A new physical process for desulfurization of low-rank coals

被引：36

作者：

Çelik, MS ^{[1
]}

Yildirim, I ^{[1
]}

机构：

[1] Istanbul Tech Univ, Min Fac, Coal & Mineral Proc Sect, TR-80626 Istanbul, Turkey

来源：

FUEL | 2000年 / 79卷 / 13期

关键词：

coal; lignite; low-rank coals; desulfurization of coal; magnetic separation; low temperature carbonization;

D O I：

10.1016/S0016-2361(00)00013-2

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：

A processing route involving low temperature carbonization followed by dry magnetic separation is put forward for the desulfurization and deashing of typical low-rank lignitic coals. The -3 mm lignite samples were subjected to low temperature carbonization at 600 degrees C for 15 min and then upgraded by magnetic separation. Under optimum conditions, a remarkable decrease in both ash and more importantly in total and particularly organic sulfur was achieved. A systematic study of the mechanism of the sulfur removal together with the literature findings reveals the formation of an iron-sulfur coordination compound in coal. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1665 / 1669

页数：5