THE STUDY ON THE GASIFICATION CHARACTERISTICS OF IGCC SYSTEM BEING FED WITH COAL AND BIOMASS
Modern applications of scare resources simply mean clean, convenient, efficient, reliable, sustainable, economically and environmentally sound applications. Biomass has been regarded as a major form of renewable energy due to its neutral position in the emission of green house gases such as carbon dioxide. An ASPEN PLUS process flowsheet simulation model was conducted to investigate the effect of co- gasification of coal and rice husk on the performance and pollutant emissions of gasifier in IGCC (Integrated Gasification Combustion Cycle) plants. The analyses were done for an O2-blown, pulverized coal and rice husk as feedstock, parameters of the blending ratio of rice husk in coal and gaseous pollutant index were introduced. Information on the emission of particulate matters such as slag was also analyzed. From the simulation results, due to the decrease in the heating value of rice husk, combustion temperature and energy output from the co-gasification process were lower compared to coal combustion alone. However, it was also seen that pollutant emission was reduced in the co-gasification process. Gaseous pollutant emissions including CO, NOx, H2S and SO2 were reduced substantially with the increase of the blending ratio. An optimum range between 10％ and 30％ rice husk-to-coal ratio was found to be the optimum point in terms of gaseous pollutant index. Simultaneously, Emission of particulate matters was found to increase with co-gasification of rice husk and coal. The finding from this study confirmed that rice husk can be a good renewable fuel for co-firing with coal gasification in terms of energy efficiency and environmental impact.
Co-gasification Biomass Blending ratio Gaseous pollutant indez ASPEN PLUS
Hongyue WANG Hyungtaek KIM Lingling ZHAO Hyunmin SHIM Suyong JUNG Younghoon Kim Nahyoung JANG Hueonnam KUNG Zhigao XU Changsui ZHAO
Division of Energy System, Graduate School, Ajou University, Suwon 443-749, Korea College of Energy and Environment, Southeast University, Nanjing 210-096, China
国际会议
第六届煤燃烧国际会议(The 6th International Symposium on Coal Combustion)
武汉
英文
509-515
2007-12-01（万方平台首次上网日期，不代表论文的发表时间）