TGFTIR analysis of seaweed／rice husk blends during copyrolysis
1.School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.Key Laboratory of South China Sea Fishery Resources Exploitation ＆ Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, Guangdong 510300, China
Abstract：To investigate the pyrolysis mechanism of the mixture, the algae mixed with 1∶1 husk was investigated by TGFTIR analysis. The results indicate that the Enteromorpha clathrate is mainly composed of sulfated polysaccharides and protein by microstructure analysis. The main pyrolysis of the EN is a special exothermic process by the differential scanning calorimetry analysis. The pyrolysis of mixture is also exothermal process, which illustrates that the copyrolysis can activate the reaction to achieve energy coupling. The comparison of DTG and calculated curves of the mixture indicates that in the stage of main volatile gases emitting, the pyrolysis rate is increased after mixture. The results show that the mixture feature is not a simple superposition of different component but existing synergy effects. The FTIR analysis of volatile gases during pyrolysis illuminates that due to the copyrolysis of EN and HU, the intensities of CO and SO precipitation peaks are enhanced. According to the kinetic analysis by CoatsRedfern method, it is indicated that activation energy is decreased, and the pyrolysis becomes easier after the mixture.
2015, Vol. 36 
