Author(s)

Dandan Xie, Huaxu Ling, Qiang Cao, Yang Lu, Guizhen Gong

Corresponding Author

Guizhen Gong

Abstract

Pyrolysis of the mixture of Beisu coal and rice straw was studied with thermogravimetric analysis (TG). The results show that with the decrease of the mass ratio of Beishu coal in the mixture, the weight loss of the mixture of straw and Beishu coal increases gradually during pyrolysis. There are two main thermogravimetric peaks in the DTG curve of the mixture between 200~550 oC, which are between the thermogravimetric regions of straw and Beishu coal pyrolysis alone. The co-pyrolysis process of the mixture of Beishu coal and straw with a mass ratio of 3:1 was compared with that of the mixture at different heating rates. It was concluded that the increase of heating rate would result in the increase of temperature required for the pyrolysis reaction of the mixture and the increase of residual pyrolysis products. There is a synergistic effect between the coal and straw in the process of CO pyrolysis.

Keywords

Coal, Straw, Co-pyrolysis, TG