Characterisation of Spanish coal by means of Mossbauer spectroscopy

被引：22

作者：

Ahmed, MA ^{[1
]}

Vandenberghe, RE

De Grave, E

Eissa, NA

Ibarra, JV

机构：

[1] Al Azhar Univ, Fac Sci, Dept Phys, Mossbauer Lab, Cairo, Egypt

[2] NUMAT, Subatom & Radiat Phys, B-9000 Ghent, Belgium

[3] CSIC, Inst Carboquim, Zaragoza 50080, Spain

来源：

FUEL | 1999年 / 78卷 / 04期

关键词：

Mossbauer; coal; rank; aromaticity;

D O I：

10.1016/S0016-2361(98)00155-0

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：

Seven Spanish coals from lignite to semi-anthracite have been characterised by Mossbauer spectroscopy (MS) at room temperature (RT) and 80 K. The aromaticities as obtained from Fourier transform infrared spectroscopy (FTIR) varied from 0.44 to 0.96. From the analysis of the Mossbauer spectra the iron bearing minerals were found to be mainly pyrite and sulphates in ail the samples. Jarosite was only found to be present in lignite, brown and sub-bituminous coal. However, iron carbonates, mainly as siderite were only detected in the bituminous and semi-anthracite that have higher aromaticities (0.71, 0.95 and 0.96). (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：453 / 457

页数：5

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