CTAH USTC Joint Research Laboratory for Tobacco Chemistry

Hefei, China

CTAH USTC Joint Research Laboratory for Tobacco Chemistry

Hefei, China
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Zhou S.,Anhui University of Science and Technology | Zhou S.,Industrial Research Ltd. | Ning M.,Industrial Research Ltd. | Ning M.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | And 10 more authors.
Journal of Analytical and Applied Pyrolysis | Year: 2013

In this paper, the APP-modified reconstituted tobacco sheet (RTS) was prepared by a paper-making process. Thermogravimetric analysis coupled to Fourier transform infrared spectrometer (TG-FTIR) had been used to investigate the influences of APP on the thermal degradation and the formation of evolved volatile products of RTS. TG-FTIR results illustrated that the incorporation of APP into RTS could retard the thermal degradation of the major components of RTS and meanwhile lead to the formation of more thermally stable char. Moreover, the main gases released during the pyrolysis of RTS and APP-modified RTS were H2O, CO2, CO, NH3, carbonyl compounds, alcohols and alkanes. The presence of APP changed the formation of evolved volatile products of RTS obviously. The effects of APP on the combustion behavior of RTS were studied by micro-scale combustion calorimetry (MCC), cone calorimetry (CCO) and infrared thermography (IRT). Results demonstrated that the formation of combustible gases was mainly determined by the thermal decomposition stage occurred in the temperature range of 150-600 °C. The incorporation of APP into RTS influenced the release of fuel gases and the char formation in the process of the thermal decomposition of RTS, and eventually retarded the flammability of RTS. In addition, it had been found that the maximum firecone temperature of untreated RTS was higher than that of APP-modified RTS. © 2013 Elsevier B.V.


Zhou S.,Industrial Research Ltd. | Zhou S.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | Ning M.,Industrial Research Ltd. | Ning M.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | And 11 more authors.
Journal of Thermal Analysis and Calorimetry | Year: 2013

In this paper, first the MP-modified reconstituted tobacco sheet (RTS) was prepared by a paper-making process. Thermogravimetric analysis coupled to Fourier transform infrared spectrometer (TG-FTIR) had been used to investigate the influences of melamine phosphate (MP) on the thermal decomposition and the formation of evolved volatile products of RTS. TG-FTIR results illustrated that the incorporation of MP into RTS could retard the thermal decomposition of the major components of RTS and meanwhile lead to the formation of more thermally stable char. Moreover, the main gases released during the pyrolysis of RTS and MP-modified RTS were H2O, CO2, CO, NH3, carbonyl compounds, alcohols, phenols, alkanes, and alkenes. The presence of MP changed the formation of evolved volatile products of RTS obviously. The effects of MP on the combustion behavior of RTS were studied by micro-scale combustion calorimetry and cone calorimetry. Results demonstrated that the formation of combustible gases was mainly determined by the thermal decomposition stage occurred in the temperature range of 150-600 C. The incorporation of MP into RTS influenced the release of fuel gases and the char formation in the process of the thermal decomposition of RTS, and eventually retarded the flammability and combustibility of RTS. © 2012 Akadémiai Kiadó, Budapest, Hungary.


Wang C.,China Tobacco Anhui Industrial Co. | Zhou S.,China Tobacco Anhui Industrial Co. | Zhou S.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | Xu Y.,China Tobacco Anhui Industrial Co. | And 2 more authors.
Tobacco Science and Technology | Year: 2013

Some key combustion character parameters, including heat release, smoke release, mass loss, deliveries of CO and CO2, during combustion of cut reconstituted tobacco (CRT), expanded cut tobacco (ECT) and expanded cut stem (ECS) were compared by means of cone calorimeter. The results indicated that: 1) ECS was less combustible than CRT and ECT. 2) ECT released smoke more rapidly than did CRT and ECS during puffing stage; while obviously slowly than did CRT during smoldering stage. 3) Comparing with CRT and ECT, ECS released less smoke and delivered more CO and less CO2 during the whole combustion process. However, CRT released more smoke than did ECT at smoldering stage. 4) For all the samples, the CO delivery was higher at smoldering stage than at puffing stage; while it was on the contrary for CO2 delivery.


Zhou S.,China Tobacco Anhui Industrial Co. | Zhou S.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | Ning M.,China Tobacco Anhui Industrial Co. | Ning M.,CTAH USTC Joint Research Laboratory for Tobacco Chemistry | And 10 more authors.
Tobacco Science and Technology | Year: 2013

In order to improve the quality of paper-making process reconstituted tobacco sheet (RTS), the effects of ammonium polyphosphate (APP) on the pyrolysis-combustion characteristics and sensory quality of RTS were investigated. The results showed that: 1) The thermal degradation of both RTS and ARTS (APP-containing RTS) consisted of five stages. The application of APP did not change thermal degradation process, but obviously lowered the weight loss rate of RTS at the second (200-280°C), third (280-370°C) and fourth (370-670°C) thermal degradation stages. 2) The main gases released during the pyrolysis of RTS and ARTS were H2O, CO2, CO, NH3, carbonyl compounds, alcohols, and alkanes. 3) The test results of micro-combustion calorimeter and cone calorimeter indicated that the flammability and combustibility of RTS were retarded somewhat by APP addition. 4) ARTS was superior to RTS in terms of aroma quality, concentration, irritation, offensive odor and aftertaste; and especially obvious in irritation and offensive odor reducing.

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