Method for reducing ammonia in mainstream smoke of cigarettes

A cigarette mainstream smoke and cigarette technology, applied in tobacco, tobacco processing, application, etc., can solve the problems of difficult popularization and application, expensive microwave equipment, high processing cost, etc., achieve great economic significance, improve smoking safety and adaptability strong effect

Inactive Publication Date: 2012-07-25
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

This invention uses microwave means to reduce the content of ammonia in the mainstream smoke of cigarettes by changing the process of making shredded cigarettes. Although it has a certain effect on reducing the content of ammonia in the smoke, microwave equipment is expensive a

Method used

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  • Method for reducing ammonia in mainstream smoke of cigarettes
  • Method for reducing ammonia in mainstream smoke of cigarettes
  • Method for reducing ammonia in mainstream smoke of cigarettes

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] According to the steps similar to the above-mentioned Example 1, 3 boxes of re-cured tobacco leaves packed in standard boxes were randomly selected. The length, width, and height of the cartons were 113.6 cm x 72 cm x 72.5 cm, and each box weighed 200 kg. 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. , using Cambridge filters and gas absorption bottles to collect ammonia in the smoke, using a continuous flow analyzer to analyze and measure the ammonia content, using the corresponding unirradiated cigarette samples as a control, and evaluating smoking. The results are shown in Table 2.

[0031] Table 2 Ammonia content and its change in re-cured tobacco before and after irradia...

Embodiment 3

[0034] According to the steps similar to Example 1, 3 boxes of finished cigarettes were randomly taken, the cartons were 47.5cm x 26cm x 59.5cm in length x width x height, each box weighed 15kg, and the quantity was 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. The ammonia in the flue gas was collected by the absorption bottle, and the ammonia content was analyzed and determined by a continuous flow analyzer, and the corresponding unirradiated cigarette sample was used as a control, and the smoking evaluation was carried out. The results are shown in Table 3.

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

[0036]

[0037]It...

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Abstract

The invention discloses a method for reducing ammonia in mainstream smoke of cigarettes, which includes: packing tobacco/finished cigarettes with paper cartons with a stacking thickness of 26-72cm and a stacking density of 0.20-0.34g/cm<3>; placing the cigarette cartons on a conveying device at the conveying speed of 0.02-0.3m/s, and subjecting the cartons to electronic beam/X-ray irradiation generated by an electronic accelerator, wherein the electronic accelerator is 5-10MeV in energy, 0.3-20mA in beam current, 10-20kW in beam power, 100cm in largest scanning width, 5-15Hz in scanning frequency, 1-10kGy in irradiation dose and 5-35 DEG C in set operating temperature; allowing the cartons to pass a scanning widow of the electronic accelerator twice for irradiation, wherein the distance from the center of each carton to the scanning window of the electronic accelerator is 40-60cm in irradiation; and limiting the ambient humidity to be no larger than 60% in operation.

Description

technical field [0001] The invention belongs to the application field of irradiation technology, and also belongs to the technical field of tobacco tar reduction and harm reduction, and relates to the application of electron accelerator irradiation technology in reducing tobacco harm, in particular to an electron accelerator irradiation technology capable of reducing the ammonia content in mainstream smoke of cigarettes. According to 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 s...

Claims

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Application Information

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IPC IPC(8): A24B15/22
Inventor 范家霖郭东权李湘王广山陈云堂吕晓华袁红星杜阅光王娟娟张建伟杨保安
Owner 河南省科学院同位素研究所有限责任公司
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