CN111264898B - Tobacco shred expanding agent - Google Patents
Tobacco shred expanding agent Download PDFInfo
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- CN111264898B CN111264898B CN201811469480.0A CN201811469480A CN111264898B CN 111264898 B CN111264898 B CN 111264898B CN 201811469480 A CN201811469480 A CN 201811469480A CN 111264898 B CN111264898 B CN 111264898B
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- tobacco shred
- halogenated
- tobacco
- expanding agent
- ester compound
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
- A24B3/182—Puffing
Abstract
The invention relates to a tobacco shred expanding agent which comprises the following components in percentage by mass: 49-98% of halogenated olefin; 1-50% of ester compounds; 1 to 20% of halogenated ether or halogenated alcohol. The tobacco shred expanding agent has the advantages of zero ODP value, very low GWP value, moderate boiling point, safety, low toxicity, incombustibility and easy volatilization, and is very suitable for expanding and processing tobacco shreds in the tobacco processing industry.
Description
Technical Field
The invention relates to an expanding agent, in particular to a tobacco shred expanding agent used in the tobacco processing industry.
Background
The tobacco shred expansion technology is a new technology which is rapidly developed in the end of sixties and in the early seventies, and the filling capacity of the tobacco shreds can be obviously improved after expansion treatment, so that the consumption of single boxes of tobacco leaves of cigarettes is reduced, and the nicotine content of smoke in the tobacco shreds is reduced. The cigarette is doped with the expanded cut tobacco, so that the combustion performance of the cigarette can be enhanced, and the tar content in the cigarette is further reduced, and therefore, related technologies and equipment are researched and developed in various countries in the world.
The tobacco industry generally adopts a freon tobacco shred expansion method, and CFC-11 discharged in the production process is forbidden to be used because the CFC-11 destroys the ozone layer; the carbon dioxide expansion method has large equipment investment and high fragmentation rate; the nitrogen expansion method and the hydrocarbon expansion method are not popularized and used at home and abroad due to the safety reason.
The tobacco shred expanding agent used at present has more types, but the basic expanding process is similar. The tobacco shred expanding agent is soaked into the tobacco shred at a certain temperature and pressure by utilizing the wettability and the dissolubility of the tobacco shred expanding agent, and is quickly gasified by utilizing the volatility of the tobacco shred expanding agent under the action of heat, so that the effect of expanding the tobacco shred is achieved.
CN1656948A discloses a tobacco shred expanding agent which is composed of pentafluoropropane, pentafluorobutane and decafluoropentane or perfluorobutyl methyl ether according to a certain proportion, has the characteristics of zero or very low ozone consumption potential, moderate boiling point, safety, low toxicity, incombustibility, volatility and the like, and can be used as a tobacco shred expanding agent in the tobacco industry instead of CFC-11.
CN1823637A discloses a tobacco shred expansion agent composition, which is composed of pentafluorobutane and heptafluoropropane, a second is composed of pentafluorobutane and hexafluoropropane, a third is composed of pentafluorobutane and pentafluoropropane, a fourth is composed of pentafluorobutane and tetrafluoroethane, and a fifth is composed of pentafluorobutane and decafluoropentane. The tobacco shred expansion agent composition has zero Ozone Depletion Potential (ODP), moderate boiling point, safety, low toxicity and incombustibility, and can replace CFC-11 to be used as a tobacco shred expansion agent in the tobacco industry.
CN101766328A discloses a tobacco shred expanding agent composition, which comprises the following components in percentage by mass: 50-99% of fluorinated alkane and 1-50% of alcohol or ether or alkane, wherein the fluorinated alkane is one or any combination of more of pentafluoropropane, pentafluorobutane, decafluoropentane or methoxy heptafluoropropane. The environment-friendly tobacco shred expansion agent composition has good chemical stability, and the Ozone Depletion Potential (ODP) index of the environment-friendly tobacco shred expansion agent composition is zero and is far lower than CFC-11.
