG C, no longer by water
The limitation of boiling temperature；For hot metastable tobacco sample, superheated steam distillation can by a relatively large margin improve essential oil of tobaccos
Yield.
(2) in currently preferred experimental program, the cigarette sample of distillation is infiltrated with 5% citric acid solution, can avoid cigarette
Careless alkaloid is largely steamed with water vapour, to be eliminated and need to remove tobacco with acid back extraction when conventional steam distillation prepares essential oil of tobaccos
The step of alkaloid.
(3) essential oil of tobaccos of the invention is added by triacetyl glycerine, it is contemplated that triacetyl glycerine is filtered for cigarette
The most frequently used plasticizer in mouth shaping, in cigarette filter forming process, the compounds of this invention is added by triacetyl glycerine
To in filter tip, easily realized in technique, and do not increase the additional step in production process.
(4) to carrying out sensory evaluating smoking to the cigarette sample that with the addition of essential oil of the present invention, compared with control, the perfume (or spice) of cigarette smoke
Makings and perfume quantity are got a promotion, and miscellaneous gas, excitant are substantially reduced, and this fragrant style and features of tobacco are more prominent.
Brief description of the drawings
Fig. 1 is the schematic device that essential oil of tobaccos is extracted in a kind of superheated vapour distillation of the invention.
Reference is：1- condenser pipes, 2- condensed water water inlets, 3- condensation fluid outlets, 4- water is mutually exported, 5- profits point
From device, the outlet of 6- oil phases, 7- condensed water delivery ports, the outlet of 8- retort gas, 9- alembics, 10- chuck heaters, 11- water
Steam (vapor) outlet, 12- superheated vapour generating means.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, but the present invention is subject to never in any form
Limitation, based on present invention teach that any conversion or replacement made, belong to protection scope of the present invention.
Embodiment 1
The device of essential oil of tobaccos is extracted in superheated vapour distillation as shown in Figure 1, and it includes extractor 9, its outer layer have plus
Thermal 10, its upper port exports 8 bottoms for connecting condenser pipe 1 by retort gas, and its lower port passes through steam outlet 11
The upper port of connection superheated vapour generating means 12；
Oil water separator 5, its upper port connects the lower port of condenser pipe 1 by condensing fluid outlet 3, and its middle and upper part passes through water
Sub-export 4 connects the top of the superheated vapour generating means 12, and bottom has oil to export 6.
The outer layer heater 10 of the extractor 9 is steam heating interlayer.
The outer layer of the condenser pipe 1 is condensation water interlayer, and condensation water interlayer bottom has the condensed water water inlet 2, top to have condensation
Water delivery port 7.
The volume of the extractor 9 is 50~100L.
The operation principle of the hydrodistillation device is as follows：Thing to be extracted is put into extractor, is sent out with superheated vapour
Hydrodistillation in generating apparatus, the condensed water water inlet of condenser pipe is passed through cold water, and the steam heating interlayer of extractor is passed through
Water vapour.After through the condensed pipework condensation of the volatile ingredient of hydrodistillation, water vapour becomes aqueous water, with volatile ingredient one
Rise and enter oil water separator, after being separated through oil water separator, moisture reenters steam generator, moisture through moisture outlet
Recycled；1~3h of extraction time, after extraction terminates, oil component is released from the oil outlet of oil water separator bottom
As purity volatile ingredient extract higher.
Embodiment 2
The volatile ingredient in tobacco is extracted using the superheated vapour generating means in embodiment 1, is comprised the following steps that：
10kg tobacco leaf flour mills are worn into tobacco powder, is put into 100L extractors, add the lemon of 1L5wt%
Aqueous acid (effect：Containing alkaline matters such as a large amount of volatile nicotine in tobacco leaf, if be extracted, can influence
Volatile quality, citric acid is combined with alkaline matter, becomes ionic compound, not volatile, and density is more than water), then
Hydrodistillation in used hot water steam generating device.The condensed water water inlet of condenser pipe is passed through cold water, and the water of extractor steams
Vapour heating interlayer is passed through water vapour, through the condensed pipework condensation of the volatile ingredient of hydrodistillation after, water vapour becomes aqueous water,
Enter oil water separator together with volatile ingredient, after being separated through oil water separator, moisture reenters overheat through moisture outlet
Steam generator, moisture is recycled；1~3h of extraction time, after extraction terminates, from the oil of oil water separator bottom
Sub-export is released volatile component and is purity tobacco volatile extract higher.
