CN103462215A - Method for improving use value of inferior tobacco leaves with subcritical dry cleaning technology - Google Patents
Method for improving use value of inferior tobacco leaves with subcritical dry cleaning technology Download PDFInfo
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- CN103462215A CN103462215A CN2013104418750A CN201310441875A CN103462215A CN 103462215 A CN103462215 A CN 103462215A CN 2013104418750 A CN2013104418750 A CN 2013104418750A CN 201310441875 A CN201310441875 A CN 201310441875A CN 103462215 A CN103462215 A CN 103462215A
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Abstract
The invention discloses a method for improving the use value of inferior tobacco leaves with a subcritical dry cleaning technology, and the method belongs to the field of the tobacco industry. The inferior tobacco leaves are packed and put into a closed dry cleaning tank and vacuumized; an appropriate amount of subcritical fluid is injected into the dry cleaning tank as dry cleaning solvent, and dry cleaning is carried out under a certain dry cleaning condition; after the dry cleaning, the liquid solvent is pumped into an evaporation tank; a sample and the liquid solvent are respectively subjected to desolvation, so that the solvent is separated from the dry cleaned object, and tobacco leaves with higher quality are obtained. The method for improving the use value of the inferior tobacco leaves can effectively improve the quality of the inferior tobacco leaves, has practical value at the aspects of improving the use rate and grade of the inferior tobacco leaves, reducing the cost and the like, and has very wide application prospect.
Description
Technical field
The present invention relates to a kind of subcritical fluids of utilizing discarded tobacco leaf is dry-cleaned, thereby promote the discarded tobacco leaf material quality, improve the method for its use value.
Background technology
Discarded tobacco leaf refers to the middle yellow Pyatyi in GB2635-86, upper yellow level Four, each following grade tobacco leaf of bluish yellow secondary.This part tobacco leaf is from its presentation quality, color pale brown, yellowish-brown and with cyan, became uneven is even, blade construction is loose, glossiness is weak, multi-band has obvious colored sheet, the residual area of hindering to reach greatly oil content deficiency etc.; From inherent sucking quality, fragrance is short of, fragrance matter is more coarse, bitter peppery, the excitant astringent taste is obvious, pleasant impression is clean, the oral cavity tongue residue is more.Wherein assorted gas is the principal element that causes discarded tobacco leaf and affect quality of tobacco, and the smell that makes the smoker feel unpleasant that assorted gas produces while referring to the tobacco leaf burning mainly contains blue foreign smell, the assorted gas of region and withered and burnt smell etc.
China is tobacco planting and big producing country, and cultivated area occupies first place in the world at present.In tobacco planting and production process, there is a large amount of discarded tobacco leafs to produce, account for greatly 25% of tobacco leaf total output.At present, in tobacco business, discarded tobacco leaf is mainly used in expanded cut tobacco or thin slice, and only in four class cigarette and five class cigarette, uses, and ratio is mostly lower than 10%.Yet, along with the adjustment of market structure, the demand of medium-to-high grade cigarette is more and more large, obtaining of high-quality feedstocks becomes the development priority that cigarette is looked forward to.Discarded tobacco leaf is faced with the series of problems such as level of comprehensive utilization is low, approach is few, the wasting of resources is very serious.In the case, take full advantage of existing tobacco leaf resource, enlarge the output of medium-to-high grade cigarette, promote the overall quality of discarded tobacco leaf raw material, improve its use value to enterprise, society is all had great importance.
A kind of dry mode of washing that advances to do of surface blot or impurity is washed, is removed in subcritical dry-cleaning to sample as solvent by subcritical fluids.Owing to not making water in washing process, but use the subcritical fluids solvent, so be referred to as dry-cleaning.Subcritical dry-cleaning is processed the main feature of discarded tobacco leaf and is utilized exactly subcritical fluids as solvent, under the condition of airtight, anaerobic, low temperature, low pressure, utilize the similar principle that mixes, remove fast the precursor that produces assorted gas in discarded tobacco leaf, thereby promote to a certain extent the quality of discarded tobacco leaf raw material.This process is to complete under room temperature or low temperature, no solvent residue, and cost is low, is easy to industrialization.
