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Thermogravimetric analysis method used for identifying low-temperature cigarette safe temperature window

A low-temperature cigarette, safe temperature technology, applied in the direction of removing certain components and weighing, etc., can solve problems such as few reports, achieve convenient combined analysis, promote the generation of beneficial components and inhibit the generation of harmful substances, and achieve multi-angle The effect of a comprehensive inspection

Active Publication Date: 2018-09-28
CHINA TOBACCO YUNNAN IND
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  • Application Information

AI Technical Summary

Problems solved by technology

The heating temperature of low-temperature cigarettes has an important impact on smoke components. In order to prevent complex pyrolysis reactions and suppress the generation of harmful smoke components, it is necessary to control the heating temperature within a safe temperature range. However, the identification and analysis methods for the safe temperature window of low-temperature cigarettes but rarely reported

Method used

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  • Thermogravimetric analysis method used for identifying low-temperature cigarette safe temperature window
  • Thermogravimetric analysis method used for identifying low-temperature cigarette safe temperature window
  • Thermogravimetric analysis method used for identifying low-temperature cigarette safe temperature window

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Example: thermal analyzer-droplet continuous micro-extraction-gas chromatography-mass spectrometry analysis to identify the safe temperature window of low-temperature cigarettes.

[0034] Cut tobacco from the front end of low-temperature cigarettes as the experimental sample. Turn on the thermal analyzer, accurately weigh 200 mg of sample in the thermogravimetric crucible, and then close the furnace. The temperature programming conditions are set as follows: heating from 40°C to 500°C at a heating rate of 10°C / min and maintaining for 10 minutes. The carrier gas is dry air with a flow rate of 200mL / min. Connect the thermal analyzer to an automatic droplet continuous micro-extraction device, and the system was equilibrated for 10 minutes in a dry air atmosphere.

[0035] Start the thermal analysis software to start thermogravimetric analysis, pass through dry air for detection, and record the thermal analysis curve, such as figure 1 It is the thermogravimetric (TG), de...

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Abstract

The invention discloses a thermogravimetric analysis method used for identifying a low-temperature cigarette safe temperature window. The method is characterized in that low temperature cigarette is subjected to heating pyrolysis in a thermal gravimetric analyzer to obtain the thermal analysis curve information and escaped component information of the low temperature cigarette, and the informationcan be integrated to identify the safe temperature window of the low-temperature cigarette. The method establishes a thermal chemical reaction model by conjecturing a pyrolysis reaction mechanism ofthe low temperature cigarette and a target flue gas component generation mechanism, the method for promotion of benefit component generation and generation of harmful substance generation can be researched, and a low-temperature cigarette pyrolysis reaction is orderly carried out according to an ideal direction under a controllable state.

Description

technical field [0001] The invention belongs to the technical field of chemical testing and analysis, and in particular relates to a thermogravimetric analysis method for identifying the safe temperature window of low-temperature cigarettes. technical background [0002] Thermal analysis technology is to study various transformations and reactions of materials under temperature program control, such as dehydration, crystallization, melting, evaporation, phase change, thermal decomposition process and reaction kinetics of various inorganic and organic materials, etc. A very important analytical test method. As one of the traditional thermal analysis techniques, thermogravimetric / differential thermal analysis is a thermal method that uses a thermobalance to measure the mass of a substance, the mass increase of heat change, mass loss, or the relationship between heat absorption, heat release, and temperature using a thermobalance. Analytical technology, with the advantages of ...

Claims

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Application Information

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IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 朱文辉杨柳陈永宽杨继梁生龙谭忠明文杰缪明明
Owner CHINA TOBACCO YUNNAN IND
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