Ash Melting Behavior during Co-gasification of Biomass and Polyethylene

被引：9
作者：
Yang, Tianhua [1 ,2 ]
Ma, Jing [1 ,2 ]
Li, Rundong [1 ,2 ]
Kai, Xingping [1 ,2 ]
Liu, Fei [1 ,2 ]
Sun, Yang [1 ,2 ]
Pei, Lianjun [3 ]
机构：
[1] Shenyang Aerosp Univ, Liaoning Key Lab Clean Energy, Shenyang 110136, Peoples R China
[2] Shenyang Aerosp Univ, Sch Energy & Environm, Shenyang 110136, Peoples R China
[3] Tianjin Energy Investment Holding Co Ltd, Tianjin 300100, Peoples R China
来源：
ENERGY & FUELS | 2014年 / 28卷 / 05期
基金：
中国国家自然科学基金;
关键词：
COMBUSTION; DEPOSITION; RELEASE;
D O I：
10.1021/ef4020789
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In the present study, cogasification of straw and polyethylene was investigated in a fixed-bed gasification system. The fusion characteristics of ash during cogasification of two different kind of straw and polyethylene were investigated by AFT (Ash Fusion Test), XRD (X-ray diffraction), XRF (X-ray fluorescence), and SEM-EDX (scanning electron microscopy and energy dispersive X-ray). The results showed that the addition of polyethylene had little influence on the mineral species in the gasified ash and only affected the deformation temperature (DT) of gasified ash. The degree of disintegration of gasified ash was positively correlated to the amount of polyethylene, which was beneficial for the gasification process. The changes in relative contents of acidic oxides (SiO2+P2O5+Al2O3+SO3) and basic oxides (Na2O+K2O+CaO+MgO+Fe2O3) showed a consistent trend in influencing DT of the gasified ashes of two kinds of mixtures while showed different trends in influencing the softening temperatures (ST). PE addition reduces the amount of KCl formed in gasification of RS.
引用
收藏
页码：3096 / 3101
页数：6
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