CN105661622B - A kind of tobacco juice for electronic smoke raw material and its preparation facilities and method - Google Patents

Abstract

The invention relates to an electronic cigarette liquid with traditional cigarette aroma and a preparation method thereof, including the steps of burning cut tobacco and dry distillation of cut tobacco. The burning of shredded tobacco is carried out at 800-900°C to obtain fully combusted flue gas. The dry distillation of shredded tobacco is carried out at 300-400°C to obtain dry distillation flue gas. The combustion flue gas reacts with the dry distillation flue gas at 300-400°C, and dissolves in organic solvents such as ethyl acetate. The solvent absorption liquid is steamed at -0.09MPa, 27-30°C, and the brown oily extract is obtained, which is the smoke liquid raw material with the aroma characteristics of traditional flue-cured cigarettes. The method of the invention is fully extracted, and the extracted smoke liquid raw material can be used for electronic cigarettes and low-temperature cigarettes, without producing tar, and greatly reducing the poisonous harm caused by smoking to the human body.

Description

Raw material of electronic cigarette smoke liquid and its preparation device and method

technical field

The invention relates to an electronic cigarette smoke liquid raw material with the aroma characteristics of traditional cigarettes and a preparation method thereof.

Background technique

With the change of people's lifestyle and consumption concept, the rapid progress of science and technology and the continuous acceleration of commodity upgrading, the needs and concerns of tobacco consumers are constantly changing. At the same time, affected by factors such as tobacco control and public opinion, traditional cigarettes The development of electronic cigarettes has been more and more restricted, and electronic cigarettes have emerged as the times require.

During the burning process of cigarettes, when the temperature rises to 300°C, the volatile components in the shredded tobacco begin to volatilize and form smoke; when the temperature rises to 450°C, the shredded tobacco begins to coke; when the temperature rises to 600°C, the cigarette is ignited and begins to burn , the aroma characteristics and comprehensive quality of cigarettes can be revealed. When the cigarette burns, the burning end is cone-shaped. When inhaling, most of the air enters from the junction of the combustion cone and the cigarette paper, and a dense carbonized body is formed in the middle of the cone, the airflow is not easy to pass through, and the oxygen content in the center of the cone is very low, so that the combustion is restricted , resulting in incomplete combustion. This incomplete combustion is the direct cause of tar in the flue gas.

Therefore, changing the traditional way of tobacco consumption and developing a new generation of cigarettes is an important way to fundamentally break through the tobacco bottleneck. E-cigarettes are electronic products that mimic cigarettes and have the same look, smoke and feel as cigarettes. It is a product that turns nicotine, etc. into steam by means of atomization, so that smokers can smoke it. However, e-cigarettes do not have the natural aroma and taste of traditional cigarettes, and most smokers are unwilling to accept them.

Contents of the invention

In order to reduce the hazards of tobacco products while maintaining the natural aroma and taste of tobacco, the present invention provides an electronic cigarette liquid raw material having the aroma and taste of traditional flue-cured cigarettes, and a preparation device and method thereof.

A method for preparing electronic cigarette liquid raw materials, the steps are as follows:

(1) Cut tobacco combustion and dry distillation of cut tobacco are carried out simultaneously:

Combustion of shredded tobacco: raise the temperature of the burner to 800-900°C, and keep the temperature constant; add shredded tobacco preheated to 100-400°C, pump in oxygen at the same time, ignite the shredded tobacco quickly, make it burn fully, and generate combustion smoke;

Tobacco dry distillation: raise the temperature of the retort to 300-400°C and keep the temperature constant; add the shredded tobacco to the retort and keep stirring to generate dry distillation fume;

The mass ratio of shredded tobacco used for combustion and dry distillation is 1:3-4;

(2) Flue gas reaction: step (1) when the flue gas starts to be generated, the combustion flue gas is introduced into the retort, and the combustion flue gas and the retort flue gas undergo a chemical reaction;

(3) Flue gas absorption: import the reacted flue gas into an absorption bottle containing an organic solvent, set a negative pressure so that the flue gas is absorbed by the organic solvent, obtain an organic solvent absorption liquid after standing, and filter to remove impurities;

(4) E-liquid concentration: the organic solvent absorption liquid filtered in step (3) is rotary-evaporated to obtain a brown oily extract, which is the raw material of e-cigarette liquid.

