CN114343232A - Method for trapping substances in flue gas by using high-temperature distillation method - Google Patents
Method for trapping substances in flue gas by using high-temperature distillation method Download PDFInfo
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- CN114343232A CN114343232A CN202210204518.1A CN202210204518A CN114343232A CN 114343232 A CN114343232 A CN 114343232A CN 202210204518 A CN202210204518 A CN 202210204518A CN 114343232 A CN114343232 A CN 114343232A
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Abstract
The invention discloses a method for trapping substances in smoke by using a high-temperature distillation method, which is characterized by comprising the following steps of: and (3) separating and trapping the smoke gas obtained by heating and distilling the tobacco by using high-temperature gas at the temperature of 400-900 ℃ to obtain the substances in the smoke gas. The invention also discloses application of the substance obtained by the method in an additive of electronic cigarette tobacco tar or a cigarette which is not burnt by heating.
Description
Technical Field
The invention relates to the technical field of tobacco product processing, in particular to a method for trapping substances in smoke by a high-temperature distillation method and application of the trapped substances in manufacturing electronic cigarette tobacco tar and heating non-combustible cigarettes to improve smoking quality.
Background
While traditional cigarettes require tobacco to be lit for smoking, electronic cigarettes atomize liquids containing nicotine to form a vapor for inhalation. The tobacco product without burning is a novel tobacco product which heats the tobacco core made of cut tobacco or other tobacco materials by using a special heat source (150-500 ℃), and the tobacco core is only heated but not burnt, and is characterized in that the release amount of harmful ingredients is lower than that of the traditional cigarette and certain tobacco characteristic feeling can be brought to consumers. The electric heating non-combustible tobacco product is used as a main type for heating the non-combustible tobacco product, and the heating mode mainly utilizes electric energy to heat the tobacco product, so that the tobacco material generates aerosol in a heating state and is inhaled, and the requirements of consumers are met.
In order to further improve the smoking mouthfeel of the liquid tobacco tar heating electronic cigarette and the heating non-combustion electronic cigarette and better achieve the smoking effect of the traditional cigarette, more researches are directed to extracting effective substances from tobacco, the effective substances are added into the liquid tobacco tar heating electronic cigarette and the heating non-combustion electronic cigarette as additives, the method comprises the modes of extraction, distillation, dry distillation and the like, components extracted in different modes can generate completely different consumption feelings when being applied to products, and the high-temperature steam distillation is a method with good effect, relatively simple process and lower cost. However, the high-temperature steam distillation does not have industrial facilities and equipment for extracting tobacco components in a large scale, and the invention provides a distillation device for trapping substances in smoke by using a high-temperature distillation method according to the high-temperature steam distillation requirement.
Disclosure of Invention
In order to solve the problem of difference of smoking mouthfeel of the electronic cigarette heated by liquid tobacco tar and the conventional cigarette heated without burning, the invention designs a method for trapping substances in the smoke of the conventional cigarette by using a high-temperature distillation method, and uses the trapped substances as additives in novel tobaccos such as electronic cigarette tobacco tar or a heated non-burning cigarette and the like, so that the smoking mouthfeel of the conventional cigarette can be better achieved.
The technical scheme of the invention is as follows:
the invention discloses a method for trapping substances in smoke by using a high-temperature distillation method, which comprises the following steps: and (3) separating and trapping the smoke gas obtained by heating and distilling the tobacco by using high-temperature gas at the temperature of 400-900 ℃ to obtain the substances in the smoke gas.
Preferably, the high temperature gas is a non-oxygen gas or a hypoxic air; the non-oxygen gas is chemically inert gas or organic solvent gas, and the low-oxygen air is air with oxygen content not more than 10 v/v%.
Preferably, the chemically inert gas is one or more of carbon dioxide, nitrogen, helium or water vapor; the organic solvent gas is one or more of propylene glycol, glycerol or ethanol.
Preferably, the tobacco is cut tobacco, the width of the cut tobacco is 0.8-1.2mm, and the water content is (10 +/-3) wt%.
Preferably, the relative penetration speed of the high-temperature gas to the tobacco is 0.2m/s-1.5 m/s.
Preferably, the flue gas is captured as one of solvent absorption, chilled collection or forced chilled collection.
Preferably, the distillation is carried out in a distillation apparatus comprising the following components: a distillation chamber 3, a high-temperature gas supply device 6, a smoke extraction device 4 and a feeding device 1;
the distillation chamber 3 is a cross hollow pipe, the upper pipe at the cross point is a tobacco inlet pipe 31, and the top of the distillation chamber is a feeding airlock 2; the feeding device 1 is arranged above the feeding airlock 2; the lower pipe at the intersection is a waste discharge pipe 34, and the bottom of the lower pipe is a discharge air lock 35; the left pipe at the intersection is a high-temperature gas inlet pipeline 32, and the pipe orifice of the left pipe is connected with a high-temperature gas supply device 6; the right pipe at the intersection is a smoke outlet pipeline 33, and the pipe orifice of the smoke outlet pipeline is connected with a smoke exhaust device 4; the outer wall of the smoking device 4 is provided with an interlayer which is a cooling system 5.
