Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method

A technology of analysis device and analysis method, applied in the direction of measuring device, analysis material, material separation, etc.

Active Publication Date: 2014-07-16
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at this stage, this technology has not been reported in the tobacco industry at home and abroad.

Method used

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  • Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method
  • Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method
  • Analytical method and analytical device for simulating cigarette burning and smoking based on controllable equivalence ratio method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: tobacco sample A is as shown in table 2 through elemental analysis result, and the mass summation of these five kinds of elements of carbon, hydrogen, oxygen, nitrogen, sulfur is 92.314%, after calculation, this tobacco sample of 1g burns fully (carbon is converted into CO 2 , the conversion of hydrogen to H 2 O, nitrogen converted to NO 2 , sulfur is converted to SO 2 ) after the oxygen consumption is 0.03969 mol, which is converted into a volume of 0.9713 liters under ideal conditions (temperature is 25 degrees and pressure is 1 atmosphere), that is, the amount of air consumed when 1 g of the tobacco sample is fully burned is 4.6252 liters. Taking the equivalence ratio as 1.5, we can get

[0053]

[0054] Take 20g of tobacco sample 16 and evenly spread it on an 80cm quartz boat. The advancing speed of the quartz boat is 4cm / min, then the fuel supply speed is 20g÷80cm×4cm / min=1g / min, and the air flow rate is 1g / min÷0.3243g / l=3.08 liters / minute.

...

Embodiment 2

[0056] Embodiment 2: The results of elemental analysis of tobacco sample B are as shown in Table 2. The total sum of these five elements of carbon, hydrogen, oxygen, nitrogen and sulfur is 95.211%. After calculation, 1g of this tobacco sample is fully combusted (carbon conversion for CO 2 , the conversion of hydrogen to H 2 O, nitrogen converted to NO2, sulfur converted to SO2), the oxygen consumption is 0.04203 mol, which is converted into a volume of 1.0285 liters in an ideal state (temperature is 25 ° C, pressure is one atmosphere), that is, 1 g of the tobacco sample is fully The amount of air consumed during combustion is 4.8976 liters. Taking the equivalence ratio as 1.1, we can get

[0057]

[0058] Take 10g of tobacco sample and evenly spread it on an 80cm quartz boat. The advancing speed of the quartz boat is 5cm / min, then the fuel supply speed is 10g÷80cm×5cm / min=0.625g / min, and the air flow rate is 0.625 g / min÷0.2246g / l=2.78 liters / minute.

[0059] Connect the...

Embodiment 3

[0060] Embodiment 3: The elemental analysis results of tobacco sample C are as shown in Table 2. The total sum of these five elements of carbon, hydrogen, oxygen, nitrogen and sulfur is 94.091%. After calculation, 1g of this tobacco sample is fully combusted (carbon conversion for CO 2 , the conversion of hydrogen to H 2 O, nitrogen converted to NO 2 , sulfur is converted to SO 2 ) after the oxygen consumption is 0.04333mol, which is converted into a volume of 1.0604 liters under ideal conditions (temperature is 25°C and pressure is 1 atmosphere), that is, the amount of air consumed when 1g of the tobacco sample is fully burned is 5.0495 liters. Taking the equivalence ratio as 3, we can get

[0061]

[0062] Take 30g of tobacco sample and spread it evenly on the 80cm quartz boat, the speed of the quartz boat is 3cm / min, then the fuel supply speed is 30g÷80cm×3cm / min=1.125g / min, then the air flow rate is 1.125 g / min÷0.5941g / l=1.89 liters / minute.

[0063] Connect the six...

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Abstract

The invention discloses an analytical method and an analytical device for simulating cigarette burning and smoking based on a controllable equivalence ratio method, wherein actual air supply quantity and tobacco sample advancing speed are calculated according to equivalence ratio, then under the condition of the calculated air supply quantity, a sample loader uniformly paved with a tobacco sample is propelled into a tubular furnace with certain temperature according to calculation speed, a six-way valve guides a combustion product to a carbon dioxide analytical system, after the concentration fluctuation is small, a split product is guided to a PTV sample injector by the six-way valve and is condensed and enriched by liquid nitrogen, and after sampling is carried out for a period of time, the six-way valve is connected to the carbon dioxide analytical system; after a sample in the PTV sample injector is subjected to temperature programming and enters a gas chromatography (GC) for separation, a mass spectrum (MS) is adopted for carrying out qualitative and quantitative analysis. Compared with methods for simulating burning and smoking of cigarettes in the prior art, the method disclosed by the invention can accurately simulate the cigarette burning environment, is large in sample loading quantity, does not need preparation of cigarettes for experiment and the like, and can accurately measure chemical components in the smoke.

Description

Technical field: [0001] The invention relates to an analysis method and an analysis device for simulating cigarette burning and smoking based on a controllable equivalent ratio method, and belongs to the technical field of tobacco detection. Background technique: [0002] The quality of cigarettes depends on cigarette smoke, which is mainly produced by distillation and cracking of tobacco and its additives during the smoking process of cigarettes. Therefore, using pyrolysis technology to crack cigarette samples, simulating the smoking process of cigarettes, and analyzing and evaluating the cracked products produced is a widely used experimental method for evaluating the source of smoke components and flavor transfer. [0003] At present, pyrolysis devices commonly used to simulate cigarette burning and smoking mainly include thermogravimetric analyzers and tube furnaces. The temperature rise range of the thermogravimetric analyzer can meet the needs of tobacco research, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02
Inventor 周顺王孝峰何庆张亚平徐迎波
Owner CHINA TOBACCO ANHUI IND CO LTD
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