The shredded tobacco in the step (1) refers to removing the ribs from the flue-cured tobacco leaves and cutting them into shredded tobacco with a shredder, which is easier to fully burn and dry distillation.

The purpose of preheating the shredded tobacco for combustion in step (1) is to avoid the rapid cooling of the burner after the shredded tobacco is added; the dry distillation temperature is low, so the shredded tobacco used does not need to be preheated.

Step (1) The oxygen pumping amount and pumping speed should ensure that the shredded tobacco is completely and fully burned.

Step (1) The purpose of continuous stirring during dry distillation of shredded tobacco is to make shredded tobacco heated evenly.

Step (1) A stirrer is arranged in the burner to promote full contact of the shredded tobacco with oxygen so as to completely burn it.

The combustion flue gas in step (2) has undergone a violent and complex chemical reaction with the dry distillation flue gas. Terpenes, phytosterols such as stigmasterol, paraffins, sugars, amino acids, cellulose and many Other components form volatile and semi-volatile gases, as well as liquid and solid substances through reactions such as thermal decomposition, thermal synthesis, dry distillation, polymerization, condensation, and free radicals.

In step (3), two absorbing bottles are connected in series to absorb the flue gas, so as to ensure more complete absorption.

In step (3), the organic solvent is one or more of ethyl acetate, ethanol or carbon tetrachloride, preferably ethyl acetate.

Common filter paper is used for filtering in step (3), and impurities such as soot can be removed by filtering.

In the step (4), the rotary steaming parameters are -0.09MPa, 27-30°C.

An electronic cigarette liquid raw material is prepared by the above steps.

An electronic cigarette liquid prepared by using the above-mentioned raw materials, including liquid raw materials, glycerin, propylene glycol and ethanol, the volume ratio is 1:1.5-2.5:1.5-2.5:5-7. Among them, glycerin is used as a nicotine carrier on the one hand, and on the other hand, it is used as a smoking agent to generate smoke during the smoking process of electronic cigarettes. Propylene glycol is an auxiliary smoking agent that enhances the smoking effect of glycerin. Ethanol is used as a diluent.

A device for preparing raw materials for e-cigarette liquid, comprising a burner, a retort, an absorption bottle and a vacuum pump, the burner is connected to the retort, the retort is connected to two absorption bottles connected in series, and the downstream absorption bottle is connected to a vacuum pump.

The beneficial effects of the present invention are: 1) The raw material source of tobacco liquid in this method mainly includes two parts: shredded tobacco combustion and shredded tobacco dry distillation steps, shredded tobacco combustion simulates the high-temperature combustion process of traditional cigarettes, shredded tobacco is fully contacted with oxygen to make it fully burnt, thereby avoiding Incomplete combustion, so no tar is produced; dry distillation of shredded tobacco simulates the dry distillation zone, and the dry distillation smoke fully reacts with the combustion smoke to produce the aroma substances of flue-cured tobacco. 2) The entire production process of this method does not touch water, so the smoke liquid has no peculiar smell caused by smoke contacting water. 3) Ethyl acetate is used for filtering and rotary steaming, and the extraction is sufficient. The extracted smoke liquid raw material can be used for electronic cigarettes and low-temperature cigarettes, without producing tar, and greatly reducing the toxicity caused by smoking to the human body.

Description of drawings

Fig. 1 is a schematic diagram of the connection relationship of the preparation device of the e-cigarette liquid raw material of the present invention.

Detailed ways

The present invention will be described in further detail below in conjunction with specific embodiments.

As shown in FIG. 1 , in the device for preparing e-cigarette liquid raw materials of the present invention, the burner is connected to a retort, the retort is connected to two absorbing bottles connected in series, and the downstream absorbing bottle is connected to a vacuum pump.

