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Method for reducing hydrocyanic acid in mainstream smoke of cigarette

A technology of cigarette mainstream smoke and hydrocyanic acid, applied in tobacco, tobacco treatment, application, etc., can solve the problems of no prospect of popularization and application, expensive adsorbent, expensive catalyst, etc., to improve smoking safety, major Economic significance, effect of reducing hydrocyanic acid

Inactive Publication Date: 2012-07-18
河南省科学院同位素研究所有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adsorption method has many disadvantages. While the adsorbent effectively filters the gas phase components of the smoke, it changes the taste of the cigarette and affects the taste of the smoker; the adsorbent is expensive and the production cost is high; it may also bring greater harm to the cigarette. Toxicity etc.
The catalytic temperature of the chemical catalytic oxidation method is relatively high (250-450°C), the required catalyst is expensive, the production cost is high, and there is no prospect of popularization and application
Therefore, these treatment measures do not have ideal selectivity, it is necessary to develop a method for reducing hydrocyanic acid in cigarette smoke

Method used

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  • Method for reducing hydrocyanic acid in mainstream smoke of cigarette
  • Method for reducing hydrocyanic acid in mainstream smoke of cigarette
  • Method for reducing hydrocyanic acid in mainstream smoke of cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Randomly take 150kg of first-cured tobacco leaves, pack each 50kg into a box, a total of 3 boxes, and pack them in a corrugated box with a length x width x height of 70cm x 60cm x 50cm. The stacking thickness of the tobacco leaves in the carton is 26-72cm. 0.20~0.34g / cm 3 ;Place the packaged tobacco leaves on the conveying device with a conveying speed of 0.02-0.3m / s; the tobacco leaves placed on the conveying device are irradiated with electron beam / X-rays generated by an electron accelerator, and the energy of the electron accelerator is 5-10MeV , the beam current is 0.3-20mA, the beam power is 10-20kW, the maximum scanning width is 100cm, the scanning frequency is 5-15Hz, the irradiation dose is 1kGy, the way of secondary irradiation is adopted, and the tobacco leaves are transported through the conveying device twice. The scanning window of the electron accelerator is irradiated, and half of the radiation dose is received at a time. After the first irradiation, the ...

Embodiment 2

[0030] Randomly take 3 boxes of re-cured tobacco leaves packed in standard boxes, the carton length x width x height is 113.6cm x 72cm x 72.5cm, and each box weighs 200kg. Use 5kGy dose of X-rays for irradiation treatment. After irradiation, the tobacco leaves are rolled by a cigarette rolling machine, and 40 cigarettes that meet the measurement requirements are randomly selected. According to the standard conditions stipulated in GB / T 19609-2004, a smoking machine is used to simulate the state of human smoking. , use Cambridge filter and gas absorption bottle to collect hydrocyanic acid in smoke, use continuous flow analyzer to analyze and measure the content of hydrocyanic acid, and use the corresponding unirradiated cigarette sample as a control, and conduct smoking evaluation. The results are shown in Table 2.

[0031] Table 2 Hydrocyanic acid content and its change in re-cured tobacco before and after irradiation

[0032]

Embodiment 3

[0034] Take 3 boxes of finished cigarettes at random, the carton length x width x height is 47.5cm x 26cm x 59.5cm, each box weighs 15kg, and the quantity is 50. The electron beam with a dose of 10kGy is used for irradiation treatment. After irradiation, 40 cigarettes that meet the measurement requirements are randomly selected. According to the standard conditions stipulated in GB / T 19609-2004, a smoking machine is used to simulate the state of human smoking, and Cambridge filters and gas are used. Hydrocyanic acid in the flue gas was collected by the absorption bottle, and the content of hydrocyanic acid was analyzed and determined by a continuous flow analyzer, and the corresponding unirradiated cigarette samples were used as a control, and the smoking evaluation was carried out. The results are shown in Table 3.

[0035] Table 3 Hydrocyanic acid content and its changes in finished cigarettes before and after irradiation

[0036]

[0037] As can be seen from Tables 1 to 3...

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Abstract

The invention discloses a method for reducing hydrocyanic acid in mainstream smoke of a cigarette. The method comprises the steps of: packaging tobacco leaves / finished cigarettes with a carton, wherein the stacking thickness of the tobacco leaves / finished cigarettes is 26-72cm and the stacking density of the tobacco leaves / finished cigarettes is 0.20-0.34g / cm<3>; and placing the cigarette carton on a transmitting device with the transmitting speed of 0.02-0.3m / s, and subjecting the cigarette carton to irradiation of electron beams / X-rays produced by an electronic accelerator, wherein the energy of the electronic accelerator is 5-10meV, the beam current is 0.3-20mA, the beam power is 10-20kW, the maximal scanning width is 100cm, the scanning frequency is 5-15Hz, the irradiation dose is 1-10kGy, the work temperature is set to be 5-35 DEG C, the cigarette carton is irradiated by passing through a scanning window of the electronic accelerator twice, the distance from the center of the cigarette carton to the scanning window of the electronic accelerator is 40-60cm during irradiation, and the ambient humidity is limited to be not more than 60% during working.

Description

technical field [0001] The invention belongs to the application field of irradiation technology, and also belongs to the field of tobacco tar reduction and harm reduction technology, and relates to the application of electron accelerator irradiation technology in reducing tobacco harm, especially an electronic device capable of reducing the content of hydrocyanic acid in mainstream smoke of cigarettes. Accelerator irradiation processing technology. Background technique [0002] Tobacco is one of the important economic crops in our country and occupies an important position in the national economy. At present, there are 1.1 billion smokers in the world, and there are more than 300 million in China. Smoking has become a social group behavior. As early as the 1930s, it was suggested that smoking is harmful to health. In particular, the Royal Society of Medicine in 1950 and the US Medical Administration in 1964 officially published a report on the relationship between smoking a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B15/22
Inventor 陈云堂吕晓华郭东权杨保安蔡恒范家霖袁红星杜阅光王娟娟张建伟李湘张志坚田占军刘江豫徐世臻
Owner 河南省科学院同位素研究所有限责任公司
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