Abstract
The pyrolysis characteristics of tea under nitrogen atmosphere were investigated, and the heating rate was 5, 10, 15, 20, 25 °C/min. The Kissinger and FWO methods were used to calculate the pyrolysis activation energy of tea. The results showed that the pyrolysis of tea can be divided into three pyrolysis stages: dehydration stage, rapid pyrolysis stage and carbonization stage. As the heating rate increasing, the peak temperature of the maximum pyrolysis rate shifts to the higher temperature, and the conversion rate increased at the peak of the maximum pyrolysis rate. The average value of pyrolysis activation energy of tea was 193.59 kJ/mol.
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