Embodiment 3
The volatile ingredient in Radix Glycyrrhizae is extracted using the superheated vapour generating means in embodiment 1, is comprised the following steps that：
Radix Glycyrrhizae powder 5kg is put into 50L extractors, then the hydrodistillation in used hot water steam generating device,
The condensed water water inlet of condenser pipe is passed through cold water, and the steam heating interlayer of extractor is passed through water vapour, through hydrodistillation
After the condensed pipework condensation of volatile ingredient, water vapour becomes aqueous water, oil water separator is entered together with volatile ingredient, through oil
After separator is separated, moisture reenters superheated vapour generating means through moisture outlet, and moisture is recycled；Extract
1~3h of time, after extraction terminates, releases oil component and is purity Radix Glycyrrhizae higher from the oil outlet of oil water separator bottom
Volatile extract.
Claims (4)
1. a kind of superheated vapour distilling apparatus, it is characterised in that including：
Alembic (9), its outer layer has heater (10), and its upper port exports (8) and connects condenser pipe (1) by retort gas
Bottom, its lower port exports (11) and connects superheated vapour generating means (12) upper port by hot water and steam；
Oil water separator (5), its upper port connects condenser pipe (1) lower port by condensing fluid outlet (3), and its middle and upper part passes through
Moisture outlet (4) connects the top of the superheated vapour generating means (12), and bottom has oil to export (6).
2. superheated vapour distilling apparatus according to claim 1, it is characterised in that the temperature of the superheated vapour
120~200 DEG C.
3. a kind of superheated vapour distilling apparatus according to claim 1 is used for the method for preparing essential oil of tobaccos, its feature
It is to comprise the following steps：Cigarette sample is infiltrated with citric acid, alembic (9) heating, is passed through superheated vapour distillation, and fraction is cold
Solidifying, essential oil of tobaccos step is collected in water-oil separating.
4. method according to claim 3, it is characterised in that the concentration of the citric acid is 5wt%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710014535.8A CN106867673A (en) | 2017-01-07 | 2017-01-07 | The apparatus and method that essential oil of tobaccos is extracted in a kind of superheated vapour distillation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710014535.8A CN106867673A (en) | 2017-01-07 | 2017-01-07 | The apparatus and method that essential oil of tobaccos is extracted in a kind of superheated vapour distillation |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108937603A (en) * | 2018-09-29 | 2018-12-07 | 杭州老板电器股份有限公司 | Steam amount detecting device |
| CN109207262A (en) * | 2018-10-17 | 2019-01-15 | 武汉轻工大学 | The extraction element and extracting method of volatile plant essence oil |
| WO2019062816A1 (en) * | 2017-09-29 | 2019-04-04 | 晨光生物科技集团股份有限公司 | Continuous distillation process |
| CN109609280A (en) * | 2019-02-19 | 2019-04-12 | 重庆中烟工业有限责任公司 | Plants essential oil distills extraction element |
| CN110419765A (en) * | 2019-08-12 | 2019-11-08 | 四川三联新材料有限公司 | A kind of preparation method and preparation facilities of electronic cigarette tobacco tar |
| CN111398493A (en) * | 2020-03-24 | 2020-07-10 | 云南中烟工业有限责任公司 | Superheated steam distillation extraction device and method for extracting tobacco flavor components |
| CN114703018A (en) * | 2022-04-21 | 2022-07-05 | 福建卫生职业技术学院 | Multifunctional volatile oil extraction device |
| CN116355695A (en) * | 2021-12-27 | 2023-06-30 | 上海烟草集团有限责任公司 | Burley tobacco essential oil, composition containing burley tobacco essential oil, and preparation and application thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH370347A (en) * | 1956-06-01 | 1963-06-30 | Molde Paul Vorbeck Dipl Ing | Process for treating tobacco and means for carrying out the same |