At present, (the subcritical abstraction technique of finished product tobacco leaf conformal lowering harm and decreasing coking is found in Qi Kun research, application number: 201110076093.2), remove by extraction the purpose that nicotine and tar precursor thing can reach lowering harm and decreasing coking, but still do not utilize subcritical dry cleaning technology to promote the invention of discarded tobacco leaf material quality and use value.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of discarded tobacco leaf being processed by subcritical dry cleaning technology, the method can effectively reduce the harmful components in discarded tobacco leaf, promote the discarded tobacco leaf quality, can guarantee that again the tobacco leaf face shaping is complete simultaneously, substantially do not affect physical arrangement, do not affect normal following process and make, thus the use value of raising discarded tobacco leaf.
Technical scheme of the present invention is:
1) discarded tobacco leaf is packed, then integral body is inserted in airtight dry-cleaning tank, vacuumize and inject appropriate subcritical fluids as DC naphtha in the dry-cleaning tank, by the complete submergence of discarded tobacco leaf, the dry-cleaning time is 1～10 minute, temperature is 0 ℃～60 ℃, the saturated vapour pressure that pressure is solvent for use under relevant temperature; 2) after dry-cleaning finishes, liquid flux is drawn into to evaporator, sample and liquid flux are carried out respectively to carrying out precipitation treatment; 3) solvent gas evaporated from sample and liquid flux, compress and liquefy through diaphragm type compressor, and liquid solvent streams back dissolving developing agent storage tank, recycle.
Described subcritical fluids is one or more the mixture in propane, butane, HFC-134a, dimethyl ether.
The mass ratio of described dry-cleaning process sample and solvent is 1:1～10.
Described dry-cleaning process continues 1～10 minute.
Described dry-cleaning temperature is 0～60 ℃.
Described dry-cleaning pressure is 0.1～0.8Mpa.
The temperature of described carrying out precipitation treatment is 0～60 ℃.
In described carrying out precipitation treatment, recovered solvent can recycle.
In described desolvation process, can be to the tank body additional heat to accelerate desolvation process.
After the present invention carries out subcritical dry-cleaning processing to discarded tobacco leaf, it is good that the tobacco leaf face shaping keeps, and its ingredient is measured, and its harmful components all have reduction in various degree.Through smokeing panel test, experiment draws, bitter peppery, astringent taste, excitant astringent taste all obviously reduce, the oral cavity tongue residue significantly reduces, thereby effectively improves the quality of discarded tobacco leaf, for the utilization rate that improves discarded tobacco leaf, improve the tobacco leaf grade, the aspect such as to reduce costs all with practical value.Solvent for use can recycle in addition, thereby has reduced production cost, and therefore, the development prospect of this technical method is very wide.
The accompanying drawing explanation
Fig. 1 dry-cleans flow chart
The specific embodiment
The present invention significantly is different from conventional subcritical abstraction technology, can not destroy top layer and the internal structure of sample, it is a kind of fast dry cleaning technology that only acts on the sample top layer, the dryclean time is 1～10min, only remove the free property precursor of sample top layer impurity and harmful components, do not affect the following process of sample; Conventional subcritical abstraction technology needs repeatedly usually, the processing of long period, can cause destruction in various degree to the sample cell structure, for improving extraction efficiency, often is aided with cell wall breaking technology; And the present invention is different from the purpose of subcritical abstraction, the present invention is intended to promote material quality and the use value of discarded tobacco leaf, and subcritical abstraction usually in order to obtain the target extract from raw material.
Embodiment 1:
Get certain inferior grade tobacco formulation module raw tobacco material 500g, in the situation that guarantee that profile is by its packing, integral body is placed in airtight dry-cleaning tank, after closing feeding-passage, vacuumizes, and injects the propane solvent be in a liquid state, by the complete submergence of finished product tobacco leaf; Expect moltenly than 1:3,10 minutes dry-cleaning time, temperature is 30 ℃, pressure 0.29MPa; Dry-cleaning is drawn into evaporator by liquid flux after finishing, and sample and liquid flux are carried out respectively to carrying out precipitation treatment.The solvent gas evaporated from low-quality tobacco sample and liquid flux, compress and liquefy through diaphragm type compressor, and liquid solvent streams back dissolving agent circulating tank, recycle.After processing, the tobacco leaf face shaping keeps good, and its ingredient is measured to its harmful components all reduction in various degree.After processing, sense organ product ratio shows, peppery, the astringent taste of the hardship of sample, excitant astringent taste all obviously reduce more in contrast, the oral cavity tongue residue significantly reduces, inferior grade module quality is improved, in hoisting module fragrance matter and perfume quantity, improve concentration and strength, make this module be promoted to middle-grade cigarette module.