Example 1

A kind of preparation of electronic cigarette smoke liquid raw material with traditional cigarette aroma characteristics, the steps are as follows:

Heat the three-necked round bottle (burner) equipped with a stirrer with an electric heating mantle, and stir with an electric stirrer at the same time to heat the temperature inside the bottle to 800°C and keep the temperature constant; slowly add 50 grams of shredded tobacco preheated to 200°C from the mouth of the bottle (The amount of shredded tobacco should be agitated by the stirrer and the shredded tobacco can be flexibly rotated to keep the continuous stirring state), and a sufficient amount of oxygen is introduced to make the shredded tobacco fully burnt, and the igniter is activated instantaneously to make the shredded tobacco burn quickly and generate combustion smoke. Turn on the vacuum pump to promote the combustion flue gas into the retort.

At the same time, heat the retort to 320°C; slowly add 170 grams of shredded tobacco into the retort, and continue to stir to make it evenly heated, at a constant temperature of 320°C, to generate retort smoke; dry distillation flue gas and high-temperature combustion smoke from the burner gas chemical reaction.

Two series-connected absorption bottles are filled with ethyl acetate; under the condition of negative pressure, the flue gas from the chemical reaction in the retort (including the combustion flue gas and dry distillation flue gas that will not react in the future) enters the two absorption bottles in sequence, And make it absorbed by the organic solvent; stop heating when there is no smoke in the three-neck round bottle and the dry distillation device, and turn off the vacuum pump.

Shake the ethyl acetate absorption solution and let stand to obtain the ethyl acetate absorption solution; filter the absorption solution with filter paper to remove impurities. The filtered ethyl acetate absorption solution is rotary steamed at -0.09MPa, 28°C, and the brown oily extract is obtained, which is the raw material of e-cigarette liquid with the aroma characteristics of traditional flue-cured cigarettes.

Mix the above-mentioned e-cigarette liquid raw materials with glycerin, propylene glycol, and ethanol in a ratio of 1:2:2:6 (volume ratio), add them into the e-cigarette cartridge, and make an e-cigarette. Five professionals were invited to conduct a blind evaluation of the above-mentioned e-cigarettes, conventional e-cigarettes and traditional cigarettes, that is, without informing the professionals of the composition of the e-liquid contained in the e-cigarettes, they were invited to conduct a comparative evaluation. In the end, all professionals confirmed that the e-cigarettes made of e-liquid raw materials produced by this patented technology have aroma characteristics and taste similar to traditional cigarettes. In addition, some components of the above-mentioned electronic cigarettes, conventional electronic cigarettes and traditional cigarettes were tested, as shown in the following table:

Table 1 Comparison of evaluation and smoking of electronic cigarettes of the present invention, conventional electronic cigarettes and traditional cigarettes

Smoke nicotine (mg/stick) Smoke tar (mg/stick) aroma characteristics taste traditional cigarettes 1.00 11.00 it is good it is good Smoke liquid of the present invention 0.95 0 better better conventional e-cigarettes 0.90 0 poor poor

Example 2

A kind of preparation of electronic cigarette smoke liquid raw material with traditional cigarette aroma characteristics, the steps are as follows:

Heat the three-necked round bottle (burner) equipped with a stirrer with an electric heating mantle, and stir with an electric stirrer at the same time, heat the temperature inside the bottle to 900°C and keep the temperature constant; slowly add 50 grams of shredded tobacco preheated to 400°C from the mouth of the bottle (The amount of shredded tobacco should be agitated by the stirrer and the shredded tobacco can be flexibly rotated to keep the continuous stirring state), and a sufficient amount of oxygen is introduced to make the shredded tobacco fully burnt, and the igniter is activated instantaneously to make the shredded tobacco burn quickly and generate combustion smoke. Turn on the vacuum pump to promote the combustion flue gas into the retort.

