关键词: 水葫芦, 热解, 生物能源, 热重分析, 气相色谱-质谱联用, X射线衍射, 扫描电子显微镜

Abstract: Water hyacinth is a pollutant for the water body and contains a large amount of energy. In order to solve environmental pollution and at the same time provide a certain energy supply，in this paper based on thermogravimetric analysis，the characteristics of gas，liquid and solid products produced from the fixed bed pyrolysis of water hyacinth at different temperature were investigated by GC，GC-MS，XRD and SEM techniques. The results showed that compared with the bio-oil produced at 450—550 ℃ not only the increase of bio-oil at 275—375 ℃ was bigger but also the quality of bio-oil with less acid，more esters and higher calorific value was better；while at 450—550 ℃，it was apparently beneficial for the production of high calorific value gas such as H2 and CO，the aperture of biomass carbon was larger and the crystal structure was more stable. So it is obvious that the pyrolysis temperature has a big effect on the three phase products.

Key words: water hyacinth, pyrolysis, bioenergy, TG, GC-MS, XRD, SEM