Most of the above tobacco shred swelling agents adopt hydrofluorocarbon, contain no chlorine in the molecule, only hydrogen and fluorine atoms, and do not destroy the ozone layer, and ODP is 0. However, the substances have long atmospheric lifetime, relatively high greenhouse effect and large GWP (the greenhouse gas has the potential capability of causing global warming within 100 years relative to carbon dioxide, and the larger the value is, the larger the greenhouse effect is caused by the longer the atmospheric lifetime of the substances is, and the GWP of the saturated hydrofluorocarbon tobacco shred expansion agent is different from thousands to tens of thousands). Hydrofluorocarbons were listed as greenhouse gases by the Kyoto protocol passed in 1997. As most hydrofluorochlorocarbons begin to gradually convert to hydrofluorocarbons, the sound of global cuts to hydrofluorocarbons begins to emerge. In 2016, 10/15 days, the 28 th book of the Montreal protocol agreed upon and agreed upon the reduction of the potent greenhouse gas Hydrofluorocarbons (HFCs) that contribute to global warming. According to the content of the amendments, more than 100 developing countries including China have made a definite schedule to cut down the usage of hydrofluorocarbons, and the consumption and production of frozen HFCs from 2024 to 2040 years, all countries are expected to consume HFCs not more than 15% -20% of their respective benchmark, and the selection of alternatives to hydrofluorocarbons will become one of the next major jobs. The alternatives currently under investigation worldwide need to meet simultaneously: the Ozone Depletion Potential (ODP) is approximately O, the greenhouse effect potential (GWP) is as low as possible, and the atmospheric lifetime is as short as possible. The agreement has been signed to provide a challenge to the use of the above series of hydrofluorocarbon tobacco extender formulations.
The tobacco shred expanding agent provided by the patent has the characteristics of zero ODP value, very low GWP value, moderate boiling point, safety, low toxicity, incombustibility, volatility and the like, and is suitable for being used in the tobacco processing industry.
Disclosure of Invention
The invention aims to provide the environment-friendly tobacco shred expansion agent which has zero or very low ODP index, very low GWP value and various index data reaching higher use indexes.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
the tobacco shred expanding agent comprises the following components in percentage by mass:
49-98% of halogenated olefin
1 to 50 percent of ester compound
1 to 20% of halogenated ether or halogenated alcohol.
Preferably, the tobacco shred expanding agent comprises the following components in percentage by mass:
halogenated olefin 70%
20 percent of ester compound
10% of halogenated ether or halogenated alcohol.
Wherein the halogenated olefin is at least one selected from the group consisting of tetrafluoropropene, chlorotrifluoropropene, and hexafluorobutene.
Wherein the ester compound is at least one selected from a saturated aliphatic ester compound with 3 to 5 carbon atoms, an unsaturated ester compound with 3 to 5 carbon atoms or an aromatic ester compound with 8 to 10 carbon atoms.
Wherein, the halogenated ether or halogenated alcohol is one or any combination of several of halogenated ether with 3 to 5 carbon atoms or halogenated alcohol compounds with 3 to 5 carbon atoms.
The raw materials are all first-grade products, and the composition can be uniformly mixed according to the proportion, and is mainly prepared in a preparation tank according to the mass fraction, and is stirred to be uniformly mixed, so that the tobacco shred expanding agent is obtained.
The invention has the following beneficial effects:
1. the tobacco shred swelling agent used by the invention has low solubility of raw materials in water, thus being beneficial to the separation and recycling of swelling substances and greatly reducing the cost of the tobacco shred swelling agent.
2. The ester compound used by the tobacco shred expanding agent is a small molecular compound, and because the tobacco shreds can be expanded by small pores, a plurality of large tobacco shred expanding compound molecules cannot enter micropores of the tobacco shreds at present, while the ester compound can smoothly enter the micropores to play a role in increasing the expansion efficiency, thereby greatly meeting the use requirements of the conventional tobacco shred expanding agent. Because the ODP index of the added ester compound is zero, the ODP index cannot be increased, and the damage to the ozone layer cannot be caused. In addition, the swelling agent of the ester compound does not undergo thermal decomposition or property change during the swelling process, and thus has good thermochemical stability and does not undergo thermal decomposition or thermal instability.
3. The halogenated olefin, the alcohol, the halogenated ether and the ester compound in the tobacco shred expanding agent are all nontoxic substances, so that the tobacco shred expanding agent does not cause toxic influence on the environment and human bodies, and the residual amount of the expanding agent is also low.
4. The halogenated olefin, the alcohol, the halogenated ether and the ester compound in the tobacco shred expanding agent are all non-flammable compounds, the halogenated olefin has no flash point, and the use safety is high.
5. The preparation method of the tobacco shred swelling agent has the advantages that the preparation method is simple in process equipment, the later-stage process flow is basically the same, the use and the preparation of the tobacco shred swelling agent can be completely met in the process, and meanwhile, the separation can be completed only by simple operation for the later-stage operation because the solubility of the added ester compound in water is very low, so that the production efficiency is improved, and the recovery and use cost is reduced.
