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
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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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