Preferably, the discharge airlock 35 is in the form of a spiral sheet.
The steps of distilling tobacco using a distillation apparatus are as follows: the cut tobacco enters a distillation chamber 3 from a feeding air lock 2 through a feeding device 1, and the locking opening of the feeding air lock 2 is sealed and isolated from air; the tobacco shreds are descended to the cross point through the inlet pipeline 31 and contacted with high-temperature gas of 400-900 ℃ from the inlet pipeline 32 through the high-temperature gas, and the tobacco shreds are heated and carbonized during the process of passing through the tobacco shreds, and smoke substances are distilled out; the smoke substance enters the pipeline of the smoke exhaust device 4 through the smoke outlet pipeline 33, is cooled in the cooling system 5 at first and is extracted through the smoke exhaust device 4; and (3) performing one or more of solvent absorption, cooling collection or pressurized cooling collection on the extracted flue gas, and performing separation and vacuum freeze drying until the water content is below 2 wt% to obtain a dark brown viscous substance, namely the trapped substance in the flue gas.
The distilled carbon cut tobacco waste falls onto the spiral sheet-shaped discharge airlock 35 under the action of gravity, and the carbonized tobacco waste is discharged through rotation of the discharge airlock 35; the rotating speed of the discharging airlock 35 is adjustable, and the optimal rotating speed is determined according to the distillation speed, so that the falling speed of the carbonized tobacco waste and the cut tobacco is determined; on the one hand, the substances to be distilled out of the tobacco are completely distilled out, and on the other hand, the distilled gas is not unnecessarily consumed.
The second aspect of the invention discloses the application of the substance obtained by the method in the electronic cigarette tobacco tar or the additive of a heated non-burning cigarette.
The invention has the beneficial effects that:
1. the method of the invention firstly adopts high-temperature gas with the temperature of 400-900 ℃ to distill substances in the tobacco shreds, and then traps the substances. The trapped substances are used as additives in electronic cigarette tobacco tar or heated non-combustible cigarettes, and can basically achieve the smoking taste of the traditional cigarettes.
2. The invention designs a distilling device for high-temperature distillation of tobacco, wherein a distilling chamber 3 is a cross hollow pipe, an upper pipe at the cross point is a tobacco inlet pipeline 31, a lower pipe is a waste material discharge pipeline 34, a left pipe is a high-temperature gas inlet pipeline 32, a right pipe is a smoke outlet pipeline 33, and the pipe orifice of the smoke outlet pipeline is connected with a smoke exhaust device 4. By using the distillation device designed by the invention, the tobacco is completely distilled, and the substances in the released smoke are completely collected.
3. The lower waste discharge pipe 3 of the distillation apparatus of the present invention is provided with a spiral sheet-like discharge airlock 35. The carbonized tobacco waste after distillation falls onto the discharging airlock 35 of the spiral sheet under the action of gravity, and the discharging airlock 35 rotationally discharges the carbonized tobacco waste. The rotating speed of the discharging airlock 35 is adjustable, and the optimal rotating speed can be determined according to the distillation speed, so that the falling speed of the carbonized tobacco waste and the cut tobacco is determined; on the one hand, the total distillation of the substances to be distilled out of the tobacco is ensured, and on the other hand, the unnecessary consumption of the distilled gas is also ensured.
4. The method of the invention provides a new idea for improving the influence of the traditional cigarette on the health of people. The tobacco used in the invention has no limit on the length of the cut tobacco, and can be normal cut tobacco or broken cut tobacco; the use of the shredded tobacco can reduce the subsequent processing cost. The produced carbonized waste material of the tobacco shreds can be used as fertilizer or fuel.
Drawings
FIG. 1 is a schematic view of a distillation apparatus for distilling tobacco according to the present invention.
FIG. 2 is an exploded view of a distillation apparatus for distilling tobacco according to the present invention.
The reference signs are: 1. a feeding device; 2. feeding air lock; 3. a distillation chamber; 31. entering a pipeline; 32. high-temperature gas enters the channel; 33. a flue gas outlet pipeline; 34. a waste discharge channel; 35. discharging airlock; 4. a smoking device; 5. a cooling system; 6. high-temperature gas supply device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available by purchase.