| CN101538510A (en) * | 2009-05-04 | 2009-09-23 | 中国科学院植物研究所 | Plant volatile oil extractor and application thereof |
| CN102487970A (en) * | 2011-12-20 | 2012-06-13 | 云南烟草科学研究院 | Essential oil preparation for preventing and treating tobacco mosaic virus and application thereof |
| CN102559388A (en) * | 2012-02-27 | 2012-07-11 | 浙江中烟工业有限责任公司 | Essential oil of tobaccos as well as preparation method and application thereof to cigarettes |
| CN202359093U (en) * | 2011-12-09 | 2012-08-01 | 广西圣保堂药业有限公司 | Plant essential oil extraction device |
| CN103387879A (en) * | 2013-08-13 | 2013-11-13 | 甘肃省检验检疫科学技术研究院 | Distillation equipment of rose essential oil and preparation method of rose essential oil |
| CN203360416U (en) * | 2013-07-25 | 2013-12-25 | 南京美康生物科技有限公司 | Aromatic plant essential oil extraction device |
| CN104178344A (en) * | 2014-09-10 | 2014-12-03 | 云南中烟工业有限责任公司 | Tobacco hydrolat as well as preparation method and application thereof |
| CN105707968A (en) * | 2016-03-25 | 2016-06-29 | 广东省金叶科技开发有限公司 | Recycling method of tobacco aroma substance |
-
2017
- 2017-01-07 CN CN201710014535.8A patent/CN106867673A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH370347A (en) * | 1956-06-01 | 1963-06-30 | Molde Paul Vorbeck Dipl Ing | Process for treating tobacco and means for carrying out the same |
| CN101538510A (en) * | 2009-05-04 | 2009-09-23 | 中国科学院植物研究所 | Plant volatile oil extractor and application thereof |
| CN202359093U (en) * | 2011-12-09 | 2012-08-01 | 广西圣保堂药业有限公司 | Plant essential oil extraction device |
| CN102487970A (en) * | 2011-12-20 | 2012-06-13 | 云南烟草科学研究院 | Essential oil preparation for preventing and treating tobacco mosaic virus and application thereof |
| CN102559388A (en) * | 2012-02-27 | 2012-07-11 | 浙江中烟工业有限责任公司 | Essential oil of tobaccos as well as preparation method and application thereof to cigarettes |
| CN203360416U (en) * | 2013-07-25 | 2013-12-25 | 南京美康生物科技有限公司 | Aromatic plant essential oil extraction device |
| CN103387879A (en) * | 2013-08-13 | 2013-11-13 | 甘肃省检验检疫科学技术研究院 | Distillation equipment of rose essential oil and preparation method of rose essential oil |
| CN104178344A (en) * | 2014-09-10 | 2014-12-03 | 云南中烟工业有限责任公司 | Tobacco hydrolat as well as preparation method and application thereof |
| CN105707968A (en) * | 2016-03-25 | 2016-06-29 | 广东省金叶科技开发有限公司 | Recycling method of tobacco aroma substance |
Non-Patent Citations (1)
| Title |
|---|
| 王青豪;张熊禄;叶晨;: "微波辐射从烟草下脚料中提取茄尼醇" * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019062816A1 (en) * | 2017-09-29 | 2019-04-04 | 晨光生物科技集团股份有限公司 | Continuous distillation process |
| US11505764B2 (en) | 2017-09-29 | 2022-11-22 | Chenguang Biotech Group Co., Ltd | Continuous distillation process |
| CN108937603A (en) * | 2018-09-29 | 2018-12-07 | 杭州老板电器股份有限公司 | Steam amount detecting device |
| CN109207262A (en) * | 2018-10-17 | 2019-01-15 | 武汉轻工大学 | The extraction element and extracting method of volatile plant essence oil |
| CN109609280A (en) * | 2019-02-19 | 2019-04-12 | 重庆中烟工业有限责任公司 | Plants essential oil distills extraction element |
| CN110419765A (en) * | 2019-08-12 | 2019-11-08 | 四川三联新材料有限公司 | A kind of preparation method and preparation facilities of electronic cigarette tobacco tar |
| CN111398493A (en) * | 2020-03-24 | 2020-07-10 | 云南中烟工业有限责任公司 | Superheated steam distillation extraction device and method for extracting tobacco flavor components |
| CN116355695A (en) * | 2021-12-27 | 2023-06-30 | 上海烟草集团有限责任公司 | Burley tobacco essential oil, composition containing burley tobacco essential oil, and preparation and application thereof |
| CN114703018A (en) * | 2022-04-21 | 2022-07-05 | 福建卫生职业技术学院 | Multifunctional volatile oil extraction device |
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