Embodiment 2:
Get the mixed Henan BK31 discarded tobacco leaf 200g that beats, in the situation that guarantee that profile is by its packing, integral body is placed in airtight dry-cleaning tank, injects the butane solvent be in a liquid state, by the complete submergence of finished product tobacco leaf; Expect moltenly than 1:4,5 minutes dry-cleaning time, temperature is 25 ℃, pressure 0.25MPa; After dry-cleaning finishes, according to the method desolvation in embodiment 1, take out sample.After processing, sense organ product ratio shows, the more fresh and sweet fragrant feature of sample raises up, and fragrance matter is better, exquisiteness, and strength is slightly large, stimulates littlely, and pleasant impression is totally comfortable.
Embodiment 3:
Get the mixed C1B1 discarded tobacco leaf 500g that beats in white clouds warehouse, Guizhou, in the situation that guarantee that profile is by its packing, integral body is placed in airtight dry-cleaning tank, injects the dimethyl ether solvent be in a liquid state, by the complete submergence of finished product tobacco leaf; Expect moltenly than 1:5,10 minutes dry-cleaning time, temperature is 10 ℃, pressure 0.36MPa; After dry-cleaning finishes, according to the method desolvation in embodiment 1, take out sample.After processing, sense organ product ratio shows, the combustion characteristics of sample is better more in contrast, and the dry thorn sense of xylon gas and throat reduces, and rich and fine and smooth degree promotes to some extent, and perfume quantity increases.
Embodiment 4:
Get the mixed CXK discarded tobacco leaf 5kg that beats in Chongqing, in the situation that guarantee that profile is by its packing, integral body is placed in airtight dry-cleaning tank, injects the HFC-134a solvent be in a liquid state, by the complete submergence of finished product tobacco leaf; Expect moltenly than 1:4,8 minutes dry-cleaning time, temperature is 20 ℃, pressure 0.57MPa; After dry-cleaning finishes, according to the method desolvation in embodiment 1, take out sample.After processing, sense organ product ratio shows, the assorted gas of the powder of sample reduces more in contrast, and strength reduces, and returning sweet sense and mellow and full sense increases to some extent, and the oral cavity comfort level improves.
It should be noted last that: above embodiment is only in order to explanation, and unrestricted technical scheme of the present invention, although with reference to above-described embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: still can modify or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of claim scope of the present invention.
Claims (7)
1. a method of utilizing subcritical dry cleaning technology to improve discarded tobacco leaf use value, its feature comprises the steps:
1) by the packing of discarded tobacco leaf sample, then integral body is inserted in airtight dry-cleaning tank, vacuumizes, and inject a certain amount of subcritical DC naphtha in the dry-cleaning tank, by the complete submergence of discarded tobacco leaf, under certain dry-cleaning condition, carries out timing dry-cleaning;
2) after dry-cleaning finishes, liquid flux is drawn into to evaporator, carry out the desolvation processing, in the process of precipitation, the temperature in the dry-cleaning tank remains on 0～60 ℃, from dry-cleaning tank bottom is extracted liquid flux out, extract the solvent of gasification out from the top of dry-cleaning tank, after the solvent in the discarded tobacco leaf sample removes fully, take out sample, the liquid flux that contains the discarded tobacco leaf extract of extracting out from dry-cleaning tank bottom, through evaporation gasification separation solvent;
3) solvent gas evaporated from sample and liquid flux, compress and liquefy through diaphragm type compressor, and liquid solvent streams back dissolving developing agent storage tank, recycle.
2. method according to claim 1, the mass ratio that it is characterized in that described discarded tobacco leaf sample and DC naphtha is 1:1～10.
3. method according to claim 1, it is characterized in that described dry-cleaning condition: pressure is 0.1～0.8Mpa, and temperature is 0～60 ℃, and the time is 1～10min.
4. method according to claim 1, is characterized in that described subcritical DC naphtha is one or more the mixing in propane, butane, HFC-134a, dimethyl ether.
5. method according to claim 1, is characterized in that can using vavuum pump to be assisted in described solvent and the separation process of dry-cleaning thing.
