Tobacco aerobic cracking analysis method and sample injection system

Abstract

The invention discloses a tobacco aerobic cracking analysis method, comprising the following steps: firstly placing the tobacco sample on the cracking pool of the cracker, and simultaneously introducing a mixing gas containing O2 and N2 to the cracking pool for sweeping, wherein the sweeping gas brings the tobacco sample cracking product to a cold well, the cold well keeps at -80 DEG C to -60 DEG C, the tobacco sample cracking product is condensed and captured by the cold well, and the extra gas is shunted; after the tobacco sample is cracked completely, introducing the inertia gas to the cold well; while raising the temperature in the cold well, bringing the tobacco sample cracking product captured by the cold well to the GC system by inertia gas for analysis. The method enables the tobacco sample to be directly cracked under aerobic condition, thereby simulating actual tobacco combustion condition and working condition largest possibly. Compared with the inertia atmosphere anaerobic cracking, the test data result is more actual and reliable.

Description

technical field [0001] The invention relates to an analysis method for cracking tobacco, in particular to an analysis method for aerobic cracking of tobacco and a sampling system for realizing the method. Background technique [0002] In the process of cigarette product design and production and processing, in order to improve product quality, it is necessary to study the thermal cracking behavior of tobacco leaves under simulated cigarette combustion conditions, so as to find the relationship between the chemical components of tobacco leaves and smoke components, and then explore the effects of smoke. The formation mechanism of aroma substances and harmful components provides a theoretical basis for the study of cigarette flavor enhancement, tar reduction and harm reduction. The existing CDS hot wire cracker can adopt temperature programming, has a simple structure, can be conveniently connected in front of the chromatographic vaporization chamber, has reliable performance,...

AI Technical Summary

Problems solved by technology

The common disadvantages of the above two methods are: (1) the linear velocity of cracked gas is small, and the real environment of cigarette burning cannot be simulated; (2) the online continuous cracking-sampling method cannot be realized; (3) the adsorption of adsorbent is selective Therefore, effective adsorption cannot be achieved for some pyrolysis products, which in turn will affect the analysis results of pyrolysis

Therefore, neither of the above two techniques can well simulate real cigarette burning conditions.

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