CN102894471A - Method for reducing releasing amount of harmful ingredients in reconstituted tobacco smoke - Google Patents

Abstract

The invention discloses a method for reducing the release of harmful components in the flue gas of reconstituted tobacco leaves. During the production process of reconstituted tobacco leaves, potassium sodium tartrate, potassium citrate, nanometer titanium dioxide powder, nanometer titanium dioxide liquid and zeolite molecular sieve are added to the concentrated liquid; Adding nano titanium dioxide powder, nano titanium dioxide liquid and zeolite molecular sieve into the slurry. The harm reduction additive added in the present invention is more uniform, the harm reduction effect is better, and the addition is easier, the operation is simpler, no dust and loss will be formed, and no damage will be caused to the environment and human health. The reconstituted tobacco leaves treated by the present invention The release of seven harmful components in the smoke was significantly reduced, and the hazard index dropped from 7.0 to 5.6-6.1.

Description

A method for reducing the release of harmful components in reconstituted tobacco smoke

technical field

The invention belongs to the technical field of reconstituted tobacco leaves of cigarettes, and in particular relates to a method for reducing the release of harmful components in the smoke of reconstituted tobacco leaves.

Background technique

Cigarette harm and coke reduction is a hot research topic in the tobacco industry. In 2008, the Opinions of the State Tobacco Monopoly Administration on Further Promoting Cigarette Harm Reduction and Coke Reduction (Guoyanke [2008] No. 471) included CO, HCN, NNK, NH ₃ , and benzo[a]pyrene in cigarette smoke. , phenol, and crotonaldehyde as the direction and main task of harm reduction in Chinese-style cigarettes.

In recent years, the level of R&D, production and application of domestic reconstituted tobacco has developed rapidly, and the scope and proportion of reconstituted tobacco products used in cigarette brands has continued to expand. It has played a good role, but the development of harm reduction technology for reconstituted tobacco lags behind, especially reducing the release of seven harmful components.

At present, the technology to reduce the release of harmful components is more applied to cigarettes. Foreign methods to reduce nitrosamines (TSNAs) include the oven-cured tobacco leaf method of Reynolds Company of the United States and the killing of nitrosamines produced by Xingke Company. Bacterial methods, etc. Reynolds Company of the United States has developed a tobacco leaf modulation technology that uses a heat exchanger instead of directly using TSNAs in oven-cured tobacco leaves, which can reduce the content of TSNAs in flue-cured tobacco by at least 80%. Domestic Dai Ya and others added hemoglobin to the mouth stick, which can effectively remove NO, NOx, carcinogenic nitroso compounds, free radicals, aldehydes, CO, trace elements, etc. The interception of harmful components in the air reaches an average of more than 50%.

Wang Ying and others invented a cigarette additive that can reduce the content of nitrosamines in cigarette smoke. The additive is mainly composed of alginate suspension solution containing porous materials. The content is reduced by 17% to 65%. However, there are a series of problems in spraying harm-reducing additives in shredded tobacco, such as difficulty in external application, uneven distribution, and inconspicuous effect. Due to the formation of dust during the spraying process, it is easy to be lost during processing or storage, and it will also cause environmental protection. problems and damage to human health.

The reconstituted tobacco leaves are obtained by extracting the raw tobacco stems and tobacco powder and then separating the solid from the liquid. The solids are pulped into a slurry and then made into a paper base. Since the reconstituted tobacco leaf production process has steps of making liquid-phase slurry and concentrate, harm-reducing additives can be added to the slurry and concentrate.

Contents of the invention

The purpose of the present invention is to provide a method for reducing the release of harmful components in the smoke of reconstituted tobacco leaves, to solve the problems in the prior art that the application effect of harm reduction additives is not obvious, and to effectively reduce the release of harmful components in the smoke of reconstituted tobacco leaves.

The above-mentioned purpose is achieved through the following technical solutions:

A method for reducing the release of harmful components in the smoke of reconstituted tobacco leaves, characterized in that: in the production process of reconstituted tobacco leaves, potassium sodium tartrate is added according to 0.1‰-1‰ of the concentrated liquid quality, and according to 0.2‰-0.8‰ of the concentrated liquid quality Add potassium citrate, add nano-titanium dioxide powder according to 0.1‰-0.5‰ of the concentrated liquid quality, add nano-titanium dioxide liquid according to 0.1‰-0.6‰ of the concentrated liquid quality, and add zeolite molecular sieve according to 0.1‰-0.8‰ of the concentrated liquid quality; Add nano-titanium dioxide powder according to 0.1‰-0.5‰ of the dry mass of the slurry, add nano-titanium dioxide liquid according to 0.1‰-0.6‰ of the dry mass of the slurry, and add zeolite molecular sieve according to 0.1‰-0.8‰ of the dry mass of the slurry .