6. The tobacco shred expanding agent has low ozone consumption potential and cannot cause the damage of an ozone layer; the atmospheric service life is short, the greenhouse effect is low, the GWP value is lower than 100, the GWP of the tobacco shred expansion agent with different formulas is 10-100 and is one to two orders of magnitude lower than that of a saturated hydrofluorocarbon compound, and the novel environment-friendly requirement is met; the boiling point is lower, the volatile property is realized, the expansion effect can not cause the problems of difficult expansion and the like; the molecules are small molecular compounds which are easy to exert the expansion function and improve the expansion efficiency; the solubility in water is low, the later recovery is easy, and the recovery and use cost is reduced; meanwhile, the expanding agent has the advantages of extremely low toxicity, safety, good thermal stability and the like, and can be completely used as a novel tobacco shred expanding agent to be used as an existing substitute in the tobacco industry.
Detailed Description
The following is a detailed description of the invention, which is intended to further illustrate the invention and not to limit it.
Example 1
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene and monochlorotrifluoropropene (the mass ratio of the tetrafluoropropene to the monochlorotrifluoropropene is 3: 2), 20 percent of ethyl formate and 10 percent of pentafluoropropanol.
The preparation method comprises the following steps: the raw materials are weighed according to the proportion, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 2
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene, chlorotrifluoropropene and hexafluorobutene (the mass ratio of the tetrafluoropropene to the chlorotrifluoropropene to the hexafluorobutene is 3: 2: 1), 20 percent of ethyl formate and 10 percent of pentafluoropropanol.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 3
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene and monochlorotrifluoropropene (the mass ratio of the tetrafluoropropene to the monochlorotrifluoropropene is 3: 2), 20 percent of propyl formate and 10 percent of pentafluoropropanol.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 4
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene, chlorotrifluoropropene and hexafluorobutene (the mass ratio of the tetrafluoropropene to the chlorotrifluoropropene to the hexafluorobutene is 3: 2: 1), 20 percent of propyl formate and 10 percent of pentafluoropropanol.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 5
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene and monochlorotrifluoropropene (the mass ratio of the tetrafluoropropene to the monochlorotrifluoropropene is 3: 2), 20 percent of propyl formate and 10 percent of trifluoromethyl methyl ether.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 6
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene and monochlorotrifluoropropene (the mass ratio of the tetrafluoropropene to the monochlorotrifluoropropene is 3: 2), 20 percent of propyl formate and 10 percent of trifluoromethyl methyl ether.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Example 7
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 70 percent of mixture of tetrafluoropropene, chlorotrifluoropropene and hexafluorobutene (the mass ratio of the tetrafluoropropene to the chlorotrifluoropropene to the hexafluorobutene is 3: 2: 1), 20 percent of propyl formate and 10 percent of trifluoromethyl methyl ether.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Comparative example 1
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: 85% of pentafluoropropane and 15% of n-pentane.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Comparative example 2
The composition of the tobacco shred expansion agent of the embodiment comprises the following components in percentage by mass: decafluoropentane and methoxy heptafluoropropane (5: 2) 90%, diethyl ether 10%.
The preparation method comprises the following steps: the raw materials are weighed according to the mass percentage, then placed in a mixing tank, stirred and mixed uniformly, and then pressurized and filtered by a 500-mesh filter to prepare the tobacco shred expanding agent of the embodiment.
Application effects of the embodiments
In a tobacco shred expansion processing workshop of a certain famous tobacco enterprise, the tobacco shred expansion agents of the embodiment 1 to the embodiment 7 and the comparative example 1 and the comparative example 2 are respectively used for expanding tobacco shred raw materials of the same batch under the same adding amount and the same process conditions, and the results are shown in the following table:
the durability refers to the time interval between the dipping of the cut tobacco in the cut tobacco expanding agent and the microwave expansion of the cut tobacco entering the microwave cavity, and the longer the allowed time interval for reaching the same expansion effect, the better the durability.
Tests prove that the tobacco shred expanding agent of the invention uses the same tobacco shred expanding equipment as the original expanding agent, and does not need to change the equipment. The expansion process flow is the same as the original process flow, the temperature of the evaporator is slightly reduced (5-10 ℃), the impregnation pressure of the medium working tank is reduced (0.7-1.4 MPa, the existing 0.5-1.0MPa), and the technical indexes are all reduced, and equipment is not required to be changed.
