The study of coal-derived pyrite using atmospheric pressure temperature programmed reduction (AP-TPR) and TGA

Journal Article · Sun Dec 31 04:00:00 EST 1995 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry

OSTI ID:420590

Maes, I I; Yperman, J; Franco, D V ^[1]

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1. Limburgs Universitair Centrum, Diepenbeek (Belgium); and others

It is possible with AP-TPR to determine qualitatively as well as quantitatively the different organic sulfur forms in coal. The presence of pyrite might disturb an accurate sulfur determination by AP-TPR as is the case in other thermal techniques. Therefore it is important to have an insight into the behavior of pyrite under the reducing experimental conditions. This study presents an explanation for the behavior of pyrite subjected to a linear temperature increase up to 1000{degrees}C in an inert (TGA) as well as reducing (AP-TPR) atmosphere. Two pyrite samples were extracted from coal of the Halemba and Jastrzebie mine. As an example of the consequences of the presence of pyrite in coal, a discussion of the AP-TPR kinetogram of the Siersza coal of high pyritic sulfur content is included.

• OSTI ID: 420590
• Report Number(s): CONF-950801--
• Journal Information: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry, Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry Journal Issue: 3 Vol. 40; ISSN 0569-3772; ISSN ACFPAI
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL
HEATING
PYRITE
SULFUR CONTENT
THERMAL GRAVIMETRIC ANALYSIS