Effect of Typical Oil Spot Pollutants on the Pyrolysis Combustion Characteristics and Reaction Kinetics of Cigarette Paper
Thermogravimetric analysis technique was used to study the effects of typical oil pollutants on the pyrolysis and combustion character-istics of cigarette paper.And the Coats-Redfern thermal analysis kinetics method was used to compare the effects of different oil pollutants on the thermal decomposition kinetics of cigarette paper.The purpose was to provide ideas for understanding the discrimination method of oil point pollutants on cigarette from the point of view of thermal analysis.The results showed that:(l)The oil stains adhered to the surface of the cigarette paper fibers to form a crust-like coating,which changed the microscopic fiber morphology of the cigarette paper.②The weight loss process of cigarette paper can be divided into stages of drying and dehydration,cellulose decomposition,lignin decomposition and carbonization,and inor-ganic salt decomposition.During the pyrolysis process,the decomposition of oil spot pollutants occurred in the stage of lignin decomposition and carbonization,and significantly changed the weight loss behavior in this stage.The weight loss process of different cigarette papers during com-bustion process included four decomposition stages,and different oil pollutants have different effects on the comprehensive combustion character-istic index S of cigarette papers.③The kinetic analysis of the main thermal decomposition reaction stages showed that the lubricating oil changed the reaction mechanism of during the stage of cellulose pyrolysis and combustion process.And the contamination of cigarette paper with lubrica-ting oil increased the activation energy of pyrolysis stage 11,while the activation energy of this stage was reduced during the combustion process.Moreover,the contamination with lubricating oil exhibited an increasing effect on the activation energy in stage Ⅲ during both combustion and pyrolysis process.
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维普
