Research on Biomass-Oxygen Gasification in High-Temperature Entrained Flow Gasifier
Nowadays, the technology of biomass indirect liquefaction has aroused more and more attention, as it could ensure the supply of transportation fuels and diminish the petroleum usage. The characteristics of biomass-oxygen gasification in a bench-scale laminar entrained flow gasifier were studied in the paper. Experiments were carried out to investigate the influence of some main factors, including reaction temperature, residence time and oxygen/biomass ratio on the gasification. The results indicated that higher temperature favored H2 and CO production. And the cold gas efficiency was improved about more than 10％ with the temperature varying from 1000 to 1400℃. With the increasing residence time, the carbon conversion increased, and syngas quality was improved. A shorter residence time would result in gasifying incompletely. The residence time of 1.6 s was found as the optimum in this study. The introduction of oxygen to the gasifier strengthened the gasification and improved the carbon conversion, but lowered the LHV and the H2/CO ratio of the syngas. The appropriate Oxygen /biomass ratio was 0.4 in this study. The results would be helpful for understanding the syngas production by the biomass high-temperature gasification.
Biomass Syngas Entrained flow gasification Oxygen
Jing-song ZHOU Qing CHEN Hui ZHAO Xiao-wei CAO Qin-feng MEI Zhong-yang LUO Ke-fa CEN
State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou,310027,China
国际会议
广州
英文
960-965
2008-12-03（万方平台首次上网日期，不代表论文的发表时间）