Example 1: a certain specification A of the red river brand is used as a raw material, and high-temperature steam of 500 ℃ is used for distillation. Using a distillation apparatus as shown in FIG. 1; fig. 2 shows an exploded view of a distillation apparatus. The distillation apparatus of the present invention comprises the following components: a distillation chamber 3, a high-temperature gas supply device 6, a smoke extraction device 4 and a feeding device 1; wherein the distillation chamber 3 is a cross hollow pipe, the upper pipe at the cross point is a tobacco inlet pipe 31, the top of the cross point is a feeding airlock 2, and the feeding device 1 is arranged above the feeding airlock 2; the lower pipe at the intersection is a waste discharge pipeline 34, and the bottom of the lower pipe is a discharge air lock 35 which is in a spiral sheet shape; the left pipe at the intersection is a high-temperature gas inlet pipeline 32, and the pipe orifice of the left pipe is connected with a high-temperature gas supply device 6; the right pipe at the intersection is a smoke outlet pipeline 33, and the pipe orifice of the smoke outlet pipeline is connected with a smoke exhaust device 4; the outer wall of the smoking device 4 is provided with an interlayer which is a cooling system 5.
The high temperature distillation step using the distillation apparatus shown in FIG. 1 was as follows:
the cut tobacco of a certain specification of the red river brand A enters a pipeline 31 from a feeding air lock 2 through a feeding device 1 and then is conveyed into a distillation chamber 3; after the tobacco shreds are lowered to the cross points, the tobacco shreds are contacted with high-temperature steam of 500 ℃ from a high-temperature gas inlet pipeline 32, the tobacco shreds are heated and carbonized in the process that the high-temperature steam passes through the tobacco shreds, smoke substances are distilled out, the smoke substances enter a pipeline of a smoke extraction device 4 through a smoke outlet pipeline 33, are cooled to about 20 ℃ through water in a cooling system 5 and are extracted through the smoke extraction device 4; the extracted flue gas is sequentially cooled and absorbed by a solvent, and is separated and vacuum freeze-dried to form a dark brown viscous substance with the water content of 2 wt%.
The carbonized tobacco waste after distillation falls onto the spiral sheet-shaped discharge airlock 35 under the action of gravity, and the discharge airlock 35 rotationally discharges the carbonized tobacco waste; determining the optimal rotating speed of the discharging airlock 35 according to the distillation speed, and controlling the falling speed of the carbonized tobacco waste and the tobacco shreds; on the one hand, the total distillation of the substances to be distilled out of the tobacco is ensured, and on the other hand, the unnecessary consumption of the distilled gas is also ensured.
The obtained substance was dissolved in propylene glycol to obtain electronic cigarette liquid, and an analytical test was performed, and the obtained electronic cigarette liquid was as shown in table 1 below. The liquid in the table 1 is used for the suction of an electronic cigarette atomizer, and is sucked and evaluated with cigarettes of A certain specification of a traditional Honghe brand, electronic cigarettes of a certain brand and cigarettes of a certain brand which are heated and do not burn, and the smoking evaluation results are compared, and the results are shown in the table 2.
TABLE 1 substance obtained by high-temperature distillation of cut tobacco of certain specification A of Red river brand
| Colour(s) | Dark brown |
| Total concentration of particulate matter in propylene glycol solution | 10.5wt％ |
| Nicotine concentration in propylene glycol solution | 2.58wt％ |
TABLE 2 comparison of assessment results
As can be seen from the results in tables 1 and 2, the electronic cigarette oil obtained by the invention has better smoking mouthfeel than certain brand of electronic cigarettes and certain brand of non-burning cigarettes after being heated in the market. The electronic cigarette oil obtained by the invention has basically the same taste as the traditional cigarette and is very close to the traditional cigarette; the safety of the cigarette is superior to that of the traditional cigarette, and the advantages of the cigarette, the electronic cigarette and the cigarette which are not burnt when being heated are integrated.
The smoke generated by the electronic cigarette oil is compared with the smoke generated by the cigarette of the Honghe brand A in a certain specification in a test, the similarity is over 90 percent, and the two are basically close to each other. The test method is as follows: the total ion flow diagram of two kinds of smoke total particulate matters GC/MS is detected by a 7694E headspace/7890B gas chromatography/5977A mass spectrometer and a gas chromatography/5977A mass spectrometer (Agilent technologies, Inc., USA) under the condition that a chromatographic column is HP-5MS (30m multiplied by 0.25mm multiplied by 0.25um), and the obtained total ion flow diagrams are compared by IMAJI, wherein the similarity is more than 90%.
Example 2:
the same as in example 1. Except that the raw material is shredded tobacco before being flavored in a certain specification B of the Honghe brand. The obtained substance has the same state as that of the substance in the example 1, is used for the electronic cigarette oil, has the same smoking taste as the traditional cigarette, is very close to the traditional cigarette, and has obviously lower cost.