Preferably, potassium sodium tartrate is added according to 1‰ of the quality of the concentrated solution, potassium citrate is added according to 0.3‰ of the quality of the concentrated solution, nano-titanium dioxide powder is added according to 0.1‰ of the quality of the concentrated solution, and nano-titanium dioxide is added according to 0.1‰ of the quality of the concentrated solution Liquid, add zeolite molecular sieve according to 0.8‰ of the mass of the concentrated solution; add nano-titanium dioxide powder according to 0.5‰ of the dry mass of the slurry, add nano-titanium dioxide liquid according to 0.1‰ of the dry mass of the slurry, and add nano-titanium dioxide liquid according to 0.1‰ of the dry mass of the slurry ‰ add zeolite molecular sieve.

The mass concentration of the nano titanium dioxide liquid is 8-15%.

Preferably, the mass concentration of the nano titanium dioxide liquid is 10%.

The beneficial effects of the present invention are:

The invention utilizes the particularity of the preparation process of reconstituted tobacco leaves. Compared with spraying the harm-reducing additives into the shredded tobacco, adding them to the liquid-phase slurry and concentrated liquid will be more uniform, the harm-reducing effect is better, and the addition is easier and easier to operate. It is simpler, will not form dust and loss, and will not cause damage to the environment and human health. The release amount of seven harmful components in the smoke of the reconstituted tobacco leaves treated by the invention is significantly reduced, and the hazard index is reduced from 7.0 to 5.6-6.1.

Detailed ways

Below in conjunction with embodiment the present invention is described in further detail.

Example 1-4

A method for reducing the release of harmful components in the smoke of reconstituted tobacco leaves. During the production process of reconstituted tobacco leaves, the following substances are added to the concentrate and slurry according to Table 1:

Table 1 The additive consumption table of embodiment 1-4

Both the nano-titanium dioxide powder and the nano-titanium dioxide liquid are purchased through commercial channels, and the product models are VK-TG01 and VK-TG02 respectively.

After preparing samples from the above four examples and blank samples, the release of seven harmful components was tested, and the results are shown in Table 2.

Table 2 Test results of release of seven harmful components

blank sample example 1 Example 2 Example 3 Example 4 NNK (ng/branch) 5.30 4.16 5.12 4.23 4.56 NH ₃ (μg/branch) 4.80 4.51 3.89 4.03 3.98 CO (mg/support) 15.94 15.2 13.8 14.8 14.1 Crotonaldehyde (μg/bottle) 20.36 18.5 16.8 17.4 17.8 Phenol (μg/cartridge) 2.83 2.47 2.32 2.71 2.35 Hydrocyanic acid (μg/branch) 88.7 63.5 46.5 69.7 49.8 Benzopyrene (ng/branch) 3.7 3.2 2.2 2.4 2.6 Hazard index 7.0 6.1 5.6 5.9 5.7

It can be seen from the above table that compared with the blank sample, the release of seven harmful components in the smoke of reconstituted tobacco leaves treated with this technology is significantly reduced, and the hazard index is reduced from 7.0 to 5.6-6.1.

Claims (4)

1. method that reduces reconstituted tobacco harmful ingredients in flue gas burst size, it is characterized in that: in the reconstituted tobacco production process, add sodium potassium tartrate tetrahydrate according to 0.1 ‰ of concentrate quality-1 ‰, add potassium citrate according to 0.2 ‰ of concentrate quality-0.8 ‰, add nano-titanium dioxide powder according to 0.1 ‰ of concentrate quality-0.5 ‰, add nano titanium oxide liquid according to 0.1 ‰ of concentrate quality-0.6 ‰, add zeolite molecular sieve according to 0.1 ‰ of concentrate quality-0.8 ‰; Add nano-titanium dioxide powder according to 0.1 ‰-0.5 ‰ of slurry over dry quality, add nano titanium oxide liquid according to 0.1 ‰-0.6 ‰ of slurry over dry quality, add zeolite molecular sieve according to 0.1 ‰-0.8 ‰ of slurry over dry quality.

2. the method for reduction reconstituted tobacco harmful ingredients in flue gas burst size as claimed in claim 1, it is characterized in that: add sodium potassium tartrate tetrahydrate according to 1 ‰ of concentrate quality, add potassium citrate according to 0.3 ‰ of concentrate quality, add nano-titanium dioxide powder according to 0.1 ‰ of concentrate quality, add nano titanium oxide liquid according to 0.1 ‰ of concentrate quality, add zeolite molecular sieve according to 0.8 ‰ of concentrate quality; Add nano-titanium dioxide powder according to 0.5 ‰ of slurry over dry quality, add nano titanium oxide liquid according to 0.1 ‰ of slurry over dry quality, add zeolite molecular sieve according to 0.1 ‰ of slurry over dry quality.

3. the method for reduction reconstituted tobacco harmful ingredients in flue gas burst size as claimed in claim 1 or 2, it is characterized in that: the mass concentration of described nano titanium oxide liquid is 8-15%.

4. the method for reduction reconstituted tobacco harmful ingredients in flue gas burst size as claimed in claim 3, it is characterized in that: the mass concentration of described nano titanium oxide liquid is 10%.