Tobacco pyrolysis combustion reactor, analysis system and method

A combustion analysis and reactor technology, which is applied in the tobacco industry, can solve the problems of low cut tobacco volume and poor repeatability of experimental data, and achieve the effects of high heating rate, controllable reaction atmosphere, and controllable flow rate.

Active Publication Date: 2017-01-25
CHINA TOBACCO FUJIAN IND +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method puts the research emphasis on the process of tobacco combustion, and can control conditions such as reaction atmosphere, reaction temperature and residence time, but the amount of shredded tobacco that these thermal analyzers or pyrolysis instruments can load is extremely low, generally between 5- Within the range of 20mg, such a low usage of shredded tobacco will inevitably lead to poor repeatability of experimental data, and this method only analyzes and detects many smoke components generated by GC-MS, which is different from actual smoke in the tobacco industry. There are different test methods for gas components and harmful components, which are not consistent

Method used

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  • Tobacco pyrolysis combustion reactor, analysis system and method
  • Tobacco pyrolysis combustion reactor, analysis system and method
  • Tobacco pyrolysis combustion reactor, analysis system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Embodiment 1: Tar release experiment

[0080] Put 4 pieces of flue-cured tobacco shreds with a weight of 1g into the quartz glass tube of the tobacco pyrolysis combustion reactor respectively, pass air in, the flow rate is 2000mL / min, and the temperature is raised to 330°C-350°C at a rate of 20°C / s , 430°C-460°C, 525°C-555°C and 630°C-650°C, all burned for 10 minutes, and measured according to the national standard GB / T 19609-2004 "Determination of total particulate matter and tar by smoking machine for routine analysis of cigarettes" Obtain the tar release amount of flue-cured tobacco shredded tobacco burned at the above-mentioned temperature in the air.

Embodiment 2

[0085] Embodiment 2: fragrance component release experiment

[0086] Put 2 parts of flue-cured tobacco shreds with a weight of 1g into the quartz glass tube of the tobacco pyrolysis combustion reactor respectively, pass air in, the flow rate is 2000mL / min, and the temperature is raised from room temperature to 430°C at a rate of 20°C / s. -460°C and 525°C-555°C, burn for 10 minutes to end the reaction. Fold the Cambridge filter and put it into a flat-bottomed flask, then add 50mL of dichloromethane and 100μL of 50mg / mL internal standard solution of phenylethyl acetate to soak for 15min, seal it and ultrasonicate for 30min at room temperature, let it stand for 5min, and filter through a micropore After membrane filtration, it was concentrated to 1 mL, analyzed by gas chromatography-mass spectrometry, and calculated by internal standard method to obtain the aroma components of flue-cured tobacco shredded tobacco burning in air: acetic acid, oleic acid, linoleic acid, palmitic ac...

Embodiment 3

[0090] Embodiment 3: CO release experiment

[0091] Put 1g of flue-cured tobacco shreds, expanded shredded tobacco, shredded stems and thin slices into the quartz glass tube of the tobacco pyrolysis combustion reactor respectively, and feed 2% (volume percentage) O 2 -98% (volume percent) of N 2 , the flow rate is 2000mL / min, and the temperature is raised to 250°C at a rate of 20°C / s for combustion. After burning for 10 minutes, the IR infrared sensor (detection range 0-20000ppm) of the flue gas analysis device is used to detect flue-cured tobacco shreds, expanded shredded tobacco, and shredded stems. and flakes at 2% (volume percent) O 2 -98% (volume percent) of N 2 The amount of CO released by combustion at 250°C.

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Abstract

The invention belongs to the field of tobacco industry and relates to a tobacco pyrolysis and combustion reactor, an analysis system and a method. The tobacco pyrolysis and combustion reactor, the analysis system and the method have the benefits that the fast pyrolysis and combustion reaction of a lot of tobacco shreds under different atmosphere and different temperature conditions can be realized, and the online detection can be carried out on gas phase components like CO, CO2, O2 and H2 in flue gas; meanwhile, a Cambridge filter is used for collecting particle phase components, so that the generation situations of moisture, tar, nicotine, aroma components and / or other harmful components (NH3, HCN, phenol, crotonaldehyde, polycyclic aromatic hydrocarbon, benzopyrene and the like) can be obtained. Through the analysis system, an experimental platform is provided for the mechanism study on the generation of main flue gas components in the tobacco pyrolysis and combustion processes.

Description

technical field [0001] The invention belongs to the field of tobacco industry and relates to a tobacco pyrolysis combustion reactor, analysis system and method. Background technique [0002] Systematic and in-depth research on the main smoke components (moisture, tar, nicotine and aroma components) and harmful components (CO, NH 3 , HCN, phenol, crotonaldehyde, condensed ring aromatics and benzopyrene, etc.), has important guiding significance for the development of tobacco industry harm reduction and coke reduction and flavor enhancement and moisturizing technology, for example, it is conducive to the development of low coke, low harmful tobacco products, and / or improve the aroma of tobacco products. [0003] At present, the tobacco industry is mainly testing moisture, tar, nicotine, aroma components and seven harmful components in tobacco combustion on linear smoking machines or rotary smoking machines, so that different grades of tobacco (different origins, different par...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N31/12A24F47/00
Inventor 陈晓东谢卫李巧灵黄朝章许寒春张建平苏明亮邓其馨吴清辉李军廖振锴
Owner CHINA TOBACCO FUJIAN IND
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