6. method according to claim 1, is characterized in that the solvent reusable edible after described precipitation.
7. method according to claim 1, is characterized in that in described desolvation process, can be to the tank body additional heat to accelerate desolvation process.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059778A (en) * | 2014-06-10 | 2014-09-24 | 苏州泽达兴邦医药科技有限公司 | Method for extracting endogenous aromatic substances with water under subcritical conditions |
| CN107080970A (en) * | 2017-03-20 | 2017-08-22 | 河南雍华生态农业科技有限公司 | A kind of subcritical dialysis process of water soluble ingredient |
| CN107137952A (en) * | 2017-03-20 | 2017-09-08 | 河南雍华生态农业科技有限公司 | A kind of subcritical method for implanting of grape pip anthocyanidin |
| CN109846076A (en) * | 2018-12-12 | 2019-06-07 | 云南中烟工业有限责任公司 | A method of promoting poorly rated property quality of tobacco |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1759769A (en) * | 2005-11-11 | 2006-04-19 | 侯金荣 | Method for treating tobacco by subcritical fluid |
| CN102090710A (en) * | 2011-03-29 | 2011-06-15 | 祁鲲 | Subcritical extraction process for keeping shape, reducing harm and reducing tar of finished tobacco leaves |
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2013
- 2013-09-25 CN CN2013104418750A patent/CN103462215A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1759769A (en) * | 2005-11-11 | 2006-04-19 | 侯金荣 | Method for treating tobacco by subcritical fluid |
| CN102090710A (en) * | 2011-03-29 | 2011-06-15 | 祁鲲 | Subcritical extraction process for keeping shape, reducing harm and reducing tar of finished tobacco leaves |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104059778A (en) * | 2014-06-10 | 2014-09-24 | 苏州泽达兴邦医药科技有限公司 | Method for extracting endogenous aromatic substances with water under subcritical conditions |
| CN104059778B (en) * | 2014-06-10 | 2016-07-20 | 苏州泽达兴邦医药科技有限公司 | A kind of method of Subcritical water chromotagraphy endogenous flavor matter |
| CN107080970A (en) * | 2017-03-20 | 2017-08-22 | 河南雍华生态农业科技有限公司 | A kind of subcritical dialysis process of water soluble ingredient |
| CN107137952A (en) * | 2017-03-20 | 2017-09-08 | 河南雍华生态农业科技有限公司 | A kind of subcritical method for implanting of grape pip anthocyanidin |
| CN109846076A (en) * | 2018-12-12 | 2019-06-07 | 云南中烟工业有限责任公司 | A method of promoting poorly rated property quality of tobacco |
| CN109846076B (en) * | 2018-12-12 | 2022-09-13 | 云南中烟工业有限责任公司 | Method for improving quality of low-applicability tobacco leaves |
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Owner name: ZHENGZHOU UNIVERSITY CHINA TOBACCO HENAN INDUSTRY Free format text: FORMER OWNER: ZHENGZHOU UNIVERSITY Effective date: 20141114 |
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Inventor after: Qin Guangyong Inventor after: Gu Lingbiao Inventor after: Pang Huili Inventor after: Ma Yuping Inventor after: Qi Kun Inventor after: Luo Dengshan Inventor after: Xia Zhenglin Inventor before: Qin Guangyong Inventor before: Gu Lingbiao Inventor before: Pang Huili Inventor before: Qi Kun Inventor before: Luo Dengshan Inventor before: Xia Zhenglin |
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Free format text: CORRECT: INVENTOR; FROM: QIN GUANGYONG GU LINGBIAO PANG HUILI QI KUN LUO DENGSHAN XIA ZHENGLIN TO: QIN GUANGYONG GU LINGBIAO PANG HUILI MA YUPING QI KUN LUO DENGSHAN XIA ZHENGLIN |
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Effective date of registration: 20141114 Address after: 455000 Anyang province Anyang Henan Development Zone advanced technology equipment Park Applicant after: Henan Yalinjie Biological Technology Co., Ltd. Applicant after: Zhengzhou University Applicant after: China Tobacco Henan Industrial Co., Ltd. Address before: 455000 Anyang province Anyang Henan Development Zone advanced technology equipment Park Applicant before: Henan Yalinjie Biological Technology Co., Ltd. Applicant before: Zhengzhou University |
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Application publication date: 20131225 |