Experimental study on MSW gasification and melting technology.
In order to develop municipal solid waste (MSW) gasification and melting technology, two preliminary experiments and a principle integrated experiment were fulfilled respectively. The gasification characteristics of MSW were studied at 500-750 degrees C when equivalence ratio (ER) was 0.2-0.5 using a fluidized-bed gasifier. When temperature was 550-700 degrees C and ER was 0.2-0.4, low heat value (LHV) of syngas reaches 4000-12000 kJ/Nm3. The melting characteristics of fly ash were investigated at 1100-1460 degrees C using a fixed-bed furnace. It was proved that over 99.9% of dioxins could be decomposed and most heavy-metals could be solidified when temperature was 1100-1300 degrees C. The principle integrated experiment was carried out in a fluidized-bed gasification and swirl-melting system. MSW was gasified efficiently at 550-650 degrees C, swirl-melting furnace maintains at 1200-1300 degrees C stably and over 95% of fly ash could be caught by the swirl-melting furnace. The results provided much practical experience and basic data to develop MSW gasification and melting technology.
Xiao
Gang
G
Key Laboratory of Clean Coal Power Generation and Combustion Technology of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China. xiaogangtianmen@seu.edu.cn
Jin
Bao-sheng
BS
Zhong
Zhao-ping
ZP
Chi
Yong
Y
Ni
Ming-jiang
MJ
Cen
Ke-fa
KF
Xiao
Rui
R
Huang
Ya-ji
YJ
Huang
He
H
D002244:Carbon / Q000737:chemistry; D002947:Cities; D060729:Coal Ash; D004147:Dioxins / Q000737:chemistry; D005740:Gases / Q000737:chemistry*; D017745:Incineration / Q000379:methods*; D019216:Metals, Heavy / Q000737:chemistry; D052638:Particulate Matter / Q000737:chemistry; D012037:Refuse Disposal / Q000379:methods*; D013696:Temperature
D060729:Coal Ash; D004147:Dioxins; D005740:Gases; D019216:Metals, Heavy; D052638:Particulate Matter; D002244:Carbon