Characterization of MSW for Thermal Treatment and Development of MSW Fluidized Bed Incineration Technology
China generated over 150 million tons of municipal solid waste (MSW) annually. The proper treatment and dispose is very important for the sustainable development. Thermal treatment has been considered as a primary method for volume and quantity reduction, safe disposal and energy recovery from MSW in many Chinese cities. Currently, the municipal solid waste in China is mixed collection and this leads to the MSW high in moisture content (over 50％) and low in heating value (about 4186 kJ/kg). A novel approach for the characterization of MSW for thermal treatment is introduced. The new approach is based on the physical composition of MSW. Bench scale test results, modeling, model prediction and validation will be introduced. Pilot plant results show the measurement and model prediction agrees well. The mechanism and results of low dioxin emission during MSW and coal co-combustion is analyzed and introduced. Fluidized bed system provides many advantages over other reactors for low grade fuel combustion. Based on fundamental studies, a new circulating fluidized bed MSW incineration technology has been developed. The main features of the technology including the following: multi circulation of solids (internal circulation in the bed, circulation via cyclone, outer circulation of drainage solids) to meet the requirement of low heating value MSW combustion; special design of air distribution to maintain stable operation; optimization of secondary air to reduce the flue gas emission etc. The developed MSW fluidized bed combustion technology has been widely applied in commercial scale. Field tests show that the developed technology is excellent in combustion performance and emission control.
MSW Fluidized bed Incineration Dioxins
Yong CHI Kefa CEN Jianhua YAN Xiaodong LI Xuguang JIANG Zenyi MA Yuqi JIN Fei WANG Shengyong LU Mingjiang NI
State Key Laboratory of Clean Energy Utilization, Institute for Thermal Power Engineering,Zhejiang University, Hangzhou 310027, China
国际会议
北京
英文
1191-1196
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）