两种海藻与稻壳混合热解的热重-红外联用分析

wo algae mixed with the husk respectively was investigated by TG-DSC-FTIR analysis. No matter the single sample or mixture ,their whole pyrolysis process can be divided into four stages:evaporation, depolymerization, devolatilization and carbonization. The differential scanning calorimetry analysis showed that the main pyrolysis of the of HU was an endothermal process. However, the procedure of mixture was exothermal,which illustrated that the co-prolysis could increase the reaction and achieve energy coupling. The comparison of DTG and calculated curves of the mixture indicated that in the stage of main volatile gases emitted the pyrolysis rate is increased after mixture.The results testified that the mixture feature was not a simple superposition of different component but extised synergy effects.The fourier trandform infrared spectroscopy spectrum of volatile gases during pyrolysis shows that different samples have different compositions. Enteromorpha and sargassum would emit ammonia and sulfur oxides because of there being the protein, soluble polysaccharides and so on. The kinetic analysis was made with Coats-Redfern method.It indicated that activation energy is decreased and the best kinetic model for the pyrolysis of the mixture of alage and rice husk: at the high temperature section is the two reaction equation and at the low is Avrami-Erofeev（n=1）equation.