THERMAL EFFECT AND KINETIC ANALYSIS ON CO-PYROLYSIS OF LOW-RANK COAL WITH CELLULOSE FROM BIOMASS

The prospect of using biomass alone is broad, but there are a number of problems that make it difficult to achieve real profitability. In this paper, the thermal effects and reaction kinetics of cellulose and low-rank coal mixing at different mixing rates (25 wt%, 50 wt.% and 75 wt.%) and different heating rates (10^o C·min^-1, 20 o C·min^-1, 40^o C·min^-1) were studied via thermogravimetric analyzer(TGA). The addition of low-rank coal can promote the formation of volatile substances in the co-pyrolysis process, and the degree of synergy is closely related to the heating rate and blending ratio. The kinetic results show that the average activation is 244.44 kJ·mol-1 and 164.41 kJ·mol^-1 when the low-rank coal blending ratio is 25% and 50%.