SULFUR SPECIATION OF DESULFURIZED COALS BY XANES SPECTROSCOPY

被引：51

作者：

HUFFMAN, GP

SHAH, N

HUGGINS, FE

STOCK, LM

CHATTERJEE, K

KILBANE, JJ

CHOU, MIM

BUCHANAN, DH

机构：

[1] ILLINOIS STATE GEOL SURVEY,CHAMPAIGN,IL 61820

[2] EASTERN ILLINOIS UNIV,CHARLESTON,IL 61920

[3] INST GAS TECHNOL,CHICAGO,IL 60616

[4] ARGONNE NATL LAB,ARGONNE,IL 60439

来源：

FUEL | 1995年 / 74卷 / 04期

关键词：

COAL; SULFUR; QUANTITATION;

D O I：

10.1016/0016-2361(95)98358-L

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：

Least square analysis of the X-ray absorption near edge structure (XANES) region of sulfur K edge X-ray absorption fine structure (XAFS) spectra can provide a quantitative analysis of both the organic and inorganic functional forms of sulfur in coal. In the current article, this method is applied to speciation of the sulfur forms in a number of desulfurized coals. The samples investigated include biologically desulfurized coals, samples subjected to selective chemical reactions, samples subjected to molten caustic leaching and specimens treated with boiling perchloroethylene. In all cases, analysis of XANES provides a reasonably quantitative speciation of the changes in the sulfur forms resulting from the various treatments.

引用

页码：549 / 555

页数：7

共 22 条

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