A thermogravimetric analysis method for identifying the safe temperature window of low-temperature cigarettes

A technology of low-temperature cigarettes and safe temperature, which is applied in the direction of weighing by removing certain components, can solve problems such as few reports, and achieve the effects of convenient joint analysis, promoting the formation of beneficial components and inhibiting the production of harmful substances

Active Publication Date: 2020-09-15
CHINA TOBACCO YUNNAN IND
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  • Claims
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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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  • A thermogravimetric analysis method for identifying the safe temperature window of low-temperature cigarettes
  • A thermogravimetric analysis method for identifying the safe temperature window of low-temperature cigarettes
  • A thermogravimetric analysis method for identifying the safe temperature window of low-temperature cigarettes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Example: Thermal analyzer-droplet continuous microextraction-gas chromatography-mass spectrometry combined analysis to identify the safe temperature window of low-temperature cigarettes.

[0035] The cut tobacco at the front end of the low-temperature cigarette was cut as an experimental sample. Turn on the thermal analyzer, accurately weigh the 200 mg sample in the thermogravimetric crucible, and then close the furnace body. Set the temperature program conditions as follows: heating from 40°C to 500°C at a temperature rise rate of 10°C / min and holding for 10 minutes. The carrier gas is dry air with a flow rate of 200 mL / min. Connect the thermal analyzer to the automatic droplet continuous micro-extraction device, and equilibrate the system for 10 minutes in a dry air atmosphere.

[0036] Start the thermal analysis software to start the thermal gravimetric analysis, pass dry air for testing, and record the thermal analysis curve, such as figure 1 It is the thermogravimetry...

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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 test analysis, and specifically relates to a thermogravimetric analysis method for identifying a safe temperature window for low-temperature cigarettes. [0002] technical background [0003] Thermal analysis technology is to study the various transformations and reactions of materials under the control of temperature programs, such as dehydration, crystallization, melting, evaporation, phase change, and the thermal decomposition process and reaction kinetics of various inorganic and organic materials. A very important method of analysis and testing. As a kind of traditional thermal analysis technology, the thermogravimetric / differential thermal analysis method uses a thermobalance to measure the mass of the substance, the increase in the mass of the heat change, the mass loss or endothermic heat, the heat release and the temperature relationship under the program control temperature. Analysis technolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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