Process and product characteristics for carbonization of liquid-solid mixtures from coal liquefaction

被引：10

作者：

You, Quan ^{[1
]}

Wu, Shiyong ^{[1
,2
]}

Wu, Youqing ^{[1
,2
]}

Huang, Sheng ^{[1
,2
]}

Gao, Jinsheng ^{[1
,2
]}

Shang, Jianxuan ^{[3
]}

Min, Xiaojian ^{[3
]}

Zheng, Hua'an ^{[3
]}

机构：

[1] East China Univ Sci & Technol, Sch Resources & Environm Engn, Dept Chem Engn Energy Resources, Shanghai 200237, Peoples R China

[2] East China Univ Sci & Technol, Minist Educ, Key Lab Coal Gasificat & Energy Chem Engn, Shanghai 200237, Peoples R China

[3] Shaanxi Coal & Chem Ind Grp Co Ltd, Xian 710065, Shaanxi, Peoples R China

来源：

JOURNAL OF THE ENERGY INSTITUTE | 2018年 / 91卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbonization; Coal liquefaction residue; Liquid-solid separation; Product distributions; Caking property; LOW-RANK COAL; PETROLEUM COKE; BROWN-COAL; CO2; GASIFICATION; HEAVY PRODUCT; RESIDUE; REACTIVITY; SEPARATION; BIOMASS; LIGNITE;

D O I：

10.1016/j.joei.2017.01.007

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 this paper, a carbonization process for valid liquid-solid separation and upgrading of coal liquefaction residues was proposed and practiced using batch-type devices. The effect of carbonization times and temperatures on the efficiency of liquid-solid separation and product distributions were investigated using self-prepared liquid-solid mixtures (CSMs) from direct coal liquefaction. It was suggested that the carbonization temperature and blowing gases were essential to the efficient liquid-solid separation in this process, and the carbonization process was characterized by the efficient liquid-solid separation. The n-hexane soluble fractions (HS) can be largely separated from CLMs. It was remarkable that over 0.06 -1.50% of HSs can be additionally produced at the higher temperatures (430 degrees C-500 degrees C). On the other hand, the obtained semi-cokes (SCs) were mainly characterized as a rich carbon-containing material with high heating values. Some of the SCs were characterized by the better caking property with the caking index (G) from 68.5 to 75.2. In addition, it was proved that the caking property of SCs is directly affected by the asphaltenes (ASs) instead of pre-asphaltenes (PAs). (C) 2017 Energy Institute. Published by Elsevier Ltd. All rights reserved.

引用

页码：457 / 466

页数：10

共 55 条

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[2]

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