Effects of particle filling and gradation on the properties of coal-water slurries blended with semicoke

被引：9
|
作者：
He, Qihui [1 ,3 ]
Xu, Renfu [1 ,2 ]
Wang, Xin [1 ]
Feng, Yahui [2 ]
Zhai, Junjie [1 ]
Dai, Dongqing [2 ]
Wu, Shishan [1 ]
Shen, Jian [1 ,4 ]
Hu, Baixing [1 ,3 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, Xianlin Ave 163, Nanjing 210023, Jiangsu, Peoples R China
[2] Nanjing Customs Dist Ind Prod Inspect Ctr, Chuangzhi Rd 39, Nanjing 210019, Jiangsu, Peoples R China
[3] Jiangsu Key Lab Vehicle Emiss Control, Hankou Rd 22, Nanjing 210093, Jiangsu, Peoples R China
[4] Nanjing Normal Univ, Natl & Local Joint Engn Res Ctr Biomed Funct Mat, Ninghai Rd 122, Nanjing 210097, Jiangsu, Peoples R China
来源：
POWDER TECHNOLOGY | 2023年 / 416卷
关键词：
Coal-semicoke-water slurry (CSWS); Particle size distribution; Viscosity of slurry; Particle filling; Gradation; Rheological behavior; RHEOLOGICAL CHARACTERISTICS; COKE; PERFORMANCE; ENHANCEMENT; STABILITY; BEHAVIOR; CARBON;
D O I：
10.1016/j.powtec.2023.118229
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Coal-semicoke-water slurry (CSWS) was prepared by blending semicoke with coal-water slury (CWS). The effects of semicoke blending ratio and particle size distribution on the properties of CSWS, such as solid concentration, apparent viscosity, static stability and rheological behavior, were investigated. Also, the particle morphology was observed. The results showed that fine coal particles could fill into the partly destroyed semicoke pores, releasing the bound water and turning it into the free water. The CSWS with high concentration and good stability could be obtained by the combined effects of particle filling and gradation. Additional, CSWS exhibited pseudoplastic behavior, that is, the apparent viscosity decreased with the increase of shear rate. Based on the research results, a reasonable method for preparing CSWS and a new way for utilization of semicoke were proposed.
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页数：9
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