Influence of oxidation in aqueous medium on the structure and properties of lignites

S. Yaman; S. Kucukbayrak

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Influence of oxidation in aqueous medium on the structure and properties of lignites

机译：水性介质中氧化对褐煤结构和性能的影响

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In this paper, the effect of oxygen uptake on the structure and properties of lignites was investigated using five different Turkish lignites. Lignite samples were oxidised in aqueous medium at 423 K under l.5 MPa partial pressure of oxygen for 60 min. Relations between the oxygen uptake and the elemental compositions of the lignite samples were investigated. FT-i.r. technique was applied to the original and oxidised lignite sampIes to investigate functional group analyses. Mercury porosimetry analyses of the samples were carried out up to about 220 MPa. Effect of oxygen uptake on the bulk density, apparent density, porosity, and pore radius of the lignite samples were compared. Differential Thermogravimetry (DTG) technique was performed to compare the thermal reactivity of the original and oxidised lignite samples.

机译：在本文中，使用五种不同的土耳其褐煤研究了摄氧量对褐煤结构和性能的影响。褐煤样品在423 K的水介质中，1.5 MPa的氧气分压下氧化60分钟。研究了氧吸收与褐煤样品元素组成之间的关系。 FT-i.r。将该技术应用于原始的和氧化的褐煤样品以研究官能团分析。样品的汞孔隙率分析在最高约220 MPa的条件下进行。比较了氧气吸收对褐煤样品的堆积密度，表观密度，孔隙率和孔半径的影响。进行差示热重分析（DTG）技术以比较原始褐煤和氧化褐煤样品的热反应性。

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来源
《Fuel》 |2000年第7期|p.777-783|共7页
作者
S. Yaman; S. Kucukbayrak;
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作者单位

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类燃料化学工业（总论）;热力工程、热机;
关键词
Lignite; Oxidation; Structure;

机译：褐煤;氧化;结构体;

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Influence of oxidation in aqueous medium on the structure and properties of lignites

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