At the same time, heat the retort to 400°C; slowly add 200 grams of shredded tobacco into the retort, and keep stirring to make it evenly heated, and keep the temperature at 400°C to generate retort smoke; dry distillation flue gas and high-temperature combustion smoke from the burner gas chemical reaction.

Two series-connected absorption bottles are filled with ethyl acetate; under the condition of negative pressure, the flue gas from the chemical reaction in the retort (including the combustion flue gas and dry distillation flue gas that will not react in the future) enters the two absorption bottles in sequence, And make it absorbed by the organic solvent; stop heating when there is no smoke in the three-neck round bottle and the dry distillation device, and turn off the vacuum pump.

Shake the ethyl acetate absorption solution and let stand to obtain the ethyl acetate absorption solution; filter the absorption solution with filter paper to remove impurities. The filtered ethyl acetate absorption solution is rotary steamed at -0.09MPa, 27°C, and the brown oily extract is obtained, which is the raw material of e-cigarette liquid with the aroma characteristics of traditional flue-cured cigarettes.

Mix the above-mentioned e-cigarette liquid raw materials with glycerin, propylene glycol, and ethanol in a ratio of 1:2.5:1.5:7 (volume ratio), add them into the e-cigarette cartridge, and make an e-cigarette. Five professionals were invited to compare and evaluate the above-mentioned e-cigarettes, conventional e-cigarettes and traditional cigarettes. All professionals confirmed that the e-cigarettes made of e-cigarette liquid raw materials produced by this patented technology have similar aroma characteristics to traditional cigarettes and delicious. In addition, some components of the above-mentioned electronic cigarettes, conventional electronic cigarettes and traditional cigarettes were tested, as shown in the following table:

Table 2 Evaluation and smoking comparison of electronic cigarettes of the present invention, conventional electronic cigarettes and traditional cigarettes

Smoke nicotine (mg/stick) Smoke tar (mg/stick) Aroma of flue-cured tobacco taste traditional cigarettes 1.00 11.00 it is good it is good Smoke liquid of the present invention 0.90 0 better better conventional e-cigarettes 0.90 0 poor poor

Example 3

A kind of preparation of electronic cigarette smoke liquid raw material with traditional cigarette aroma characteristics, the steps are as follows:

Heat the three-neck round bottle (burner) equipped with a stirrer with an electric heating mantle, and stir with an electric stirrer at the same time, heat the temperature inside the bottle to 850°C and keep the temperature constant; slowly add 50 grams of cut tobacco preheated to 300°C from the mouth of the bottle (The amount of shredded tobacco should be agitated by the stirrer and the shredded tobacco can be flexibly rotated to keep the continuous stirring state), and a sufficient amount of oxygen is introduced to make the shredded tobacco fully burnt, and the igniter is activated instantaneously to make the shredded tobacco burn quickly and generate combustion smoke. Turn on the vacuum pump to promote the combustion flue gas into the retort.

At the same time, heat the temperature of the retort to 360°C; slowly add 150 grams of shredded tobacco into the retort, and continue to stir to make it evenly heated, with a constant temperature of 360°C, to generate dry distillation smoke; dry distillation smoke and high-temperature combustion smoke from the burner gas chemical reaction.

Two series-connected absorption bottles are filled with ethyl acetate; under the condition of negative pressure, the flue gas from the chemical reaction in the retort (including the combustion flue gas and dry distillation flue gas that will not react in the future) enters the two absorption bottles in sequence, And make it absorbed by the organic solvent; stop heating when there is no smoke in the three-neck round bottle and the dry distillation device, and turn off the vacuum pump.

Shake the ethyl acetate absorption solution and let stand to obtain the ethyl acetate absorption solution; filter the absorption solution with filter paper to remove impurities. The filtered ethyl acetate absorption solution is rotary steamed at -0.09MPa, 30°C, and the brown oily extract is obtained, which is the raw material of e-cigarette liquid with the aroma characteristics of traditional flue-cured cigarettes.

