Tobacco aerobic cracking analysis system

Abstract

A tobacco aerobic cracking sampling system includes a cracker and an inert gas inlet. A cracking chamber and a cracking pool are arranged in the cracker. An eight-way valve is arranged in the cracking chamber. A second valve port of the eight-way valve is communicated with a gas inlet of the cracking pool. A seventh valve port of the eight-way valve is communicated with a gas outlet of the cracking pool. An eighth valve port of the eight-way valve empties. The tobacco aerobic cracking sampling system also includes a mixed gas inlet. The mixed gas inlet and the inert gas inlet are connected the eight-way valve through a four-way valve. A first valve port of the four-way valve is communicated with a third valve port of the eight-way valve. A second valve port of the four-way valve is communicated with the mixed gas inlet. A third valve of the four-way valve is communicated with the first valve port of the eight-way valve. A fourth port of the four-way valve is communicated with the inert gas inlet. A fifth valve port of the eight-way valve is communicated with a cold trap. The cold trap is connected to a GC chromatogram system. The system can ensure the continuous sampling and smooth transition.

Description

technical field [0001] The invention relates to a tobacco cracking and sampling system. 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, is widely used, and is widely used in the tobacco industry. However, since the ordinary capillary chromatographic c...

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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