SOLVENT-EXTRACTION OF ELEMENTAL SULFUR FROM COAL AND A DETERMINATION OF ITS SOURCE USING STABLE SULFUR ISOTOPES

被引：12

作者：

HACKLEY, KC ^{[1
]}

BUCHANAN, DH ^{[1
]}

COOMBS, K ^{[1
]}

CHAVEN, C ^{[1
]}

KRUSE, CW ^{[1
]}

机构：

[1] ILLINOIS STATE GEOL SURV, CHAMPAIGN, IL 61820 USA

来源：

FUEL PROCESSING TECHNOLOGY | 1990年 / 24卷 / 1-3期

关键词：

Chemical Operations--Solvent Extraction - Coal--Desulfurization;

D O I：

10.1016/0378-3820(90)90083-5

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hot tetrachloroethene (perchloroethylene, PCE) extracts significant amounts of elemental sulfur (So) from weathered coals but not from pristine coals. The objective of this study was to determine whether So extracted by PCE is an oxidation product of pyrite or whether it originates in some way from unstable, organically-bound sulfur. The isotopic composition of the PCE-extracted So was compared to the isotopic compositions of the pyritic and the organic sulfur in a coal. The So was shown to have an isotopic signature similar to the pyritic sulfur. Additionally, the isotopic differences observed between the pyritic, So and sulfatic sulfur were consistent with bacterial mediated oxidation of sulfide sulfur (pyrite) as the source of both the sulfatic and elemental sulfur. © 1990.

引用

页码：431 / 436

页数：6

共 20 条

[1] IDENTIFICATION OF SOME SULFUR SPECIES IN A HIGH ORGANIC SULFUR COAL [J].