The substances obtained in example 1 and example 2 were used for heating a non-combustible cigarette, and the smoking taste was substantially the same as and very close to that of a conventional cigarette.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A method for trapping substances in flue gas by a high-temperature distillation method is characterized by comprising the following steps: and (3) separating and trapping the smoke gas obtained by heating and distilling the tobacco by using high-temperature gas at the temperature of 400-900 ℃ to obtain the substances in the smoke gas.
2. The method of claim 1, wherein the high temperature gas is a non-oxygen gas or a low oxygen air; the non-oxygen gas is chemically inert gas or organic solvent gas, and the low-oxygen air is air with oxygen content not more than 10 v/v%.
3. The method of claim 2, wherein the chemically inert gas is one or more of carbon dioxide, nitrogen, helium, or water vapor; the organic solvent gas is one or more of propylene glycol, glycerol or ethanol.
4. A method according to claim 1, wherein the tobacco is cut tobacco having a width of 0.8-1.2mm and a moisture content of (10 ± 3) wt%.
5. The method of claim 1, wherein the high temperature gas has a relative tobacco penetration velocity of 0.2m/s to 1.5 m/s.
6. The method of claim 1, wherein flue gas capture is one of solvent absorption, chilled collection, or forced chilled collection.
7. The method according to claim 1, wherein the heated distillation of tobacco is carried out in a distillation apparatus comprising the following components: a distillation chamber (3), a high-temperature gas supply device (6), a smoke extraction device (4) and a feeding device (1);
the distillation chamber (3) is a cross hollow pipe, the upper pipe at the cross point is a tobacco inlet pipeline (31), the top of the cross point is a feeding air lock (2), and the feeding device (1) is arranged above the feeding air lock (2); the lower pipe at the intersection is a waste discharge pipe (34), and the bottom of the lower pipe is a discharge air lock (35); the left pipe at the intersection is a high-temperature gas inlet pipeline (32), and the pipe orifice of the left pipe is connected with a high-temperature gas supply device (6); the right pipe of the cross point is a smoke outlet pipeline (33), and the pipe orifice of the smoke outlet pipeline is connected with a smoke extraction device (4); an interlayer arranged on the outer wall of the smoke exhaust device (4) is a cooling system (5).
8. Method according to claim 7, characterized in that the outfeed airlock (35) is in the form of a spiral sheet.
9. Use of a substance obtained according to the method of any one of claims 1 to 8 as an additive to e-cigarette smoke or to heat non-burning cigarettes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210204518.1A CN114343232A (en) | 2022-03-03 | 2022-03-03 | Method for trapping substances in flue gas by using high-temperature distillation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210204518.1A CN114343232A (en) | 2022-03-03 | 2022-03-03 | Method for trapping substances in flue gas by using high-temperature distillation method |
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Citations (5)
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| CN101721831A (en) * | 2008-10-24 | 2010-06-09 | 天津实发中科百奥工业生物技术有限公司 | Differential pressure type solid continuous distillation process |
| CN204426661U (en) * | 2015-01-29 | 2015-07-01 | 云南中烟工业有限责任公司 | One grows tobacco destructive distillation cut preparation facilities |
| CN104759113A (en) * | 2015-04-10 | 2015-07-08 | 南阳师范学院 | Steam distillation tank for nicotine extraction |
| CN105167170A (en) * | 2015-09-14 | 2015-12-23 | 浙江中烟工业有限责任公司 | Method for preparing electronic cigarette nicotine liquid by means of tobacco subjected to dry distillation pyrolysis |
| CN113717795A (en) * | 2021-09-27 | 2021-11-30 | 南京林业大学 | Novel multifunctional steam distillation-dry distillation integrated equipment |
-
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- 2022-03-03 CN CN202210204518.1A patent/CN114343232A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101721831A (en) * | 2008-10-24 | 2010-06-09 | 天津实发中科百奥工业生物技术有限公司 | Differential pressure type solid continuous distillation process |
| CN204426661U (en) * | 2015-01-29 | 2015-07-01 | 云南中烟工业有限责任公司 | One grows tobacco destructive distillation cut preparation facilities |
| CN104759113A (en) * | 2015-04-10 | 2015-07-08 | 南阳师范学院 | Steam distillation tank for nicotine extraction |
| CN105167170A (en) * | 2015-09-14 | 2015-12-23 | 浙江中烟工业有限责任公司 | Method for preparing electronic cigarette nicotine liquid by means of tobacco subjected to dry distillation pyrolysis |
| CN113717795A (en) * | 2021-09-27 | 2021-11-30 | 南京林业大学 | Novel multifunctional steam distillation-dry distillation integrated equipment |
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