Mix the above-mentioned e-cigarette liquid raw materials with glycerin, propylene glycol, and ethanol in a ratio of 1:1.5:2.5:5 (volume ratio), add them into the e-cigarette cartridge, and make an e-cigarette. Five professionals were invited to compare and evaluate the above-mentioned e-cigarettes, conventional e-cigarettes and traditional cigarettes. All professionals confirmed that the e-cigarettes made of e-cigarette liquid raw materials produced by this patented technology have similar aroma characteristics to traditional cigarettes and delicious. In addition, some components of the above-mentioned electronic cigarettes, conventional electronic cigarettes and traditional cigarettes were tested, as shown in the following table:

Table 3 Evaluation and smoking comparison of electronic cigarettes of the present invention, conventional electronic cigarettes and traditional cigarettes

Smoke nicotine (mg/stick) Smoke tar (mg/stick) Aroma of flue-cured tobacco taste traditional cigarettes 1.00 11.00 it is good it is good Smoke liquid of the present invention 0.96 0 better better conventional e-cigarettes 0.90 0 poor poor

Claims (10)

1. A preparation method for electronic cigarette smoke liquid raw material, is characterized in that, the steps are as follows: (1) Cut tobacco combustion and dry distillation of cut tobacco are carried out simultaneously: Combustion of shredded tobacco: raise the temperature of the burner to 800-900°C, and keep the temperature constant; add shredded tobacco preheated to 100-400°C, pump in oxygen at the same time, ignite the shredded tobacco quickly, make it burn fully, and generate combustion smoke; Tobacco dry distillation: raise the temperature of the retort to 300-400°C and keep the temperature constant; add the shredded tobacco to the retort and keep stirring to generate dry distillation fume; The mass ratio of shredded tobacco used for combustion and dry distillation is 1:3-4; (2) Flue gas reaction: step (1) when the flue gas starts to be generated, the combustion flue gas is introduced into the retort, and the combustion flue gas and the retort flue gas undergo a chemical reaction; (3) Flue gas absorption: import the reacted flue gas into an absorption bottle containing an organic solvent, set a negative pressure so that the flue gas is absorbed by the organic solvent, obtain an organic solvent absorption liquid after standing, and filter to remove impurities; (4) E-liquid concentration: the organic solvent absorption liquid filtered in step (3) is rotary-evaporated to obtain a brown oily extract, which is the raw material of e-cigarette liquid. 2. The method for preparing raw materials of e-cigarette liquid according to claim 1, characterized in that the shredded tobacco in the step (1) refers to removing tendons from flue-cured tobacco leaves and cutting them into shredded tobacco with a shredder. 3. The method for preparing raw materials of e-cigarette liquid according to claim 1, characterized in that, in step (1), the amount and speed of oxygen pumping should ensure that the cut tobacco is fully burned. 4. The method for preparing raw materials of e-cigarette liquid according to claim 1, characterized in that, in step (1), the burner is provided with a stirrer. 5. The method for preparing electronic cigarette liquid raw materials according to claim 1, characterized in that the organic solvent in step (3) is one or more of ethyl acetate, ethanol or carbon tetrachloride. 6. The method for preparing raw materials of e-cigarette liquid according to claim 1, characterized in that ordinary filter paper is used for filtering in step (3). 7. The method for preparing raw materials of e-cigarette liquid according to claim 1, characterized in that, in the step (4), the parameters of rotary steaming are -0.09MPa, 27-30°C. 8. A raw material for e-cigarette liquid, characterized in that it is prepared by the method of any one of claims 1-7. 9. An electronic cigarette liquid prepared by using the raw material of claim 8, comprising liquid raw material, glycerin, propylene glycol and ethanol, in a volume ratio of 1:1.5-2.5:1.5-2.5:5-7. 10. A preparation device for the preparation method of the e-cigarette liquid raw material according to claim 1, characterized in that it comprises a burner, a retort, an absorption bottle and a vacuum pump, the burner is connected with the retort, and the retort The device is connected to two absorption bottles connected in series, and the downstream absorption bottle is connected to a vacuum pump.