EFFECT OF ACETYLATION ON CAKING PROPERTIES OF BITUMINOUS COALS

被引：5

作者：

SEKI, H ^{[1
]}

ITO, O ^{[1
]}

IINO, M ^{[1
]}

机构：

[1] TOHOKU UNIV,CHEM RES INST NONAQUEOUS SOLUT,AOBA KU,SENDAI,MIYAGI 980,JAPAN

来源：

ENERGY & FUELS | 1990年 / 4卷 / 04期

关键词：

D O I：

10.1021/ef00022a003

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 effect of acetylation for five bituminous coals on caking properties and extraction yield was examined. The Roga index for all the coals used was decreased by acetylation. The free swelling index (FSI) for the coals with low fluidity was also decreased by acetylation. For Shin-yubari and Zao Zhuang coals, which possess considerably high fluidities, the FSI was slightly increased by acetylation, suggesting the existence of an optimum fluidity for coal swelling. The extraction yield with mixed solvents for the acetylated coals was decreased. ESR and swelling ratio measurements of the heat-treated acetylated coals showed that cross-links were formed during heat treatment, leading to the reduction of caking properties. © 1990, American Chemical Society. All rights reserved.

引用

页码：352 / 355

页数：4