Improvement in the Caking Property of Lignite by Hydromodification in a CO-Subcritical Water System

被引：8

作者：

Dong, Dongliu ^{[1
]}

Zhang, Yongfa ^{[1
]}

Zhao, Yuqiong ^{[1
]}

Wang, Qi ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Minist Educ & Shanxi Prov, Key Lab Coal Sci & Technol, Taiyuan 030024, Peoples R China

来源：

CHEMISTRY LETTERS | 2014年 / 43卷 / 09期

基金：

中国国家自然科学基金;

关键词：

AQUEOUS CATALYST SYSTEMS; GAS SHIFT REACTION; LIQUEFACTION; COALS;

D O I：

10.1246/cl.140436

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The modification of noncaking lignite to coking coal was carried out using a CO-subcritical water reaction system, and the surface structure of the modified coal was characterized by X-ray photoelectron spectroscopy. The results show that the caking index (G) of the modified coals increases from 24 to 92 during the progress of catalytic hydromodification. Some oxygen-containing functional groups were removed, decreasing the concentration of C-O, C=O, and COO-.

引用

页码：1470 / 1472

页数：3

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