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GC-MS Analyzing of Coal Tar of Lignite Briquette from Low Temperature Pyrolysis

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Abstract:

Distillation and GC-MS were employed to analysis the coal tar of low-temperature pyrolysis of lignite briquette by contrasting with standards: the fraction below 340°C in the tar distillates of brown coal tar accounted for 83.30% and the other greater than 340°C is pitch accounted for 16.32%. 34.00% of coal tar are hydrocarbons which are mainly consisted of fat aliphatic hydrocarbon and include few alkene and cycloparaffins. The content of phenolic compounds in coal tar, mainly comes from the fraction below 210°C, is 11.68%. 16.86% of coal tar is aromatic compounds which are mainly composed of substitutive derivative of polyalkylbenzene distributing in all kinds of fractions; and a small amount of aromatic compounds which is concentrated in the fraction below 300°C. The content of oxygen-containing, nitrogen-containing and heterocyclic compounds is 4.47%, 0.57%, 2.11%, respectively.

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Periodical:

Applied Mechanics and Materials (Volume 472)

Pages:

591-595

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.472.591

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Online since:

January 2014

Authors:

Xin Tao Cui, Yong Fa Zhang*, Dong Liu Dong, Yu Qiong Zhao

Keywords:

Briquette, Coal Tar, Gc-Ms, Lignite Coal

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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