Physiochemical structure of semicoke derived from co-carbonization of coal and sawdust blends

被引：2
作者：
Qin, Linbo [1 ,2 ]
Zhao, Bo [1 ,2 ]
Han, Jun [1 ,2 ]
Chen, Wangsheng [1 ,2 ]
机构：
[1] Wuhan Univ Sci & Technol, Coll Resources & Environm Engn, Dept Safety Engn, Wuhan, Peoples R China
[2] Wuhan Univ Sci & Technol, Hubei Key Lab Efficient Utilizat & Agglomerat Met, Wuhan, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 2022年 / 46卷 / 01期
基金：
中国国家自然科学基金;
关键词：
coal blending; co-carbonization; physiochemical structure; sawdust; semicoke; solid-state C-13 NMR;
D O I：
10.1002/er.6380
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：
The substitution of coal blending with sawdust had been widely investigated for metallurgical coke production. In this paper, the physiochemical structures of the semicoke derived from sawdust/coals blends co-coking were characterized by several analytical techniques including FTIR-ATR, XPS, NMR, OM, and SEM. Meanwhile, the influence of the sawdust on the physicochemical properties of the sawdust/coals blends were also investigated. Results indicated that partial substitution of coal blending with sawdust benefited from the formation of colloid and optical anisotropy due to the positive synergetic effect, whereas high proportion of sawdust (>10 wt%) inhibited the agglomeration of semi-coke. On the other hand, the semicoke consisted primarily of aromatic carbons replaced by the oxygen linked to carbons and aliphatic carbons when the coal blending was replaced by high proportion of sawdust, causing a less polyaromatic graphite-like structure formation in the semicoke.
引用
收藏
页码：254 / 266
页数：13
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