Chemical Decomposition of Iron in Spanish Coal Pyrolysis Identified by Mossbauer Spectroscopy at Different Temperatures

References:

4

Abstract

Three chars from lignite (Se) sub bituminous (AA6), bituminous (BCA) Spanish coals produced at 673 K, 773K and 873K were analyzed by Mossbauer spectroscopy at room temperature, and 80K, except BCA char produced at 873K, its analysis was extended down to 10K.Least square fit analysis for the spectra of Se chars showed that, jarosite/Fe 3+ was hydrolysed into rozenite/Fe 2+ at 873K.Pyrite was reduce...

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Keywords

Mössbauer spectroscopy

Decomposition

Pyrolysis

Coal

Spectroscopy

Materials science

Chemistry

Thermal decomposition

Crystallography

Organic chemistry

Physics

Quantum mechanics

2007

Article

Open Access

Institution

) Physics Department, Faculty of Science, El-Taif University,KSA. (,

) Instituto de Carboquimica, CSIC, Apartado, 50080, Zaragoza, Spain

2-Y Citation Average

1.167

DOI

https://doi.org/10.21608/ejs.2007.149059

Language

en

Country

Saudi Arabia,

Spain

Chemical Decomposition of Iron in Spanish Coal Pyrolysis Identified by Mossbauer Spectroscopy at Different Temperatures

Egyptian journal of solids

M Ahmed, M Blesa, R Moliner

References:

4

Abstract

Three chars from lignite (Se) sub bituminous (AA6), bituminous (BCA) Spanish coals produced at 673 K, 773K and 873K were analyzed by Mossbauer spectroscopy at room temperature, and 80K, except BCA char produced at 873K, its analysis was extended down to 10K.Least square fit analysis for the spectra of Se chars showed that, jarosite/Fe 3+ was hydrolysed into rozenite/Fe 2+ at 873K.Pyrite was reduce...