The tobacco shred expanding agent provided by the invention has the advantages that the GWP value is remarkably reduced, the environmental protection requirement of sustainable development is met, the color and the expansion index of the expanded tobacco shred are not lower than those of the original expanding agent, the durability is remarkably improved, the difficulty of the expansion process is reduced, the recovery rate of the expanding agent is improved, and the equipment operation cost is reduced.
Claims (2)
1. The tobacco shred expanding agent is characterized by comprising the following components in percentage by mass:
49-98% of halogenated olefin
1 to 50 percent of ester compound
1 to 20% of halogenated ether or halogenated alcohol,
wherein the halogenated olefin is selected from at least one of tetrafluoropropene, chlorotrifluoropropene, and hexafluorobutene; the ester compound is at least one of a saturated aliphatic ester compound with 3 to 5 carbon atoms, an unsaturated ester compound with 3 to 5 carbon atoms or an aromatic ester compound with 8 to 10 carbon atoms; the halogenated ether or halogenated alcohol is selected from a halogenated ether of 3 to 5 carbon atoms or a halogenated alcohol of 3 to 5 carbon atoms.
2. The tobacco shred swelling agent according to claim 1, wherein the tobacco shred swelling agent comprises the following components in percentage by mass:
halogenated olefin 70%
20 percent of ester compound
10 percent of halogenated ether or halogenated alcohol,
wherein the halogenated olefin is selected from at least one of tetrafluoropropene, chlorotrifluoropropene, and hexafluorobutene; the ester compound is at least one of a saturated aliphatic ester compound with 3 to 5 carbon atoms, an unsaturated ester compound with 3 to 5 carbon atoms or an aromatic ester compound with 8 to 10 carbon atoms; the halogenated ether or halogenated alcohol is selected from a halogenated ether of 3 to 5 carbon atoms or a halogenated alcohol of 3 to 5 carbon atoms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469480.0A CN111264898B (en) | 2018-12-04 | 2018-12-04 | Tobacco shred expanding agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469480.0A CN111264898B (en) | 2018-12-04 | 2018-12-04 | Tobacco shred expanding agent |
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| Publication Number | Publication Date |
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| CN111264898A CN111264898A (en) | 2020-06-12 |
| CN111264898B true CN111264898B (en) | 2022-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811469480.0A Active CN111264898B (en) | 2018-12-04 | 2018-12-04 | Tobacco shred expanding agent |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104919A (en) * | 1985-06-21 | 1988-03-09 | 英美烟草公司 | The improvement of expanding tobacco |
| CN1063300A (en) * | 1990-12-17 | 1992-08-05 | 纳幕尔杜邦公司 | Constant boiling compositions of fluorinated hydrocarbons |
| CN1668562A (en) * | 2002-06-20 | 2005-09-14 | Pcbu服务公司 | Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methods |
| CN1732196A (en) * | 2003-01-03 | 2006-02-08 | 陶氏环球技术公司 | Polyhydric alcohol combination and polyisocyanate-based foam prepared from the same |
| CN1960958A (en) * | 2004-01-30 | 2007-05-09 | 大湖化学公司 | Production processes and systems, compositions, surfactants, monomer units, metal complexes, phosphate esters, glycols, aqueous film forming foams, and foams stabilizers |
| CN101443394A (en) * | 2006-03-31 | 2009-05-27 | 阿克马法国公司 | Blowing agent composition |
-
2018
- 2018-12-04 CN CN201811469480.0A patent/CN111264898B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87104919A (en) * | 1985-06-21 | 1988-03-09 | 英美烟草公司 | The improvement of expanding tobacco |
| CN1063300A (en) * | 1990-12-17 | 1992-08-05 | 纳幕尔杜邦公司 | Constant boiling compositions of fluorinated hydrocarbons |
| CN1668562A (en) * | 2002-06-20 | 2005-09-14 | Pcbu服务公司 | Methods for preparing ethers, ether compositions, fluoroether fire extinguishing systems, mixtures and methods |
| CN1732196A (en) * | 2003-01-03 | 2006-02-08 | 陶氏环球技术公司 | Polyhydric alcohol combination and polyisocyanate-based foam prepared from the same |
| CN1960958A (en) * | 2004-01-30 | 2007-05-09 | 大湖化学公司 | Production processes and systems, compositions, surfactants, monomer units, metal complexes, phosphate esters, glycols, aqueous film forming foams, and foams stabilizers |
| CN101443394A (en) * | 2006-03-31 | 2009-05-27 | 阿克马法国公司 | Blowing agent composition |
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| CN111264898A (en) | 2020-06-12 |
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