Study on the Pyrolysis Characterization of Rice Husk Var in CO2/N2 Atmosphere

The pyrolysis characteristics of rice husk under CO2/N-2 atmosphere were studied mainly by thermogravimetric differential thermal analysis, in which the pyrolysis kinetics of rice husk under CO2/N-2 atmosphere was analyzed by Coats Redfern method, and the pyrolysis products of rice husk under CO2/N-2 atmosphere were studied by a two-stage fixed-bed pyrolysis reactor. The results showed that the fitted curves had good correlation in the main pyrolysis temperature range of rice husk, and the activation energy of pyrolysis was between 67.858 kJ/mol and 80.394 kJ/mol; during the pyrolysis of rice husk under CO2/N-2 atmosphere, the addition of CO2 gas could promote the positive conversion of CO2, which was more inclined to produce C2H6 and C3H6; meanwhile, it could promote the decomposition of some macromolecular biological compounds.